/*
* Copyright 2015 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.statemachine.ensemble;
import java.util.Iterator;
import org.springframework.statemachine.StateMachine;
import org.springframework.statemachine.StateMachineContext;
import org.springframework.statemachine.listener.AbstractCompositeListener;
/**
* Default {@link EnsembleListener} dispatcher.
*
* @author Janne Valkealahti
*
* @param <S> the type of state
* @param <E> the type of event
*/
public class CompositeEnsembleListener<S, E> extends AbstractCompositeListener<EnsembleListener<S, E>> implements
EnsembleListener<S, E> {
@Override
public void stateMachineJoined(StateMachine<S, E> stateMachine, StateMachineContext<S, E> context) {
for (Iterator<EnsembleListener<S, E>> iterator = getListeners().reverse(); iterator.hasNext();) {
EnsembleListener<S, E> listener = iterator.next();
listener.stateMachineJoined(stateMachine, context);
}
}
@Override
public void stateMachineLeft(StateMachine<S, E> stateMachine, StateMachineContext<S, E> context) {
for (Iterator<EnsembleListener<S, E>> iterator = getListeners().reverse(); iterator.hasNext();) {
EnsembleListener<S, E> listener = iterator.next();
listener.stateMachineLeft(stateMachine, context);
}
}
@Override
public void stateChanged(StateMachineContext<S, E> context) {
for (Iterator<EnsembleListener<S, E>> iterator = getListeners().reverse(); iterator.hasNext();) {
EnsembleListener<S, E> listener = iterator.next();
listener.stateChanged(context);
}
}
@Override
public void ensembleError(StateMachineEnsembleException exception) {
for (Iterator<EnsembleListener<S, E>> iterator = getListeners().reverse(); iterator.hasNext();) {
EnsembleListener<S, E> listener = iterator.next();
listener.ensembleError(exception);
}
}
@Override
public void ensembleLeaderGranted(StateMachine<S, E> stateMachine) {
for (Iterator<EnsembleListener<S, E>> iterator = getListeners().reverse(); iterator.hasNext();) {
EnsembleListener<S, E> listener = iterator.next();
listener.ensembleLeaderGranted(stateMachine);
}
}
@Override
public void ensembleLeaderRevoked(StateMachine<S, E> stateMachine) {
for (Iterator<EnsembleListener<S, E>> iterator = getListeners().reverse(); iterator.hasNext();) {
EnsembleListener<S, E> listener = iterator.next();
listener.ensembleLeaderRevoked(stateMachine);
}
}
}