/* * 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 THE APACHE SOFTWARE FOUNDATION 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. * * $Id: ContentAdvertisement.java,v 1.9 2002/04/26 16:12:21 rmjohnson Exp $ * */package net.jxta.share;import net.jxta.share.metadata.ContentMetadata;import net.jxta.document.Advertisement;import net.jxta.document.Document;import net.jxta.id.ID;import net.jxta.document.StructuredDocument;import net.jxta.document.Element;import net.jxta.document.MimeMediaType;import java.io.Serializable;/** * A ContentAdvertisement contains information about shared content * within a peer group. */public abstract class ContentAdvertisement    extends Advertisement implements Serializable{    /** Name of the document element containing the name of the     * content.     */    public static final String EN_NAME = "name";        /** Name of the document element containing the content id. */    public static final String EN_CID = "cid";        /** Name of the document element containing the type of the     * content.     */    public static final String EN_TYPE = "type";        /** Name of the document element containing the length of the     * content.     */    public static final String EN_LENGTH = "length";        /** Name of the document element containing the description of the     * content.     */    public static final String EN_DESCRIPTION = "description";        /** Name of the document element containing any other metadata     * describing the content.     */    public static final String EN_METADATA = "metadata";        /** Name of the document element containing the address of the     * CMS service that is sharing the content.     */    public static final String EN_ADDRESS = "address";    /**     * Returns the advertisement type     */    public static String getAdvertisementType() {	return "jxta:ContentAdvertisement";    }    /**     * Appends this advertisement document to the specified structured     * document element.     */    public abstract void appendDocument(StructuredDocument doc, Element el);    /**     * Returns the name of the content.     */    public abstract String getName();    /**     * Returns the id of the content.     */    public abstract ContentId getContentId();    /**     * Returns the length of the content, or -1 if not specified.     */    public abstract long getLength();    /**     * Returns the mime type of the content, or null if not specified.     */    public abstract String getType();    /**     * Returns the description of the content, or null if not specified.     */    public abstract String getDescription();    /**     * Returns the metadata describing this content, or null if not specified.     */    public abstract ContentMetadata[] getMetadata();    /**     * Returns the address of the CMS service that is sharing the content,     * or null if not specified.     */    public abstract String getAddress();	/**     * Returns the address of the CMS service that is sharing the content,     * or null if not specified.  This address should be an endpoint address     *  in the following format: <code>jxta://[peer id]/CMS/[peergroup name]</code>     * , specifying the id of the peer and name of peergroup in which the CMS service     * that is sharing the content is running.     */    public abstract void setAddress(String address);    /**     * Returns the document representation of this advertisement.     */    public abstract Document getDocument(MimeMediaType mtype);        public ID getID( ){            return null;    }}