spring-batch CompositeSkipListener 源码
spring-batch CompositeSkipListener 代码
文件路径：/spring-batch-core/src/main/java/org/springframework/batch/core/listener/CompositeSkipListener.java
/*
* 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
*
* https://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<>();
/**
* Public setter for the listeners.
* @param listeners list of {@link SkipListener}s to be called when skip events occur.
*/
public void setListeners(List<? extends SkipListener<? super T, ? super S>> listeners) {
this.listeners.setItems(listeners);
}
/**
* Register additional listener.
* @param listener instance of {@link SkipListener} to be registered.
*/
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);
}
}
}
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