Example usage for org.apache.commons.scxml ErrorReporter onError

Introduction

In this page you can find the example usage for org.apache.commons.scxml ErrorReporter onError.

Prototype

void onError(String errCode, String errDetail, Object errCtx);

Source Link

Document

Handler for reporting an error.

Usage

From source file:alma.acs.nc.sm.generic.AcsScxmlDispatchingAction.java

public void execute(final EventDispatcher evtDispatcher, final ErrorReporter errRep,
        final SCInstance scInstance, final Log appLog, final Collection derivedEvents)
        throws ModelException, SCXMLExpressionException {

    try {/*www  . j  a  v a2s .co  m*/
        getActionDispatcher(scInstance);
    } catch (Exception ex) {
        errRep.onError(ErrorConstants.UNDEFINED_VARIABLE,
                "Failed to get UserActionDispatcher object from root context.", ex);
    }

    if (disp != null && action != null) {
        // forward the action call to the dispatcher
        disp.execute(action, evtDispatcher, errRep, scInstance, derivedEvents);
    } else {
        errRep.onError(ErrorConstants.UNDEFINED_VARIABLE,
                "Failed to get UserActionDispatcher object from root context.", null);
    }
}

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From source file:alma.acs.nc.sm.generic.AcsScxmlActionDispatcher.java

/**
 * Generic action handler, dispatches to the right handler based on action type.
 * <p>/*w  w w  .j  a v  a2  s . co m*/
 * TODO: org.apache.commons.scxml.env.SimpleErrorReporter#onError prints the class name of the "Object errCtx".
 *       Currently we'd get NPE or useless info.
 */
public void execute(A action, final EventDispatcher evtDispatcher, final ErrorReporter errRep,
        final SCInstance scInstance, final Collection<TriggerEvent> derivedEvents)
        throws ModelException, SCXMLExpressionException {
    AcsScxmlActionExecutor<A> handler = getActionHandler(action);
    if (handler != null) {
        boolean handledAction = false;
        try {
            handledAction = handler.execute(action, evtDispatcher, errRep, scInstance, derivedEvents);
        } catch (AcsJStateMachineActionEx ex) {
            handledAction = true;

            if (actionExceptionHandler != null) { // handler is optional
                // ex will be thrown at the user
                actionExceptionHandler.setActionException(ex);
            } else {
                logger.log(Level.WARNING,
                        "Handler " + handler.getClass() + " failed to execute action " + action.name(), ex);
            }

            // TODO: define and fire a standardized internal error event so that the state machine
            // can reflect the problem and can be maneuvered out of the error again by the user 
        }
        if (!handledAction) {
            errRep.onError(ErrorConstants.UNKNOWN_ACTION,
                    "Handler " + handler.getClass() + " handler unexpectedly did not handle action ", action);
        }
    } else {
        errRep.onError(ErrorConstants.UNKNOWN_ACTION, "No handler registered for action " + action.name(),
                null);
    }
}

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