Glassfish example source code file (DOLUtils.java)

This example Glassfish source code file (DOLUtils.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

application, arraylist, dolutils, dolutils, file, io, ioexception, list, list, log, logger, logger, logging, moduledescriptor, net, network, object, readablearchive, readablearchive, util

The Glassfish DOLUtils.java source code

/*
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 *
 * Copyright (c) 1997-2010 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:
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 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
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package com.sun.enterprise.deployment.util;

import com.sun.logging.LogDomains;

import java.util.logging.Logger;
import org.glassfish.deployment.common.DeploymentUtils;
import org.glassfish.loader.util.ASClassLoaderUtil;
import org.glassfish.api.deployment.archive.ReadableArchive;
import java.net.URL;
import java.util.List;
import java.util.ArrayList;
import java.util.jar.Manifest;
import java.io.File;
import java.io.IOException;
import com.sun.enterprise.deployment.BundleDescriptor;
import com.sun.enterprise.deployment.Application;
import com.sun.enterprise.deployment.util.ModuleDescriptor;


/**
 * Utility class for convenienve methods
 *
 * @author  Jerome Dochez
 * @version 
 */
public class DOLUtils {
    
    private static Logger logger=null;
    

    /** no need to creates new DOLUtils */
    private DOLUtils() {
    }

    /**
     * @return a logger to use in the DOL implementation classes
     */
    public static Logger getDefaultLogger() {
        if (logger==null) {
            logger = LogDomains.getLogger(DeploymentUtils.class, LogDomains.DPL_LOGGER);
        }
        return logger;
    }

    public static boolean equals(Object a, Object b) {
        return ((a == null && b == null) ||
                (a != null && a.equals(b)));
    }

    public static List<URL> getLibraryJars(BundleDescriptor bundleDesc, ReadableArchive archive) throws IOException {
        List<URL> libraryURLs = new ArrayList();

        // add libraries referenced through manifest
        libraryURLs.addAll(DeploymentUtils.getManifestLibraries(archive));

        ReadableArchive parentArchive = archive.getParentArchive();

        if (parentArchive == null || bundleDesc == null) {
            // ear level or standalone module
            return libraryURLs;
        }

        File appRoot = new File(parentArchive.getURI());

        ModuleDescriptor moduleDesc = ((BundleDescriptor)bundleDesc).getModuleDescriptor();
        Application app = ((BundleDescriptor)moduleDesc.getDescriptor()).getApplication();

        // add libraries jars inside application lib directory
        libraryURLs.addAll(ASClassLoaderUtil.getAppLibDirLibrariesAsList(
            appRoot, app.getLibraryDirectory(), null));

       return libraryURLs;
   } 

}