com.softrism.tortlets.batch.JobLauncherDetails.java Source code

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Here is the source code for com.softrism.tortlets.batch.JobLauncherDetails.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 com.softrism.tortlets.batch;

import java.util.Date;
import java.util.Map;
import java.util.Map.Entry;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.quartz.JobExecutionContext;
import org.springframework.batch.core.JobExecutionException;
import org.springframework.batch.core.JobParameters;
import org.springframework.batch.core.JobParametersBuilder;
import org.springframework.batch.core.configuration.JobLocator;
import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.scheduling.quartz.QuartzJobBean;

/**
 * @author Dave Syer
 * 
 */
public class JobLauncherDetails extends QuartzJobBean {

    /**
     * Special key in job data map for the name of a job to run.
     */
    static final String JOB_NAME = "jobName";

    private static Log log = LogFactory.getLog(JobLauncherDetails.class);

    private JobLocator jobLocator;

    private JobLauncher jobLauncher;

    /**
     * Public setter for the {@link JobLocator}.
     * @param jobLocator the {@link JobLocator} to set
     */
    public void setJobLocator(JobLocator jobLocator) {
        this.jobLocator = jobLocator;
    }

    /**
     * Public setter for the {@link JobLauncher}.
     * @param jobLauncher the {@link JobLauncher} to set
     */
    public void setJobLauncher(JobLauncher jobLauncher) {
        this.jobLauncher = jobLauncher;
    }

    @SuppressWarnings("unchecked")
    protected void executeInternal(JobExecutionContext contextFromQuartz) {
        Map<String, Object> jobDataMap = contextFromQuartz.getMergedJobDataMap();
        Date now = new Date();
        jobDataMap.put("TIME_STAMP", now.toString());
        // Add date stamp in map
        // Based on current time, which one timezone 2 am is it?
        // if its PST 2 am , add date + PST
        String jobName = (String) jobDataMap.get(JOB_NAME);
        log.info("Quartz trigger firing with Spring Batch jobName=" + jobName);
        JobParameters jobParameters = getJobParametersFromJobMap(jobDataMap);
        try {
            jobLauncher.run(jobLocator.getJob(jobName), jobParameters);
        } catch (JobExecutionException e) {
            log.error("Could not execute job.", e);
        }
    }

    /*
     * Copy parameters that are of the correct type over to
     * {@link JobParameters}, ignoring jobName.
     * 
     * @return a {@link JobParameters} instance
     */
    private JobParameters getJobParametersFromJobMap(Map<String, Object> jobDataMap) {

        JobParametersBuilder builder = new JobParametersBuilder();

        for (Entry<String, Object> entry : jobDataMap.entrySet()) {
            String key = entry.getKey();
            Object value = entry.getValue();
            if (value instanceof String && !key.equals(JOB_NAME)) {
                builder.addString(key, (String) value);
            } else if (value instanceof Float || value instanceof Double) {
                builder.addDouble(key, ((Number) value).doubleValue());
            } else if (value instanceof Integer || value instanceof Long) {
                builder.addLong(key, ((Number) value).longValue());
            } else if (value instanceof Date) {
                builder.addDate(key, (Date) value);
            } else {
                log.debug("JobDataMap contains values which are not job parameters (ignoring).");
            }
        }

        return builder.toJobParameters();

    }

}