kr.okplace.job.common.InfiniteLoopWriter.java Source code

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Here is the source code for kr.okplace.job.common.InfiniteLoopWriter.java

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/*
 * Copyright 2006-2007 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 kr.okplace.job.common;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.batch.core.StepExecution;
import org.springframework.batch.core.StepExecutionListener;
import org.springframework.batch.core.listener.StepExecutionListenerSupport;
import org.springframework.batch.item.ItemWriter;

/**
 * Simple module implementation that will always return true to indicate that
 * processing should continue. This is useful for testing graceful shutdown of
 * jobs.
 * 
 * @author Lucas Ward
 * 
 */
public class InfiniteLoopWriter extends StepExecutionListenerSupport implements ItemWriter<Object> {

    private StepExecution stepExecution;

    private int count = 0;

    private static final Log logger = LogFactory.getLog(InfiniteLoopWriter.class);

    /**
     * @see StepExecutionListener#beforeStep(StepExecution)
     */
    @Override
    public void beforeStep(StepExecution stepExecution) {
        this.stepExecution = stepExecution;
    }

    /**
     * 
     */
    public InfiniteLoopWriter() {
        super();
    }

    public void write(List<? extends Object> items) throws Exception {
        try {
            Thread.sleep(500);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
            throw new RuntimeException("Job interrupted.");
        }
        stepExecution.setWriteCount(++count);
        logger.info("Executing infinite loop, at count=" + count);
    }
}