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.component.http;
018    
019    import java.io.IOException;
020    import java.io.InputStream;
021    
022    import org.apache.camel.Converter;
023    import org.apache.camel.Exchange;
024    import org.apache.camel.component.http.helper.GZIPHelper;
025    import org.apache.camel.util.ExchangeHelper;
026    import org.apache.commons.httpclient.methods.InputStreamRequestEntity;
027    import org.apache.commons.httpclient.methods.RequestEntity;
028    
029    /**
030     * Some converter methods to make it easier to convert the body to RequestEntity types.
031     */
032    @Converter
033    public class RequestEntityConverter {
034    
035        @Converter
036        public RequestEntity toRequestEntity(byte[] data, Exchange exchange) throws Exception {
037            return asRequestEntity(data, exchange);
038        }
039    
040        @Converter
041        public RequestEntity toRequestEntity(InputStream inStream, Exchange exchange) throws Exception {
042            return asRequestEntity(inStream, exchange);
043        }
044    
045        @Converter
046        public RequestEntity toRequestEntity(String str, Exchange exchange) throws Exception {
047            if (GZIPHelper.isGzip(exchange.getIn())) {
048                byte[] data = exchange.getContext().getTypeConverter().convertTo(byte[].class, str);
049                return asRequestEntity(data, exchange);
050            } else {
051                // will use the default StringRequestEntity
052                return null;
053            }
054        }
055    
056        private RequestEntity asRequestEntity(InputStream in, Exchange exchange) throws IOException {
057            return new InputStreamRequestEntity(
058                    GZIPHelper.toGZIPInputStream(
059                            exchange.getIn().getHeader(Exchange.CONTENT_ENCODING, String.class),
060                            in), ExchangeHelper.getContentType(exchange));
061        }
062    
063        private RequestEntity asRequestEntity(byte[] data, Exchange exchange) throws Exception {
064            return new InputStreamRequestEntity(
065                GZIPHelper.toGZIPInputStream(
066                        exchange.getIn().getHeader(Exchange.CONTENT_ENCODING, String.class),
067                        data), ExchangeHelper.getContentType(exchange));
068        }
069    }
070