/*
* Copyright 2006-2013 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.batch.core.listener;
import java.util.Iterator;
import java.util.List;
import org.springframework.batch.core.SkipListener;
import org.springframework.core.Ordered;
/**
* @author Dave Syer
*
*/
public class CompositeSkipListener<T,S> implements SkipListener<T,S> {
private OrderedComposite<SkipListener<? super T,? super S>> listeners = new OrderedComposite<SkipListener<? super T,? super S>>();
/**
* Public setter for the listeners.
*
* @param listeners
*/
public void setListeners(List<? extends SkipListener<? super T,? super S>> listeners) {
this.listeners.setItems(listeners);
}
/**
* Register additional listener.
*
* @param listener
*/
public void register(SkipListener<? super T,? super S> listener) {
listeners.add(listener);
}
/**
* Call the registered listeners in order, respecting and prioritising those
* that implement {@link Ordered}.
* @see org.springframework.batch.core.SkipListener#onSkipInRead(java.lang.Throwable)
*/
@Override
public void onSkipInRead(Throwable t) {
for (Iterator<SkipListener<? super T,? super S>> iterator = listeners.iterator(); iterator.hasNext();) {
SkipListener<? super T,? super S> listener = iterator.next();
listener.onSkipInRead(t);
}
}
/**
* Call the registered listeners in order, respecting and prioritising those
* that implement {@link Ordered}.
* @see org.springframework.batch.core.SkipListener#onSkipInWrite(java.lang.Object,
* java.lang.Throwable)
*/
@Override
public void onSkipInWrite(S item, Throwable t) {
for (Iterator<SkipListener<? super T,? super S>> iterator = listeners.iterator(); iterator.hasNext();) {
SkipListener<? super T,? super S> listener = iterator.next();
listener.onSkipInWrite(item, t);
}
}
/**
* Call the registered listeners in order, respecting and prioritising those
* that implement {@link Ordered}.
* @see org.springframework.batch.core.SkipListener#onSkipInWrite(java.lang.Object,
* java.lang.Throwable)
*/
@Override
public void onSkipInProcess(T item, Throwable t) {
for (Iterator<SkipListener<? super T,? super S>> iterator = listeners.iterator(); iterator.hasNext();) {
SkipListener<? super T,? super S> listener = iterator.next();
listener.onSkipInProcess(item, t);
}
}
}