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.builder; 018 019import org.apache.camel.CamelContext; 020import org.apache.camel.Endpoint; 021import org.apache.camel.component.bean.ProxyHelper; 022import org.apache.camel.util.ObjectHelper; 023 024/** 025 * A build to create Camel proxies. 026 * 027 * @version 028 */ 029public final class ProxyBuilder { 030 031 private final CamelContext camelContext; 032 private Endpoint endpoint; 033 034 public ProxyBuilder(CamelContext camelContext) { 035 this.camelContext = camelContext; 036 } 037 038 /** 039 * Send the proxied message to this endpoint 040 * 041 * @param url uri of endpoint 042 * @return the builder 043 */ 044 public ProxyBuilder endpoint(String url) { 045 this.endpoint = camelContext.getEndpoint(url); 046 return this; 047 } 048 049 /** 050 * Send the proxied message to this endpoint 051 * 052 * @param endpoint the endpoint 053 * @return the builder 054 */ 055 public ProxyBuilder endpoint(Endpoint endpoint) { 056 this.endpoint = endpoint; 057 return this; 058 } 059 060 /** 061 * Builds the proxy. 062 * 063 * @param interfaceClass the service interface 064 * @return the proxied bean 065 * @throws Exception is thrown if error creating the proxy 066 */ 067 @SuppressWarnings("unchecked") 068 public <T> T build(Class<T> interfaceClass) throws Exception { 069 // this method is introduced to avoid compiler warnings about the 070 // generic Class arrays in the case we've got only one single Class 071 // to build a Proxy for 072 return build((Class<T>[]) new Class[] {interfaceClass}); 073 } 074 075 /** 076 * Builds the proxy. 077 * 078 * @param interfaceClasses the service interface(s) 079 * @return the proxied bean 080 * @throws Exception is thrown if error creating the proxy 081 */ 082 public <T> T build(Class<T>... interfaceClasses) throws Exception { 083 ObjectHelper.notNull(endpoint, "endpoint"); 084 return ProxyHelper.createProxy(endpoint, interfaceClasses); 085 } 086 087}