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.camel.impl;
018
019 import java.util.Hashtable;
020
021 import javax.naming.Context;
022 import javax.naming.InitialContext;
023 import javax.naming.NameNotFoundException;
024 import javax.naming.NamingException;
025
026 import org.apache.camel.RuntimeCamelException;
027 import org.apache.camel.spi.Registry;
028
029 /**
030 * A {@link Registry} implementation which looks up the objects in JNDI
031 *
032 * @version $Revision: 747062 $
033 */
034 public class JndiRegistry implements Registry {
035 private Context context;
036
037 public JndiRegistry() {
038 }
039
040 public JndiRegistry(Context context) {
041 this.context = context;
042 }
043
044 public <T> T lookup(String name, Class<T> type) {
045 Object value = lookup(name);
046 return type.cast(value);
047 }
048
049 public Object lookup(String name) {
050 try {
051 return getContext().lookup(name);
052 } catch (NameNotFoundException e) {
053 return null;
054 } catch (NamingException e) {
055 return null;
056 }
057 }
058
059 public void bind(String s, Object o) {
060 try {
061 getContext().bind(s, o);
062 } catch (NamingException e) {
063 throw new RuntimeCamelException(e);
064 }
065 }
066
067 public void close() throws NamingException {
068 getContext().close();
069 }
070
071 public Context getContext() throws NamingException {
072 if (context == null) {
073 context = createContext();
074 }
075 return context;
076 }
077
078 public void setContext(Context context) {
079 this.context = context;
080 }
081
082 @SuppressWarnings("unchecked")
083 protected Context createContext() throws NamingException {
084 Hashtable properties = new Hashtable(System.getProperties());
085 return new InitialContext(properties);
086 }
087 }