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.Collections; 020 import java.util.Hashtable; 021 import java.util.Map; 022 import javax.naming.Context; 023 import javax.naming.InitialContext; 024 import javax.naming.NameNotFoundException; 025 import javax.naming.NamingException; 026 027 import org.apache.camel.RuntimeCamelException; 028 import org.apache.camel.spi.Registry; 029 030 /** 031 * A {@link Registry} implementation which looks up the objects in JNDI 032 * 033 * @version $Revision: 762641 $ 034 */ 035 public class JndiRegistry implements Registry { 036 private Context context; 037 038 public JndiRegistry() { 039 } 040 041 public JndiRegistry(Context context) { 042 this.context = context; 043 } 044 045 public <T> T lookup(String name, Class<T> type) { 046 Object value = lookup(name); 047 return type.cast(value); 048 } 049 050 public Object lookup(String name) { 051 try { 052 return getContext().lookup(name); 053 } catch (NameNotFoundException e) { 054 return null; 055 } catch (NamingException e) { 056 return null; 057 } 058 } 059 060 @SuppressWarnings("unchecked") 061 public <T> Map<String, T> lookupByType(Class<T> type) { 062 // not implemented so we return an empty map 063 return Collections.EMPTY_MAP; 064 } 065 066 public void bind(String s, Object o) { 067 try { 068 getContext().bind(s, o); 069 } catch (NamingException e) { 070 throw new RuntimeCamelException(e); 071 } 072 } 073 074 public void close() throws NamingException { 075 getContext().close(); 076 } 077 078 public Context getContext() throws NamingException { 079 if (context == null) { 080 context = createContext(); 081 } 082 return context; 083 } 084 085 public void setContext(Context context) { 086 this.context = context; 087 } 088 089 @SuppressWarnings("unchecked") 090 protected Context createContext() throws NamingException { 091 Hashtable properties = new Hashtable(System.getProperties()); 092 return new InitialContext(properties); 093 } 094 }