package org.codehaus.plexus.classworlds.strategy;
/*
* Copyright 2001-2010 Codehaus Foundation.
*
* 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.
*/
import java.io.IOException;
import java.net.URL;
import java.util.Enumeration;
import org.codehaus.plexus.classworlds.realm.ClassRealm;
public class OsgiBundleStrategy
extends AbstractStrategy
{
// java.* from parent
// imported packages [Import-Package header with explicit constraints on the exporter]
// requires bundle [Required-Bundle]
// self [Bundle-Classpath header]
// attached fragments
//
// We need to trya and be OSGi r4 compliant in the loading of all the bundles so that we can try to
// load eclipse without requiring equinox. Or any other OSGi container for that matter.
public OsgiBundleStrategy( ClassRealm realm )
{
super( realm );
}
public Class<?> loadClass( String name )
throws ClassNotFoundException
{
Class<?> clazz = realm.loadClassFromImport( name );
if ( clazz == null )
{
clazz = realm.loadClassFromSelf( name );
if ( clazz == null )
{
clazz = realm.loadClassFromParent( name );
if ( clazz == null )
{
throw new ClassNotFoundException( name );
}
}
}
return clazz;
}
public URL getResource( String name )
{
URL resource = realm.loadResourceFromImport( name );
if ( resource == null )
{
resource = realm.loadResourceFromSelf( name );
if ( resource == null )
{
resource = realm.loadResourceFromParent( name );
}
}
return resource;
}
public Enumeration<URL> getResources( String name )
throws IOException
{
Enumeration<URL> imports = realm.loadResourcesFromImport( name );
Enumeration<URL> self = realm.loadResourcesFromSelf( name );
Enumeration<URL> parent = realm.loadResourcesFromParent( name );
return combineResources( imports, self, parent );
}
}