Wed, 31 Dec 2014 07:22:50 +0100
Correct previous dual key logic pending first delivery installment.
michael@0 | 1 | /* |
michael@0 | 2 | * ==================================================================== |
michael@0 | 3 | * Licensed to the Apache Software Foundation (ASF) under one |
michael@0 | 4 | * or more contributor license agreements. See the NOTICE file |
michael@0 | 5 | * distributed with this work for additional information |
michael@0 | 6 | * regarding copyright ownership. The ASF licenses this file |
michael@0 | 7 | * to you under the Apache License, Version 2.0 (the |
michael@0 | 8 | * "License"); you may not use this file except in compliance |
michael@0 | 9 | * with the License. You may obtain a copy of the License at |
michael@0 | 10 | * |
michael@0 | 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
michael@0 | 12 | * |
michael@0 | 13 | * Unless required by applicable law or agreed to in writing, |
michael@0 | 14 | * software distributed under the License is distributed on an |
michael@0 | 15 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
michael@0 | 16 | * KIND, either express or implied. See the License for the |
michael@0 | 17 | * specific language governing permissions and limitations |
michael@0 | 18 | * under the License. |
michael@0 | 19 | * ==================================================================== |
michael@0 | 20 | * |
michael@0 | 21 | * This software consists of voluntary contributions made by many |
michael@0 | 22 | * individuals on behalf of the Apache Software Foundation. For more |
michael@0 | 23 | * information on the Apache Software Foundation, please see |
michael@0 | 24 | * <http://www.apache.org/>. |
michael@0 | 25 | * |
michael@0 | 26 | */ |
michael@0 | 27 | |
michael@0 | 28 | package ch.boye.httpclientandroidlib.protocol; |
michael@0 | 29 | |
michael@0 | 30 | import java.io.IOException; |
michael@0 | 31 | |
michael@0 | 32 | import ch.boye.httpclientandroidlib.HttpEntity; |
michael@0 | 33 | import ch.boye.httpclientandroidlib.HttpEntityEnclosingRequest; |
michael@0 | 34 | import ch.boye.httpclientandroidlib.HttpException; |
michael@0 | 35 | import ch.boye.httpclientandroidlib.HttpRequest; |
michael@0 | 36 | import ch.boye.httpclientandroidlib.HttpRequestInterceptor; |
michael@0 | 37 | import ch.boye.httpclientandroidlib.HttpVersion; |
michael@0 | 38 | import ch.boye.httpclientandroidlib.ProtocolVersion; |
michael@0 | 39 | import ch.boye.httpclientandroidlib.params.HttpProtocolParams; |
michael@0 | 40 | |
michael@0 | 41 | /** |
michael@0 | 42 | * RequestExpectContinue is responsible for enabling the 'expect-continue' |
michael@0 | 43 | * handshake by adding <code>Expect</code> header. This interceptor is |
michael@0 | 44 | * recommended for client side protocol processors. |
michael@0 | 45 | * <p> |
michael@0 | 46 | * The following parameters can be used to customize the behavior of this |
michael@0 | 47 | * class: |
michael@0 | 48 | * <ul> |
michael@0 | 49 | * <li>{@link ch.boye.httpclientandroidlib.params.CoreProtocolPNames#USE_EXPECT_CONTINUE}</li> |
michael@0 | 50 | * </ul> |
michael@0 | 51 | * |
michael@0 | 52 | * @since 4.0 |
michael@0 | 53 | */ |
michael@0 | 54 | public class RequestExpectContinue implements HttpRequestInterceptor { |
michael@0 | 55 | |
michael@0 | 56 | public RequestExpectContinue() { |
michael@0 | 57 | super(); |
michael@0 | 58 | } |
michael@0 | 59 | |
michael@0 | 60 | public void process(final HttpRequest request, final HttpContext context) |
michael@0 | 61 | throws HttpException, IOException { |
michael@0 | 62 | if (request == null) { |
michael@0 | 63 | throw new IllegalArgumentException("HTTP request may not be null"); |
michael@0 | 64 | } |
michael@0 | 65 | if (request instanceof HttpEntityEnclosingRequest) { |
michael@0 | 66 | HttpEntity entity = ((HttpEntityEnclosingRequest)request).getEntity(); |
michael@0 | 67 | // Do not send the expect header if request body is known to be empty |
michael@0 | 68 | if (entity != null && entity.getContentLength() != 0) { |
michael@0 | 69 | ProtocolVersion ver = request.getRequestLine().getProtocolVersion(); |
michael@0 | 70 | if (HttpProtocolParams.useExpectContinue(request.getParams()) |
michael@0 | 71 | && !ver.lessEquals(HttpVersion.HTTP_1_0)) { |
michael@0 | 72 | request.addHeader(HTTP.EXPECT_DIRECTIVE, HTTP.EXPECT_CONTINUE); |
michael@0 | 73 | } |
michael@0 | 74 | } |
michael@0 | 75 | } |
michael@0 | 76 | } |
michael@0 | 77 | |
michael@0 | 78 | } |