001/* 002 * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * bstefanescu 018 */ 019package org.nuxeo.ecm.webengine.jaxrs.servlet; 020 021import java.io.IOException; 022import java.net.URL; 023import java.util.ArrayList; 024import java.util.Enumeration; 025import java.util.List; 026 027import org.nuxeo.ecm.webengine.jaxrs.Activator; 028import org.osgi.framework.Bundle; 029import org.osgi.framework.BundleContext; 030import org.osgi.framework.Constants; 031 032import com.sun.jersey.api.uri.UriBuilderImpl; 033import com.sun.jersey.server.impl.provider.RuntimeDelegateImpl; 034 035/** 036 * Support for jersey ServiceFinder lookups in an OSGi environment. 037 * 038 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> 039 * @deprecated This class is deprecated since jersey 1.11 which fixed OSGi class loader problems. 040 */ 041@Deprecated 042public class ServiceClassLoader extends ClassLoader { 043 044 public static ClassLoader getLoader() { 045 BundleContext ctx = Activator.getInstance().getContext(); 046 String vendor = ctx.getProperty(Constants.FRAMEWORK_VENDOR); 047 if (vendor != null && vendor.contains("Nuxeo")) { 048 // support fake nuxeo osgi adapter 049 return Activator.class.getClassLoader(); 050 } else { 051 ServiceClassLoader loader = new ServiceClassLoader(ctx.getBundle()); 052 loader.addResourceLoader(RuntimeDelegateImpl.class.getClassLoader()); 053 loader.addResourceLoader(UriBuilderImpl.class.getClassLoader()); 054 return loader; 055 } 056 } 057 058 protected Bundle bundle; 059 060 protected List<ClassLoader> loaders; 061 062 public ServiceClassLoader(Bundle bundle) { 063 this.bundle = bundle; 064 this.loaders = new ArrayList<>(); 065 } 066 067 public void addResourceLoader(ClassLoader cl) { 068 loaders.add(cl); 069 } 070 071 @Override 072 protected URL findResource(String name) { 073 URL url = null; 074 for (ClassLoader cl : loaders) { 075 url = cl.getResource(name); 076 if (url != null) { 077 break; 078 } 079 } 080 return url; 081 } 082 083 @Override 084 protected Enumeration<URL> findResources(String name) throws IOException { 085 ArrayList<Enumeration<URL>> enums = new ArrayList<>(); 086 for (ClassLoader cl : loaders) { 087 enums.add(cl.getResources(name)); 088 } 089 return new CompoundEnumeration<>(enums.toArray(new Enumeration[enums.size()])); 090 } 091 092 @Override 093 protected synchronized Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException { 094 return bundle.loadClass(name); 095 } 096}