A complete 3D game development suite written purely in Java.
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jmonkeyengine/engine/src/desktop/com/jme3/asset/plugins/UrlLocator.java

104 lines
3.5 KiB

/*
* Copyright (c) 2009-2010 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.plugins;
import com.jme3.asset.*;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* <code>UrlLocator</code> is a locator that combines a root URL
* and the given path in the AssetKey to construct a new URL
* that allows locating the asset.
* @author Kirill Vainer
*/
public class UrlLocator implements AssetLocator {
private static final Logger logger = Logger.getLogger(UrlLocator.class.getName());
private URL root;
private static class UrlAssetInfo extends AssetInfo {
private InputStream in;
public UrlAssetInfo(AssetManager manager, AssetKey key, InputStream in){
super(manager, key);
this.in = in;
}
@Override
public InputStream openStream() {
return in;
}
}
public void setRootPath(String rootPath) {
try {
this.root = new URL(rootPath);
} catch (MalformedURLException ex) {
throw new IllegalArgumentException("Invalid rootUrl specified", ex);
}
}
public AssetInfo locate(AssetManager manager, AssetKey key) {
String name = key.getName();
try{
URL url = new URL(root, name);
URLConnection conn = url.openConnection();
conn.setUseCaches(false);
conn.setDoOutput(false);
InputStream in;
try {
in = conn.getInputStream();
if (in == null)
return null;
} catch (FileNotFoundException ex){
return null;
}
return new UrlAssetInfo(manager, key, in);
}catch (IOException ex){
logger.log(Level.WARNING, "Error while locating " + name, ex);
return null;
}
}
}