litexmldocument.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: LiteXMLDocument.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.BufferedWriter;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.StringReader;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.reflect.Constructor;
import java.lang.String;
import java.util.Enumeration;
import java.util.Vector;

import java.io.IOException;

import net.jxta.endpoint.MessageElement;

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
 * a simplified XML implementation
 *
 * @version     $Revision: 1.2 $
 * @since       JXTA 1.0
 */
public class LiteXMLDocument extends LiteXMLElement implements TextDocumentCommon {

    public static class Instantiator implements StructuredDocumentFactory.Instantiator {

        // "x-" is a mime-type convention for indicating partial or provisional
        // compliance to a standard
        private static final MimeMediaType [] myTypes = {
            new MimeMediaType( "Text", "Xml" ),
            new MimeMediaType( "Text", "x-Xml" ),
            new MimeMediaType( "Application", "Xml" ),
            new MimeMediaType( "Application", "x-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", (MimeMediaType) 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>}.
         *
         * <p/>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 and
         *  which mime-type should be used for that extension
         *
         * @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 LiteXMLDocument( 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 LiteXMLDocument( 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 LiteXMLDocument( mimeType, source );
        }

    };

    private static final String JXTA_NAMESPACE = "http://jxta.org";

    public static final Instantiator INSTANTIATOR = new Instantiator();

    String docContent = null;

    private MimeMediaType mimeType = null;

    /** Creates new LiteXMLDocument */
    public LiteXMLDocument( MimeMediaType mimeType, String type) {
        super( null, (LiteXMLElement.tagRange) null );
        // FIXME [e-mail] 20010227 This is not correct wrt charset encodings.
        String[] tag = MessageElement.parseName(type);
        String xmlns = "";
        if (!tag[0].equals(""))
            xmlns = " xmlns:" + tag[0] + "=\"" + JXTA_NAMESPACE + "\"";
        init( mimeType, new InputStreamReader(new ByteArrayInputStream( ("<?xml version=\"1.0\"?>\n\n<!DOCTYPE " + type + ">\n\n" + "<" + type + xmlns + ">\n" + "</" + type + ">\n").getBytes()) ));
    }

    /** Creates new LiteXMLDocument with a textValue in the root element */
    public LiteXMLDocument( MimeMediaType mimeType, String type,
    String textValue) {
        super( null, (LiteXMLElement.tagRange) null );

        // FIXME [e-mail] 20010227 This is not correct wrt charset encodings.
        String[] tag = MessageElement.parseName(type);
        String xmlns = "";
        if (!tag[0].equals(""))
            xmlns = " xmlns:" + tag[0] + "=\"" + JXTA_NAMESPACE + "\"";
        init( mimeType,
        new InputStreamReader(new ByteArrayInputStream
        ( new String( "<?xml version=\"1.0\"?>\n\n<!DOCTYPE " + type
        + ">\n\n"
        + "<" + type + xmlns + ">\n"
        + textValue
        + "</" + type + ">\n" ).getBytes()
        ) ));
    }

    /** Creates new LiteXMLDocument */
    public LiteXMLDocument( MimeMediaType mimeType, InputStream in ) {
        super( null, (LiteXMLElement.tagRange) null );
        init( mimeType, new InputStreamReader( in ) );
    }

    public LiteXMLDocument( MimeMediaType mimeType, Reader in ) {
        super( null, (LiteXMLElement.tagRange) null );