com.sun.tools.xjc.reader.dtd.bindinfo.SAXContentHandlerEx.java Source code

Introduction

Here is the source code for com.sun.tools.xjc.reader.dtd.bindinfo.SAXContentHandlerEx.java

Source

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 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.tools.xjc.reader.dtd.bindinfo;

import org.dom4j.DocumentFactory;
import org.dom4j.ElementHandler;
import org.dom4j.ElementPath;
import org.dom4j.io.SAXContentHandler;
import org.xml.sax.Locator;

/**
 * dom4j SAXReader with an extension that
 * adds source location information as attributes.
 * 
 * <p>
 * Added location information can be retrieved by calling
 * using {@link DOM4JLocator#getLocationInfo()}.
 */
class SAXContentHandlerEx extends SAXContentHandler {
    /**
     * Call this method to create a new instance of SAXContentHandlerEx.
     * Because of the restriction of dom4j,
     * we need a bit complicated boot strapping.
     */
    public static SAXContentHandlerEx create() {
        return new SAXContentHandlerEx(new Locator[1]);
    }

    private final Locator[] loc;

    private SAXContentHandlerEx(Locator[] loc) {
        super(DocumentFactory.getInstance(), new MyElementHandler(loc));
        this.loc = loc;
    }

    public void setDocumentLocator(Locator _loc) {
        loc[0] = _loc;
        super.setDocumentLocator(_loc);
    }

    static class MyElementHandler implements ElementHandler {
        private final Locator[] loc;

        MyElementHandler(Locator[] loc) {
            this.loc = loc;
        }

        public void onStart(ElementPath path) {
            // sets location information to elements
            DOM4JLocator.setLocationInfo(path.getCurrent(), loc[0]);
        }

        public void onEnd(ElementPath path) {
        }
    }
}