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.component.http; 019 020 import org.apache.camel.Exchange; 021 import org.apache.camel.Message; 022 import org.apache.camel.Producer; 023 import org.apache.camel.impl.DefaultProducer; 024 import org.apache.commons.httpclient.Header; 025 import org.apache.commons.httpclient.HttpClient; 026 import org.apache.commons.httpclient.HttpMethod; 027 import org.apache.commons.httpclient.methods.ByteArrayRequestEntity; 028 import org.apache.commons.httpclient.methods.GetMethod; 029 import org.apache.commons.httpclient.methods.PostMethod; 030 import org.apache.commons.httpclient.methods.RequestEntity; 031 032 import java.io.InputStream; 033 034 /** 035 * @version $Revision: 1.1 $ 036 */ 037 public class HttpProducer extends DefaultProducer<HttpExchange> implements Producer<HttpExchange> { 038 private HttpClient httpClient = new HttpClient(); 039 040 public HttpProducer(HttpEndpoint endpoint) { 041 super(endpoint); 042 } 043 044 public void process(Exchange exchange) throws Exception { 045 HttpMethod method = createMethod(exchange); 046 int responseCode = httpClient.executeMethod(method); 047 048 // lets store the result in the output message. 049 InputStream in = method.getResponseBodyAsStream(); 050 Message out = exchange.getOut(true); 051 out.setBody(in); 052 053 // lets set the headers 054 Header[] headers = method.getResponseHeaders(); 055 for (Header header : headers) { 056 String name = header.getName(); 057 String value = header.getValue(); 058 out.setHeader(name, value); 059 } 060 061 out.setHeader("http.responseCode", responseCode); 062 } 063 064 protected HttpMethod createMethod(Exchange exchange) { 065 String uri = getEndpoint().getEndpointUri(); 066 RequestEntity requestEntity = createRequestEntity(exchange); 067 if (requestEntity == null) { 068 return new GetMethod(uri); 069 } 070 // TODO we might be PUT? - have some better way to explicitly choose method 071 PostMethod method = new PostMethod(uri); 072 method.setRequestEntity(requestEntity); 073 return method; 074 } 075 076 protected RequestEntity createRequestEntity(Exchange exchange) { 077 Message in = exchange.getIn(); 078 RequestEntity entity = in.getBody(RequestEntity.class); 079 if (entity == null) { 080 byte[] data = in.getBody(byte[].class); 081 String contentType = in.getHeader("Content-Type", String.class); 082 if (contentType != null) { 083 return new ByteArrayRequestEntity(data, contentType); 084 } 085 else { 086 return new ByteArrayRequestEntity(data); 087 } 088 } 089 return entity; 090 } 091 }