filestore.java

来自「resetful样式的ws样例,一种面向资源的webservices服务」· Java 代码 · 共 95 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]"
 * 
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 * 
 * 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.atomserver.resources;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.UUID;

/**
 *
 * @author [e-mail]
 */
public class FileStore {
    public static final FileStore FS = new FileStore();

    public String getNextId() {
        return UUID.randomUUID().toString();
    }
    
    public boolean exists(String path) {
        return new File(path).exists();
    }
    
    public InputStream getFileContents(String path) {
        try {
            return new BufferedInputStream(new FileInputStream(path));
        } catch (FileNotFoundException e) {
            return null;
        }
    }
 
    public OutputStream getFileOutputStream(String path) throws IOException {
        File f = new File(path);
        f.getParentFile().mkdirs();
        return new BufferedOutputStream(new FileOutputStream(f));
    }
    
    public void deleteFile(String path) {
        new File(path).delete();
    }
    
    public void deleteDirectory(String path) {        
        File dir = new File(path);
        if (dir.isDirectory()) {
            for (File file : dir.listFiles()) {
                if (file.isFile()) {
                    file.delete();
                }
            }
        }
        dir.delete();
    }
}