001/**
002 * ===================================================
003 * JCommon-Serializer : a free serialization framework
004 * ===================================================
005 *
006 * Project Info:  http://reporting.pentaho.org/jcommon-serializer/
007 *
008 * (C) Copyright 2006-2008, by Object Refinery Limited, Pentaho Corporation and Contributors.
009 *
010 * This library is free software; you can redistribute it and/or modify it under the terms
011 * of the GNU Lesser General Public License as published by the Free Software Foundation;
012 * either version 2.1 of the License, or (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
015 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
016 * See the GNU Lesser General Public License for more details.
017 *
018 * You should have received a copy of the GNU Lesser General Public License along with this
019 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
020 * Boston, MA 02111-1307, USA.
021 *
022 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
023 * in the United States and other countries.]
024 *
025 * ------------
026 * JCommonSerializerBoot
027 * ------------
028 */
029package org.jfree.serializer;
030
031import org.pentaho.reporting.libraries.base.boot.AbstractBoot;
032import org.pentaho.reporting.libraries.base.config.Configuration;
033import org.pentaho.reporting.libraries.base.versioning.ProjectInformation;
034
035/**
036 * The boot class guarantees a controlled initialization of the library.
037 *
038 * @author Thomas Morgner
039 */
040public class JCommonSerializerBoot extends AbstractBoot
041{
042  private static JCommonSerializerBoot instance;
043
044  /**
045   * Returns a singleton instance of the boot class.
046   *
047   * @return the singleton booter.
048   */
049  public static synchronized JCommonSerializerBoot getInstance()
050  {
051    if (instance == null)
052    {
053      instance = new JCommonSerializerBoot();
054    }
055    return instance;
056  }
057
058  /**
059   * Private constructor to prevent object creation.
060   */
061  private JCommonSerializerBoot()
062  {
063  }
064
065  /**
066   * Loads the configuration. This will be called exactly once.
067   *
068   * @return The configuration.
069   */
070  protected Configuration loadConfiguration()
071  {
072    return createDefaultHierarchicalConfiguration
073            ("/org/jfree/serializer/jcommon-serializer.properties",
074             "/jcommon-serializer.properties", true, JCommonSerializerBoot.class);
075  }
076
077  /**
078   * Performs the boot. This method is empty, as this library does not require any manual initializations. 
079   */
080  protected void performBoot()
081  {
082
083  }
084
085  /**
086   * Returns the project info.
087   *
088   * @return The project info.
089   */
090  protected ProjectInformation getProjectInfo()
091  {
092    return JCommonSerializerInfo.getInstance();
093  }
094}