fr.hoteia.qalingo.core.batch.JobLauncherDetails.java Source code

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Here is the source code for fr.hoteia.qalingo.core.batch.JobLauncherDetails.java

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/**
 * Most of the code in the Qalingo project is copyrighted Hoteia and licensed
 * under the Apache License Version 2.0 (release version 0.7.0)
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 *                   Copyright (c) Hoteia, 2012-2013
 * http://www.hoteia.com - http://twitter.com/hoteia - contact@hoteia.com
 *
 */
package fr.hoteia.qalingo.core.batch;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
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;

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;

    private DateFormat isoDateFormat = new SimpleDateFormat("yyyy-MM-dd' 'HH:mm:ss' 'z");

    /**
     * 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 context) {
        Map<String, Object> jobDataMap = context.getMergedJobDataMap();

        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();
        builder.addString("Exec ISO date", isoDateFormat.format(new Date()));

        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();
    }

}