de.micromata.genome.chronos.util.ClassJobDefinition.java Source code

Introduction

Here is the source code for de.micromata.genome.chronos.util.ClassJobDefinition.java

Source

//
// Copyright (C) 2010-2016 Micromata GmbH
//
// 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 de.micromata.genome.chronos.util;

import java.util.Map;

import org.apache.commons.beanutils.BeanUtils;
import org.apache.commons.lang3.StringUtils;

import de.micromata.genome.chronos.FutureJob;
import de.micromata.genome.chronos.JobDefinition;
import de.micromata.genome.chronos.SchedulerException;
import de.micromata.genome.logging.GenomeLogCategory;
import de.micromata.genome.logging.LogLevel;
import de.micromata.genome.logging.LoggedRuntimeException;

/**
 * The Class ClassJobDefinition.
 *
 * @author Roger Rene Kommer (r.kommer.extern@micromata.de)
 */
public class ClassJobDefinition implements JobDefinition {

    /**
     * The class to start.
     */
    private final Class<? extends FutureJob> classToStart;

    /**
     * The bean properties.
     */
    private Map<String, Object> beanProperties = null;

    /**
     * Gets the bean properties.
     *
     * @return the bean properties
     */
    public Map<String, Object> getBeanProperties() {
        return beanProperties;
    }

    /**
     * Sets the bean properties.
     *
     * @param beanProperties the bean properties
     */
    public void setBeanProperties(Map<String, Object> beanProperties) {
        this.beanProperties = beanProperties;
    }

    /**
     * Instantiates a new class job definition.
     *
     * @param classNameToStart the class name to start
     */
    @SuppressWarnings("unchecked")
    public ClassJobDefinition(final String classNameToStart) {
        try {
            classToStart = (Class<? extends FutureJob>) Class.forName(StringUtils.trim(classNameToStart));
        } catch (Exception ex) {
            throw new RuntimeException("Failure loading class in ClassJobDefinition: " + ex.getMessage(), ex);
        }
    }

    /**
     * Instantiates a new class job definition.
     *
     * @param classToStart the class to start
     */
    public ClassJobDefinition(final Class<? extends FutureJob> classToStart) {
        this.classToStart = classToStart;
    }

    /**
     * Populate.
     *
     * @param fj the fj
     */
    protected void populate(FutureJob fj) {
        if (beanProperties != null) {
            try {
                BeanUtils.populate(fj, beanProperties);
            } catch (Exception ex) {
                /**
                 * @logging
                 * @reason Die JobFactory konnte die bean properties nicht setzen
                 * @action TechAdmin kontaktieren
                 */
                throw new LoggedRuntimeException(ex, LogLevel.Error, GenomeLogCategory.Scheduler,
                        "Cannot populate properties for bean: " + fj.getClass().getName() + ": " + ex.getMessage());
            }
        }
    }

    /**
     * Creates the instance.
     *
     * @return the future job
     */
    protected FutureJob createInstance() {
        FutureJob futureJob;
        try {
            futureJob = classToStart.newInstance();
        } catch (final InstantiationException ex) {
            throw new SchedulerException(ex);
        } catch (final IllegalAccessException ex) {
            throw new SchedulerException(ex);
        }
        return futureJob;
    }

    /**
     * {@inheritDoc}
     *
     */

    @Override
    public FutureJob getInstance() {
        FutureJob fj = createInstance();
        populate(fj);
        return fj;
    }

    /**
     * {@inheritDoc}
     *
     */

    @Override
    public String toString() {
        return "JobDefinition[class=" + classToStart.getCanonicalName() + "]";
    }
}