/*
* Copyright 2010 the original author or authors.
*
* 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.gradle.api.internal;
import org.gradle.api.UncheckedIOException;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.*;
public class DefaultClassPathRegistry implements ClassPathRegistry {
private final List<ClassPathProvider> providers = new ArrayList<ClassPathProvider>();
public DefaultClassPathRegistry(ClassPathProvider... providers) {
this.providers.addAll(Arrays.asList(providers));
this.providers.add(new DefaultClassPathProvider());
}
public URL[] getClassPathUrls(String name) {
return toURLArray(getClassPathFiles(name));
}
public Set<URL> getClassPath(String name) {
return toUrlSet(getClassPathFiles(name));
}
public Set<File> getClassPathFiles(String name) {
for (ClassPathProvider provider : providers) {
Set<File> classpath = provider.findClassPath(name);
if (classpath != null) {
return classpath;
}
}
throw new IllegalArgumentException(String.format("unknown classpath '%s' requested.", name));
}
private Set<URL> toUrlSet(Set<File> classPathFiles) {
Set<URL> urls = new LinkedHashSet<URL>();
for (File file : classPathFiles) {
try {
urls.add(file.toURI().toURL());
} catch (MalformedURLException e) {
throw new UncheckedIOException(e);
}
}
return urls;
}
private URL[] toURLArray(Collection<File> files) {
List<URL> urls = new ArrayList<URL>(files.size());
for (File file : files) {
try {
urls.add(file.toURI().toURL());
} catch (MalformedURLException e) {
throw new UncheckedIOException(e);
}
}
return urls.toArray(new URL[urls.size()]);
}
}