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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010-2011 Oracle and/or its affiliates. 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
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/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 packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
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 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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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 [email protected]
 */
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();
    }
}