    001    /* ========================================================================
    002     * JCommon : a free general purpose class library for the Java(tm) platform
    003     * ========================================================================
    004     *
    005     * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
    006     *
    007     * Project Info:  http://www.jfree.org/jcommon/index.html
    008     *
    009     * This library is free software; you can redistribute it and/or modify it
    010     * under the terms of the GNU Lesser General Public License as published by
    011     * the Free Software Foundation; either version 2.1 of the License, or
    012     * (at your option) any later version.
    013     *
    014     * This library is distributed in the hope that it will be useful, but
    015     * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
    016     * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
    017     * License for more details.
    018     *
    019     * You should have received a copy of the GNU Lesser General Public
    020     * License along with this library; if not, write to the Free Software
    021     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
    022     * USA.
    023     *
    024     * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
    025     * in the United States and other countries.]
    026     *
    027     * -------------
    028     * BaseBoot.java
    029     * -------------
    030     * (C)opyright 2004, by Thomas Morgner and Contributors.
    031     *
    032     * Original Author:  Thomas Morgner;
    033     * Contributor(s):   David Gilbert (for Object Refinery Limited);
    034     *
    035     * $Id: BaseBoot.java,v 1.8 2005/11/09 14:47:54 taqua Exp $
    036     *
    037     * Changes
    038     * -------
    039     * 07-Jun-2004 : Added source headers (DG);
    040     *
    041     */
    042
    043    package org.jfree.base;
    044
    045    import org.jfree.JCommon;
    046    import org.jfree.base.config.ModifiableConfiguration;
    047    import org.jfree.base.log.DefaultLogModule;
    048    import org.jfree.util.Configuration;
    049    import org.jfree.util.ObjectUtilities;
    050
    051    /**
    052     * The base boot class. This initializes the services provided by
    053     * JCommon.
    054     *
    055     * @author Thomas Morgner
    056     */
    057    public class BaseBoot extends AbstractBoot {
    058
    059        /**
    060         * Singleton instance.
    061         */
    062        private static BaseBoot singleton;
    063
    064        /**
    065         * The project info.
    066         */
    067        private BootableProjectInfo bootableProjectInfo;
    068
    069        /**
    070         * Default constructor (private).
    071         */
    072        private BaseBoot() {
    073            this.bootableProjectInfo = JCommon.INFO;
    074        }
    075
    076        /**
    077         * Returns the global configuration as modifiable configuration reference.
    078         *
    079         * @return the global configuration
    080         */
    081        public static ModifiableConfiguration getConfiguration() {
    082            return (ModifiableConfiguration) getInstance().getGlobalConfig();
    083        }
    084
    085        /**
    086         * Returns the global configuration for JFreeReport.
    087         * <p/>
    088         * In the current implementation, the configuration has no properties defined, but
    089         * references a parent configuration that: <ul> <li>copies across all the
    090         * <code>System</code> properties to use as report configuration properties (obviously
    091         * the majority of them will not apply to reports);</li> <li>itself references a parent
    092         * configuration that reads its properties from a file <code>jfreereport.properties</code>.
    093         * </ul>
    094         *
    095         * @return the global configuration.
    096         */
    097        protected synchronized Configuration loadConfiguration() {
    098            return createDefaultHierarchicalConfiguration
    099                ("/org/jfree/base/jcommon.properties",
    100                 "/jcommon.properties", true);
    101        }
    102
    103        /**
    104         * Returns the boot instance.
    105         *
    106         * @return The boot instance.
    107         */
    108        public static synchronized AbstractBoot getInstance() {
    109            if (singleton == null) {
    110                singleton = new BaseBoot();
    111            }
    112            return singleton;
    113        }
    114
    115        /**
    116         * Performs the boot process.
    117         */
    118        protected void performBoot() {
    119            // configure the classloader from the properties-file.
    120            ObjectUtilities.setClassLoaderSource
    121                    (getConfiguration().getConfigProperty("org.jfree.ClassLoader"));
    122
    123            getPackageManager().addModule(DefaultLogModule.class.getName());
    124            getPackageManager().load("org.jfree.base.");
    125            getPackageManager().initializeModules();
    126        }
    127
    128        /**
    129         * Returns the project info.
    130         *
    131         * @return The project info.
    132         */
    133        protected BootableProjectInfo getProjectInfo() {
    134            return this.bootableProjectInfo;
    135        }
    136    }