1 /* 2 * Copyright (c) 2009-2010 jMonkeyEngine 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 package com.jme3.asset.plugins; 34 35 import com.jme3.asset.*; 36 import java.io.File; 37 import java.io.IOException; 38 import java.io.InputStream; 39 import java.util.logging.Logger; 40 import java.util.zip.ZipEntry; 41 import java.util.zip.ZipFile; 42 43 /** 44 * <code>ZipLocator</code> is a locator that looks up resources in a .ZIP file. 45 * @author Kirill Vainer 46 */ 47 public class ZipLocator implements AssetLocator { 48 49 private ZipFile zipfile; 50 private static final Logger logger = Logger.getLogger(ZipLocator.class.getName()); 51 52 private class JarAssetInfo extends AssetInfo { 53 54 private final ZipEntry entry; 55 JarAssetInfo(AssetManager manager, AssetKey key, ZipEntry entry)56 public JarAssetInfo(AssetManager manager, AssetKey key, ZipEntry entry){ 57 super(manager, key); 58 this.entry = entry; 59 } 60 openStream()61 public InputStream openStream(){ 62 try{ 63 return zipfile.getInputStream(entry); 64 }catch (IOException ex){ 65 throw new AssetLoadException("Failed to load zip entry: "+entry, ex); 66 } 67 } 68 } 69 setRootPath(String rootPath)70 public void setRootPath(String rootPath) { 71 try{ 72 zipfile = new ZipFile(new File(rootPath), ZipFile.OPEN_READ); 73 }catch (IOException ex){ 74 throw new AssetLoadException("Failed to open zip file: " + rootPath, ex); 75 } 76 } 77 locate(AssetManager manager, AssetKey key)78 public AssetInfo locate(AssetManager manager, AssetKey key) { 79 String name = key.getName(); 80 ZipEntry entry = zipfile.getEntry(name); 81 if (entry == null) 82 return null; 83 84 return new JarAssetInfo(manager, key, entry); 85 } 86 87 } 88