package org.eclipse.osgi.internal.loader.sources;
import java.net.URL;
import java.util.*;
import org.eclipse.osgi.internal.loader.BundleLoader;
public class MultiSourcePackage extends PackageSource {
private final SingleSourcePackage[] suppliers;
public MultiSourcePackage(String id, SingleSourcePackage[] suppliers) {
super(id);
this.suppliers = suppliers;
}
@Override
public SingleSourcePackage[] getSuppliers() {
return suppliers;
}
@Override
public Class<?> loadClass(String name) throws ClassNotFoundException {
Class<?> result = null;
for (SingleSourcePackage supplier : suppliers) {
result = supplier.loadClass(name);
if (result != null)
return result;
}
return result;
}
@Override
public URL getResource(String name) {
URL result = null;
for (SingleSourcePackage supplier : suppliers) {
result = supplier.getResource(name);
if (result != null)
return result;
}
return result;
}
@Override
public Enumeration<URL> getResources(String name) {
Enumeration<URL> results = null;
for (SingleSourcePackage supplier : suppliers) {
results = BundleLoader.compoundEnumerations(results, supplier.getResources(name));
}
return results;
}
@Override
public Collection<String> listResources(String path, String filePattern) {
List<String> result = new ArrayList<>();
for (SingleSourcePackage source : suppliers) {
Collection<String> sourceResources = source.listResources(path, filePattern);
for (String resource : sourceResources) {
if (!result.contains(resource))
result.add(resource);
}
}
return result;
}
}
