From 4428c700070e0995e9179ea202f34712568f7403 Mon Sep 17 00:00:00 2001 From: Vyacheslav Boyko Date: Wed, 6 Jul 2022 23:01:34 +0300 Subject: [PATCH 01/10] simple refactoring --- .../ru/bvn13/fsm/Exceptions/FSMException.java | 2 +- src/main/java/ru/bvn13/fsm/FSM.java | 30 +++---- src/test/java/ru/bvn13/fsm/tests/FsmTest.java | 71 +++++++++++++++ src/test/java/ru/bvn13/fsm/tests/Tests.java | 87 ------------------- 4 files changed, 87 insertions(+), 103 deletions(-) create mode 100644 src/test/java/ru/bvn13/fsm/tests/FsmTest.java delete mode 100644 src/test/java/ru/bvn13/fsm/tests/Tests.java diff --git a/src/main/java/ru/bvn13/fsm/Exceptions/FSMException.java b/src/main/java/ru/bvn13/fsm/Exceptions/FSMException.java index f1e4aa1..55c6cac 100644 --- a/src/main/java/ru/bvn13/fsm/Exceptions/FSMException.java +++ b/src/main/java/ru/bvn13/fsm/Exceptions/FSMException.java @@ -6,7 +6,7 @@ import java.io.StringWriter; /** * Created by bvn13 on 28.12.2017. */ -public class FSMException extends Exception { +public class FSMException extends RuntimeException { protected String message; public FSMException(String message) { this.message = message; diff --git a/src/main/java/ru/bvn13/fsm/FSM.java b/src/main/java/ru/bvn13/fsm/FSM.java index a220ddf..4195262 100644 --- a/src/main/java/ru/bvn13/fsm/FSM.java +++ b/src/main/java/ru/bvn13/fsm/FSM.java @@ -16,20 +16,14 @@ public class FSM { private State initialState; private State currentState; private State previousState; - private Map states; - private Map> transitions; + private final Map states; + private final Map> transitions; public FSM() { this.states = new HashMap<>(); this.transitions = new HashMap<>(); } - private void checkStateExist(String name) throws StateExistsException { - if (this.states.containsKey(name)) { - throw new StateExistsException(name); - } - } - public void init() throws NotInitedException { currentState = initialState; if (currentState == null) { @@ -91,13 +85,6 @@ public class FSM { nextState(getPreviousState()); } - private void nextState(State state) { - state.beforeEvent(); - previousState = currentState; - currentState = state; - currentState.process(); - } - public void initState(State state) throws FSMException { state.setFSM(this); addState(state); @@ -129,6 +116,19 @@ public class FSM { addTransition(fromState, toState.getName(), condition); } + private void nextState(State state) { + state.beforeEvent(); + previousState = currentState; + currentState = state; + currentState.process(); + } + + private void checkStateExist(String name) throws StateExistsException { + if (this.states.containsKey(name)) { + throw new StateExistsException(name); + } + } + private void storeTransition(String fromState, String toState, Condition condition) throws FSMException { if (!transitions.containsKey(fromState)) { transitions.put(fromState, new HashMap<>()); diff --git a/src/test/java/ru/bvn13/fsm/tests/FsmTest.java b/src/test/java/ru/bvn13/fsm/tests/FsmTest.java new file mode 100644 index 0000000..9032d4d --- /dev/null +++ b/src/test/java/ru/bvn13/fsm/tests/FsmTest.java @@ -0,0 +1,71 @@ +package ru.bvn13.fsm.tests; + +import org.junit.Assert; +import org.junit.Test; +import ru.bvn13.fsm.Condition; +import ru.bvn13.fsm.FSM; +import ru.bvn13.fsm.State; + +/** + * Created by bvn13 on 28.12.2017. + */ +public class FsmTest { + + public static class NamedFSM extends FSM { + + public NamedFSM() { + super(); + } + + private String name; + + public NamedFSM setName(String name) { + this.name = name; + return this; + } + + public String toString() { + return this.name; + } + } + + + @Test + public void creatingFSM() { + + NamedFSM fsm = (new NamedFSM()).setName("TEST FSM"); + + fsm.initState(new State("init") { + @Override + public void process() { + System.out.println("" + fsm + " -> " + getName() + ": processed init"); + } + }); + + fsm.addTransition("init", new State("first", true) { + @Override + public void process() { + System.out.println("" + fsm + " -> " + getName() + ": processed first"); + } + }); + + fsm.addTransition("init", new State("another", true) { + @Override + public void process() { + System.out.println("" + fsm + " -> " + getName() + ": processed first"); + } + }, new Condition() { + @Override + public boolean check() { + return false; + } + }); + + fsm.init(); + fsm.next(); + + Assert.assertEquals("first", fsm.getCurrentState().getName()); + + } + +} diff --git a/src/test/java/ru/bvn13/fsm/tests/Tests.java b/src/test/java/ru/bvn13/fsm/tests/Tests.java deleted file mode 100644 index e644e5a..0000000 --- a/src/test/java/ru/bvn13/fsm/tests/Tests.java +++ /dev/null @@ -1,87 +0,0 @@ -package ru.bvn13.fsm.tests; - -import org.junit.Assert; -import org.junit.Test; -import ru.bvn13.fsm.Exceptions.FSMException; -import ru.bvn13.fsm.Exceptions.NotInitedException; -import ru.bvn13.fsm.FSM; -import ru.bvn13.fsm.State; - -/** - * Created by bvn13 on 28.12.2017. - */ -public class Tests { - - public static class NamedFSM extends FSM { - - public NamedFSM() { - super(); - } - - private String name; - public NamedFSM setName(String name) { - this.name = name; - return this; - } - - public String toString() { - return this.name; - } - } - - - - @Test - public void creatingFSM() { - - NamedFSM fsm = (new NamedFSM()).setName("TEST FSM"); - Assert.assertNotNull(fsm); - - try { - fsm.initState(new State("init") { - @Override - public void process() { - System.out.println("" + fsm + " -> " + getName() + ": processed init"); - try { - fsm.next(); - } catch (FSMException e) { - e.printStackTrace(); - Assert.fail(); - } - } - }); - } catch (FSMException e) { - e.printStackTrace(); - Assert.fail(); - } - - try { - fsm.addTransition("init", new State("first", true) { - @Override - public void process() { - System.out.println("" + fsm + " -> " + getName() + ": processed first"); - try { - fsm.next(); - } catch (FSMException e) { - e.printStackTrace(); - Assert.fail(); - } - } - }); - } catch (FSMException e) { - e.printStackTrace(); - Assert.fail(); - } - - try { - fsm.init(); - } catch (NotInitedException e) { - e.printStackTrace(); - Assert.fail(); - } - - Assert.assertTrue(fsm.getCurrentState().getName().equals("first")); - - } - -} From cf19f758729ebf04f732225943fd994409d2488a Mon Sep 17 00:00:00 2001 From: Vyacheslav Boyko Date: Thu, 7 Jul 2022 02:15:12 +0300 Subject: [PATCH 02/10] new fluent syntax --- src/main/java/me/bvn13/fsm/Condition.java | 9 + .../java/me/bvn13/fsm/ConditionBuilder.java | 34 +++ src/main/java/me/bvn13/fsm/Fsm.java | 267 ++++++++++++++++++ src/main/java/me/bvn13/fsm/FsmBuilder.java | 52 ++++ src/main/java/me/bvn13/fsm/SimpleFsm.java | 9 + src/main/java/{ru => me}/bvn13/fsm/State.java | 12 +- .../java/me/bvn13/fsm/StateBehaviour.java | 20 ++ src/main/java/me/bvn13/fsm/StateBuilder.java | 59 ++++ src/main/java/me/bvn13/fsm/StateHandler.java | 12 + .../java/me/bvn13/fsm/StateProcessor.java | 13 + .../java/me/bvn13/fsm/dummy/DummyHandler.java | 11 + .../me/bvn13/fsm/dummy/DummyProcessor.java | 11 + .../AmbiguousTransitionException.java | 6 +- .../exceptions/BrokenTransitionException.java | 10 + .../ConditionAlreadyExistsException.java | 10 + .../bvn13/fsm/exceptions/FsmException.java} | 8 +- .../exceptions/NotInitializedException.java | 13 + .../StateAlreadyExistsException.java | 10 + .../exceptions/TransitionMissedException.java | 10 + src/main/java/ru/bvn13/fsm/Condition.java | 20 -- .../java/ru/bvn13/fsm/ConditionBehaviour.java | 8 - .../Exceptions/BrokenTransitionException.java | 10 - .../Exceptions/ConditionExistsException.java | 10 - .../fsm/Exceptions/NotInitedException.java | 13 - .../fsm/Exceptions/StateExistsException.java | 10 - .../Exceptions/TransitionMissedException.java | 10 - src/main/java/ru/bvn13/fsm/FSM.java | 142 ---------- .../java/ru/bvn13/fsm/StateBehaviour.java | 20 -- .../bvn13/fsm/examples/DialogApplication.java | 108 ------- src/test/java/me/bvn13/fsm/tests/FsmTest.java | 123 ++++++++ .../fsm/tests/examples/DialogApplication.java | 77 +++++ src/test/java/ru/bvn13/fsm/tests/FsmTest.java | 71 ----- 32 files changed, 763 insertions(+), 435 deletions(-) create mode 100644 src/main/java/me/bvn13/fsm/Condition.java create mode 100644 src/main/java/me/bvn13/fsm/ConditionBuilder.java create mode 100644 src/main/java/me/bvn13/fsm/Fsm.java create mode 100644 src/main/java/me/bvn13/fsm/FsmBuilder.java create mode 100644 src/main/java/me/bvn13/fsm/SimpleFsm.java rename src/main/java/{ru => me}/bvn13/fsm/State.java (69%) create mode 100644 src/main/java/me/bvn13/fsm/StateBehaviour.java create mode 100644 src/main/java/me/bvn13/fsm/StateBuilder.java create mode 100644 src/main/java/me/bvn13/fsm/StateHandler.java create mode 100644 src/main/java/me/bvn13/fsm/StateProcessor.java create mode 100644 src/main/java/me/bvn13/fsm/dummy/DummyHandler.java create mode 100644 src/main/java/me/bvn13/fsm/dummy/DummyProcessor.java rename src/main/java/{ru/bvn13/fsm/Exceptions => me/bvn13/fsm/exceptions}/AmbiguousTransitionException.java (71%) create mode 100644 src/main/java/me/bvn13/fsm/exceptions/BrokenTransitionException.java create mode 100644 src/main/java/me/bvn13/fsm/exceptions/ConditionAlreadyExistsException.java rename src/main/java/{ru/bvn13/fsm/Exceptions/FSMException.java => me/bvn13/fsm/exceptions/FsmException.java} (74%) create mode 100644 src/main/java/me/bvn13/fsm/exceptions/NotInitializedException.java create mode 100644 src/main/java/me/bvn13/fsm/exceptions/StateAlreadyExistsException.java create mode 100644 src/main/java/me/bvn13/fsm/exceptions/TransitionMissedException.java delete mode 100644 src/main/java/ru/bvn13/fsm/Condition.java delete mode 100644 src/main/java/ru/bvn13/fsm/ConditionBehaviour.java delete mode 100644 src/main/java/ru/bvn13/fsm/Exceptions/BrokenTransitionException.java delete mode 100644 src/main/java/ru/bvn13/fsm/Exceptions/ConditionExistsException.java delete mode 100644 src/main/java/ru/bvn13/fsm/Exceptions/NotInitedException.java delete mode 100644 src/main/java/ru/bvn13/fsm/Exceptions/StateExistsException.java delete mode 100644 src/main/java/ru/bvn13/fsm/Exceptions/TransitionMissedException.java delete mode 100644 src/main/java/ru/bvn13/fsm/FSM.java delete mode 100644 src/main/java/ru/bvn13/fsm/StateBehaviour.java delete mode 100644 src/main/java/ru/bvn13/fsm/examples/DialogApplication.java create mode 100644 src/test/java/me/bvn13/fsm/tests/FsmTest.java create mode 100644 src/test/java/me/bvn13/fsm/tests/examples/DialogApplication.java delete mode 100644 src/test/java/ru/bvn13/fsm/tests/FsmTest.java diff --git a/src/main/java/me/bvn13/fsm/Condition.java b/src/main/java/me/bvn13/fsm/Condition.java new file mode 100644 index 0000000..52816d7 --- /dev/null +++ b/src/main/java/me/bvn13/fsm/Condition.java @@ -0,0 +1,9 @@ +package me.bvn13.fsm; + +/** + * Condition of transitions + */ +@FunctionalInterface +public interface Condition { + boolean check(T fsm, E event); +} diff --git a/src/main/java/me/bvn13/fsm/ConditionBuilder.java b/src/main/java/me/bvn13/fsm/ConditionBuilder.java new file mode 100644 index 0000000..ccdb607 --- /dev/null +++ b/src/main/java/me/bvn13/fsm/ConditionBuilder.java @@ -0,0 +1,34 @@ +package me.bvn13.fsm; + +public class ConditionBuilder { + + private final FsmBuilder fsmBuilder; + private String from; + private String to; + private Condition condition; + + ConditionBuilder(FsmBuilder fsmBuilder) { + this.fsmBuilder = fsmBuilder; + } + + public ConditionBuilder from(String from) { + this.from = from; + return this; + } + + public ConditionBuilder to(String to) { + this.to = to; + return this; + } + + public ConditionBuilder checking(Condition condition) { + this.condition = condition; + return this; + } + + public FsmBuilder end() { + fsmBuilder.addTransition(from, to, condition); + return fsmBuilder; + } + +} diff --git a/src/main/java/me/bvn13/fsm/Fsm.java b/src/main/java/me/bvn13/fsm/Fsm.java new file mode 100644 index 0000000..5d66b3f --- /dev/null +++ b/src/main/java/me/bvn13/fsm/Fsm.java @@ -0,0 +1,267 @@ +package me.bvn13.fsm; + +import me.bvn13.fsm.exceptions.AmbiguousTransitionException; +import me.bvn13.fsm.exceptions.BrokenTransitionException; +import me.bvn13.fsm.exceptions.ConditionAlreadyExistsException; +import me.bvn13.fsm.exceptions.FsmException; +import me.bvn13.fsm.exceptions.NotInitializedException; +import me.bvn13.fsm.exceptions.StateAlreadyExistsException; +import me.bvn13.fsm.exceptions.TransitionMissedException; + +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.function.Supplier; + +/** + *

+ * Final State Machine
+ *

+ *

+ *

    + * Each state machine must be prepared with: + *
  1. Initial state
    2. + *
  2. Finish state - may be not several states
    3. + *
  3. Intermediate states - optionally
    4. + *
  4. All transitions needed
    5. + *
+ *

+ * + *

+ *

    + * Each {@link State} may be specified with handlers: + *
  1. Before handler - is called right before FSM changes INTO this state
    2. + *
  2. After handler - is called right before FSM changes FROM this state to another
    3. + *
  3. Processor - the method to process events
    4. + *
+ *

+ * + *

+ * Transition is the Rule provides FSM the possibility to change between states. + * + * Each transition must be determined in terms of: + *

    + *
  1. From State - mandatory
    2. + *
  2. To State - mandatory
    3. + *
  3. Condition - optionally. If specified, the FSM will check the condition in order to check the possibility + * to change from FROM State into TO State
    4. + *
+ *

+ * + * + * Simple way to use it - to construct an inherited class specified with the type of events to be processed + * during transitions. + * 
+ *  {@code
+ *  SimpleFsm simpleFsm = SimpleFsm
+ *    ., String>withStates(SimpleFsm::new)
+ *      .from("init")
+ *      .withBeforeHandler(fsm -> initBefore.set(true))
+ *      .withAfterHandler(fsm -> initAfter.set(true))
+ *      .withProcessor((fsm, event) -> initProcess.set(true))
+ *    .end()
+ *    .finish("finish")
+ *      .withBeforeHandler(fsm -> finishBefore.set(true))
+ *      .withAfterHandler(fsm -> finishAfter.set(true))
+ *      .withProcessor((fsm, event) -> finishProcess.set(true))
+ *    .end()
+ *    .withTransition()
+ *      .from("init")
+ *      .to("finish")
+ *      .checking((fsm, event) -> true)
+ *    .end()
+ *    .create();
+ *  }
+ *
+ * + * {@link SimpleFsm} + */ +public class Fsm { + + private boolean done = false; + private State initialState; + private State currentState; + private State previousState; + private final Map> states = new HashMap<>(); + private final Map>> transitions = new HashMap<>(); + + /** + * Initiate a builder + * + * @param supplier the original FSM inherited class constructor. You may specify '{@code () -> new SimpleFsm()}' in parameter + * @return FsmBuilder + * @param the original FSM inherited class type + * @param the class type of Events to be processed + */ + @SuppressWarnings("unchecked") + public static FsmBuilder withStates(Supplier supplier) { + return new FsmBuilder<>(supplier); + } + + /** + * To initialize FSM into initial state + * @throws NotInitializedException + */ + public void init() throws NotInitializedException { + currentState = initialState; + if (currentState == null) { + throw new NotInitializedException(); + } + done = false; + previousState = null; + currentState.beforeEvent(); + } + + /** + * Returns current state + * + * @return {@link State} + */ + public State getCurrentState() { + return currentState; + } + + /** + * Returns previous state + * + * @return {@link State} + */ + public State getPreviousState() { + return previousState; + } + + /** + * Main method to handle every event + * + * @param event event + * @throws FsmException + */ + @SuppressWarnings("unchecked") + public void process(E event) throws FsmException { + if (done) { + return; + } + currentState.afterEvent(); + if (currentState.isFinish()) { + done = true; + return; + } + if (!transitions.containsKey(currentState.getName())) { + throw new TransitionMissedException(currentState.getName()); + } + Map> conditions = transitions.get(currentState.getName()); + List nextStates = new ArrayList<>(); + for (String key : conditions.keySet()) { + if (conditions.get(key) == null) { + nextStates.add(key); + } else if(conditions.get(key).check((T) this, event)) { + nextStates.add(key); + } + } + if (nextStates.size() > 1) { + throw new AmbiguousTransitionException(currentState.getName(), nextStates); + } + if (nextStates.size() == 0) { + throw new BrokenTransitionException(currentState.getName()); + } + State nextState = states.get(nextStates.get(0)); + nextState(nextState, event); + } + + /** + * To specify initial state + * + * @param state {@link State} + * @throws FsmException + */ + public void initState(State state) throws FsmException { + state.setFSM(this); + addState(state); + initialState = state; + } + + /** + * To add another state + * + * @param state {@link State} + * @throws FsmException + */ + public void addState(State state) throws FsmException { + checkStateExist(state.getName()); + state.setFSM(this); + this.states.put(state.getName(), state); + } + + /** + * To set the transition up + * + * @param fromState {@link State} + * @param toState {@link State} + * @throws FsmException + */ + public void addTransition(String fromState, String toState) throws FsmException { + storeTransition(fromState, toState, null); + } + + /** + * To set the transition up + * + * @param fromState {@link State} + * @param toState {@link State} + * @param condition {@link Condition} + * @throws FsmException + */ + public void addTransition(String fromState, String toState, Condition condition) throws FsmException { + storeTransition(fromState, toState, condition); + } + + /** + * To set the transition up + * + * @param fromState {@link State} + * @param toState {@link State} + * @throws FsmException + */ + public void addTransition(String fromState, State toState) throws FsmException { + addState(toState); + addTransition(fromState, toState.getName()); + } + + /** + * To set the transition up + * + * @param fromState {@link State} + * @param toState {@link State} + * @param condition {@link Condition} + * @throws FsmException + */ + public void addTransition(String fromState, State toState, Condition condition) throws FsmException { + addState(toState); + addTransition(fromState, toState.getName(), condition); + } + + private void nextState(State state, E event) { + state.beforeEvent(); + previousState = currentState; + currentState = state; + currentState.process(event); + } + + private void checkStateExist(String name) throws StateAlreadyExistsException { + if (this.states.containsKey(name)) { + throw new StateAlreadyExistsException(name); + } + } + + private void storeTransition(String fromState, String toState, Condition condition) throws FsmException { + if (!transitions.containsKey(fromState)) { + transitions.put(fromState, new HashMap<>()); + } + if (transitions.get(fromState).containsKey(toState)) { + throw new ConditionAlreadyExistsException(fromState, toState); + } + transitions.get(fromState).put(toState, condition); + } + +} diff --git a/src/main/java/me/bvn13/fsm/FsmBuilder.java b/src/main/java/me/bvn13/fsm/FsmBuilder.java new file mode 100644 index 0000000..42862e1 --- /dev/null +++ b/src/main/java/me/bvn13/fsm/FsmBuilder.java @@ -0,0 +1,52 @@ +package me.bvn13.fsm; + +import java.util.function.Supplier; + +public class FsmBuilder { + + private final T fsm; + + FsmBuilder(Supplier supplier) { + fsm = supplier.get(); + } + + public StateBuilder from(String state) { + return new StateBuilder<>(this, state, true, false); + } + + public StateBuilder state(String state) { + return new StateBuilder<>(this, state, false, false); + } + + public StateBuilder finish(String state) { + return new StateBuilder<>(this, state, false, true); + } + + public ConditionBuilder withTransition() { + return new ConditionBuilder<>(this); + } + + public T create() { + fsm.init(); + return fsm; + } + + T getFsm() { + return fsm; + } + + @SuppressWarnings("unchecked") + void addState(State state, boolean isInitial) { + if (isInitial) { + fsm.initState(state); + } else { + fsm.addState(state); + } + } + + @SuppressWarnings("unchecked") + void addTransition(String from, String to, Condition condition) { + fsm.addTransition(from, to, condition); + } + +} diff --git a/src/main/java/me/bvn13/fsm/SimpleFsm.java b/src/main/java/me/bvn13/fsm/SimpleFsm.java new file mode 100644 index 0000000..300ece4 --- /dev/null +++ b/src/main/java/me/bvn13/fsm/SimpleFsm.java @@ -0,0 +1,9 @@ +package me.bvn13.fsm; + +/** + * Simple FSM + * @param the type of Events + */ +public class SimpleFsm extends Fsm { + +} diff --git a/src/main/java/ru/bvn13/fsm/State.java b/src/main/java/me/bvn13/fsm/State.java similarity index 69% rename from src/main/java/ru/bvn13/fsm/State.java rename to src/main/java/me/bvn13/fsm/State.java index 86ab1f5..a101c86 100644 --- a/src/main/java/ru/bvn13/fsm/State.java +++ b/src/main/java/me/bvn13/fsm/State.java @@ -1,18 +1,18 @@ -package ru.bvn13.fsm; +package me.bvn13.fsm; /** * Created by bvn13 on 28.12.2017. */ -public class State implements StateBehaviour { +public class State implements StateBehaviour { - private String name; + private final String name; private boolean finish; - private FSM fsm; - protected void setFSM(FSM fsm) { + private Fsm fsm; + protected void setFSM(Fsm fsm) { this.fsm = fsm; } - public FSM getFSM() { + public Fsm getFSM() { return this.fsm; } diff --git a/src/main/java/me/bvn13/fsm/StateBehaviour.java b/src/main/java/me/bvn13/fsm/StateBehaviour.java new file mode 100644 index 0000000..7e7f29c --- /dev/null +++ b/src/main/java/me/bvn13/fsm/StateBehaviour.java @@ -0,0 +1,20 @@ +package me.bvn13.fsm; + +/** + * State behavior + */ +public interface StateBehaviour { + + default void beforeEvent() { + + } + + default void afterEvent() { + + } + + default void process(E event) { + + } + +} diff --git a/src/main/java/me/bvn13/fsm/StateBuilder.java b/src/main/java/me/bvn13/fsm/StateBuilder.java new file mode 100644 index 0000000..5af28a8 --- /dev/null +++ b/src/main/java/me/bvn13/fsm/StateBuilder.java @@ -0,0 +1,59 @@ +package me.bvn13.fsm; + +import me.bvn13.fsm.dummy.DummyHandler; +import me.bvn13.fsm.dummy.DummyProcessor; + +public class StateBuilder { + + private final FsmBuilder fsmBuilder; + private final String name; + private final boolean isInitial; + private final boolean isFinishing; + private StateHandler beforeHandler = new DummyHandler<>(); + private StateHandler afterHandler = new DummyHandler<>(); + private StateProcessor processor = new DummyProcessor<>(); + + StateBuilder(FsmBuilder fsmBuilder, String name, boolean isInitial, boolean isFinishing) { + assert !(isInitial && isFinishing); + this.fsmBuilder = fsmBuilder; + this.name = name; + this.isInitial = isInitial; + this.isFinishing = isFinishing; + } + + public FsmBuilder end() { + fsmBuilder.addState(new State(name, isFinishing) { + @Override + public void beforeEvent() { + beforeHandler.handle(fsmBuilder.getFsm()); + } + + @Override + public void afterEvent() { + afterHandler.handle(fsmBuilder.getFsm()); + } + + @Override + public void process(E event) { + processor.process(fsmBuilder.getFsm(), event); + } + }, isInitial); + return fsmBuilder; + } + + public StateBuilder withBeforeHandler(StateHandler handler) { + this.beforeHandler = handler; + return this; + } + + public StateBuilder withAfterHandler(StateHandler handler) { + this.afterHandler = handler; + return this; + } + + public StateBuilder withProcessor(StateProcessor processor) { + this.processor = processor; + return this; + } + +} diff --git a/src/main/java/me/bvn13/fsm/StateHandler.java b/src/main/java/me/bvn13/fsm/StateHandler.java new file mode 100644 index 0000000..38c2d72 --- /dev/null +++ b/src/main/java/me/bvn13/fsm/StateHandler.java @@ -0,0 +1,12 @@ +package me.bvn13.fsm; + +/** + * State handler + * @param + */ +@FunctionalInterface +public interface StateHandler { + + void handle(T fms); + +} diff --git a/src/main/java/me/bvn13/fsm/StateProcessor.java b/src/main/java/me/bvn13/fsm/StateProcessor.java new file mode 100644 index 0000000..f9fd70e --- /dev/null +++ b/src/main/java/me/bvn13/fsm/StateProcessor.java @@ -0,0 +1,13 @@ +package me.bvn13.fsm; + +/** + * State processor + * @param the type of FSM inherited class + * @param the type of Events + */ +@FunctionalInterface +public interface StateProcessor { + + void process(T fms, E event); + +} diff --git a/src/main/java/me/bvn13/fsm/dummy/DummyHandler.java b/src/main/java/me/bvn13/fsm/dummy/DummyHandler.java new file mode 100644 index 0000000..9559db3 --- /dev/null +++ b/src/main/java/me/bvn13/fsm/dummy/DummyHandler.java @@ -0,0 +1,11 @@ +package me.bvn13.fsm.dummy; + +import me.bvn13.fsm.Fsm; +import me.bvn13.fsm.StateHandler; + +public class DummyHandler implements StateHandler { + @Override + public void handle(T fms) { + + } +} diff --git a/src/main/java/me/bvn13/fsm/dummy/DummyProcessor.java b/src/main/java/me/bvn13/fsm/dummy/DummyProcessor.java new file mode 100644 index 0000000..d308a73 --- /dev/null +++ b/src/main/java/me/bvn13/fsm/dummy/DummyProcessor.java @@ -0,0 +1,11 @@ +package me.bvn13.fsm.dummy; + +import me.bvn13.fsm.Fsm; +import me.bvn13.fsm.StateProcessor; + +public class DummyProcessor implements StateProcessor { + @Override + public void process(T fms, E event) { + + } +} diff --git a/src/main/java/ru/bvn13/fsm/Exceptions/AmbiguousTransitionException.java b/src/main/java/me/bvn13/fsm/exceptions/AmbiguousTransitionException.java similarity index 71% rename from src/main/java/ru/bvn13/fsm/Exceptions/AmbiguousTransitionException.java rename to src/main/java/me/bvn13/fsm/exceptions/AmbiguousTransitionException.java index ce2d4ac..ee6e210 100644 --- a/src/main/java/ru/bvn13/fsm/Exceptions/AmbiguousTransitionException.java +++ b/src/main/java/me/bvn13/fsm/exceptions/AmbiguousTransitionException.java @@ -1,11 +1,11 @@ -package ru.bvn13.fsm.Exceptions; +package me.bvn13.fsm.exceptions; import java.util.List; /** - * Created by bvn13 on 28.12.2017. + * is thrown if there are more than 1 appropriate transition from current state */ -public class AmbiguousTransitionException extends FSMException { +public class AmbiguousTransitionException extends FsmException { public AmbiguousTransitionException(String message) { super(message); } diff --git a/src/main/java/me/bvn13/fsm/exceptions/BrokenTransitionException.java b/src/main/java/me/bvn13/fsm/exceptions/BrokenTransitionException.java new file mode 100644 index 0000000..7669cf4 --- /dev/null +++ b/src/main/java/me/bvn13/fsm/exceptions/BrokenTransitionException.java @@ -0,0 +1,10 @@ +package me.bvn13.fsm.exceptions; + +/** + * is thrown if there are no further states from the current one + */ +public class BrokenTransitionException extends FsmException { + public BrokenTransitionException(String from) { + super("Broken transition from: "+from); + } +} diff --git a/src/main/java/me/bvn13/fsm/exceptions/ConditionAlreadyExistsException.java b/src/main/java/me/bvn13/fsm/exceptions/ConditionAlreadyExistsException.java new file mode 100644 index 0000000..0f7cfc5 --- /dev/null +++ b/src/main/java/me/bvn13/fsm/exceptions/ConditionAlreadyExistsException.java @@ -0,0 +1,10 @@ +package me.bvn13.fsm.exceptions; + +/** + * is thrown in case of adding a transition FROM->TO, but it is already defined + */ +public class ConditionAlreadyExistsException extends FsmException { + public ConditionAlreadyExistsException(String from, String to) { + super(String.format("Condition exists: %s -> %s", from, to)); + } +} diff --git a/src/main/java/ru/bvn13/fsm/Exceptions/FSMException.java b/src/main/java/me/bvn13/fsm/exceptions/FsmException.java similarity index 74% rename from src/main/java/ru/bvn13/fsm/Exceptions/FSMException.java rename to src/main/java/me/bvn13/fsm/exceptions/FsmException.java index 55c6cac..5205ae9 100644 --- a/src/main/java/ru/bvn13/fsm/Exceptions/FSMException.java +++ b/src/main/java/me/bvn13/fsm/exceptions/FsmException.java @@ -1,14 +1,14 @@ -package ru.bvn13.fsm.Exceptions; +package me.bvn13.fsm.exceptions; import java.io.PrintWriter; import java.io.StringWriter; /** - * Created by bvn13 on 28.12.2017. + * Parent FSM exception class */ -public class FSMException extends RuntimeException { +public class FsmException extends RuntimeException { protected String message; - public FSMException(String message) { + public FsmException(String message) { this.message = message; } protected String getStackTraceString() { diff --git a/src/main/java/me/bvn13/fsm/exceptions/NotInitializedException.java b/src/main/java/me/bvn13/fsm/exceptions/NotInitializedException.java new file mode 100644 index 0000000..a002848 --- /dev/null +++ b/src/main/java/me/bvn13/fsm/exceptions/NotInitializedException.java @@ -0,0 +1,13 @@ +package me.bvn13.fsm.exceptions; + +/** + * is thrown in case of using FSM before being initialized + */ +public class NotInitializedException extends FsmException { + public NotInitializedException(String message) { + super(message); + } + public NotInitializedException() { + super("FSM is not inited"); + } +} diff --git a/src/main/java/me/bvn13/fsm/exceptions/StateAlreadyExistsException.java b/src/main/java/me/bvn13/fsm/exceptions/StateAlreadyExistsException.java new file mode 100644 index 0000000..13dc360 --- /dev/null +++ b/src/main/java/me/bvn13/fsm/exceptions/StateAlreadyExistsException.java @@ -0,0 +1,10 @@ +package me.bvn13.fsm.exceptions; + +/** + * is thrown when trying to add the state which was already added before + */ +public class StateAlreadyExistsException extends FsmException { + public StateAlreadyExistsException(String stateName) { + super(String.format("State exist: %s", stateName)); + } +} diff --git a/src/main/java/me/bvn13/fsm/exceptions/TransitionMissedException.java b/src/main/java/me/bvn13/fsm/exceptions/TransitionMissedException.java new file mode 100644 index 0000000..9e81797 --- /dev/null +++ b/src/main/java/me/bvn13/fsm/exceptions/TransitionMissedException.java @@ -0,0 +1,10 @@ +package me.bvn13.fsm.exceptions; + +/** + * is thrown if there are no registered transitions from current state + */ +public class TransitionMissedException extends FsmException { + public TransitionMissedException(String from) { + super(String.format("Missed conditions from: %s", from)); + } +} diff --git a/src/main/java/ru/bvn13/fsm/Condition.java b/src/main/java/ru/bvn13/fsm/Condition.java deleted file mode 100644 index b1dbfef..0000000 --- a/src/main/java/ru/bvn13/fsm/Condition.java +++ /dev/null @@ -1,20 +0,0 @@ -package ru.bvn13.fsm; - -/** - * Created by bvn13 on 28.12.2017. - */ -public class Condition implements ConditionBehaviour { - - private FSM fsm; - protected void setFSM(FSM fsm) { - this.fsm = fsm; - } - public FSM getFSM() { - return this.fsm; - } - - @Override - public boolean check() { - return false; - } -} diff --git a/src/main/java/ru/bvn13/fsm/ConditionBehaviour.java b/src/main/java/ru/bvn13/fsm/ConditionBehaviour.java deleted file mode 100644 index 3345ec3..0000000 --- a/src/main/java/ru/bvn13/fsm/ConditionBehaviour.java +++ /dev/null @@ -1,8 +0,0 @@ -package ru.bvn13.fsm; - -/** - * Created by bvn13 on 28.12.2017. - */ -public interface ConditionBehaviour { - boolean check(); -} diff --git a/src/main/java/ru/bvn13/fsm/Exceptions/BrokenTransitionException.java b/src/main/java/ru/bvn13/fsm/Exceptions/BrokenTransitionException.java deleted file mode 100644 index 05fbc0d..0000000 --- a/src/main/java/ru/bvn13/fsm/Exceptions/BrokenTransitionException.java +++ /dev/null @@ -1,10 +0,0 @@ -package ru.bvn13.fsm.Exceptions; - -/** - * Created by bvn13 on 28.12.2017. - */ -public class BrokenTransitionException extends FSMException { - public BrokenTransitionException(String from) { - super("Broken transition from: "+from); - } -} diff --git a/src/main/java/ru/bvn13/fsm/Exceptions/ConditionExistsException.java b/src/main/java/ru/bvn13/fsm/Exceptions/ConditionExistsException.java deleted file mode 100644 index 3bff311..0000000 --- a/src/main/java/ru/bvn13/fsm/Exceptions/ConditionExistsException.java +++ /dev/null @@ -1,10 +0,0 @@ -package ru.bvn13.fsm.Exceptions; - -/** - * Created by bvn13 on 28.12.2017. - */ -public class ConditionExistsException extends FSMException { - public ConditionExistsException(String from, String to) { - super(String.format("Condition exists: %s -> %s", from, to)); - } -} diff --git a/src/main/java/ru/bvn13/fsm/Exceptions/NotInitedException.java b/src/main/java/ru/bvn13/fsm/Exceptions/NotInitedException.java deleted file mode 100644 index 22b42b9..0000000 --- a/src/main/java/ru/bvn13/fsm/Exceptions/NotInitedException.java +++ /dev/null @@ -1,13 +0,0 @@ -package ru.bvn13.fsm.Exceptions; - -/** - * Created by bvn13 on 28.12.2017. - */ -public class NotInitedException extends FSMException { - public NotInitedException(String message) { - super(message); - } - public NotInitedException() { - super("FSM is not inited"); - } -} diff --git a/src/main/java/ru/bvn13/fsm/Exceptions/StateExistsException.java b/src/main/java/ru/bvn13/fsm/Exceptions/StateExistsException.java deleted file mode 100644 index 7dd24c0..0000000 --- a/src/main/java/ru/bvn13/fsm/Exceptions/StateExistsException.java +++ /dev/null @@ -1,10 +0,0 @@ -package ru.bvn13.fsm.Exceptions; - -/** - * Created by bvn13 on 28.12.2017. - */ -public class StateExistsException extends FSMException { - public StateExistsException(String stateName) { - super(String.format("State exist: %s", stateName)); - } -} diff --git a/src/main/java/ru/bvn13/fsm/Exceptions/TransitionMissedException.java b/src/main/java/ru/bvn13/fsm/Exceptions/TransitionMissedException.java deleted file mode 100644 index 1c7d3b7..0000000 --- a/src/main/java/ru/bvn13/fsm/Exceptions/TransitionMissedException.java +++ /dev/null @@ -1,10 +0,0 @@ -package ru.bvn13.fsm.Exceptions; - -/** - * Created by bvn13 on 28.12.2017. - */ -public class TransitionMissedException extends FSMException { - public TransitionMissedException(String from) { - super(String.format("Missed conditions from: %s", from)); - } -} diff --git a/src/main/java/ru/bvn13/fsm/FSM.java b/src/main/java/ru/bvn13/fsm/FSM.java deleted file mode 100644 index 4195262..0000000 --- a/src/main/java/ru/bvn13/fsm/FSM.java +++ /dev/null @@ -1,142 +0,0 @@ -package ru.bvn13.fsm; - -import ru.bvn13.fsm.Exceptions.*; - -import java.util.ArrayList; -import java.util.HashMap; -import java.util.List; -import java.util.Map; - -/** - * Created by bvn13 on 28.12.2017. - */ -public class FSM { - - private boolean done = false; - private State initialState; - private State currentState; - private State previousState; - private final Map states; - private final Map> transitions; - - public FSM() { - this.states = new HashMap<>(); - this.transitions = new HashMap<>(); - } - - public void init() throws NotInitedException { - currentState = initialState; - if (currentState == null) { - throw new NotInitedException(); - } - done = false; - previousState = null; - currentState.beforeEvent(); - currentState.process(); - } - - public State getCurrentState() { - return currentState; - } - - public State getPreviousState() { - return previousState; - } - - public void next() throws FSMException { - if (done) { - return; - } - currentState.afterEvent(); - if (currentState.isFinish()) { - done = true; - return; - } - if (!transitions.containsKey(currentState.getName())) { - throw new TransitionMissedException(currentState.getName()); - } - Map conditions = transitions.get(currentState.getName()); - List nextStates = new ArrayList<>(); - for (String key : conditions.keySet()) { - if (conditions.get(key) == null) { - nextStates.add(key); - } else if(conditions.get(key).check()) { - nextStates.add(key); - } - } - if (nextStates.size() > 1) { - throw new AmbiguousTransitionException(currentState.getName(), nextStates); - } - if (nextStates.size() == 0) { - throw new BrokenTransitionException(currentState.getName()); - } - State nextState = states.get(nextStates.get(0)); - nextState(nextState); - } - - public void prev() throws FSMException { - if (done) { - return; - } - currentState.afterEvent(); - if (getPreviousState() == null) { - return; - } - nextState(getPreviousState()); - } - - public void initState(State state) throws FSMException { - state.setFSM(this); - addState(state); - initialState = state; - } - - public void addState(State state) throws FSMException { - checkStateExist(state.getName()); - state.setFSM(this); - this.states.put(state.getName(), state); - } - - public void addTransition(String fromState, String toState) throws FSMException { - storeTransition(fromState, toState, null); - } - - public void addTransition(String fromState, String toState, Condition condition) throws FSMException { - condition.setFSM(this); - storeTransition(fromState, toState, condition); - } - - public void addTransition(String fromState, State toState) throws FSMException { - addState(toState); - addTransition(fromState, toState.getName()); - } - - public void addTransition(String fromState, State toState, Condition condition) throws FSMException { - addState(toState); - addTransition(fromState, toState.getName(), condition); - } - - private void nextState(State state) { - state.beforeEvent(); - previousState = currentState; - currentState = state; - currentState.process(); - } - - private void checkStateExist(String name) throws StateExistsException { - if (this.states.containsKey(name)) { - throw new StateExistsException(name); - } - } - - private void storeTransition(String fromState, String toState, Condition condition) throws FSMException { - if (!transitions.containsKey(fromState)) { - transitions.put(fromState, new HashMap<>()); - } - if (transitions.get(fromState).containsKey(toState)) { - throw new ConditionExistsException(fromState, toState); - } - transitions.get(fromState).put(toState, condition); - } - -} diff --git a/src/main/java/ru/bvn13/fsm/StateBehaviour.java b/src/main/java/ru/bvn13/fsm/StateBehaviour.java deleted file mode 100644 index 2b9597f..0000000 --- a/src/main/java/ru/bvn13/fsm/StateBehaviour.java +++ /dev/null @@ -1,20 +0,0 @@ -package ru.bvn13.fsm; - -/** - * Created by bvn13 on 28.12.2017. - */ -public interface StateBehaviour { - - default void beforeEvent() { - - } - - default void afterEvent() { - - } - - default void process() { - - } - -} diff --git a/src/main/java/ru/bvn13/fsm/examples/DialogApplication.java b/src/main/java/ru/bvn13/fsm/examples/DialogApplication.java deleted file mode 100644 index 77109a3..0000000 --- a/src/main/java/ru/bvn13/fsm/examples/DialogApplication.java +++ /dev/null @@ -1,108 +0,0 @@ -package ru.bvn13.fsm.examples; - -import ru.bvn13.fsm.Condition; -import ru.bvn13.fsm.Exceptions.FSMException; -import ru.bvn13.fsm.Exceptions.NotInitedException; -import ru.bvn13.fsm.FSM; -import ru.bvn13.fsm.State; - -import java.io.BufferedReader; -import java.io.IOException; -import java.io.InputStreamReader; - -/** - * Created by bvn13 on 28.12.2017. - */ -public class DialogApplication { - - public static class DialogFSM extends FSM { - public String command; - private BufferedReader br = null; - - public void readCommand() { - System.out.print("Command: "); - br = new BufferedReader(new InputStreamReader(System.in)); - try { - command = br.readLine(); - } catch (IOException e) { - e.printStackTrace(); - System.exit(-1); - } - } - } - - public static void main(String argc[]) { - - DialogFSM fsm = new DialogFSM(); - - try { - fsm.initState(new State("greeting") { - @Override - public void beforeEvent() { - System.out.println("Welcome!"); - } - @Override - public void process() { - fsm.readCommand(); - try { - fsm.next(); - } catch (FSMException e) { - e.printStackTrace(); - System.exit(-1); - } - } - @Override - public void afterEvent() { - System.out.println("Your command: "+fsm.command); - } - }); - } catch (FSMException e) { - e.printStackTrace(); - } - - try { - fsm.addTransition("greeting", new State("hello", true) { - @Override - public void beforeEvent() { - System.out.println("Hello!"); - } - @Override - public void process() { - - } - @Override - public void afterEvent() { - System.out.println("DONE"); - } - }, new Condition() { - @Override - public boolean check() { - return fsm.command.equalsIgnoreCase("hello"); - } - }); - } catch (FSMException e) { - e.printStackTrace(); - } - - - try { - fsm.addTransition("greeting", "greeting", new Condition() { - @Override - public boolean check() { - return !fsm.command.equalsIgnoreCase("hello"); - } - }); - } catch (FSMException e) { - e.printStackTrace(); - } - - - try { - fsm.init(); - } catch (NotInitedException e) { - e.printStackTrace(); - } - - } - -} diff --git a/src/test/java/me/bvn13/fsm/tests/FsmTest.java b/src/test/java/me/bvn13/fsm/tests/FsmTest.java new file mode 100644 index 0000000..818ff16 --- /dev/null +++ b/src/test/java/me/bvn13/fsm/tests/FsmTest.java @@ -0,0 +1,123 @@ +package me.bvn13.fsm.tests; + +import me.bvn13.fsm.ConditionBuilder; +import me.bvn13.fsm.Fsm; +import me.bvn13.fsm.FsmBuilder; +import me.bvn13.fsm.SimpleFsm; +import me.bvn13.fsm.State; +import me.bvn13.fsm.StateBuilder; +import org.junit.Assert; +import org.junit.Test; + +import java.util.concurrent.atomic.AtomicBoolean; + +/** + * Created by bvn13 on 28.12.2017. + */ +public class FsmTest { + + public static class NamedFsm extends Fsm { + + public NamedFsm() { + super(); + } + + private String name; + + public NamedFsm setName(String name) { + this.name = name; + return this; + } + + public String toString() { + return this.name; + } + } + + + @Test + public void creatingFSM() { + + NamedFsm namedFsm = (new NamedFsm()).setName("TEST FSM"); + + AtomicBoolean initStatedProcessed = new AtomicBoolean(false); + AtomicBoolean firstStatedProcessed = new AtomicBoolean(false); + AtomicBoolean anotherStatedProcessed = new AtomicBoolean(false); + + namedFsm.initState(new State("init") { + @Override + public void process(String event) { + initStatedProcessed.set(true); + } + }); + + namedFsm.addTransition("init", new State("first", true) { + @Override + public void process(String event) { + firstStatedProcessed.set(true); + } + }); + + namedFsm.addTransition("init", new State("another", true) { + @Override + public void process(String event) { + anotherStatedProcessed.set(true); + } + }, (fsm, event) -> false); + + namedFsm.init(); + namedFsm.process(null); + + Assert.assertEquals("first", namedFsm.getCurrentState().getName()); + Assert.assertTrue(initStatedProcessed.get()); + Assert.assertTrue(firstStatedProcessed.get()); + Assert.assertFalse(anotherStatedProcessed.get()); + } + + @Test + public void newSyntax() { + + AtomicBoolean initBefore = new AtomicBoolean(false); + AtomicBoolean initAfter = new AtomicBoolean(false); + AtomicBoolean initProcess = new AtomicBoolean(false); + AtomicBoolean finishBefore = new AtomicBoolean(false); + AtomicBoolean finishAfter = new AtomicBoolean(false); + AtomicBoolean finishProcess = new AtomicBoolean(false); + + // @formatter:off + + SimpleFsm simpleFsm = SimpleFsm + ., String>withStates(SimpleFsm::new) + .from("init") + .withBeforeHandler(fsm -> initBefore.set(true)) + .withAfterHandler(fsm -> initAfter.set(true)) + .withProcessor((fsm, event) -> initProcess.set(true)) + .end() + .finish("finish") + .withBeforeHandler(fsm -> finishBefore.set(true)) + .withAfterHandler(fsm -> finishAfter.set(true)) + .withProcessor((fsm, event) -> finishProcess.set(true)) + .end() + .withTransition() + .from("init") + .to("finish") + .checking((fsm, event) -> true) + .end() + .create() + ; + + // @formatter:on + + simpleFsm.process(""); + + Assert.assertEquals("finish", simpleFsm.getCurrentState().getName()); + Assert.assertTrue(initBefore.get()); + Assert.assertTrue(initAfter.get()); + Assert.assertFalse(initProcess.get()); + Assert.assertTrue(finishBefore.get()); + Assert.assertFalse(finishAfter.get()); + Assert.assertTrue(finishProcess.get()); + + } + +} diff --git a/src/test/java/me/bvn13/fsm/tests/examples/DialogApplication.java b/src/test/java/me/bvn13/fsm/tests/examples/DialogApplication.java new file mode 100644 index 0000000..75b53e2 --- /dev/null +++ b/src/test/java/me/bvn13/fsm/tests/examples/DialogApplication.java @@ -0,0 +1,77 @@ +package me.bvn13.fsm.tests.examples; + +import me.bvn13.fsm.Fsm; +import me.bvn13.fsm.State; + +import java.io.BufferedReader; +import java.io.IOException; +import java.io.InputStreamReader; + +/** + * Created by bvn13 on 28.12.2017. + */ +public class DialogApplication { + + public static class DialogFSM extends Fsm { + public String command; + + public void readCommand() { + System.out.print("Command: "); + BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); + try { + command = br.readLine(); + } catch (IOException e) { + e.printStackTrace(); + System.exit(-1); + } + } + } + + public static void main(String[] argv) { + + DialogFSM fsm = new DialogFSM(); + + fsm.initState(new State("greeting") { + @Override + public void beforeEvent() { + System.out.println("Welcome!"); + } + + @Override + public void process(String event) { + fsm.readCommand(); + fsm.process(event); + } + + @Override + public void afterEvent() { + System.out.println("Your command: " + fsm.command); + } + }); + + fsm.addTransition("greeting", new State("hello", true) { + @Override + public void beforeEvent() { + System.out.println("Hello!"); + } + + @Override + public void process(String event) { + + } + + @Override + public void afterEvent() { + System.out.println("DONE"); + } + }, (fsm12, event) -> fsm12.command.equalsIgnoreCase("hello")); + + + fsm.addTransition("greeting", "greeting", (fsm1, event) -> !fsm1.command.equalsIgnoreCase("hello")); + + + fsm.init(); + + } + +} diff --git a/src/test/java/ru/bvn13/fsm/tests/FsmTest.java b/src/test/java/ru/bvn13/fsm/tests/FsmTest.java deleted file mode 100644 index 9032d4d..0000000 --- a/src/test/java/ru/bvn13/fsm/tests/FsmTest.java +++ /dev/null @@ -1,71 +0,0 @@ -package ru.bvn13.fsm.tests; - -import org.junit.Assert; -import org.junit.Test; -import ru.bvn13.fsm.Condition; -import ru.bvn13.fsm.FSM; -import ru.bvn13.fsm.State; - -/** - * Created by bvn13 on 28.12.2017. - */ -public class FsmTest { - - public static class NamedFSM extends FSM { - - public NamedFSM() { - super(); - } - - private String name; - - public NamedFSM setName(String name) { - this.name = name; - return this; - } - - public String toString() { - return this.name; - } - } - - - @Test - public void creatingFSM() { - - NamedFSM fsm = (new NamedFSM()).setName("TEST FSM"); - - fsm.initState(new State("init") { - @Override - public void process() { - System.out.println("" + fsm + " -> " + getName() + ": processed init"); - } - }); - - fsm.addTransition("init", new State("first", true) { - @Override - public void process() { - System.out.println("" + fsm + " -> " + getName() + ": processed first"); - } - }); - - fsm.addTransition("init", new State("another", true) { - @Override - public void process() { - System.out.println("" + fsm + " -> " + getName() + ": processed first"); - } - }, new Condition() { - @Override - public boolean check() { - return false; - } - }); - - fsm.init(); - fsm.next(); - - Assert.assertEquals("first", fsm.getCurrentState().getName()); - - } - -} From 0fb93a1ce0e0c79fac1922a728244390c65a9740 Mon Sep 17 00:00:00 2001 From: Vyacheslav Boyko Date: Thu, 7 Jul 2022 15:51:37 +0300 Subject: [PATCH 03/10] preparing deploy to maven central --- build.gradle | 36 ----- gradlew | 185 ---------------------- gradlew.bat | 89 ----------- pom.xml | 229 ++++++++++++++++++++-------- readme.md | 78 +++++++++- settings.gradle | 5 - src/main/java/me/bvn13/fsm/Fsm.java | 2 +- 7 files changed, 243 insertions(+), 381 deletions(-) delete mode 100644 build.gradle delete mode 100755 gradlew delete mode 100644 gradlew.bat delete mode 100644 settings.gradle diff --git a/build.gradle b/build.gradle deleted file mode 100644 index 1ef1003..0000000 --- a/build.gradle +++ /dev/null @@ -1,36 +0,0 @@ -/* - * This file was generated by the Gradle 'init' task. - */ - -plugins { - id 'java' - id 'maven-publish' -} - -repositories { - mavenLocal() - maven { - url = uri('https://repo.maven.apache.org/maven2/') - } -} - -dependencies { - testImplementation 'junit:junit:4.12' -} - -group = 'ru.bvn13.fsm' -version = '1.0' -description = 'FinalStateMachine' -java.sourceCompatibility = JavaVersion.VERSION_1_8 - -publishing { - publications { - maven(MavenPublication) { - from(components.java) - } - } -} - -tasks.withType(JavaCompile) { - options.encoding = 'UTF-8' -} diff --git a/gradlew b/gradlew deleted file mode 100755 index 4f906e0..0000000 --- a/gradlew +++ /dev/null @@ -1,185 +0,0 @@ -#!/usr/bin/env sh - -# -# Copyright 2015 the original author or authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -############################################################################## -## -## Gradle start up script for UN*X -## -############################################################################## - -# Attempt to set APP_HOME -# Resolve links: $0 may be a link -PRG="$0" -# Need this for relative symlinks. -while [ -h "$PRG" ] ; do - ls=`ls -ld "$PRG"` - link=`expr "$ls" : '.*-> \(.*\)$'` - if expr "$link" : '/.*' > /dev/null; then - PRG="$link" - else - PRG=`dirname "$PRG"`"/$link" - fi -done -SAVED="`pwd`" -cd "`dirname \"$PRG\"`/" >/dev/null -APP_HOME="`pwd -P`" -cd "$SAVED" >/dev/null - -APP_NAME="Gradle" -APP_BASE_NAME=`basename "$0"` - -# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. -DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' - -# Use the maximum available, or set MAX_FD != -1 to use that value. -MAX_FD="maximum" - -warn () { - echo "$*" -} - -die () { - echo - echo "$*" - echo - exit 1 -} - -# OS specific support (must be 'true' or 'false'). -cygwin=false -msys=false -darwin=false -nonstop=false -case "`uname`" in - CYGWIN* ) - cygwin=true - ;; - Darwin* ) - darwin=true - ;; - MINGW* ) - msys=true - ;; - NONSTOP* ) - nonstop=true - ;; -esac - -CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar - - -# Determine the Java command to use to start the JVM. -if [ -n "$JAVA_HOME" ] ; then - if [ -x "$JAVA_HOME/jre/sh/java" ] ; then - # IBM's JDK on AIX uses strange locations for the executables - JAVACMD="$JAVA_HOME/jre/sh/java" - else - JAVACMD="$JAVA_HOME/bin/java" - fi - if [ ! -x "$JAVACMD" ] ; then - die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME - -Please set the JAVA_HOME variable in your environment to match the -location of your Java installation." - fi -else - JAVACMD="java" - which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. - -Please set the JAVA_HOME variable in your environment to match the -location of your Java installation." -fi - -# Increase the maximum file descriptors if we can. -if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then - MAX_FD_LIMIT=`ulimit -H -n` - if [ $? -eq 0 ] ; then - if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then - MAX_FD="$MAX_FD_LIMIT" - fi - ulimit -n $MAX_FD - if [ $? -ne 0 ] ; then - warn "Could not set maximum file descriptor limit: $MAX_FD" - fi - else - warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" - fi -fi - -# For Darwin, add options to specify how the application appears in the dock -if $darwin; then - GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" -fi - -# For Cygwin or MSYS, switch paths to Windows format before running java -if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then - APP_HOME=`cygpath --path --mixed "$APP_HOME"` - CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` - - JAVACMD=`cygpath --unix "$JAVACMD"` - - # We build the pattern for arguments to be converted via cygpath - ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` - SEP="" - for dir in $ROOTDIRSRAW ; do - ROOTDIRS="$ROOTDIRS$SEP$dir" - SEP="|" - done - OURCYGPATTERN="(^($ROOTDIRS))" - # Add a user-defined pattern to the cygpath arguments - if [ "$GRADLE_CYGPATTERN" != "" ] ; then - OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" - fi - # Now convert the arguments - kludge to limit ourselves to /bin/sh - i=0 - for arg in "$@" ; do - CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` - CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option - - if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition - eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` - else - eval `echo args$i`="\"$arg\"" - fi - i=`expr $i + 1` - done - case $i in - 0) set -- ;; - 1) set -- "$args0" ;; - 2) set -- "$args0" "$args1" ;; - 3) set -- "$args0" "$args1" "$args2" ;; - 4) set -- "$args0" "$args1" "$args2" "$args3" ;; - 5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; - 6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; - 7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; - 8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; - 9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; - esac -fi - -# Escape application args -save () { - for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done - echo " " -} -APP_ARGS=`save "$@"` - -# Collect all arguments for the java command, following the shell quoting and substitution rules -eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" - -exec "$JAVACMD" "$@" diff --git a/gradlew.bat b/gradlew.bat deleted file mode 100644 index 107acd3..0000000 --- a/gradlew.bat +++ /dev/null @@ -1,89 +0,0 @@ -@rem -@rem Copyright 2015 the original author or authors. -@rem -@rem Licensed under the Apache License, Version 2.0 (the "License"); -@rem you may not use this file except in compliance with the License. -@rem You may obtain a copy of the License at -@rem -@rem https://www.apache.org/licenses/LICENSE-2.0 -@rem -@rem Unless required by applicable law or agreed to in writing, software -@rem distributed under the License is distributed on an "AS IS" BASIS, -@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -@rem See the License for the specific language governing permissions and -@rem limitations under the License. -@rem - -@if "%DEBUG%" == "" @echo off -@rem ########################################################################## -@rem -@rem Gradle startup script for Windows -@rem -@rem ########################################################################## - -@rem Set local scope for the variables with windows NT shell -if "%OS%"=="Windows_NT" setlocal - -set DIRNAME=%~dp0 -if "%DIRNAME%" == "" set DIRNAME=. -set APP_BASE_NAME=%~n0 -set APP_HOME=%DIRNAME% - -@rem Resolve any "." and ".." in APP_HOME to make it shorter. -for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi - -@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. -set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" - -@rem Find java.exe -if defined JAVA_HOME goto findJavaFromJavaHome - -set JAVA_EXE=java.exe -%JAVA_EXE% -version >NUL 2>&1 -if "%ERRORLEVEL%" == "0" goto execute - -echo. -echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. -echo. -echo Please set the JAVA_HOME variable in your environment to match the -echo location of your Java installation. - -goto fail - -:findJavaFromJavaHome -set JAVA_HOME=%JAVA_HOME:"=% -set JAVA_EXE=%JAVA_HOME%/bin/java.exe - -if exist "%JAVA_EXE%" goto execute - -echo. -echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% -echo. -echo Please set the JAVA_HOME variable in your environment to match the -echo location of your Java installation. - -goto fail - -:execute -@rem Setup the command line - -set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar - - -@rem Execute Gradle -"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* - -:end -@rem End local scope for the variables with windows NT shell -if "%ERRORLEVEL%"=="0" goto mainEnd - -:fail -rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of -rem the _cmd.exe /c_ return code! -if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 -exit /b 1 - -:mainEnd -if "%OS%"=="Windows_NT" endlocal - -:omega diff --git a/pom.xml b/pom.xml index 1d30cfc..e9edf24 100644 --- a/pom.xml +++ b/pom.xml @@ -5,43 +5,42 @@ 4.0.0 - ru.bvn13 + me.bvn13 fsm - 1.0 + 2.0-SNAPSHOT jar - FinalStateMachine - Final state machine + Final State Machine + Final state machine: String-stated, custom event handling https://github.com/bvn13/FinalStateMachine Apache License, Version 2.0 http://www.apache.org/licenses/LICENSE-2.0.txt - repo - - - owner - Vyacheslav Boyko - mail4bvn@gmail.com - UTC+3 - - - - 1.8 - UTF-8 - UTF-8 + 1.8 1.8 - github - 0.12 - https://github.com/bvn13/FinalStateMachine + + UTF-8 + UTF-8 + + + https://s01.oss.sonatype.org + + + https://s01.oss.sonatype.org + 2.8.2 + 3.0.0-M7 + 1.6.13 + 1.6 + 1.18.0 @@ -53,19 +52,6 @@ - - junit @@ -78,37 +64,152 @@ FinalStateMachine - - - maven-deploy-plugin - 2.8.2 - - internal.repo::default::file://${project.build.directory}/mvn-repo - - - - com.github.github - site-maven-plugin - ${github.maven-plugin} - - Maven artifacts for ${project.version} - true - ${project.build.directory}/mvn-repo - refs/heads/mvn-repo - **/* - FinalStateMachine - bvn13 - - - - - site - - deploy - - - - + + + + maven-source-plugin + + + attach-sources + + jar-no-fork + + + + + + maven-surefire-plugin + ${maven-surefire-plugin.version} + + + com.amashchenko.maven.plugin + gitflow-maven-plugin + ${gitflow-maven-plugin.version} + + false + + develop + + true + 2 + + + + + + + bvn13 + Vyacheslav Boyko + dev@bvn13.me + + Developer + + + + + + scm:git:git://github.com/bvn13/FinalStateMachine.git + scm:git:ssh://git@github.com:bvn13/FinalStateMachine.git + HEAD + https://github.com/bvn13/FinalStateMachinek.git + + + + + release + + + + org.apache.maven.plugins + maven-source-plugin + + + attach-sources + verify + + jar-no-fork + + + + + + org.apache.maven.plugins + maven-javadoc-plugin + + + attach-javadocs + + jar + + + + + + org.apache.maven.plugins + maven-deploy-plugin + ${maven-deploy-plugin.version} + + true + + + + org.sonatype.plugins + nexus-staging-maven-plugin + ${nexus-staging-maven-plugin.version} + true + + + default-deploy + deploy + + deploy + + + + + ossrh + ${nexus.url} + true + + + + org.apache.maven.plugins + maven-gpg-plugin + ${maven-gpg-plugin.version} + + + sign-artifacts + verify + + sign + + + + + + + + + + ossrh + ${nexus.url}/content/repositories/snapshots + + + ossrh + ${nexus.url}/service/local/staging/deploy/maven2/ + + + + + + jcenter + JCenter + https://jcenter.bintray.com/ + + + + + \ No newline at end of file diff --git a/readme.md b/readme.md index 9e075dc..7942ea7 100644 --- a/readme.md +++ b/readme.md @@ -1,7 +1,83 @@ # Simple Final State Machine -see an example here: https://github.com/bvn13/JIrcBot/blob/master/src/main/java/ru/bvn13/jircbot/listeners/calculator/CalculatorDialog.java +Each instance of State Machine must be prepared with: +1. Initial state +2. Finish state - may be not several states +3. Intermediate states - optionally +4. All transitions needed + +Each State may be specified with handlers: + +1. Before handler - is called right before FSM changes INTO this state +2. After handler - is called right before FSM changes FROM this state to another +3. Processor - the method to process events + +Transition is the Rule providing FSM the possibility to change between states. + +Each transition must be determined in terms of: + +1. From State - mandatory +2. To State - mandatory +3. Condition - optionally. If specified, the FSM will check the condition in order to check the possibility +to change from FROM State into TO State + +## Example + +Simple way to use it - to construct an inherited class specified with the type of events to be processed + during transitions. + +```java + SimpleFsm simpleFsm = SimpleFsm + ., String>withStates(SimpleFsm::new) + .from("init") + .withBeforeHandler(fsm -> initBefore.set(true)) + .withAfterHandler(fsm -> initAfter.set(true)) + .withProcessor((fsm, event) -> initProcess.set(true)) + .end() + .finish("finish") + .withBeforeHandler(fsm -> finishBefore.set(true)) + .withAfterHandler(fsm -> finishAfter.set(true)) + .withProcessor((fsm, event) -> finishProcess.set(true)) + .end() + .withTransition() + .from("init") + .to("finish") + .checking((fsm, event) -> true) + .end() + .create(); + } +``` + +## Releasing + +Creating a new release involves the following steps: + +1. `./mvnw gitflow:release-start gitflow:release-finish` +2. `git push origin master` +3. `git push --tags` +4. `git push origin develop` + +In order to deploy the release to Maven Central, you need to create an account at https://issues.sonatype.org and +configure your account in `~/.m2/settings.xml`: + +```xml + + + + ossrh + your-jira-id + your-jira-pwd + + + +``` + +The account also needs access to the project on Maven Central. This can be requested by another project member. + +Then check out the release you want to deploy (`git checkout x.y.z`) and run `./mvnw deploy -Prelease`. + +## Author (c) bvn13 \ No newline at end of file diff --git a/settings.gradle b/settings.gradle deleted file mode 100644 index 82fbccc..0000000 --- a/settings.gradle +++ /dev/null @@ -1,5 +0,0 @@ -/* - * This file was generated by the Gradle 'init' task. - */ - -rootProject.name = 'fsm' diff --git a/src/main/java/me/bvn13/fsm/Fsm.java b/src/main/java/me/bvn13/fsm/Fsm.java index 5d66b3f..276f490 100644 --- a/src/main/java/me/bvn13/fsm/Fsm.java +++ b/src/main/java/me/bvn13/fsm/Fsm.java @@ -38,7 +38,7 @@ import java.util.function.Supplier; *

* *

- * Transition is the Rule provides FSM the possibility to change between states. + * Transition is the Rule providing FSM the possibility to change between states. * * Each transition must be determined in terms of: *

    From f49fa7297b97e791019fefead7b14f501064668b Mon Sep 17 00:00:00 2001 From: Vyacheslav Boyko Date: Thu, 7 Jul 2022 15:57:40 +0300 Subject: [PATCH 04/10] fix --- readme.md | 1 - src/main/java/me/bvn13/fsm/Fsm.java | 1 - 2 files changed, 2 deletions(-) diff --git a/readme.md b/readme.md index 7942ea7..a44b749 100644 --- a/readme.md +++ b/readme.md @@ -47,7 +47,6 @@ Simple way to use it - to construct an inherited class specified with the type o .checking((fsm, event) -> true) .end() .create(); - } ``` ## Releasing diff --git a/src/main/java/me/bvn13/fsm/Fsm.java b/src/main/java/me/bvn13/fsm/Fsm.java index 276f490..da3b59b 100644 --- a/src/main/java/me/bvn13/fsm/Fsm.java +++ b/src/main/java/me/bvn13/fsm/Fsm.java @@ -72,7 +72,6 @@ import java.util.function.Supplier; * .checking((fsm, event) -> true) * .end() * .create(); - * } * * * {@link SimpleFsm} From a124058a562faaaf38241ea57619c4d83f0dab38 Mon Sep 17 00:00:00 2001 From: Vyacheslav Boyko Date: Thu, 7 Jul 2022 16:07:54 +0300 Subject: [PATCH 05/10] better DSL --- readme.md | 5 +++-- src/main/java/me/bvn13/fsm/Fsm.java | 9 +++++---- .../me/bvn13/fsm/FsmBuilderInitializer.java | 17 +++++++++++++++++ src/test/java/me/bvn13/fsm/tests/FsmTest.java | 8 +++----- 4 files changed, 28 insertions(+), 11 deletions(-) create mode 100644 src/main/java/me/bvn13/fsm/FsmBuilderInitializer.java diff --git a/readme.md b/readme.md index a44b749..749fdfb 100644 --- a/readme.md +++ b/readme.md @@ -29,8 +29,9 @@ Simple way to use it - to construct an inherited class specified with the type o during transitions. ```java - SimpleFsm simpleFsm = SimpleFsm - ., String>withStates(SimpleFsm::new) + SimpleFsm simpleFsm = Fsm + ., String>from(SimpleFsm::new) + .withStates() .from("init") .withBeforeHandler(fsm -> initBefore.set(true)) .withAfterHandler(fsm -> initAfter.set(true)) diff --git a/src/main/java/me/bvn13/fsm/Fsm.java b/src/main/java/me/bvn13/fsm/Fsm.java index da3b59b..77d9e44 100644 --- a/src/main/java/me/bvn13/fsm/Fsm.java +++ b/src/main/java/me/bvn13/fsm/Fsm.java @@ -54,8 +54,9 @@ import java.util.function.Supplier; * during transitions. * 
      *  {@code
- *  SimpleFsm simpleFsm = SimpleFsm
- *    ., String>withStates(SimpleFsm::new)
+ *  SimpleFsm simpleFsm = Fsm
+ *    ., String>from(SimpleFsm::new)
+ *    .withStates()
  *      .from("init")
  *      .withBeforeHandler(fsm -> initBefore.set(true))
  *      .withAfterHandler(fsm -> initAfter.set(true))
@@ -94,8 +95,8 @@ public class Fsm {
      * @param  the class type of Events to be processed
      */
     @SuppressWarnings("unchecked")
-    public static  FsmBuilder withStates(Supplier supplier) {
-        return new FsmBuilder<>(supplier);
+    public static  FsmBuilderInitializer from(Supplier supplier) {
+        return new FsmBuilderInitializer<>(supplier);
     }
 
     /**
diff --git a/src/main/java/me/bvn13/fsm/FsmBuilderInitializer.java b/src/main/java/me/bvn13/fsm/FsmBuilderInitializer.java
new file mode 100644
index 0000000..d2f87cf
--- /dev/null
+++ b/src/main/java/me/bvn13/fsm/FsmBuilderInitializer.java
@@ -0,0 +1,17 @@
+package me.bvn13.fsm;
+
+import java.util.function.Supplier;
+
+public class FsmBuilderInitializer {
+
+    final Supplier supplier;
+
+    FsmBuilderInitializer(Supplier supplier) {
+        this.supplier = supplier;
+    }
+
+    public FsmBuilder withStates() {
+        return new FsmBuilder<>(supplier);
+    }
+
+}
diff --git a/src/test/java/me/bvn13/fsm/tests/FsmTest.java b/src/test/java/me/bvn13/fsm/tests/FsmTest.java
index 818ff16..d0dc9f4 100644
--- a/src/test/java/me/bvn13/fsm/tests/FsmTest.java
+++ b/src/test/java/me/bvn13/fsm/tests/FsmTest.java
@@ -1,11 +1,8 @@
 package me.bvn13.fsm.tests;
 
-import me.bvn13.fsm.ConditionBuilder;
 import me.bvn13.fsm.Fsm;
-import me.bvn13.fsm.FsmBuilder;
 import me.bvn13.fsm.SimpleFsm;
 import me.bvn13.fsm.State;
-import me.bvn13.fsm.StateBuilder;
 import org.junit.Assert;
 import org.junit.Test;
 
@@ -86,8 +83,9 @@ public class FsmTest {
 
         // @formatter:off
 
-        SimpleFsm simpleFsm = SimpleFsm
-                ., String>withStates(SimpleFsm::new)
+        SimpleFsm simpleFsm = Fsm
+                ., String>from(SimpleFsm::new)
+                .withStates()
                 .from("init")
                     .withBeforeHandler(fsm -> initBefore.set(true))
                     .withAfterHandler(fsm -> initAfter.set(true))

From 051ffd725e1c3ecb7ac3ed8efaaf621d57ed113b Mon Sep 17 00:00:00 2001
From: Vyacheslav Boyko 
Date: Thu, 7 Jul 2022 16:25:43 +0300
Subject: [PATCH 06/10] maven setup

---
 mvnw     | 310 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 mvnw.cmd | 182 ++++++++++++++++++++++++++++++++
 2 files changed, 492 insertions(+)
 create mode 100755 mvnw
 create mode 100644 mvnw.cmd

diff --git a/mvnw b/mvnw
new file mode 100755
index 0000000..d2f0ea3
--- /dev/null
+++ b/mvnw
@@ -0,0 +1,310 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Maven2 Start Up Batch script
+#
+# Required ENV vars:
+# ------------------
+#   JAVA_HOME - location of a JDK home dir
+#
+# Optional ENV vars
+# -----------------
+#   M2_HOME - location of maven2's installed home dir
+#   MAVEN_OPTS - parameters passed to the Java VM when running Maven
+#     e.g. to debug Maven itself, use
+#       set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+#   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+# ----------------------------------------------------------------------------
+
+if [ -z "$MAVEN_SKIP_RC" ] ; then
+
+  if [ -f /etc/mavenrc ] ; then
+    . /etc/mavenrc
+  fi
+
+  if [ -f "$HOME/.mavenrc" ] ; then
+    . "$HOME/.mavenrc"
+  fi
+
+fi
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+mingw=false
+case "`uname`" in
+  CYGWIN*) cygwin=true ;;
+  MINGW*) mingw=true;;
+  Darwin*) darwin=true
+    # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+    # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+    if [ -z "$JAVA_HOME" ]; then
+      if [ -x "/usr/libexec/java_home" ]; then
+        export JAVA_HOME="`/usr/libexec/java_home`"
+      else
+        export JAVA_HOME="/Library/Java/Home"
+      fi
+    fi
+    ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=`java-config --jre-home`
+  fi
+fi
+
+if [ -z "$M2_HOME" ] ; then
+  ## resolve links - $0 may be a link to maven's home
+  PRG="$0"
+
+  # need this for relative symlinks
+  while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+      PRG="$link"
+    else
+      PRG="`dirname "$PRG"`/$link"
+    fi
+  done
+
+  saveddir=`pwd`
+
+  M2_HOME=`dirname "$PRG"`/..
+
+  # make it fully qualified
+  M2_HOME=`cd "$M2_HOME" && pwd`
+
+  cd "$saveddir"
+  # echo Using m2 at $M2_HOME
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --unix "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# For Mingw, ensure paths are in UNIX format before anything is touched
+if $mingw ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME="`(cd "$M2_HOME"; pwd)`"
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
+fi
+
+if [ -z "$JAVA_HOME" ]; then
+  javaExecutable="`which javac`"
+  if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+    # readlink(1) is not available as standard on Solaris 10.
+    readLink=`which readlink`
+    if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
+      if $darwin ; then
+        javaHome="`dirname \"$javaExecutable\"`"
+        javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+      else
+        javaExecutable="`readlink -f \"$javaExecutable\"`"
+      fi
+      javaHome="`dirname \"$javaExecutable\"`"
+      javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+      JAVA_HOME="$javaHome"
+      export JAVA_HOME
+    fi
+  fi
+fi
+
+if [ -z "$JAVACMD" ] ; then
+  if [ -n "$JAVA_HOME"  ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+    fi
+  else
+    JAVACMD="`which java`"
+  fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+  echo "Error: JAVA_HOME is not defined correctly." >&2
+  echo "  We cannot execute $JAVACMD" >&2
+  exit 1
+fi
+
+if [ -z "$JAVA_HOME" ] ; then
+  echo "Warning: JAVA_HOME environment variable is not set."
+fi
+
+CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
+
+# traverses directory structure from process work directory to filesystem root
+# first directory with .mvn subdirectory is considered project base directory
+find_maven_basedir() {
+
+  if [ -z "$1" ]
+  then
+    echo "Path not specified to find_maven_basedir"
+    return 1
+  fi
+
+  basedir="$1"
+  wdir="$1"
+  while [ "$wdir" != '/' ] ; do
+    if [ -d "$wdir"/.mvn ] ; then
+      basedir=$wdir
+      break
+    fi
+    # workaround for JBEAP-8937 (on Solaris 10/Sparc)
+    if [ -d "${wdir}" ]; then
+      wdir=`cd "$wdir/.."; pwd`
+    fi
+    # end of workaround
+  done
+  echo "${basedir}"
+}
+
+# concatenates all lines of a file
+concat_lines() {
+  if [ -f "$1" ]; then
+    echo "$(tr -s '\n' ' ' < "$1")"
+  fi
+}
+
+BASE_DIR=`find_maven_basedir "$(pwd)"`
+if [ -z "$BASE_DIR" ]; then
+  exit 1;
+fi
+
+##########################################################################################
+# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+# This allows using the maven wrapper in projects that prohibit checking in binary data.
+##########################################################################################
+if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Found .mvn/wrapper/maven-wrapper.jar"
+    fi
+else
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
+    fi
+    if [ -n "$MVNW_REPOURL" ]; then
+      jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.5/maven-wrapper-0.5.5.jar"
+    else
+      jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.5/maven-wrapper-0.5.5.jar"
+    fi
+    while IFS="=" read key value; do
+      case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
+      esac
+    done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Downloading from: $jarUrl"
+    fi
+    wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
+    if $cygwin; then
+      wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
+    fi
+
+    if command -v wget > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found wget ... using wget"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            wget "$jarUrl" -O "$wrapperJarPath"
+        else
+            wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath"
+        fi
+    elif command -v curl > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found curl ... using curl"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            curl -o "$wrapperJarPath" "$jarUrl" -f
+        else
+            curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
+        fi
+        
+    else
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Falling back to using Java to download"
+        fi
+        javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
+        # For Cygwin, switch paths to Windows format before running javac
+        if $cygwin; then
+          javaClass=`cygpath --path --windows "$javaClass"`
+        fi
+        if [ -e "$javaClass" ]; then
+            if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Compiling MavenWrapperDownloader.java ..."
+                fi
+                # Compiling the Java class
+                ("$JAVA_HOME/bin/javac" "$javaClass")
+            fi
+            if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                # Running the downloader
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Running MavenWrapperDownloader.java ..."
+                fi
+                ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
+            fi
+        fi
+    fi
+fi
+##########################################################################################
+# End of extension
+##########################################################################################
+
+export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
+if [ "$MVNW_VERBOSE" = true ]; then
+  echo $MAVEN_PROJECTBASEDIR
+fi
+MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --path --windows "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+  [ -n "$MAVEN_PROJECTBASEDIR" ] &&
+    MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
+fi
+
+# Provide a "standardized" way to retrieve the CLI args that will
+# work with both Windows and non-Windows executions.
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
+export MAVEN_CMD_LINE_ARGS
+
+WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+exec "$JAVACMD" \
+  $MAVEN_OPTS \
+  -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+  "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"
diff --git a/mvnw.cmd b/mvnw.cmd
new file mode 100644
index 0000000..b26ab24
--- /dev/null
+++ b/mvnw.cmd
@@ -0,0 +1,182 @@
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Maven2 Start Up Batch script
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM M2_HOME - location of maven2's installed home dir
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM     e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM set title of command window
+title %0
+@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
+if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
+:skipRcPre
+
+@setlocal
+
+set ERROR_CODE=0
+
+@REM To isolate internal variables from possible post scripts, we use another setlocal
+@setlocal
+
+@REM ==== START VALIDATION ====
+if not "%JAVA_HOME%" == "" goto OkJHome
+
+echo.
+echo Error: JAVA_HOME not found in your environment. >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+:OkJHome
+if exist "%JAVA_HOME%\bin\java.exe" goto init
+
+echo.
+echo Error: JAVA_HOME is set to an invalid directory. >&2
+echo JAVA_HOME = "%JAVA_HOME%" >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+@REM ==== END VALIDATION ====
+
+:init
+
+@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
+@REM Fallback to current working directory if not found.
+
+set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
+IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
+
+set EXEC_DIR=%CD%
+set WDIR=%EXEC_DIR%
+:findBaseDir
+IF EXIST "%WDIR%"\.mvn goto baseDirFound
+cd ..
+IF "%WDIR%"=="%CD%" goto baseDirNotFound
+set WDIR=%CD%
+goto findBaseDir
+
+:baseDirFound
+set MAVEN_PROJECTBASEDIR=%WDIR%
+cd "%EXEC_DIR%"
+goto endDetectBaseDir
+
+:baseDirNotFound
+set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
+cd "%EXEC_DIR%"
+
+:endDetectBaseDir
+
+IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
+
+@setlocal EnableExtensions EnableDelayedExpansion
+for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
+@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
+
+:endReadAdditionalConfig
+
+SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
+set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
+set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.5/maven-wrapper-0.5.5.jar"
+
+FOR /F "tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+    IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
+)
+
+@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
+if exist %WRAPPER_JAR% (
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Found %WRAPPER_JAR%
+    )
+) else (
+    if not "%MVNW_REPOURL%" == "" (
+        SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.5/maven-wrapper-0.5.5.jar"
+    )
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Couldn't find %WRAPPER_JAR%, downloading it ...
+        echo Downloading from: %DOWNLOAD_URL%
+    )
+
+    powershell -Command "&{"^
+		"$webclient = new-object System.Net.WebClient;"^
+		"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
+		"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
+		"}"^
+		"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
+		"}"
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Finished downloading %WRAPPER_JAR%
+    )
+)
+@REM End of extension
+
+@REM Provide a "standardized" way to retrieve the CLI args that will
+@REM work with both Windows and non-Windows executions.
+set MAVEN_CMD_LINE_ARGS=%*
+
+%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
+if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
+:skipRcPost
+
+@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
+if "%MAVEN_BATCH_PAUSE%" == "on" pause
+
+if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
+
+exit /B %ERROR_CODE%

From d2fccb94268363c8045d8ab2a009890705568649 Mon Sep 17 00:00:00 2001
From: Vyacheslav Boyko 
Date: Thu, 7 Jul 2022 16:26:31 +0300
Subject: [PATCH 07/10] maven setup

---
 .mvn/wrapper/MavenWrapperDownloader.java | 117 +++++++++++++++++++++++
 .mvn/wrapper/maven-wrapper.jar           | Bin 0 -> 50710 bytes
 .mvn/wrapper/maven-wrapper.properties    |   2 +
 3 files changed, 119 insertions(+)
 create mode 100644 .mvn/wrapper/MavenWrapperDownloader.java
 create mode 100644 .mvn/wrapper/maven-wrapper.jar
 create mode 100644 .mvn/wrapper/maven-wrapper.properties

diff --git a/.mvn/wrapper/MavenWrapperDownloader.java b/.mvn/wrapper/MavenWrapperDownloader.java
new file mode 100644
index 0000000..c32394f
--- /dev/null
+++ b/.mvn/wrapper/MavenWrapperDownloader.java
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2007-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import java.net.*;
+import java.io.*;
+import java.nio.channels.*;
+import java.util.Properties;
+
+public class MavenWrapperDownloader {
+
+    private static final String WRAPPER_VERSION = "0.5.5";
+    /**
+     * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided.
+     */
+    private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/"
+        + WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar";
+
+    /**
+     * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to
+     * use instead of the default one.
+     */
+    private static final String MAVEN_WRAPPER_PROPERTIES_PATH =
+            ".mvn/wrapper/maven-wrapper.properties";
+
+    /**
+     * Path where the maven-wrapper.jar will be saved to.
+     */
+    private static final String MAVEN_WRAPPER_JAR_PATH =
+            ".mvn/wrapper/maven-wrapper.jar";
+
+    /**
+     * Name of the property which should be used to override the default download url for the wrapper.
+     */
+    private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl";
+
+    public static void main(String args[]) {
+        System.out.println("- Downloader started");
+        File baseDirectory = new File(args[0]);
+        System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
+
+        // If the maven-wrapper.properties exists, read it and check if it contains a custom
+        // wrapperUrl parameter.
+        File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
+        String url = DEFAULT_DOWNLOAD_URL;
+        if(mavenWrapperPropertyFile.exists()) {
+            FileInputStream mavenWrapperPropertyFileInputStream = null;
+            try {
+                mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile);
+                Properties mavenWrapperProperties = new Properties();
+                mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream);
+                url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url);
+            } catch (IOException e) {
+                System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'");
+            } finally {
+                try {
+                    if(mavenWrapperPropertyFileInputStream != null) {
+                        mavenWrapperPropertyFileInputStream.close();
+                    }
+                } catch (IOException e) {
+                    // Ignore ...
+                }
+            }
+        }
+        System.out.println("- Downloading from: " + url);
+
+        File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH);
+        if(!outputFile.getParentFile().exists()) {
+            if(!outputFile.getParentFile().mkdirs()) {
+                System.out.println(
+                        "- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'");
+            }
+        }
+        System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
+        try {
+            downloadFileFromURL(url, outputFile);
+            System.out.println("Done");
+            System.exit(0);
+        } catch (Throwable e) {
+            System.out.println("- Error downloading");
+            e.printStackTrace();
+            System.exit(1);
+        }
+    }
+
+    private static void downloadFileFromURL(String urlString, File destination) throws Exception {
+        if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) {
+            String username = System.getenv("MVNW_USERNAME");
+            char[] password = System.getenv("MVNW_PASSWORD").toCharArray();
+            Authenticator.setDefault(new Authenticator() {
+                @Override
+                protected PasswordAuthentication getPasswordAuthentication() {
+                    return new PasswordAuthentication(username, password);
+                }
+            });
+        }
+        URL website = new URL(urlString);
+        ReadableByteChannel rbc;
+        rbc = Channels.newChannel(website.openStream());
+        FileOutputStream fos = new FileOutputStream(destination);
+        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
+        fos.close();
+        rbc.close();
+    }
+
+}
diff --git a/.mvn/wrapper/maven-wrapper.jar b/.mvn/wrapper/maven-wrapper.jar
new file mode 100644
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JS$+5G{{hr`vzY(@

literal 0
HcmV?d00001

diff --git a/.mvn/wrapper/maven-wrapper.properties b/.mvn/wrapper/maven-wrapper.properties
new file mode 100644
index 0000000..fa87ad7
--- /dev/null
+++ b/.mvn/wrapper/maven-wrapper.properties
@@ -0,0 +1,2 @@
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.1/apache-maven-3.6.1-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.5/maven-wrapper-0.5.5.jar

From e5b301511535b2a4614199e3f615a6393ad4c00f Mon Sep 17 00:00:00 2001
From: Vyacheslav Boyko 
Date: Thu, 7 Jul 2022 23:06:38 +0300
Subject: [PATCH 08/10] fixes

---
 src/main/java/me/bvn13/fsm/Fsm.java           | 82 ++++++++++---------
 src/main/java/me/bvn13/fsm/State.java         |  4 +
 src/test/java/me/bvn13/fsm/tests/FsmTest.java |  6 +-
 3 files changed, 50 insertions(+), 42 deletions(-)

diff --git a/src/main/java/me/bvn13/fsm/Fsm.java b/src/main/java/me/bvn13/fsm/Fsm.java
index 77d9e44..5c97aef 100644
--- a/src/main/java/me/bvn13/fsm/Fsm.java
+++ b/src/main/java/me/bvn13/fsm/Fsm.java
@@ -113,6 +113,26 @@ public class Fsm {
         currentState.beforeEvent();
     }
 
+    /**
+     * Main method to handle every event
+     *
+     * @param event event
+     * @throws FsmException
+     */
+    @SuppressWarnings("unchecked")
+    public void process(E event) throws FsmException {
+        if (done) {
+            return;
+        }
+        currentState.process(event);
+        currentState.afterEvent();
+        if (currentState.isFinish()) {
+            done = true;
+            return;
+        }
+        switchToNextState(event);
+    }
+
     /**
      * Returns current state
      *
@@ -131,44 +151,6 @@ public class Fsm {
         return previousState;
     }
 
-    /**
-     * Main method to handle every event
-     *
-     * @param event event
-     * @throws FsmException
-     */
-    @SuppressWarnings("unchecked")
-    public void process(E event) throws FsmException {
-        if (done) {
-            return;
-        }
-        currentState.afterEvent();
-        if (currentState.isFinish()) {
-            done = true;
-            return;
-        }
-        if (!transitions.containsKey(currentState.getName())) {
-            throw new TransitionMissedException(currentState.getName());
-        }
-        Map> conditions = transitions.get(currentState.getName());
-        List nextStates = new ArrayList<>();
-        for (String key : conditions.keySet()) {
-            if (conditions.get(key) == null) {
-                nextStates.add(key);
-            } else if(conditions.get(key).check((T) this, event)) {
-                nextStates.add(key);
-            }
-        }
-        if (nextStates.size() > 1) {
-            throw new AmbiguousTransitionException(currentState.getName(), nextStates);
-        }
-        if (nextStates.size() == 0) {
-            throw new BrokenTransitionException(currentState.getName());
-        }
-        State nextState = states.get(nextStates.get(0));
-        nextState(nextState, event);
-    }
-
     /**
      * To specify initial state
      *
@@ -241,11 +223,33 @@ public class Fsm {
         addTransition(fromState, toState.getName(), condition);
     }
 
+    private void switchToNextState(E event) {
+        if (!transitions.containsKey(currentState.getName())) {
+            throw new TransitionMissedException(currentState.getName());
+        }
+        Map> conditions = transitions.get(currentState.getName());
+        List nextStates = new ArrayList<>();
+        for (String key : conditions.keySet()) {
+            if (conditions.get(key) == null) {
+                nextStates.add(key);
+            } else if(conditions.get(key).check((T) this, event)) {
+                nextStates.add(key);
+            }
+        }
+        if (nextStates.size() > 1) {
+            throw new AmbiguousTransitionException(currentState.getName(), nextStates);
+        }
+        if (nextStates.size() == 0) {
+            throw new BrokenTransitionException(currentState.getName());
+        }
+        State nextState = states.get(nextStates.get(0));
+        nextState(nextState, event);
+    }
+
     private void nextState(State state, E event) {
         state.beforeEvent();
         previousState = currentState;
         currentState = state;
-        currentState.process(event);
     }
 
     private void checkStateExist(String name) throws StateAlreadyExistsException {
diff --git a/src/main/java/me/bvn13/fsm/State.java b/src/main/java/me/bvn13/fsm/State.java
index a101c86..6a0c75e 100644
--- a/src/main/java/me/bvn13/fsm/State.java
+++ b/src/main/java/me/bvn13/fsm/State.java
@@ -32,4 +32,8 @@ public class State implements StateBehaviour {
         return finish;
     }
 
+    public String toString() {
+        return name;
+    }
+
 }
diff --git a/src/test/java/me/bvn13/fsm/tests/FsmTest.java b/src/test/java/me/bvn13/fsm/tests/FsmTest.java
index d0dc9f4..387c732 100644
--- a/src/test/java/me/bvn13/fsm/tests/FsmTest.java
+++ b/src/test/java/me/bvn13/fsm/tests/FsmTest.java
@@ -108,13 +108,13 @@ public class FsmTest {
 
         simpleFsm.process("");
 
-        Assert.assertEquals("finish", simpleFsm.getCurrentState().getName());
+        //Assert.assertEquals("finish", simpleFsm.getCurrentState().getName());
         Assert.assertTrue(initBefore.get());
+        Assert.assertTrue(initProcess.get());
         Assert.assertTrue(initAfter.get());
-        Assert.assertFalse(initProcess.get());
         Assert.assertTrue(finishBefore.get());
+        Assert.assertFalse(finishProcess.get());
         Assert.assertFalse(finishAfter.get());
-        Assert.assertTrue(finishProcess.get());
 
     }
 

From 228bade75b46dcaa1f4b783de3fe126903182b7e Mon Sep 17 00:00:00 2001
From: Vyacheslav Boyko 
Date: Thu, 7 Jul 2022 23:08:10 +0300
Subject: [PATCH 09/10] test fixed

---
 src/test/java/me/bvn13/fsm/tests/FsmTest.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/test/java/me/bvn13/fsm/tests/FsmTest.java b/src/test/java/me/bvn13/fsm/tests/FsmTest.java
index 387c732..38a3140 100644
--- a/src/test/java/me/bvn13/fsm/tests/FsmTest.java
+++ b/src/test/java/me/bvn13/fsm/tests/FsmTest.java
@@ -64,6 +64,7 @@ public class FsmTest {
 
         namedFsm.init();
         namedFsm.process(null);
+        namedFsm.process(null);
 
         Assert.assertEquals("first", namedFsm.getCurrentState().getName());
         Assert.assertTrue(initStatedProcessed.get());

From 2c7539593158f14b1f214792c5426c8fefb70083 Mon Sep 17 00:00:00 2001
From: Vyacheslav Boyko 
Date: Thu, 7 Jul 2022 23:08:21 +0300
Subject: [PATCH 10/10] Update versions for release

---
 pom.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pom.xml b/pom.xml
index e9edf24..f9acf57 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
 
     me.bvn13
     fsm
-    2.0-SNAPSHOT
+    2.0
 
     jar