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Merge branch 'release/2.0'

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This commit is contained in:
Vyacheslav Boyko 2022-07-07 23:08:24 +03:00
commit 3455d47cfe
44 changed files with 1640 additions and 831 deletions
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117
.mvn/wrapper/MavenWrapperDownloader.java vendored Normal file
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/*
* 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();
}
}

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.mvn/wrapper/maven-wrapper.jar vendored Normal file
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.mvn/wrapper/maven-wrapper.properties vendored Normal file
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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

36
build.gradle
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/*
* 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'
}

185
gradlew vendored
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#!/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 "$JAVACMD" "$@"

89
gradlew.bat vendored
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@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

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mvnw vendored Executable file
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#!/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} $MAVEN_CONFIG "$@"

182
mvnw.cmd vendored Normal file
View File

@ -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%

201
pom.xml
View File

@ -5,43 +5,42 @@
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>
<groupId>ru.bvn13</groupId> <groupId>me.bvn13</groupId>
<artifactId>fsm</artifactId> <artifactId>fsm</artifactId>
<version>1.0</version> <version>2.0</version>
<packaging>jar</packaging> <packaging>jar</packaging>
<name>Final State Machine</name> <name>Final State Machine</name>
<description>Final state machine</description> <description>Final state machine: String-stated, custom event handling</description>
<url>https://github.com/bvn13/FinalStateMachine</url> <url>https://github.com/bvn13/FinalStateMachine</url>
<licenses> <licenses>
<license> <license>
<name>Apache License, Version 2.0</name> <name>Apache License, Version 2.0</name>
<url>http://www.apache.org/licenses/LICENSE-2.0.txt</url> <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
<distribution>repo</distribution>
</license> </license>
</licenses> </licenses>
<developers>
<developer>
<id>owner</id>
<name>Vyacheslav Boyko</name>
<email>mail4bvn@gmail.com</email>
<timezone>UTC+3</timezone>
</developer>
</developers>
<properties> <properties>
<java.version>1.8</java.version> <!-- Java -->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target> <maven.compiler.target>1.8</maven.compiler.target>
<github.global.server>github</github.global.server> <!-- Encoding -->
<github.maven-plugin>0.12</github.maven-plugin> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<site.path>https://github.com/bvn13/FinalStateMachine</site.path> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<!-- Versions -->
<nexus.url>https://s01.oss.sonatype.org</nexus.url>
<!-- Publishing -->
<nexus.url>https://s01.oss.sonatype.org</nexus.url>
<maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>
<maven-surefire-plugin.version>3.0.0-M7</maven-surefire-plugin.version>
<nexus-staging-maven-plugin.version>1.6.13</nexus-staging-maven-plugin.version>
<maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
<gitflow-maven-plugin.version>1.18.0</gitflow-maven-plugin.version>
</properties> </properties>
@ -53,19 +52,6 @@
</repository> </repository>
</distributionManagement> </distributionManagement>
<!--
<repositories>
<repository>
<id>FinalStateMachine-mvn-repo</id>
<url>https://raw.github.com/bvn13/FinalStateMachine/mvn-repo/</url>
<snapshots>
<enabled>true</enabled>
<updatePolicy>always</updatePolicy>
</snapshots>
</repository>
</repositories>
-->
<dependencies> <dependencies>
<dependency> <dependency>
<groupId>junit</groupId> <groupId>junit</groupId>
@ -78,37 +64,152 @@
<build> <build>
<finalName>FinalStateMachine</finalName> <finalName>FinalStateMachine</finalName>
<pluginManagement>
<plugins> <plugins>
<plugin> <plugin>
<artifactId>maven-deploy-plugin</artifactId> <artifactId>maven-source-plugin</artifactId>
<version>2.8.2</version> <executions>
<execution>
<id>attach-sources</id>
<goals>
<goal>jar-no-fork</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>${maven-surefire-plugin.version}</version>
</plugin>
<plugin>
<groupId>com.amashchenko.maven.plugin</groupId>
<artifactId>gitflow-maven-plugin</artifactId>
<version>${gitflow-maven-plugin.version}</version>
<configuration> <configuration>
<altDeploymentRepository>internal.repo::default::file://${project.build.directory}/mvn-repo</altDeploymentRepository> <pushRemote>false</pushRemote>
<gitFlowConfig>
<developmentBranch>develop</developmentBranch>
</gitFlowConfig>
<incrementVersionAtFinish>true</incrementVersionAtFinish>
<versionDigitToIncrement>2</versionDigitToIncrement>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
<developers>
<developer>
<id>bvn13</id>
<name>Vyacheslav Boyko</name>
<email>dev@bvn13.me</email>
<roles>
<role>Developer</role>
</roles>
</developer>
</developers>
<scm>
<connection>scm:git:git://github.com/bvn13/FinalStateMachine.git</connection>
<developerConnection>scm:git:ssh://git@github.com:bvn13/FinalStateMachine.git</developerConnection>
<tag>HEAD</tag>
<url>https://github.com/bvn13/FinalStateMachinek.git</url>
</scm>
<profiles>
<profile>
<id>release</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<executions>
<execution>
<id>attach-sources</id>
<phase>verify</phase>
<goals>
<goal>jar-no-fork</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<executions>
<execution>
<id>attach-javadocs</id>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-deploy-plugin</artifactId>
<version>${maven-deploy-plugin.version}</version>
<configuration>
<skip>true</skip>
</configuration> </configuration>
</plugin> </plugin>
<plugin> <plugin>
<groupId>com.github.github</groupId> <groupId>org.sonatype.plugins</groupId>
<artifactId>site-maven-plugin</artifactId> <artifactId>nexus-staging-maven-plugin</artifactId>
<version>${github.maven-plugin}</version> <version>${nexus-staging-maven-plugin.version}</version>
<configuration> <extensions>true</extensions>
<message>Maven artifacts for ${project.version}</message>
<noJekyll>true</noJekyll>
<outputDirectory>${project.build.directory}/mvn-repo</outputDirectory>
<branch>refs/heads/mvn-repo</branch>
<includes><include>**/*</include></includes>
<repositoryName>FinalStateMachine</repositoryName>
<repositoryOwner>bvn13</repositoryOwner>
</configuration>
<executions> <executions>
<execution> <execution>
<goals> <id>default-deploy</id>
<goal>site</goal>
</goals>
<phase>deploy</phase> <phase>deploy</phase>
<goals>
<goal>deploy</goal>
</goals>
</execution>
</executions>
<configuration>
<serverId>ossrh</serverId>
<nexusUrl>${nexus.url}</nexusUrl>
<autoReleaseAfterClose>true</autoReleaseAfterClose>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-gpg-plugin</artifactId>
<version>${maven-gpg-plugin.version}</version>
<executions>
<execution>
<id>sign-artifacts</id>
<phase>verify</phase>
<goals>
<goal>sign</goal>
</goals>
</execution> </execution>
</executions> </executions>
</plugin> </plugin>
</plugins> </plugins>
</build> </build>
<distributionManagement>
<snapshotRepository>
<id>ossrh</id>
<url>${nexus.url}/content/repositories/snapshots</url>
</snapshotRepository>
<repository>
<id>ossrh</id>
<url>${nexus.url}/service/local/staging/deploy/maven2/</url>
</repository>
</distributionManagement>
<pluginRepositories>
<pluginRepository>
<id>jcenter</id>
<name>JCenter</name>
<url>https://jcenter.bintray.com/</url>
</pluginRepository>
</pluginRepositories>
</profile>
</profiles>
</project> </project>

78
readme.md
View File

@ -1,7 +1,83 @@
# Simple Final State Machine # 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<String> simpleFsm = Fsm
.<SimpleFsm<String>, String>from(SimpleFsm::new)
.withStates()
.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
<settings>
<servers>
<server>
<id>ossrh</id>
<username>your-jira-id</username>
<password>your-jira-pwd</password>
</server>
</servers>
</settings>
```
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 (c) bvn13

5
settings.gradle
View File

@ -1,5 +0,0 @@
/*
* This file was generated by the Gradle 'init' task.
*/
rootProject.name = 'fsm'

9
src/main/java/me/bvn13/fsm/Condition.java Normal file
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@ -0,0 +1,9 @@
package me.bvn13.fsm;
/**
* Condition of transitions
*/
@FunctionalInterface
public interface Condition<T extends Fsm, E> {
boolean check(T fsm, E event);
}

34
src/main/java/me/bvn13/fsm/ConditionBuilder.java Normal file
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@ -0,0 +1,34 @@
package me.bvn13.fsm;
public class ConditionBuilder<T extends Fsm, E> {
private final FsmBuilder<T,E> fsmBuilder;
private String from;
private String to;
private Condition<T,E> condition;
ConditionBuilder(FsmBuilder<T,E> fsmBuilder) {
this.fsmBuilder = fsmBuilder;
}
public ConditionBuilder<T,E> from(String from) {
this.from = from;
return this;
}
public ConditionBuilder<T,E> to(String to) {
this.to = to;
return this;
}
public ConditionBuilder<T,E> checking(Condition<T,E> condition) {
this.condition = condition;
return this;
}
public FsmBuilder<T,E> end() {
fsmBuilder.addTransition(from, to, condition);
return fsmBuilder;
}
}

271
src/main/java/me/bvn13/fsm/Fsm.java Normal file
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@ -0,0 +1,271 @@
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;
/**
* <p>
* <b>Final State Machine</b><br/>
* </p>
* <p>
* <ol>
* Each state machine must be prepared with:
* <li>Initial state</li>
* <li>Finish state - may be not several states</li>
* <li>Intermediate states - optionally</li>
* <li>All transitions needed</li>
* </ol>
* </p>
*
* <p>
* <ol>
* Each {@link State} may be specified with handlers:
* <li>Before handler - is called right before FSM changes INTO this state</li>
* <li>After handler - is called right before FSM changes FROM this state to another</li>
* <li>Processor - the method to process events</li>
* </ol>
* </p>
*
* <p>
* Transition is the Rule providing FSM the possibility to change between states.
*
* Each transition must be determined in terms of:
* <ol>
* <li>From State - mandatory</li>
* <li>To State - mandatory</li>
* <li>Condition - optionally. If specified, the FSM will check the condition in order to check the possibility
* to change from FROM State into TO State</li>
* </ol>
* </p>
*
*
* Simple way to use it - to construct an inherited class specified with the type of events to be processed
* during transitions.
* <pre>
* {@code
* SimpleFsm<String> simpleFsm = Fsm
* .<SimpleFsm<String>, String>from(SimpleFsm::new)
* .withStates()
* .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();
* </pre>
*
* {@link SimpleFsm}
*/
public class Fsm<T extends Fsm, E> {
private boolean done = false;
private State<E> initialState;
private State<E> currentState;
private State<E> previousState;
private final Map<String, State<E>> states = new HashMap<>();
private final Map<String, Map<String, Condition<T,E>>> 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 <T> the original FSM inherited class type
* @param <E> the class type of Events to be processed
*/
@SuppressWarnings("unchecked")
public static <T extends Fsm,E> FsmBuilderInitializer<T,E> from(Supplier<T> supplier) {
return new FsmBuilderInitializer<>(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();
}
/**
* 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
*
* @return {@link State}
*/
public State<E> getCurrentState() {
return currentState;
}
/**
* Returns previous state
*
* @return {@link State}
*/
public State<E> getPreviousState() {
return previousState;
}
/**
* To specify initial state
*
* @param state {@link State}
* @throws FsmException
*/
public void initState(State<E> state) throws FsmException {
state.setFSM(this);
addState(state);
initialState = state;
}
/**
* To add another state
*
* @param state {@link State}
* @throws FsmException
*/
public void addState(State<E> 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<T,E> 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<E> 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<E> toState, Condition<T,E> condition) throws FsmException {
addState(toState);
addTransition(fromState, toState.getName(), condition);
}
private void switchToNextState(E event) {
if (!transitions.containsKey(currentState.getName())) {
throw new TransitionMissedException(currentState.getName());
}
Map<String, Condition<T,E>> conditions = transitions.get(currentState.getName());
List<String> 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<E> nextState = states.get(nextStates.get(0));
nextState(nextState, event);
}
private void nextState(State<E> state, E event) {
state.beforeEvent();
previousState = currentState;
currentState = state;
}
private void checkStateExist(String name) throws StateAlreadyExistsException {
if (this.states.containsKey(name)) {
throw new StateAlreadyExistsException(name);
}
}
private void storeTransition(String fromState, String toState, Condition<T,E> 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);
}
}

52
src/main/java/me/bvn13/fsm/FsmBuilder.java Normal file
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@ -0,0 +1,52 @@
package me.bvn13.fsm;
import java.util.function.Supplier;
public class FsmBuilder<T extends Fsm, E> {
private final T fsm;
FsmBuilder(Supplier<T> supplier) {
fsm = supplier.get();
}
public StateBuilder<T,E> from(String state) {
return new StateBuilder<>(this, state, true, false);
}
public StateBuilder<T,E> state(String state) {
return new StateBuilder<>(this, state, false, false);
}
public StateBuilder<T,E> finish(String state) {
return new StateBuilder<>(this, state, false, true);
}
public ConditionBuilder<T,E> withTransition() {
return new ConditionBuilder<>(this);
}
public T create() {
fsm.init();
return fsm;
}
T getFsm() {
return fsm;
}
@SuppressWarnings("unchecked")
void addState(State<E> state, boolean isInitial) {
if (isInitial) {
fsm.initState(state);
} else {
fsm.addState(state);
}
}
@SuppressWarnings("unchecked")
void addTransition(String from, String to, Condition<T,E> condition) {
fsm.addTransition(from, to, condition);
}
}

17
src/main/java/me/bvn13/fsm/FsmBuilderInitializer.java Normal file
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@ -0,0 +1,17 @@
package me.bvn13.fsm;
import java.util.function.Supplier;
public class FsmBuilderInitializer<T extends Fsm, E> {
final Supplier<T> supplier;
FsmBuilderInitializer(Supplier<T> supplier) {
this.supplier = supplier;
}
public FsmBuilder<T,E> withStates() {
return new FsmBuilder<>(supplier);
}
}

9
src/main/java/me/bvn13/fsm/SimpleFsm.java Normal file
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@ -0,0 +1,9 @@
package me.bvn13.fsm;
/**
* Simple FSM
* @param <E> the type of Events
*/
public class SimpleFsm<E> extends Fsm<SimpleFsm, E> {
}

16
src/main/java/ru/bvn13/fsm/State.java → src/main/java/me/bvn13/fsm/State.java
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@ -1,18 +1,18 @@
package ru.bvn13.fsm; package me.bvn13.fsm;
/** /**
* Created by bvn13 on 28.12.2017. * Created by bvn13 on 28.12.2017.
*/ */
public class State implements StateBehaviour { public class State<E> implements StateBehaviour<E> {
private String name; private final String name;
private boolean finish; private boolean finish;
private FSM fsm; private Fsm fsm;
protected void setFSM(FSM fsm) { protected void setFSM(Fsm fsm) {
this.fsm = fsm; this.fsm = fsm;
} }
public FSM getFSM() { public Fsm getFSM() {
return this.fsm; return this.fsm;
} }
@ -32,4 +32,8 @@ public class State implements StateBehaviour {
return finish; return finish;
} }
public String toString() {
return name;
}
} }

20
src/main/java/me/bvn13/fsm/StateBehaviour.java Normal file
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@ -0,0 +1,20 @@
package me.bvn13.fsm;
/**
* State behavior
*/
public interface StateBehaviour<E> {
default void beforeEvent() {
}
default void afterEvent() {
}
default void process(E event) {
}
}

59
src/main/java/me/bvn13/fsm/StateBuilder.java Normal file
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@ -0,0 +1,59 @@
package me.bvn13.fsm;
import me.bvn13.fsm.dummy.DummyHandler;
import me.bvn13.fsm.dummy.DummyProcessor;
public class StateBuilder<T extends Fsm, E> {
private final FsmBuilder<T,E> fsmBuilder;
private final String name;
private final boolean isInitial;
private final boolean isFinishing;
private StateHandler<T> beforeHandler = new DummyHandler<>();
private StateHandler<T> afterHandler = new DummyHandler<>();
private StateProcessor<T,E> processor = new DummyProcessor<>();
StateBuilder(FsmBuilder<T,E> fsmBuilder, String name, boolean isInitial, boolean isFinishing) {
assert !(isInitial && isFinishing);
this.fsmBuilder = fsmBuilder;
this.name = name;
this.isInitial = isInitial;
this.isFinishing = isFinishing;
}
public FsmBuilder<T,E> end() {
fsmBuilder.addState(new State<E>(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<T,E> withBeforeHandler(StateHandler<T> handler) {
this.beforeHandler = handler;
return this;
}
public StateBuilder<T,E> withAfterHandler(StateHandler<T> handler) {
this.afterHandler = handler;
return this;
}
public StateBuilder<T,E> withProcessor(StateProcessor<T,E> processor) {
this.processor = processor;
return this;
}
}

12
src/main/java/me/bvn13/fsm/StateHandler.java Normal file
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@ -0,0 +1,12 @@
package me.bvn13.fsm;
/**
* State handler
* @param <T>
*/
@FunctionalInterface
public interface StateHandler<T extends Fsm> {
void handle(T fms);
}

13
src/main/java/me/bvn13/fsm/StateProcessor.java Normal file
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@ -0,0 +1,13 @@
package me.bvn13.fsm;
/**
* State processor
* @param <T> the type of FSM inherited class
* @param <E> the type of Events
*/
@FunctionalInterface
public interface StateProcessor<T extends Fsm, E> {
void process(T fms, E event);
}

11
src/main/java/me/bvn13/fsm/dummy/DummyHandler.java Normal file
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@ -0,0 +1,11 @@
package me.bvn13.fsm.dummy;
import me.bvn13.fsm.Fsm;
import me.bvn13.fsm.StateHandler;
public class DummyHandler<T extends Fsm> implements StateHandler<T> {
@Override
public void handle(T fms) {
}
}

11
src/main/java/me/bvn13/fsm/dummy/DummyProcessor.java Normal file
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@ -0,0 +1,11 @@
package me.bvn13.fsm.dummy;
import me.bvn13.fsm.Fsm;
import me.bvn13.fsm.StateProcessor;
public class DummyProcessor<T extends Fsm,E> implements StateProcessor<T,E> {
@Override
public void process(T fms, E event) {
}
}

6
src/main/java/ru/bvn13/fsm/Exceptions/AmbiguousTransitionException.java → src/main/java/me/bvn13/fsm/exceptions/AmbiguousTransitionException.java
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@ -1,11 +1,11 @@
package ru.bvn13.fsm.Exceptions; package me.bvn13.fsm.exceptions;
import java.util.List; 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) { public AmbiguousTransitionException(String message) {
super(message); super(message);
} }

10
src/main/java/me/bvn13/fsm/exceptions/BrokenTransitionException.java Normal file
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@ -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);
}
}

10
src/main/java/me/bvn13/fsm/exceptions/ConditionAlreadyExistsException.java Normal file
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@ -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));
}
}

8
src/main/java/ru/bvn13/fsm/Exceptions/FSMException.java → src/main/java/me/bvn13/fsm/exceptions/FsmException.java
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@ -1,14 +1,14 @@
package ru.bvn13.fsm.Exceptions; package me.bvn13.fsm.exceptions;
import java.io.PrintWriter; import java.io.PrintWriter;
import java.io.StringWriter; import java.io.StringWriter;
/** /**
* Created by bvn13 on 28.12.2017. * Parent FSM exception class
*/ */
public class FSMException extends Exception { public class FsmException extends RuntimeException {
protected String message; protected String message;
public FSMException(String message) { public FsmException(String message) {
this.message = message; this.message = message;
} }
protected String getStackTraceString() { protected String getStackTraceString() {

13
src/main/java/me/bvn13/fsm/exceptions/NotInitializedException.java Normal file
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@ -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");
}
}

10
src/main/java/me/bvn13/fsm/exceptions/StateAlreadyExistsException.java Normal file
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@ -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));
}
}

10
src/main/java/me/bvn13/fsm/exceptions/TransitionMissedException.java Normal file
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@ -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));
}
}

20
src/main/java/ru/bvn13/fsm/Condition.java
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@ -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;
}
}

8
src/main/java/ru/bvn13/fsm/ConditionBehaviour.java
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@ -1,8 +0,0 @@
package ru.bvn13.fsm;
/**
* Created by bvn13 on 28.12.2017.
*/
public interface ConditionBehaviour {
boolean check();
}

10
src/main/java/ru/bvn13/fsm/Exceptions/BrokenTransitionException.java
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@ -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);
}
}

10
src/main/java/ru/bvn13/fsm/Exceptions/ConditionExistsException.java
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@ -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));
}
}

13
src/main/java/ru/bvn13/fsm/Exceptions/NotInitedException.java
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@ -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");
}
}

10
src/main/java/ru/bvn13/fsm/Exceptions/StateExistsException.java
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@ -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));
}
}

10
src/main/java/ru/bvn13/fsm/Exceptions/TransitionMissedException.java
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@ -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));
}
}

142
src/main/java/ru/bvn13/fsm/FSM.java
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@ -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 Map<String, State> states;
private Map<String, Map<String, ConditionBehaviour>> 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) {
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<String, ConditionBehaviour> conditions = transitions.get(currentState.getName());
List<String> 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());
}
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);
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 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);
}
}

20
src/main/java/ru/bvn13/fsm/StateBehaviour.java
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@ -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() {
}
}

108
src/main/java/ru/bvn13/fsm/examples/DialogApplication.java
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@ -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();
}
}
}

122
src/test/java/me/bvn13/fsm/tests/FsmTest.java Normal file
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@ -0,0 +1,122 @@
package me.bvn13.fsm.tests;
import me.bvn13.fsm.Fsm;
import me.bvn13.fsm.SimpleFsm;
import me.bvn13.fsm.State;
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<NamedFsm, String> {
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<String>("init") {
@Override
public void process(String event) {
initStatedProcessed.set(true);
}
});
namedFsm.addTransition("init", new State<String>("first", true) {
@Override
public void process(String event) {
firstStatedProcessed.set(true);
}
});
namedFsm.addTransition("init", new State<String>("another", true) {
@Override
public void process(String event) {
anotherStatedProcessed.set(true);
}
}, (fsm, event) -> false);
namedFsm.init();
namedFsm.process(null);
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<String> simpleFsm = Fsm
.<SimpleFsm<String>, String>from(SimpleFsm::new)
.withStates()
.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(initProcess.get());
Assert.assertTrue(initAfter.get());
Assert.assertTrue(finishBefore.get());
Assert.assertFalse(finishProcess.get());
Assert.assertFalse(finishAfter.get());
}
}

77
src/test/java/me/bvn13/fsm/tests/examples/DialogApplication.java Normal file
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@ -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<DialogFSM, String> {
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<String>("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<String>("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();
}
}

87
src/test/java/ru/bvn13/fsm/tests/Tests.java
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@ -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"));
}
}