001 /** 002 * 003 * Licensed to the Apache Software Foundation (ASF) under one or more 004 * contributor license agreements. See the NOTICE file distributed with 005 * this work for additional information regarding copyright ownership. 006 * The ASF licenses this file to You under the Apache License, Version 2.0 007 * (the "License"); you may not use this file except in compliance with 008 * the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 package org.apache.camel.util; 019 020 import org.apache.camel.Endpoint; 021 import org.apache.camel.Exchange; 022 import org.apache.camel.NoSuchEndpointException; 023 024 /** 025 * Some helper methods for working with {@link Exchange} objects 026 * 027 * @version $Revision: 532790 $ 028 */ 029 public class ExchangeHelper { 030 031 /** 032 * Attempts to resolve the endpoint for the given value 033 * 034 * @param exchange the message exchange being processed 035 * @param value the value which can be an {@link Endpoint} or an object which provides a String representation 036 * of an endpoint via {@link #toString()} 037 * 038 * @return the endpoint 039 * @throws NoSuchEndpointException if the endpoint cannot be resolved 040 */ 041 @SuppressWarnings({"unchecked"}) 042 public static <E extends Exchange> Endpoint<E> resolveEndpoint(E exchange, Object value) throws NoSuchEndpointException { 043 Endpoint<E> endpoint; 044 if (value instanceof Endpoint) { 045 endpoint = (Endpoint<E>) value; 046 } 047 else { 048 String uri = value.toString(); 049 endpoint = (Endpoint<E>) exchange.getContext().getEndpoint(uri); 050 if (endpoint == null) { 051 throw new NoSuchEndpointException(uri); 052 } 053 } 054 return endpoint; 055 } 056 }