spring-batch StepExecutionApplicationEventAdvice 源码

2022-08-16
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spring-batch StepExecutionApplicationEventAdvice 代码

文件路径：/spring-batch-samples/src/main/java/org/springframework/batch/sample/jmx/StepExecutionApplicationEventAdvice.java

/*
 * Copyright 2006-2014 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.sample.jmx;

import org.aspectj.lang.JoinPoint;
import org.springframework.batch.core.StepExecution;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.context.ApplicationEventPublisherAware;

/**
 * Wraps calls for methods taking {@link StepExecution} as an argument and publishes
 * notifications in the form of {@link org.springframework.context.ApplicationEvent}.
 *
 * @author Dave Syer
 */
public class StepExecutionApplicationEventAdvice implements ApplicationEventPublisherAware {

	private ApplicationEventPublisher applicationEventPublisher;

	/*
	 * (non-Javadoc)
	 *
	 * @see org.springframework.context.ApplicationEventPublisherAware#
	 * setApplicationEventPublisher(org.springframework.context.ApplicationEventPublisher)
	 */
	@Override
	public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
		this.applicationEventPublisher = applicationEventPublisher;
	}

	public void before(JoinPoint jp, StepExecution stepExecution) {
		String msg = "Before: " + jp.toShortString() + " with: " + stepExecution;
		publish(jp.getTarget(), msg);
	}

	public void after(JoinPoint jp, StepExecution stepExecution) {
		String msg = "After: " + jp.toShortString() + " with: " + stepExecution;
		publish(jp.getTarget(), msg);
	}

	public void onError(JoinPoint jp, StepExecution stepExecution, Throwable t) {
		String msg = "Error in: " + jp.toShortString() + " with: " + stepExecution + " (" + t.getClass() + ":"
				+ t.getMessage() + ")";
		publish(jp.getTarget(), msg);
	}

	/*
	 * Publish a {@link SimpleMessageApplicationEvent} with the given parameters.
	 */
	private void publish(Object source, String message) {
		applicationEventPublisher.publishEvent(new SimpleMessageApplicationEvent(source, message));
	}

}

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所属分类： 后端技术
本文标签： Java Spring
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