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: 303 $ 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 protected Context createContext() throws NamingException { 083 Hashtable properties = new Hashtable(System.getProperties()); 084 return new InitialContext(properties); 085 } 086 }