/* * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/protocol/RequestExpectContinue.java $ * $Revision: 573864 $ * $Date: 2007-09-08 08:53:25 -0700 (Sat, 08 Sep 2007) $ * * ==================================================================== * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * . * */ package org.apache.http.protocol; import java.io.IOException; import org.apache.http.HttpEntity; import org.apache.http.HttpEntityEnclosingRequest; import org.apache.http.HttpException; import org.apache.http.HttpRequest; import org.apache.http.HttpRequestInterceptor; import org.apache.http.HttpVersion; import org.apache.http.ProtocolVersion; import org.apache.http.params.HttpProtocolParams; /** * A request interceptor that enables the expect-continue handshake. * * @author Oleg Kalnichevski * * @version $Revision: 573864 $ * * @since 4.0 * * @deprecated Please use {@link java.net.URL#openConnection} instead. * Please visit this webpage * for further details. */ @Deprecated public class RequestExpectContinue implements HttpRequestInterceptor { public RequestExpectContinue() { super(); } public void process(final HttpRequest request, final HttpContext context) throws HttpException, IOException { if (request == null) { throw new IllegalArgumentException("HTTP request may not be null"); } if (request instanceof HttpEntityEnclosingRequest) { HttpEntity entity = ((HttpEntityEnclosingRequest)request).getEntity(); // Do not send the expect header if request body is known to be empty if (entity != null && entity.getContentLength() != 0) { ProtocolVersion ver = request.getRequestLine().getProtocolVersion(); if (HttpProtocolParams.useExpectContinue(request.getParams()) && !ver.lessEquals(HttpVersion.HTTP_1_0)) { request.addHeader(HTTP.EXPECT_DIRECTIVE, HTTP.EXPECT_CONTINUE); } } } } }