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101 lines
3.8 KiB
Java
101 lines
3.8 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.impl.io;
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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.HttpMessage;
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import ch.boye.httpclientandroidlib.HttpResponse;
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import ch.boye.httpclientandroidlib.HttpResponseFactory;
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import ch.boye.httpclientandroidlib.NoHttpResponseException;
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import ch.boye.httpclientandroidlib.StatusLine;
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import ch.boye.httpclientandroidlib.ParseException;
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import ch.boye.httpclientandroidlib.io.SessionInputBuffer;
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import ch.boye.httpclientandroidlib.message.LineParser;
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import ch.boye.httpclientandroidlib.message.ParserCursor;
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import ch.boye.httpclientandroidlib.params.HttpParams;
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import ch.boye.httpclientandroidlib.util.CharArrayBuffer;
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/**
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* HTTP response parser that obtain its input from an instance
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* of {@link SessionInputBuffer}.
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* <p>
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* The following parameters can be used to customize the behavior of this
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* class:
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* <ul>
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* <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#MAX_HEADER_COUNT}</li>
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* <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#MAX_LINE_LENGTH}</li>
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* </ul>
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*
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* @since 4.0
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*/
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public class HttpResponseParser extends AbstractMessageParser {
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private final HttpResponseFactory responseFactory;
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private final CharArrayBuffer lineBuf;
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/**
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* Creates an instance of this class.
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*
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* @param buffer the session input buffer.
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* @param parser the line parser.
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* @param responseFactory the factory to use to create
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* {@link HttpResponse}s.
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* @param params HTTP parameters.
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*/
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public HttpResponseParser(
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final SessionInputBuffer buffer,
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final LineParser parser,
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final HttpResponseFactory responseFactory,
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final HttpParams params) {
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super(buffer, parser, params);
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if (responseFactory == null) {
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throw new IllegalArgumentException("Response factory may not be null");
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}
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this.responseFactory = responseFactory;
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this.lineBuf = new CharArrayBuffer(128);
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}
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protected HttpMessage parseHead(
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final SessionInputBuffer sessionBuffer)
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throws IOException, HttpException, ParseException {
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this.lineBuf.clear();
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int i = sessionBuffer.readLine(this.lineBuf);
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if (i == -1) {
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throw new NoHttpResponseException("The target server failed to respond");
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}
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//create the status line from the status string
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ParserCursor cursor = new ParserCursor(0, this.lineBuf.length());
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StatusLine statusline = lineParser.parseStatusLine(this.lineBuf, cursor);
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return this.responseFactory.newHttpResponse(statusline, null);
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}
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}
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