/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed 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.keycloak.provider;
import org.jboss.logging.Logger;
import java.io.File;
import java.io.FilenameFilter;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.LinkedList;
import java.util.List;
/**
* @author <a href="mailto:sthorger@redhat.com">Stian Thorgersen</a>
*/
public class FileSystemProviderLoaderFactory implements ProviderLoaderFactory {
private static final Logger logger = Logger.getLogger(FileSystemProviderLoaderFactory.class);
@Override
public boolean supports(String type) {
return "classpath".equals(type);
}
@Override
public ProviderLoader create(ClassLoader baseClassLoader, String resource) {
return new DefaultProviderLoader(createClassLoader(baseClassLoader, resource.split(";")));
}
private static URLClassLoader createClassLoader(ClassLoader parent, String... files) {
try {
List<URL> urls = new LinkedList<URL>();
for (String f : files) {
if (f.endsWith("*")) {
File dir = new File(f.substring(0, f.length() - 1));
if (dir.isDirectory()) {
for (File file : dir.listFiles(new JarFilter())) {
urls.add(file.toURI().toURL());
}
}
} else {
urls.add(new File(f).toURI().toURL());
}
}
logger.debug("Loading providers from " + urls.toString());
return new URLClassLoader(urls.toArray(new URL[urls.size()]), parent);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
private static class JarFilter implements FilenameFilter {
@Override
public boolean accept(File dir, String name) {
return name.toLowerCase().endsWith(".jar");
}
}
}