/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.openejb.util;
import org.apache.openejb.EnvProps;
import org.apache.openejb.loader.FileUtils;
import org.apache.openejb.loader.IO;
import org.apache.openejb.loader.SystemInstance;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.Enumeration;
import java.util.Collections;
import java.util.ArrayList;
/**
* @version $Rev: 1293930 $ $Date: 2012-02-26 12:29:02 -0800 (Sun, 26 Feb 2012) $
*/
public class ConfUtils {
public static URL getConfResource(String name) {
URL resource = getResource(name);
if (!EnvProps.extractConfigurationFiles()) return resource;
try {
File loginConfig = ConfUtils.install(resource, name);
if (loginConfig != null){
resource = loginConfig.toURI().toURL();
}
} catch (IOException e) {
}
return resource;
}
public static URL getResource(String name) {
Enumeration<URL> resources = null;
try {
resources = Thread.currentThread().getContextClassLoader().getResources(name);
} catch (IOException e) {
// DMB: Not sure why this version of getResource doesn't require checking
// for IOException, but no matter. Perhpas it may succeed where the other fails.
return Thread.currentThread().getContextClassLoader().getResource(name);
}
URL resource = select(resources);
return resource;
}
private static URL select(Enumeration<URL> enumeration) {
if (enumeration == null) return null;
ArrayList<URL> urls = Collections.list(enumeration);
if (urls.size() == 0) return null;
if (urls.size() == 1) return urls.get(0);
// Sort so that the URL closest to openejb.base is first
Collections.sort(urls, new UrlComparator(SystemInstance.get().getBase().getDirectory()));
return urls.get(0);
}
public static File install(String source, String name) throws IOException {
ClassLoader cl = Thread.currentThread().getContextClassLoader();
URL resource = cl.getResource(source);
return install(resource, name, false);
}
public static File install(URL resource, String name) throws IOException {
return install(resource, name, false);
}
public static File install(URL resource, String name, boolean overwrite) throws IOException {
if (resource == null) return null;
SystemInstance system = SystemInstance.get();
FileUtils base = system.getBase();
File conf = base.getDirectory("conf");
if (!conf.exists()) return null;
File file = new File(conf, name);
if (file.exists() && !overwrite) return file;
IO.copy(IO.read(resource), file);
return file;
}
}