itemdata.java

来自「resetful样式的ws样例,一种面向资源的webservices服务」· Java 代码 · 共 99 行

/*
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. 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://jersey.dev.java.net/CDDL+GPL.html
 * or jersey/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 jersey/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [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.jersey.samples.optimisticconcurrency;

import javax.ws.rs.core.MediaType;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;

/**
 *
 * @author [e-mail]
 */
public class ItemData {
    public static final JAXBContext CONTEXT = getContext();
    
    private static JAXBContext getContext() {
        try {
            return JAXBContext.newInstance(Item.class);
        } catch (JAXBException e) {
            e.printStackTrace();
        }
        
        return null;
    }
  
    public static ItemData ITEM = new ItemData();
        
    public int version = 0;
    
    public MediaType mediaType;
    
    public byte[] content = "Today is the first day of the REST of my life".getBytes();
    
    public ItemData() {
        mediaType = new MediaType("text", "plain");
    }
    
    public int getVersion() {
        return version;
    }
    
    public String getVersionAsString() {
        return Integer.toString(version);
    }
    
    public MediaType getMediaType() {
        return mediaType;
    }
    
    public byte[] getContent() {
        return content;
    }
    
    public void update(byte[] content) {
        update(new MediaType("application", "octet-stream"), content);
    }
    
    public synchronized void update(MediaType mediaType, byte[] content) {
        this.mediaType = mediaType;
        this.content = (content != null) ? content : new byte[0];
        version++;
    }
}