Glassfish example source code file (ASMainEquinox.java)

This example Glassfish source code file (ASMainEquinox.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Glassfish tags/keywords

asmainequinox, class, eclipse, file, file, illegalaccessexception, io, ioexception, ioexception, osgi, reflection, runtimeexception, runtimeexception, string, string, thread

The Glassfish ASMainEquinox.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2007-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 * recipient has the option to distribute your version of this file under
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 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
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 */

package com.sun.enterprise.glassfish.bootstrap;

import org.kohsuke.MetaInfServices;

import java.io.File;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import com.sun.enterprise.module.bootstrap.PlatformMain;

/**
 * Main class to launch GlassFish on Equinox (non-embedded)
 * use GlassFish on Equinox at your risk.
 *
 * @author Sanjeeb.Sahoo@Sun.COM
 */
@MetaInfServices(PlatformMain.class)
public class ASMainEquinox extends ASMainOSGi {
    /* if equinox is installed under glassfish/eclipse this would be the
     *  glassfish/eclipse/plugins dir that contains the equinox jars
     *  can be null
     * */
    private static File pluginsDir=null;

    protected String getPreferedCacheDir() {
        return "osgi-cache/equinox/";
    }

    public String getName() {
        return Constants.Platform.Equinox.toString();
    }

    protected void setFwDir() {
        String fwPath = System.getenv("EQUINOX_HOME");
        if (fwPath == null) {
            fwPath = new File(glassfishDir, "osgi/equinox").getAbsolutePath();
        }
        fwDir = new File(fwPath);
        if (!fwDir.exists()) {
            fwDir = new File(glassfishDir, "osgi/eclipse");
        }
        if (fwDir.exists()){//default Eclipse equinox structure from a equinoz zip distro
            pluginsDir = new File(fwDir,"plugins");
            if (!pluginsDir.exists()){
                pluginsDir =null;//no luck
            }
        }

        if (!fwDir.exists()) {
            throw new RuntimeException("Can't locate Equinox at " + fwPath);
        }
    }

    protected void addFrameworkJars(ClassPathBuilder cpb) throws IOException {
        // Add all the jars to classpath for the moment, since the jar name
        // is not a constant.
       if (pluginsDir!=null) {
            cpb.addGlob(pluginsDir, "org.eclipse.osgi_*.jar");

        } else {
            cpb.addJarFolder(fwDir);
        }
    }

    private File getSettingsFile() {
        File settings = new File(fwDir, "configuration");
        return new File(settings, "config.ini");
    }

    private void setUpCache() throws IOException {
        File cacheDir = getCacheDir();

        // Refer to http://help.eclipse.org/help32/index.jsp?topic=/org.eclipse.platform.doc.isv/reference/misc/index.html
        // for details about the configuration options used here.
        // Starting with version 3.5.1, Equinox understands standard OSGi property
        // org.osgi.framework.storage to configure cache dir, but it is not used by the
        // launcher that we use. SO, we still use the old property.
        System.setProperty("osgi.configuration.area", cacheDir.getCanonicalPath());

        // I need to copy the configuration from our eclipse directory into
        // the cache so equinox use that as its caching directory. Otherwise, it uses
        // configuration dir as the cache dir.
        File settings = getSettingsFile();
        if (!cacheDir.exists() && !cacheDir.mkdirs()) {
            throw new RuntimeException("Not able to create " + cacheDir.getAbsolutePath());
        }
        Util.copyFile(settings, new File(cacheDir, "config.ini"));
    }

    protected void launchOSGiFW() throws Exception {
        setUpCache();
        Class mc = launcherCL.loadClass(getFWMainClassName());
        final String[] args = new String[0];
        final Method m = mc.getMethod("main", new Class[]{args.getClass()});
        Thread launcherThread = new Thread(new Runnable() {
            public void run() {
                try {
                    m.invoke(null, new Object[]{args});
                } catch (IllegalAccessException e) {
                    throw new RuntimeException(e);
                } catch (InvocationTargetException e) {
                    throw new RuntimeException(e);
                }
            }
        }, "OSGi Framework Launcher");
        launcherThread.setDaemon(false);
        launcherThread.start();
    }

    private String getFWMainClassName() {
        return "org.eclipse.core.runtime.adaptor.EclipseStarter";
    }

}