List of usage examples for org.springframework.statemachine.config.model StateData isInitial
public boolean isInitial()
From source file:org.springframework.statemachine.config.AbstractStateMachineFactory.java
/** * Main constructor that create a {@link StateMachine}. * * @param uuid for internal usage. Can be null, in that case a random one will be generated. * @param machineId represent a user Id, up to you to set what you want. * @return a {@link StateMachine}// w ww . ja va 2s. co m */ @SuppressWarnings("unchecked") public StateMachine<S, E> getStateMachine(UUID uuid, String machineId) { StateMachineModel<S, E> stateMachineModel = resolveStateMachineModel(machineId); if (stateMachineModel.getConfigurationData().isVerifierEnabled()) { StateMachineModelVerifier<S, E> verifier = stateMachineModel.getConfigurationData().getVerifier(); if (verifier == null) { verifier = new CompositeStateMachineModelVerifier<S, E>(); } verifier.verify(stateMachineModel); } // shared DefaultExtendedState defaultExtendedState = new DefaultExtendedState(); StateMachine<S, E> machine = null; // we store mappings from state id's to states which gets // created during the process. This is needed for transitions to // find a correct mappings because they use state id's, not actual // states. final Map<S, State<S, E>> stateMap = new HashMap<S, State<S, E>>(); Stack<MachineStackItem<S, E>> regionStack = new Stack<MachineStackItem<S, E>>(); Stack<StateData<S, E>> stateStack = new Stack<StateData<S, E>>(); Map<Object, StateMachine<S, E>> machineMap = new HashMap<Object, StateMachine<S, E>>(); Map<S, StateHolder<S, E>> holderMap = new HashMap<S, StateHolder<S, E>>(); Iterator<Node<StateData<S, E>>> iterator = buildStateDataIterator(stateMachineModel); while (iterator.hasNext()) { Node<StateData<S, E>> node = iterator.next(); StateData<S, E> stateData = node.getData(); StateData<S, E> peek = stateStack.isEmpty() ? null : stateStack.peek(); // simply push and continue if (stateStack.isEmpty()) { stateStack.push(stateData); continue; } boolean stackContainsSameParent = false; Iterator<StateData<S, E>> ii = stateStack.iterator(); while (ii.hasNext()) { StateData<S, E> sd = ii.next(); if (stateData != null && ObjectUtils.nullSafeEquals(stateData.getState(), sd.getParent())) { stackContainsSameParent = true; break; } } if (stateData != null && !stackContainsSameParent) { stateStack.push(stateData); continue; } Collection<StateData<S, E>> stateDatas = popSameParents(stateStack); int initialCount = getInitialCount(stateDatas); Collection<Collection<StateData<S, E>>> regionsStateDatas = splitIntoRegions(stateDatas); Collection<TransitionData<S, E>> transitionsData = getTransitionData(iterator.hasNext(), stateDatas, stateMachineModel); if (initialCount > 1) { for (Collection<StateData<S, E>> regionStateDatas : regionsStateDatas) { machine = buildMachine(machineMap, stateMap, holderMap, regionStateDatas, transitionsData, resolveBeanFactory(stateMachineModel), contextEvents, defaultExtendedState, stateMachineModel.getTransitionsData(), resolveTaskExecutor(stateMachineModel), resolveTaskScheduler(stateMachineModel), machineId, null, stateMachineModel); regionStack.push(new MachineStackItem<S, E>(machine)); } Collection<Region<S, E>> regions = new ArrayList<Region<S, E>>(); while (!regionStack.isEmpty()) { MachineStackItem<S, E> pop = regionStack.pop(); regions.add(pop.machine); } S parent = (S) peek.getParent(); RegionState<S, E> rstate = buildRegionStateInternal(parent, regions, null, stateData != null ? stateData.getEntryActions() : null, stateData != null ? stateData.getExitActions() : null, new DefaultPseudoState<S, E>(PseudoStateKind.INITIAL)); if (stateData != null) { stateMap.put(stateData.getState(), rstate); } else { // TODO: don't like that we create a last machine here Collection<State<S, E>> states = new ArrayList<State<S, E>>(); states.add(rstate); Transition<S, E> initialTransition = new InitialTransition<S, E>(rstate); StateMachine<S, E> m = buildStateMachineInternal(states, new ArrayList<Transition<S, E>>(), rstate, initialTransition, null, defaultExtendedState, null, contextEvents, resolveBeanFactory(stateMachineModel), resolveTaskExecutor(stateMachineModel), resolveTaskScheduler(stateMachineModel), beanName, machineId != null ? machineId : stateMachineModel.getConfigurationData().getMachineId(), uuid, stateMachineModel); machine = m; } } else { machine = buildMachine(machineMap, stateMap, holderMap, stateDatas, transitionsData, resolveBeanFactory(stateMachineModel), contextEvents, defaultExtendedState, stateMachineModel.getTransitionsData(), resolveTaskExecutor(stateMachineModel), resolveTaskScheduler(stateMachineModel), machineId, uuid, stateMachineModel); if (peek.isInitial() || (!peek.isInitial() && !machineMap.containsKey(peek.getParent()))) { machineMap.put(peek.getParent(), machine); } } stateStack.push(stateData); } // setup autostart for top-level machine if (machine instanceof LifecycleObjectSupport) { ((LifecycleObjectSupport) machine) .setAutoStartup(stateMachineModel.getConfigurationData().isAutoStart()); } // set top-level machine as relay final StateMachine<S, E> fmachine = machine; fmachine.getStateMachineAccessor().doWithAllRegions(new StateMachineFunction<StateMachineAccess<S, E>>() { @Override public void apply(StateMachineAccess<S, E> function) { function.setRelay(fmachine); } }); // add monitoring hooks final StateMachineMonitor<S, E> stateMachineMonitor = stateMachineModel.getConfigurationData() .getStateMachineMonitor(); if (stateMachineMonitor != null || defaultStateMachineMonitor != null) { fmachine.getStateMachineAccessor().doWithRegion(new StateMachineFunction<StateMachineAccess<S, E>>() { @Override public void apply(StateMachineAccess<S, E> function) { if (defaultStateMachineMonitor != null) { function.addStateMachineMonitor(defaultStateMachineMonitor); } if (stateMachineMonitor != null) { function.addStateMachineMonitor(stateMachineMonitor); } } }); } // TODO: should error out if sec is enabled but spring-security is not in cp if (stateMachineModel.getConfigurationData().isSecurityEnabled()) { final StateMachineSecurityInterceptor<S, E> securityInterceptor = new StateMachineSecurityInterceptor<S, E>( stateMachineModel.getConfigurationData().getTransitionSecurityAccessDecisionManager(), stateMachineModel.getConfigurationData().getEventSecurityAccessDecisionManager(), stateMachineModel.getConfigurationData().getEventSecurityRule()); log.info("Adding security interceptor " + securityInterceptor); fmachine.getStateMachineAccessor() .doWithAllRegions(new StateMachineFunction<StateMachineAccess<S, E>>() { @Override public void apply(StateMachineAccess<S, E> function) { function.addStateMachineInterceptor(securityInterceptor); } }); } // setup distributed state machine if needed. // we wrap previously build machine with a distributed // state machine and set it to use given ensemble. if (stateMachineModel.getConfigurationData().getStateMachineEnsemble() != null) { DistributedStateMachine<S, E> distributedStateMachine = new DistributedStateMachine<S, E>( stateMachineModel.getConfigurationData().getStateMachineEnsemble(), machine); distributedStateMachine.setAutoStartup(stateMachineModel.getConfigurationData().isAutoStart()); distributedStateMachine.afterPropertiesSet(); machine = distributedStateMachine; } for (StateMachineListener<S, E> listener : stateMachineModel.getConfigurationData() .getStateMachineListeners()) { machine.addStateListener(listener); } // go through holders and fix state references which // were not known at a time holder was created for (Entry<S, StateHolder<S, E>> holder : holderMap.entrySet()) { holder.getValue().setState(stateMap.get(holder.getKey())); } return delegateAutoStartup(machine); }
From source file:org.springframework.statemachine.config.AbstractStateMachineFactory.java
private int getInitialCount(Collection<StateData<S, E>> stateDatas) { int count = 0; for (StateData<S, E> stateData : stateDatas) { if (stateData.isInitial()) { count++;//from w w w . j a va 2 s .co m } } return count; }
From source file:org.springframework.statemachine.config.AbstractStateMachineFactory.java
@SuppressWarnings("unchecked") private StateMachine<S, E> buildMachine(Map<Object, StateMachine<S, E>> machineMap, Map<S, State<S, E>> stateMap, Map<S, StateHolder<S, E>> holderMap, Collection<StateData<S, E>> stateDatas, Collection<TransitionData<S, E>> transitionsData, BeanFactory beanFactory, Boolean contextEvents, DefaultExtendedState defaultExtendedState, TransitionsData<S, E> stateMachineTransitions, TaskExecutor taskExecutor, TaskScheduler taskScheduler, String machineId, UUID uuid, StateMachineModel<S, E> stateMachineModel) { State<S, E> state = null; State<S, E> initialState = null; PseudoState<S, E> historyState = null; Action<S, E> initialAction = null; Collection<State<S, E>> states = new ArrayList<State<S, E>>(); // for now loop twice and build states for // non initial/end pseudostates last for (StateData<S, E> stateData : stateDatas) { StateMachine<S, E> stateMachine = machineMap.get(stateData.getState()); if (stateMachine == null) { // get a submachine from state data if we didn't have // it already. stays null if we don't have one. stateMachine = stateData.getSubmachine(); if (stateMachine == null && stateData.getSubmachineFactory() != null) { stateMachine = stateData.getSubmachineFactory().getStateMachine(machineId); }//from ww w . j av a 2 s. c om } state = stateMap.get(stateData.getState()); if (state != null) { states.add(state); if (stateData.isInitial()) { initialState = state; } continue; } if (stateMachine != null) { PseudoState<S, E> pseudoState = null; if (stateData.isInitial()) { pseudoState = new DefaultPseudoState<S, E>(PseudoStateKind.INITIAL); } state = new StateMachineState<S, E>(stateData.getState(), stateMachine, stateData.getDeferred(), stateData.getEntryActions(), stateData.getExitActions(), pseudoState); // TODO: below if/else doesn't feel right if (stateDatas.size() > 1 && stateData.isInitial()) { initialState = state; initialAction = stateData.getInitialAction(); } else if (stateDatas.size() == 1) { initialState = state; initialAction = stateData.getInitialAction(); } states.add(state); } else { PseudoState<S, E> pseudoState = null; if (stateData.isInitial()) { pseudoState = new DefaultPseudoState<S, E>(PseudoStateKind.INITIAL); } else if (stateData.isEnd()) { pseudoState = new DefaultPseudoState<S, E>(PseudoStateKind.END); } else if (stateData.getPseudoStateKind() == PseudoStateKind.HISTORY_SHALLOW) { continue; } else if (stateData.getPseudoStateKind() == PseudoStateKind.HISTORY_DEEP) { continue; } else if (stateData.getPseudoStateKind() == PseudoStateKind.JOIN) { continue; } else if (stateData.getPseudoStateKind() == PseudoStateKind.FORK) { continue; } else if (stateData.getPseudoStateKind() == PseudoStateKind.CHOICE) { continue; } else if (stateData.getPseudoStateKind() == PseudoStateKind.JUNCTION) { continue; } else if (stateData.getPseudoStateKind() == PseudoStateKind.ENTRY) { continue; } else if (stateData.getPseudoStateKind() == PseudoStateKind.EXIT) { continue; } state = buildStateInternal(stateData.getState(), stateData.getDeferred(), stateData.getEntryActions(), stateData.getExitActions(), stateData.getStateActions(), pseudoState, stateMachineModel); if (stateData.isInitial()) { initialState = state; initialAction = stateData.getInitialAction(); } states.add(state); } stateMap.put(stateData.getState(), state); } for (StateData<S, E> stateData : stateDatas) { if (stateData.getPseudoStateKind() == PseudoStateKind.HISTORY_SHALLOW) { State<S, E> defaultState = null; S s = stateData.getState(); Collection<HistoryData<S, E>> historys = stateMachineTransitions.getHistorys(); for (HistoryData<S, E> history : historys) { if (history.getSource().equals(s)) { defaultState = stateMap.get(history.getTarget()); } } StateHolder<S, E> defaultStateHolder = new StateHolder<S, E>(defaultState); StateHolder<S, E> containingStateHolder = new StateHolder<S, E>( stateMap.get(stateData.getParent())); if (containingStateHolder.getState() == null) { holderMap.put((S) stateData.getParent(), containingStateHolder); } PseudoState<S, E> pseudoState = new HistoryPseudoState<S, E>(PseudoStateKind.HISTORY_SHALLOW, defaultStateHolder, containingStateHolder); state = buildStateInternal(stateData.getState(), stateData.getDeferred(), stateData.getEntryActions(), stateData.getExitActions(), stateData.getStateActions(), pseudoState, stateMachineModel); states.add(state); stateMap.put(stateData.getState(), state); historyState = pseudoState; } else if (stateData.getPseudoStateKind() == PseudoStateKind.HISTORY_DEEP) { State<S, E> defaultState = null; S s = stateData.getState(); Collection<HistoryData<S, E>> historys = stateMachineTransitions.getHistorys(); for (HistoryData<S, E> history : historys) { if (history.getSource().equals(s)) { defaultState = stateMap.get(history.getTarget()); } } StateHolder<S, E> defaultStateHolder = new StateHolder<S, E>(defaultState); StateHolder<S, E> containingStateHolder = new StateHolder<S, E>( stateMap.get(stateData.getParent())); if (containingStateHolder.getState() == null) { holderMap.put((S) stateData.getParent(), containingStateHolder); } PseudoState<S, E> pseudoState = new HistoryPseudoState<S, E>(PseudoStateKind.HISTORY_DEEP, defaultStateHolder, containingStateHolder); state = buildStateInternal(stateData.getState(), stateData.getDeferred(), stateData.getEntryActions(), stateData.getExitActions(), stateData.getStateActions(), pseudoState, stateMachineModel); states.add(state); stateMap.put(stateData.getState(), state); historyState = pseudoState; } if (stateData.getPseudoStateKind() == PseudoStateKind.CHOICE) { S s = stateData.getState(); List<ChoiceData<S, E>> list = stateMachineTransitions.getChoices().get(s); List<ChoiceStateData<S, E>> choices = new ArrayList<ChoiceStateData<S, E>>(); for (ChoiceData<S, E> c : list) { StateHolder<S, E> holder = new StateHolder<S, E>(stateMap.get(c.getTarget())); if (holder.getState() == null) { holderMap.put(c.getTarget(), holder); } choices.add(new ChoiceStateData<S, E>(holder, c.getGuard())); } PseudoState<S, E> pseudoState = new ChoicePseudoState<S, E>(choices); state = buildStateInternal(stateData.getState(), stateData.getDeferred(), stateData.getEntryActions(), stateData.getExitActions(), stateData.getStateActions(), pseudoState, stateMachineModel); states.add(state); stateMap.put(stateData.getState(), state); } else if (stateData.getPseudoStateKind() == PseudoStateKind.JUNCTION) { S s = stateData.getState(); List<JunctionData<S, E>> list = stateMachineTransitions.getJunctions().get(s); List<JunctionStateData<S, E>> junctions = new ArrayList<JunctionStateData<S, E>>(); for (JunctionData<S, E> c : list) { StateHolder<S, E> holder = new StateHolder<S, E>(stateMap.get(c.getTarget())); if (holder.getState() == null) { holderMap.put(c.getTarget(), holder); } junctions.add(new JunctionStateData<S, E>(holder, c.getGuard())); } PseudoState<S, E> pseudoState = new JunctionPseudoState<S, E>(junctions); state = buildStateInternal(stateData.getState(), stateData.getDeferred(), stateData.getEntryActions(), stateData.getExitActions(), stateData.getStateActions(), pseudoState, stateMachineModel); states.add(state); stateMap.put(stateData.getState(), state); } else if (stateData.getPseudoStateKind() == PseudoStateKind.ENTRY) { S s = stateData.getState(); Collection<EntryData<S, E>> entrys = stateMachineTransitions.getEntrys(); for (EntryData<S, E> entry : entrys) { if (s.equals(entry.getSource())) { PseudoState<S, E> pseudoState = new EntryPseudoState<S, E>(stateMap.get(entry.getTarget())); state = buildStateInternal(stateData.getState(), stateData.getDeferred(), stateData.getEntryActions(), stateData.getExitActions(), stateData.getStateActions(), pseudoState, stateMachineModel); states.add(state); stateMap.put(stateData.getState(), state); break; } } } else if (stateData.getPseudoStateKind() == PseudoStateKind.EXIT) { S s = stateData.getState(); Collection<ExitData<S, E>> exits = stateMachineTransitions.getExits(); for (ExitData<S, E> entry : exits) { if (s.equals(entry.getSource())) { StateHolder<S, E> holder = new StateHolder<S, E>(stateMap.get(entry.getTarget())); if (holder.getState() == null) { holderMap.put(entry.getTarget(), holder); } PseudoState<S, E> pseudoState = new ExitPseudoState<S, E>(holder); state = buildStateInternal(stateData.getState(), stateData.getDeferred(), stateData.getEntryActions(), stateData.getExitActions(), stateData.getStateActions(), pseudoState, stateMachineModel); states.add(state); stateMap.put(stateData.getState(), state); break; } } } else if (stateData.getPseudoStateKind() == PseudoStateKind.FORK) { S s = stateData.getState(); List<S> list = stateMachineTransitions.getForks().get(s); List<State<S, E>> forks = new ArrayList<State<S, E>>(); for (S fs : list) { forks.add(stateMap.get(fs)); } PseudoState<S, E> pseudoState = new ForkPseudoState<S, E>(forks); state = buildStateInternal(stateData.getState(), stateData.getDeferred(), stateData.getEntryActions(), stateData.getExitActions(), stateData.getStateActions(), pseudoState, stateMachineModel); states.add(state); stateMap.put(stateData.getState(), state); } else if (stateData.getPseudoStateKind() == PseudoStateKind.JOIN) { S s = stateData.getState(); List<S> list = stateMachineTransitions.getJoins().get(s); List<State<S, E>> joins = new ArrayList<State<S, E>>(); // if join source is a regionstate, get // it's end states from regions if (list.size() == 1) { State<S, E> ss1 = stateMap.get(list.get(0)); if (ss1 instanceof RegionState) { Collection<Region<S, E>> regions = ((RegionState<S, E>) ss1).getRegions(); for (Region<S, E> r : regions) { Collection<State<S, E>> ss2 = r.getStates(); for (State<S, E> ss3 : ss2) { if (ss3.getPseudoState() != null && ss3.getPseudoState().getKind() == PseudoStateKind.END) { joins.add(ss3); continue; } } } } } else { for (S fs : list) { joins.add(stateMap.get(fs)); } } List<JoinStateData<S, E>> joinTargets = new ArrayList<JoinStateData<S, E>>(); Collection<TransitionData<S, E>> transitions = stateMachineTransitions.getTransitions(); for (TransitionData<S, E> tt : transitions) { if (tt.getSource() == s) { StateHolder<S, E> holder = new StateHolder<S, E>(stateMap.get(tt.getTarget())); if (holder.getState() == null) { holderMap.put(tt.getTarget(), holder); } joinTargets.add(new JoinStateData<S, E>(holder, tt.getGuard())); } } JoinPseudoState<S, E> pseudoState = new JoinPseudoState<S, E>(joins, joinTargets); state = buildStateInternal(stateData.getState(), stateData.getDeferred(), stateData.getEntryActions(), stateData.getExitActions(), stateData.getStateActions(), pseudoState, stateMachineModel); states.add(state); stateMap.put(stateData.getState(), state); } } Collection<Transition<S, E>> transitions = new ArrayList<Transition<S, E>>(); for (TransitionData<S, E> transitionData : transitionsData) { S source = transitionData.getSource(); S target = transitionData.getTarget(); E event = transitionData.getEvent(); Long period = transitionData.getPeriod(); Integer count = transitionData.getCount(); Trigger<S, E> trigger = null; if (event != null) { trigger = new EventTrigger<S, E>(event); } else if (period != null) { TimerTrigger<S, E> t = new TimerTrigger<S, E>(period, count != null ? count : 0); if (beanFactory != null) { t.setBeanFactory(beanFactory); } if (taskExecutor != null) { t.setTaskExecutor(taskExecutor); } if (taskScheduler != null) { t.setTaskScheduler(taskScheduler); } trigger = t; ((AbstractState<S, E>) stateMap.get(source)).getTriggers().add(trigger); } if (transitionData.getKind() == TransitionKind.EXTERNAL) { // TODO can we do this? if (stateMap.get(source) == null || stateMap.get(target) == null) { continue; } DefaultExternalTransition<S, E> transition = new DefaultExternalTransition<S, E>( stateMap.get(source), stateMap.get(target), transitionData.getActions(), event, transitionData.getGuard(), trigger, transitionData.getSecurityRule()); transitions.add(transition); } else if (transitionData.getKind() == TransitionKind.LOCAL) { // TODO can we do this? if (stateMap.get(source) == null || stateMap.get(target) == null) { continue; } DefaultLocalTransition<S, E> transition = new DefaultLocalTransition<S, E>(stateMap.get(source), stateMap.get(target), transitionData.getActions(), event, transitionData.getGuard(), trigger, transitionData.getSecurityRule()); transitions.add(transition); } else if (transitionData.getKind() == TransitionKind.INTERNAL) { DefaultInternalTransition<S, E> transition = new DefaultInternalTransition<S, E>( stateMap.get(source), transitionData.getActions(), event, transitionData.getGuard(), trigger, transitionData.getSecurityRule()); transitions.add(transition); } } if (stateMachineTransitions.getJoins() != null) { for (Entry<S, List<S>> entry : stateMachineTransitions.getJoins().entrySet()) { if (stateMap.get(entry.getKey()) != null) { List<S> entryList = entry.getValue(); for (S entryState : entryList) { State<S, E> source = stateMap.get(entryState); if (source != null && !source.isOrthogonal()) { State<S, E> target = stateMap.get(entry.getKey()); DefaultExternalTransition<S, E> transition = new DefaultExternalTransition<S, E>(source, target, null, null, null, null, null); transitions.add(transition); } } } } } Transition<S, E> initialTransition = new InitialTransition<S, E>(initialState, initialAction); StateMachine<S, E> machine = buildStateMachineInternal(states, transitions, initialState, initialTransition, null, defaultExtendedState, historyState, contextEvents, beanFactory, taskExecutor, taskScheduler, beanName, machineId != null ? machineId : stateMachineModel.getConfigurationData().getMachineId(), uuid, stateMachineModel); return machine; }