Example usage for org.springframework.statemachine.action Action Action

Introduction

In this page you can find the example usage for org.springframework.statemachine.action Action Action.

Prototype

Action

Source Link

Usage

From source file:org.springframework.statemachine.recipes.tasks.TasksHandler.java

/**
 * {@link Action} which simply sends an event of continue
 * tasks into a state machine.//from  ww  w  . j  a  va 2s .co  m
 *
 * @return the action
 */
private Action<String, String> continueAction() {
    return new Action<String, String>() {

        @Override
        public void execute(StateContext<String, String> context) {
            listener.onTasksContinue();
        }
    };
}

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From source file:org.springframework.statemachine.recipes.tasks.TasksHandler.java

/**
 * {@link Action} calls {@link TasksListener#onTasksAutomaticFix(StateContext)}
 * before checking status of extended state variables related to tasks. If all
 * variables are ok, event {@code EVENT_CONTINUE} is sent, otherwise event
 * {@code EVENT_FALLBACK} is send which takes state machine into a manual handling.
 *
 * @return the action/*from   w  w w  .  j  av a 2s.  c o m*/
 */
private Action<String, String> automaticAction() {
    return new Action<String, String>() {

        @Override
        public void execute(StateContext<String, String> context) {

            listener.onTasksAutomaticFix(TasksHandler.this, context);

            boolean hasErrors = false;
            Map<Object, Object> variables = context.getExtendedState().getVariables();
            for (Entry<Object, Object> entry : variables.entrySet()) {
                if (entry.getKey() instanceof String
                        && ((String) entry.getKey()).startsWith(STATE_TASKS_PREFIX)) {
                    if (entry.getValue() instanceof Integer) {
                        Integer value = (Integer) entry.getValue();
                        if (value < 0) {
                            hasErrors = true;
                            break;
                        }
                    }
                }
            }
            if (hasErrors) {
                context.getStateMachine().sendEvent(EVENT_FALLBACK);
            } else {
                context.getStateMachine().sendEvent(EVENT_CONTINUE);
            }
        }
    };
}

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From source file:org.springframework.statemachine.recipes.tasks.TasksHandler.java

/**
 * {@link Action} which resets related extended state variables
 * to zero for tasks order to indicate a fixed tasks.
 *
 * @return the action/*  w  w w  .  j a  v  a2s . c  o  m*/
 */
private Action<String, String> fixAction() {
    return new Action<String, String>() {

        @Override
        public void execute(StateContext<String, String> context) {
            Map<Object, Object> variables = context.getExtendedState().getVariables();
            for (Entry<Object, Object> entry : variables.entrySet()) {
                if (entry.getKey() instanceof String
                        && ((String) entry.getKey()).startsWith(STATE_TASKS_PREFIX)) {
                    if (entry.getValue() instanceof Integer) {
                        Integer value = (Integer) entry.getValue();
                        if (value < 0) {
                            variables.put(entry.getKey(), 0);
                        }
                    }
                }
            }
        }
    };
}

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