# Simple Final State Machine 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