Example usage for org.apache.commons.scxml.model SCXML getTargets

Introduction

In this page you can find the example usage for org.apache.commons.scxml.model SCXML getTargets.

Prototype

public final Map<String, TransitionTarget> getTargets() 

Source Link

Document

Get the targets map, which is a Map of all States and Parallels associated with this state machine, keyed by their id.

Usage

From source file:org.dishevelled.piccolo.sprite.statemachine.AbstractStateMachineSprite.java

/**
 * Initialize the specified state machine.  Animations are loaded for all
 * the state ids and the current animation is set to the initial target, if any.
 *
 * <p>//  www . ja  v a 2  s . c  o m
 * <b>Note:</b> this method should be called from the constructor
 * of a subclass after its state machine has been instantiated.
 * </p>
 *
 * @param stateMachine state machine to initialize, must not be null
 */
protected final void initializeStateMachine(final SCXML stateMachine) {
    if (stateMachine == null) {
        throw new IllegalArgumentException("stateMachine must not be null");
    }
    // load animations for state ids
    for (Iterator<?> entries = stateMachine.getTargets().entrySet().iterator(); entries.hasNext();) {
        Map.Entry<?, ?> entry = (Map.Entry<?, ?>) entries.next();
        String id = (String) entry.getKey();
        Object target = entry.getValue();
        if (target instanceof State) {
            Animation animation = createAnimation(id);
            if (animation != null) {
                animations.put(id, animation);
            }
        }
    }
    // set the current animation to the initial target, if any
    String initialTargetId = (stateMachine.getInitialTarget() == null) ? null
            : stateMachine.getInitialTarget().getId();
    if (animations.containsKey(initialTargetId)) {
        currentAnimation = animations.get(initialTargetId);
    }
    // create a state machine support class that delegates to this
    stateMachineSupport = new StateMachineSupport(this, stateMachine);
    // update current animation on entry to a new state
    stateMachineSupport.getExecutor().addListener(stateMachine, new AbstractSCXMLListener() {
        @Override
        public void onEntry(final TransitionTarget state) {
            Animation animation = animations.get(state.getId());
            if (animation != null) {
                currentAnimation = animation;
            }
        }
    });
}

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