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70 lines
2.5 KiB
Java
70 lines
2.5 KiB
Java
/*
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* ====================================================================
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*
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*/
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package ch.boye.httpclientandroidlib.protocol;
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import java.io.IOException;
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import ch.boye.httpclientandroidlib.HttpException;
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import ch.boye.httpclientandroidlib.HttpRequest;
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import ch.boye.httpclientandroidlib.HttpRequestInterceptor;
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import ch.boye.httpclientandroidlib.annotation.Immutable;
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import ch.boye.httpclientandroidlib.util.Args;
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/**
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* RequestConnControl is responsible for adding <code>Connection</code> header
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* to the outgoing requests, which is essential for managing persistence of
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* <code>HTTP/1.0</code> connections. This interceptor is recommended for
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* client side protocol processors.
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*
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* @since 4.0
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*/
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@Immutable
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public class RequestConnControl implements HttpRequestInterceptor {
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public RequestConnControl() {
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super();
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}
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public void process(final HttpRequest request, final HttpContext context)
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throws HttpException, IOException {
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Args.notNull(request, "HTTP request");
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final String method = request.getRequestLine().getMethod();
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if (method.equalsIgnoreCase("CONNECT")) {
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return;
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}
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if (!request.containsHeader(HTTP.CONN_DIRECTIVE)) {
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// Default policy is to keep connection alive
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// whenever possible
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request.addHeader(HTTP.CONN_DIRECTIVE, HTTP.CONN_KEEP_ALIVE);
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}
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}
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}
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