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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 SessionInputBuffer.

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

Since:4.0
Deprecated:(4.2) use DefaultHttpResponseParser
/** * HTTP response parser that obtain its input from an instance * of {@link SessionInputBuffer}. * <p> * The following parameters can be used to customize the behavior of this * class: * <ul> * <li>{@link org.apache.http.params.CoreConnectionPNames#MAX_HEADER_COUNT}</li> * <li>{@link org.apache.http.params.CoreConnectionPNames#MAX_LINE_LENGTH}</li> * </ul> * * @since 4.0 * * @deprecated (4.2) use {@link DefaultHttpResponseParser} */
@Deprecated public class HttpResponseParser extends AbstractMessageParser<HttpMessage> { private final HttpResponseFactory responseFactory; private final CharArrayBuffer lineBuf;
Creates an instance of this class.
Params:
  • buffer – the session input buffer.
  • parser – the line parser.
  • responseFactory – the factory to use to create HttpResponses.
  • params – HTTP parameters.
/** * 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); } }