159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/* 259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Copyright (c) 2009-2010 jMonkeyEngine 359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * All rights reserved. 459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Redistribution and use in source and binary forms, with or without 659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * modification, are permitted provided that the following conditions are 759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * met: 859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Redistributions of source code must retain the above copyright 1059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * notice, this list of conditions and the following disclaimer. 1159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 1259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Redistributions in binary form must reproduce the above copyright 1359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * notice, this list of conditions and the following disclaimer in the 1459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * documentation and/or other materials provided with the distribution. 1559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 1659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 1759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * may be used to endorse or promote products derived from this software 1859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * without specific prior written permission. 1959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 2059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 2259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 2359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 2459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 2559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 2659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 2759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 2859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 2959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 3059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 3259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3359b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapackage com.jme3.asset; 3459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.export.*; 3659b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.io.IOException; 3759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.util.LinkedList; 3859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/** 4059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * <code>AssetKey</code> is a key that is used to 4159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * look up a resource from a cache. 4259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * This class should be immutable. 4359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 4459b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapublic class AssetKey<T> implements Savable { 4559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 4659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected String name; 4759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected transient String folder; 4859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected transient String extension; 4959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public AssetKey(String name){ 5159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.name = reducePath(name); 5259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.extension = getExtension(this.name); 5359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 5459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public AssetKey(){ 5659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 5759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected static String getExtension(String name){ 5959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int idx = name.lastIndexOf('.'); 6059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta //workaround for filenames ending with xml and another dot ending before that (my.mesh.xml) 6159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (name.toLowerCase().endsWith(".xml")) { 6259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta idx = name.substring(0, idx).lastIndexOf('.'); 6359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (idx == -1) { 6459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta idx = name.lastIndexOf('.'); 6559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 6659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 6759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (idx <= 0 || idx == name.length() - 1) 6859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return ""; 6959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta else 7059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return name.substring(idx+1).toLowerCase(); 7159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 7259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 7359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected static String getFolder(String name){ 7459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int idx = name.lastIndexOf('/'); 7559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (idx <= 0 || idx == name.length() - 1) 7659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return ""; 7759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta else 7859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return name.substring(0, idx+1); 7959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 8059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public String getName() { 8259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return name; 8359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 8459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 8659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @return The extension of the <code>AssetKey</code>'s name. For example, 8759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * the name "Interface/Logo/Monkey.png" has an extension of "png". 8859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 8959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public String getExtension() { 9059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return extension; 9159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 9259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 9359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public String getFolder(){ 9459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (folder == null) 9559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta folder = getFolder(name); 9659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 9759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return folder; 9859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 9959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 10059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 10159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Do any post-processing on the resource after it has been loaded. 10259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param asset 10359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 10459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public Object postProcess(Object asset){ 10559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return asset; 10659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 10759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 10859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 10959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Create a new instance of the asset, based on a prototype that is stored 11059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * in the cache. Implementations are allowed to return the given parameter 11159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * as-is if it is considered that cloning is not necessary for that particular 11259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * asset type. 11359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 11459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param asset The asset to be cloned. 11559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @return The asset, possibly cloned. 11659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 11759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public Object createClonedInstance(Object asset){ 11859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return asset; 11959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 12059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 12159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 12259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @return True if the asset for this key should be cached. Subclasses 12359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * should override this method if they want to override caching behavior. 12459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 12559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public boolean shouldCache(){ 12659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return true; 12759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 12859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 12959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 13059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @return Should return true, if the asset objects implement the "Asset" 13159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * interface and want to be removed from the cache when no longer 13259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * referenced in user-code. 13359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 13459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public boolean useSmartCache(){ 13559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return false; 13659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 13759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 13859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 13959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Removes all relative elements of a path (A/B/../C.png and A/./C.png). 14059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param path The path containing relative elements 14159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @return A path without relative elements 14259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 14359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static String reducePath(String path) { 14459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (path == null || path.indexOf("./") == -1) { 14559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return path; 14659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 14759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta String[] parts = path.split("/"); 14859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta LinkedList<String> list = new LinkedList<String>(); 14959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < parts.length; i++) { 15059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta String string = parts[i]; 15159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (string.length() == 0 || string.equals(".")) { 15259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta //do nothing 15359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else if (string.equals("..")) { 15459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (list.size() > 0) { 15559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta list.removeLast(); 15659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else { 15759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new IllegalStateException("Relative path is outside assetmanager root!"); 15859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 15959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else { 16059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta list.add(string); 16159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 16259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 16359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta StringBuilder builder = new StringBuilder(); 16459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < list.size(); i++) { 16559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta String string = list.get(i); 16659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (i != 0) { 16759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta builder.append("/"); 16859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 16959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta builder.append(string); 17059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 17159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return builder.toString(); 17259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 17359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 17459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta @Override 17559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public boolean equals(Object other){ 17659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (!(other instanceof AssetKey)){ 17759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return false; 17859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 17959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return name.equals(((AssetKey)other).name); 18059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 18159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 18259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta @Override 18359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public int hashCode(){ 18459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return name.hashCode(); 18559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 18659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 18759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta @Override 18859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public String toString(){ 18959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return name; 19059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 19159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 19259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void write(JmeExporter ex) throws IOException { 19359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta OutputCapsule oc = ex.getCapsule(this); 19459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta oc.write(name, "name", null); 19559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 19659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 19759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void read(JmeImporter im) throws IOException { 19859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta InputCapsule ic = im.getCapsule(this); 19959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta name = reducePath(ic.readString("name", null)); 20059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta extension = getExtension(name); 20159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 20259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 20359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta} 204