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Glassfish example source code file (SaxParserHandlerFactory.java)

This example Glassfish source code file (SaxParserHandlerFactory.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

file, file, io, saxparserhandler, saxparserhandler, saxparserhandlerbundled, saxparserhandlerbundled, saxparserhandlerfactory, saxparserhandlerfactory, string

The Glassfish SaxParserHandlerFactory.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * 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:
 * 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:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * 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
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.enterprise.deployment.node;

import static com.sun.enterprise.util.SystemPropertyConstants.INSTALL_ROOT_PROPERTY;

import java.io.File;

/**
 *Provides the appropriate implementation depending on the current
 *runtime environment.
 *
 * @author tjquinn
 */
public class SaxParserHandlerFactory {
    
    /** Creates a new instance of SaxParserHandlerFactory */
    public SaxParserHandlerFactory() {
    }
    
    public static SaxParserHandler newInstance() {
        SaxParserHandler result = null;
        
        /*
         *If the property com.sun.aas.installRoot is defined, use the 
         *original implementation (SaxParserHandler) which fetches DTDs and
         *schemas from the installation directory tree.  Otherwise, assume that 
         *the app client container is running under Java Web Start. In that
         *case, there is no product installation directory (at least none can
         *be assumed).  The DTDs and schemas will be retrieved from the
         *JWS-specific jar file instead (SaxParserHandlerBundled).
         *
         *bnevins, Oct 16, 2008.  On Oct. 8, 2008 installRoot was changed to be setup
         *earlier in the startup.  As a result, Embedded GF broke.  It sets up a fake installRoot, 
         *because there is *no* install-root.
         *Improvement: don't just see if installRoot is set -- make sure installRoot
         *is bonafide.
          */ 
        
        if(installRootIsValid()) 
            result = new SaxParserHandler();
        else
            result = new SaxParserHandlerBundled();

        return result;
    }
    
    private static boolean installRootIsValid() {
        // In the context of this class, we need to make sure that we know if we 
        //have a route to local DTDs.  Period.
        
        String ir = System.getProperty(INSTALL_ROOT_PROPERTY);
        
        if(!ok(ir))
            return false;
        
        File dtds = new File(new File(ir), "lib/dtds");
        
        if(!dtds.isDirectory())
            return false;
        
        return true;
    }

    private static boolean ok(String ir) {
        return ir != null && ir.length() > 0;
    }
}

Other Glassfish examples (source code examples)

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