xmldocument.java

jxme的一些相关程序,主要是手机上程序开发以及手机和计算机通信的一些程序资料,程序编译需要Ant支持

/*
 * $Id: XMLDocument.java,v 1.2 2002/03/04 21:42:56 echtcherbina Exp $
 ********************
 *
 * Copyright (c) 2001 Sun Microsystems, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *       Sun Microsystems, Inc. for Project JXTA."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact Project JXTA at http://www.jxta.org.
 *
 * 5. Products derived from this software may not be called "JXTA",
 *    nor may "JXTA" appear in their name, without prior written
 *    permission of Sun.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL SUN MICROSYSTEMS OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of Project JXTA.  For more
 * information on Project JXTA, please see
 * <http://www.jxta.org/>.
 *
 * This license is based on the BSD license adopted by the Apache Foundation.
 ********************
 */

package net.jxta.impl.document;

import java.io.*;
import java.lang.reflect.Constructor;
import java.lang.String;
import java.util.Enumeration;
import java.util.Vector;

import java.io.IOException;
//PDA requirements 19.02.2002
//class java.lang.reflect.UndeclaredThrowableException did not exist in jdk 1.1.8
//it was change to its super class java.lang.RuntimeException
//import java.lang.reflect.UndeclaredThrowableException;
import java.lang.RuntimeException;
//PDA requirements 19.02.2002
import java.util.NoSuchElementException;

import javax.xml.parsers.*;

import org.xml.sax.*;
import org.w3c.dom.*;
import org.w3c.dom.traversal.*;

import org.apache.xerces.dom.DocumentImpl;
import org.apache.xml.serialize.OutputFormat;
import org.apache.xml.serialize.Serializer;
import org.apache.xml.serialize.XMLSerializer;

import net.jxta.document.MimeMediaType;
import net.jxta.document.StructuredDocument;
import net.jxta.document.StructuredDocumentFactory;
import net.jxta.document.StructuredTextDocument;
import net.jxta.document.TextElement;

/**
 * This class is an implementation of the StructuredDocument interface using
 * an XML parser
 * @version     $Revision: 1.2 $
 * @since       JXTA 1.0
 */
public class XMLDocument extends XMLElement implements TextDocumentCommon {

    public final static class Instantiator implements net.jxta.document.StructuredDocumentFactory.Instantiator {

        /**
         *  The MIME Media Types which this <CODE>StructuredDocument</CODE> is
         *  capable of emitting.
         */
        private static final MimeMediaType [] myTypes = {
            new MimeMediaType( "Text", "Xml" ),
            new MimeMediaType( "Application", "Xml" )
        };

        // these are the file extensions which are likely to contain files of
        // the type i like.
        private static final StructuredDocumentFactory.Instantiator.ExtensionMapping [] myExtensions = {
            new StructuredDocumentFactory.Instantiator.ExtensionMapping( "xml", myTypes[0] ),
            new StructuredDocumentFactory.Instantiator.ExtensionMapping( "xml", null )
        };

        /** Creates new LiteXMLDocumentInstantiator */
        public Instantiator() {
        }

        /**
         * Returns the MIME Media types supported by this this Document per
         * {@link <a href=http://www.ietf.org/rfc/rfc2046.txt">IETF RFC 2046 <i>MIME : Media Types</i></a>}.
         *
         * Jxta does not currently support the 'Multipart' or 'Message' media types.
         *
         * @return An array of MimeMediaType objects containing the MIME Media Type
         * for this Document.
         *
         */
        public MimeMediaType[] getSupportedMimeTypes() {
            return( myTypes );
        }

        /**
         * Returns the file extension types supported by this this Document.
         *
         * @return An array of string objects containing file extensions
         *
         */
        public StructuredDocumentFactory.Instantiator.ExtensionMapping[] getSupportedFileExtensions() {
            return( myExtensions );
        }

        /**
         * Create a new structured document of the type specified by doctype.
         *
         * @param  mimeType    The mimetype to be associated with this instance.
         *     the base type must be one of the types returned by <tt>getSupportedMimeTypes</tt>.
         *     Some implementations may accept parameters in the params section of the mimetype.
         * @param  doctype     Type for the base node of the document.
         * @return StructuredDocument instance.
         */
        public StructuredDocument newInstance(MimeMediaType mimeType, String doctype) {
            return new XMLDocument( mimeType, doctype );
        }

        /**
         * Create a new structured document of the type specified by doctype.
         *
         * @param  mimeType    The mimetype to be associated with this instance.
         *     the base type must be one of the types returned by <tt>getSupportedMimeTypes</tt>.
         *     Some implementations may accept parameters in the params section of the mimetype.
         * @param  doctype     Type for the base node of the document.
         * @param  value     value for the base node of the document.
         * @return StructuredDocument instance.
         */
        public StructuredDocument newInstance(MimeMediaType mimeType, String doctype, String value) {
            return new XMLDocument( mimeType, doctype, value );
        }

        /**
         * Create a structured document from a stream containing an appropriately serialized
         * instance of the same document.
         *
         * @param  mimeType    The mimetype to be associated with this instance.
         *     the base type must be one of the types returned by <tt>getSupportedMimeTypes</tt>.
         *     Some implementations may accept parameters in the params section of the mimetype.
         * @param  source     Inputstream from which to read the instance.
         * @return StructuredDocument instance.
         * @exception  IOException occurs when there is a problem with the source input stream.
         */
        public StructuredDocument newInstance(MimeMediaType mimeType, InputStream source) throws IOException {
            return new XMLDocument( mimeType, source );
        }
    };

    public static final Instantiator INSTANTIATOR = new Instantiator();

    private MimeMediaType mimeType;

    /**
     * Constructor for new instances of <CODE>XMLDocument</CODE>
     * with a value for the root element.
     *
     * @param mimeType This is the MIME Media Type being requested. In general
     * it should be equivalent with the MIME Media Type returned by
     * {@link #getMimeType()}. A <CODE>StructuredDocument</CODE>
     * sub-class may, however, support more than one MIME Media type so this may be a
     * true parameter. XMLDocument supports additional the MIME Media Type parameters,
     * "charset". The charset parameter must be a value per IETF RFC 2279 or ISO-10646.
     * @param docType Used as the root type of this document. {@link XMLDocument} uses this as the XML
     * <CODE>DOCTYPE</CODE>.
     * @param value String value to be associated with the root element.
     * null if none is wanted.
     *
     * @throws RuntimeException Exceptions generated by the underlying implementation.
     */
    public XMLDocument( final MimeMediaType mimeType, final String docType, final String value ) {
        super( null, null );
        this.root = this;

        this.mimeType = (MimeMediaType) mimeType.clone();

        DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
        docBuilderFactory.setNamespaceAware(true);
        docBuilderFactory.setValidating(false);
        try {
            DocumentBuilder dataDocBuilder = docBuilderFactory.newDocumentBuilder();
            org.w3c.dom.Document tempdoc = dataDocBuilder.newDocument();

            org.w3c.dom.DOMImplementation domImpl = tempdoc.getImplementation();
            org.w3c.dom.DocumentType doctypeNode = domImpl.createDocumentType( docType, null, null );