- This is a web based distributed zookeeper state machine
sample showing how multiple Spring boot instances having
a state machine can work with a zookeeper to distribute state
handling thoughout a jvm boundaries.
- Also this example is using websocket support to have live
updates of a UI for state machine state changes.
- Add related error handling methods to StateMachine.
- Enhance StateMachineListener and context events around
error events.
- Modify StateMachineInterceptor and stuff around it order
to handle errors.
- Fixes#6, fixes#77
- Fix some concurrent event issues which were
born with new tests
- Enhance tests for dist machine and ensemble
- Add new features to testing system
- Polish and add more logging
- Relates to #49
- New project spring-statemachine-test which contains public
classes to easy generic state machine testing.
- Concepts of StateMachineTestPlan and StateMachineTestPlanBuilder.
- Replaced one zk test to use this framework.
- Fix AbstractStateMachineFactory so that it does not try
to create transitions with null source or target. Basically we
just skip transition source or target which doesn't belong to
region.
- Change DefaultExtendedState to use ConcurrentHashMap so that
there's less change to get into trouble with concurrency.
- Add statechart for tasks recipe.
- Fix various concepts in TasksHandler and its tests.
- Prepare some examples for docs.
- Fixes#74
- Fixes#86
- Fix internal transition changes when extended
state variables has been modified. Also internal
transition is now correctly passed into other
distributed state machines.
- Rename StateChangeInterceptor to StateMachineInterceptor and
add methods for pre/post transitions.
- Adding getId concept into a state machine to help distributed
machines to know from where a state change originates.
- Fix ZookeeperStateMachineEnsemble to work better with
persisted state machine contexts.
- StateMachineAccess, replace state reset and variables
with a StateMachineContext.
- Additional fixes to reset state properly even if
target transition is a super state.
- Some polish
- Add tests
- Fixes#82
- Now have configure method ConfigurationConfigurer.autoStart(boolean)
which can be used to enable autostart feature for top-level state machine.
We keep this feature disabled as default because most of the cases it is
easier to enable it than disable it.
- Reported and fixex #81
- Change how internal state is entered and handled
when transition doesn't terminate into initial state.
- Needed to change stuff in various places because
some of the concepts were literally broken which were
overlooked due to missing tests.
- OnStateNotAcceptedEvent is fired via context
if event is not accepted.
- eventNotAccepted called via StateMachineListener
if event is not accepted.
- Test in StateMachineEventTests.testEventNotAccepted()
- Fixes#43
- Fixes#71
- If substate is entered directry, we don't
go via initial state for particular state machine
where transition ends.
- Fixing other tests which assumed initial state is entered.
- In terms of a history state, initial state is still entered.
- Relates to #74
- Tasks recipe not yet fully working, need to get
this work in to be able to work with other tickets.
- Add childs to StateMachineContext
- A lot of fixes to regions concept throughout
a code base. Some of the concepts were really broken
if there were a complex recursive set of regions, etc.
- Add task executor/scheduler to StateMachineBuilder
- Remove away from plain serialize/deserialize to write/read
concept which works better in a generic abstraction.
- Tweak related class in zookeeper package.
- Relates to #35
- New configurer which can be used to define an ensemble which
if is set automatically wraps a machine with a distributed
state machine and sets it to use an given ensemble.
- Relates to #35
- Move away from using state machine listener if favor
of interceptor which allows to skip state change.
- Remove previously added method in a
StateMachineListener. (was a bad idea).
- More tweaks to zk example
- Relates to #35
- Relates to #45
- Modify current annotation builder model to work via
manual StateMachineBuilder class.
- Add ConfigurationConfigurer to configure bean factory,
task executor and task scheduler via builder.
- NOTE: not yet fully working distributed sm, this
commit is considered to be a stage 1 of further
commits on this matter.
- Preliminary concept of DistributedStateMachine,
StateMachineEnsemble and StateMachinePersist.
- New module spring-statemachine-zookeeper order to
persist state in a distributed matter.
- Refactoring concept of a state machine access to get
better internal access into a sm via functional interfaces.
- Change build to use jdk7 and change test to rely on jdk8
order to test functional lambdas.
- new zookeeper sample demonstrating distributed concepts.
- Relates t0 #35 and #34.
- No docs until things are fully implemented.
- Add new StateContextExpressionMethods support class.
- Change SpelExpressionGuard to user methods class.
- Add new SpelExpressionAction which can take expression
to execute action.
