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 */ 017package org.apache.camel.util.jndi; 018 019import java.util.Hashtable; 020 021import javax.naming.Context; 022import javax.naming.NamingException; 023import javax.naming.spi.InitialContextFactory; 024 025import org.apache.camel.util.CastUtils; 026 027/** 028 * A factory of the Camel {@link javax.naming.InitialContext} which allows a {@link java.util.Map} to be used to create a 029 * JNDI context. 030 * <p/> 031 * This implementation is prototype based, by creating a <b>new</b> context on each call to 032 * {@link #getInitialContext(java.util.Hashtable)}. 033 * 034 * @version 035 */ 036public class CamelInitialContextFactory implements InitialContextFactory { 037 038 /** 039 * Creates a new context with the given environment. 040 * 041 * @param environment the environment, must not be <tt>null</tt> 042 * @return the created context. 043 * @throws NamingException is thrown if creation failed. 044 */ 045 public Context getInitialContext(Hashtable<?, ?> environment) throws NamingException { 046 try { 047 return new JndiContext(CastUtils.cast(environment, String.class, Object.class)); 048 } catch (Exception e) { 049 if (e instanceof NamingException) { 050 throw (NamingException) e; 051 } 052 NamingException exception = new NamingException(e.getMessage()); 053 exception.initCause(e); 054 throw exception; 055 } 056 } 057}