org.springframework.batch.item.amqp.AmqpItemWriter Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of spring-batch-infrastructure Show documentation
Show all versions of spring-batch-infrastructure Show documentation
The Spring Batch Infrastructure is a set of
low-level components, interfaces and tools for batch processing
applications and optimisations
/*
* Copyright 2012-2023 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.item.amqp;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.amqp.core.AmqpTemplate;
import org.springframework.batch.item.Chunk;
import org.springframework.batch.item.ItemWriter;
import org.springframework.util.Assert;
/**
*
* AMQP {@link ItemWriter} implementation using an {@link AmqpTemplate} to send messages.
* Messages will be sent to the nameless exchange if not specified on the provided
* {@link AmqpTemplate}.
*
*
*
* This writer is thread-safe as long as the delegate AmqpTemplate
* implementation is thread-safe.
*
*
* @author Chris Schaefer
* @author Mahmoud Ben Hassine
*/
public class AmqpItemWriter implements ItemWriter {
private final AmqpTemplate amqpTemplate;
private final Log log = LogFactory.getLog(getClass());
public AmqpItemWriter(final AmqpTemplate amqpTemplate) {
Assert.notNull(amqpTemplate, "AmqpTemplate must not be null");
this.amqpTemplate = amqpTemplate;
}
@Override
public void write(final Chunk items) throws Exception {
if (log.isDebugEnabled()) {
log.debug("Writing to AMQP with " + items.size() + " items.");
}
for (T item : items) {
amqpTemplate.convertAndSend(item);
}
}
}