001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.geronimo.corba.proxy;
018
019 import java.net.URI;
020 import javax.naming.NameNotFoundException;
021
022 import org.apache.commons.logging.Log;
023 import org.apache.commons.logging.LogFactory;
024 import org.apache.geronimo.gbean.AbstractName;
025 import org.apache.geronimo.gbean.AbstractNameQuery;
026 import org.apache.geronimo.kernel.GBeanNotFoundException;
027 import org.apache.geronimo.kernel.Kernel;
028 import org.apache.geronimo.kernel.repository.Artifact;
029 import org.apache.geronimo.naming.reference.ConfigurationAwareReference;
030
031
032 /**
033 * @version $Revision: 451417 $ $Date: 2006-09-29 13:13:22 -0700 (Fri, 29 Sep 2006) $
034 */
035 public final class CORBAProxyReference extends ConfigurationAwareReference {
036
037 private final static Log log = LogFactory.getLog(CORBAProxyReference.class);
038
039 private final URI nsCorbaloc;
040 private final String objectName;
041 private final String home;
042
043 public CORBAProxyReference(Artifact[] configId, AbstractNameQuery abstractNameQuery, URI nsCorbaloc, String objectName, String home) {
044 super(configId, abstractNameQuery);
045 this.nsCorbaloc = nsCorbaloc;
046 this.objectName = objectName;
047 this.home = home;
048 if (log.isDebugEnabled()) {
049 log.debug("<init> " + nsCorbaloc.toString() + ", " + objectName + ", " + abstractNameQuery + ", " + home);
050 }
051 }
052
053 public String getClassName() {
054 return home;
055 }
056
057 public Object getContent() throws NameNotFoundException {
058
059 if (log.isDebugEnabled()) {
060 log.debug("Obtaining home from " + nsCorbaloc.toString() + ", " + objectName + ", " + abstractNameQueries + ", " + home);
061 }
062 AbstractName containerName;
063 try {
064 containerName = resolveTargetName();
065 } catch (GBeanNotFoundException e) {
066 throw (NameNotFoundException) new NameNotFoundException("Could not resolve gbean from name query: " + abstractNameQueries).initCause(e);
067 }
068 Kernel kernel = getKernel();
069 Object proxy;
070 try {
071 //TODO configid objectname might well be wrong kind of thing.
072 proxy = kernel.invoke(containerName, "getHome", new Object[]{nsCorbaloc, objectName}, new String[]{URI.class.getName(), String.class.getName()});
073 } catch (Exception e) {
074 log.error("Could not get proxy from " + containerName, e);
075 throw (IllegalStateException) new IllegalStateException("Could not get proxy").initCause(e);
076 }
077 if (proxy == null) {
078 log.error("Proxy not returned from " + containerName);
079 throw new IllegalStateException("Proxy not returned. Target " + containerName + " not started");
080 }
081 if (!org.omg.CORBA.Object.class.isAssignableFrom(proxy.getClass())) {
082 log.error("Proxy not an instance of expected class org.omg.CORBA.Object from " + containerName);
083 throw new ClassCastException("Proxy not an instance of expected class org.omg.CORBA.Object");
084 }
085 return proxy;
086 }
087 }