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/*
 * ====================================================================
 * 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.impl.io;

import java.io.IOException;

import org.apache.http.HttpException;
import org.apache.http.HttpMessage;
import org.apache.http.HttpResponseFactory;
import org.apache.http.NoHttpResponseException;
import org.apache.http.ParseException;
import org.apache.http.StatusLine;
import org.apache.http.io.SessionInputBuffer;
import org.apache.http.message.LineParser;
import org.apache.http.message.ParserCursor;
import org.apache.http.params.HttpParams;
import org.apache.http.util.Args;
import org.apache.http.util.CharArrayBuffer;

/**
 * HTTP response parser that obtain its input from an instance
 * of {@link SessionInputBuffer}.
 * 

* The following parameters can be used to customize the behavior of this * class: *

    *
  • {@link org.apache.http.params.CoreConnectionPNames#MAX_HEADER_COUNT}
  • *
  • {@link org.apache.http.params.CoreConnectionPNames#MAX_LINE_LENGTH}
  • *
* * @since 4.0 * * @deprecated (4.2) use {@link DefaultHttpResponseParser} */ @Deprecated public class HttpResponseParser extends AbstractMessageParser { private final HttpResponseFactory responseFactory; private final CharArrayBuffer lineBuf; /** * Creates an instance of this class. * * @param buffer the session input buffer. * @param parser the line parser. * @param responseFactory the factory to use to create * {@link org.apache.http.HttpResponse}s. * @param params HTTP parameters. */ public HttpResponseParser( final SessionInputBuffer buffer, final LineParser parser, final HttpResponseFactory responseFactory, final HttpParams params) { super(buffer, parser, params); this.responseFactory = Args.notNull(responseFactory, "Response factory"); this.lineBuf = new CharArrayBuffer(128); } @Override protected HttpMessage parseHead( final SessionInputBuffer sessionBuffer) throws IOException, HttpException, ParseException { this.lineBuf.clear(); final int readLen = sessionBuffer.readLine(this.lineBuf); if (readLen == -1) { throw new NoHttpResponseException("The target server failed to respond"); } //create the status line from the status string final ParserCursor cursor = new ParserCursor(0, this.lineBuf.length()); final StatusLine statusline = lineParser.parseStatusLine(this.lineBuf, cursor); return this.responseFactory.newHttpResponse(statusline, null); } }




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