/*
* Copyright (c) 2009-2012 jMonkeyEngine
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.asset;
import java.io.IOException;
import java.io.InputStream;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.Locale;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* <code>AssetConfig</code> loads a config file to configure the asset manager.
* <br/><br/>
* The config file is specified with the following format:
* <code>
* "INCLUDE" <path>
* "LOADER" <class> : (<extension> ",")* <extension>
* "LOCATOR" <path> <class>
* </code>
*
* @author Kirill Vainer
*/
public final class AssetConfig {
private static final Logger logger = Logger.getLogger(AssetConfig.class.getName());
private AssetConfig() { }
private static Class acquireClass(String name) {
try {
return Class.forName(name);
} catch (ClassNotFoundException ex) {
return null;
}
}
public static void loadText(AssetManager assetManager, URL configUrl) throws IOException{
InputStream in = configUrl.openStream();
try {
Scanner scan = new Scanner(in, "UTF-8");
scan.useLocale(Locale.US); // Fix commas / periods ??
while (scan.hasNext()){
String cmd = scan.next();
if (cmd.equals("LOADER")){
String loaderClass = scan.next();
String colon = scan.next();
if (!colon.equals(":")){
throw new IOException("Expected ':', got '"+colon+"'");
}
String extensionsList = scan.nextLine();
String[] extensions = extensionsList.split(",");
for (int i = 0; i < extensions.length; i++){
extensions[i] = extensions[i].trim();
}
Class clazz = acquireClass(loaderClass);
if (clazz != null) {
assetManager.registerLoader(clazz, extensions);
} else {
logger.log(Level.WARNING, "Cannot find loader {0}", loaderClass);
}
} else if (cmd.equals("LOCATOR")) {
String rootPath = scan.next();
String locatorClass = scan.nextLine().trim();
Class clazz = acquireClass(locatorClass);
if (clazz != null) {
assetManager.registerLocator(rootPath, clazz);
} else {
logger.log(Level.WARNING, "Cannot find locator {0}", locatorClass);
}
} else if (cmd.equals("INCLUDE")) {
String includedCfg = scan.nextLine().trim();
URL includedCfgUrl = Thread.currentThread().getContextClassLoader().getResource(includedCfg);
if (includedCfgUrl != null) {
loadText(assetManager, includedCfgUrl);
} else {
logger.log(Level.WARNING, "Cannot find config include {0}", includedCfg);
}
} else if (cmd.trim().startsWith("#")) {
scan.nextLine();
continue;
} else {
throw new IOException("Expected command, got '" + cmd + "'");
}
}
} finally {
if (in != null) in.close();
}
}
}