com.npower.dm.setup.task.ManufacturerTask.java Source code

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Here is the source code for com.npower.dm.setup.task.ManufacturerTask.java

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/**
  * $Header: /home/master/nWave-DM-Common/src/com/npower/dm/setup/task/ManufacturerTask.java,v 1.2 2008/11/24 10:46:56 zhao Exp $
  * $Revision: 1.2 $
  * $Date: 2008/11/24 10:46:56 $
  *
  * ===============================================================================================
  * License, Version 1.1
  *
  * Copyright (c) 1994-2007 NPower Network Software Ltd.  All rights reserved.
  *
  * This SOURCE CODE FILE, which has been provided by NPower as part
  * of a NPower product for use ONLY by licensed users of the product,
  * includes CONFIDENTIAL and PROPRIETARY information of NPower.
  *
  * USE OF THIS SOFTWARE IS GOVERNED BY THE TERMS AND CONDITIONS
  * OF THE LICENSE STATEMENT AND LIMITED WARRANTY FURNISHED WITH
  * THE PRODUCT.
  *
  * IN PARTICULAR, YOU WILL INDEMNIFY AND HOLD NPower, ITS RELATED
  * COMPANIES AND ITS SUPPLIERS, HARMLESS FROM AND AGAINST ANY CLAIMS
  * OR LIABILITIES ARISING OUT OF THE USE, REPRODUCTION, OR DISTRIBUTION
  * OF YOUR PROGRAMS, INCLUDING ANY CLAIMS OR LIABILITIES ARISING OUT OF
  * OR RESULTING FROM THE USE, MODIFICATION, OR DISTRIBUTION OF PROGRAMS
  * OR FILES CREATED FROM, BASED ON, AND/OR DERIVED FROM THIS SOURCE
  * CODE FILE.
  * ===============================================================================================
  */
package com.npower.dm.setup.task;

import java.io.File;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.npower.dm.core.Manufacturer;
import com.npower.dm.management.ManagementBeanFactory;
import com.npower.dm.management.ModelBean;
import com.npower.setup.core.SetupException;

/**
 * @author Zhao DongLu
 * @version $Revision: 1.2 $ $Date: 2008/11/24 10:46:56 $
 */
public class ManufacturerTask extends DMTask {
    private Log log = LogFactory.getLog(ManufacturerTask.class);

    /**
     * Default constructor
     */
    public ManufacturerTask() {
        super();
    }

    private List<String> getFilenames() {
        return this.getPropertyValues("import.files");
    }

    /**
     * @param item
     * @param manufactuer
     */
    private void copy(ManufacturerItem item, Manufacturer manufactuer) {
        manufactuer.setExternalId(item.getExternalID());
        manufactuer.setName(item.getName());
        manufactuer.setDescription(item.getDescription());
    }

    /* (non-Javadoc)
     * @see com.npower.setup.core.AbstractTask#process()
     */
    @Override
    protected void process() throws SetupException {
        List<String> filenames = this.getFilenames();
        ManagementBeanFactory factory = null;
        try {
            factory = this.getManagementBeanFactory();
            ModelBean modelBean = factory.createModelBean();

            factory.beginTransaction();
            for (String filename : filenames) {
                // Process the file, and import data into database.
                File file = new File(filename);
                if (!file.isAbsolute()) {
                    file = new File(this.getSetup().getWorkDir(), filename);
                }
                List<ManufacturerItem> items = this.loadManufacturerItems(file.getAbsolutePath());
                for (ManufacturerItem item : items) {
                    Manufacturer manufacturer = modelBean.getManufacturerByExternalID(item.getExternalID());
                    if (manufacturer == null) {
                        // Create a new manufacturer.
                        manufacturer = modelBean.newManufacturerInstance();
                        log.info("Create a new manufacturer: " + item.getExternalID());
                    } else {
                        log.info("Modify a manufacturer: " + item.getExternalID());
                    }
                    this.copy(item, manufacturer);
                    modelBean.update(manufacturer);
                }
            }
            factory.commit();

        } catch (Exception ex) {
            if (factory != null) {
                factory.rollback();
            }
            throw new SetupException("Error in import manufacturers.", ex);
        } finally {
            if (factory != null) {
                factory.release();
            }
        }
    }

    /* (non-Javadoc)
     * @see com.npower.setup.core.AbstractTask#rollback()
     */
    @Override
    protected void rollback() throws SetupException {
        // TODO Auto-generated method stub

    }

}