com.sun.grizzly.http.algorithms
Class SeekHeaderAlgorithm

java.lang.Object
  com.sun.grizzly.http.algorithms.StreamAlgorithmBase
      com.sun.grizzly.http.algorithms.ContentLengthAlgorithm
          com.sun.grizzly.http.algorithms.SeekHeaderAlgorithm

All Implemented Interfaces:

StreamAlgorithm<java.nio.channels.SocketChannel>

public final class SeekHeaderAlgorithm
extends ContentLengthAlgorithm

Predict if the NIO channel has been fully read or not. This lagorithm will first search for the content-length header, and use that value to determine if the bytes has been fully read or not. If the content-length isn't included, it will search for the end of the HTTP stream, which is a '\r\n' without buffering the body.

Author:

Jean-Francois Arcand

Nested Class Summary

Nested classes/interfaces inherited from class com.sun.grizzly.http.algorithms.StreamAlgorithmBase

StreamAlgorithmBase.DummyHandler

Field Summary

Fields inherited from class com.sun.grizzly.http.algorithms.ContentLengthAlgorithm

ascbuf, CL_HEADER, isFound, lastValid, lengthReq, pos, POST_METHOD, PUT_METHOD, requestLineParsed, startReq

Fields inherited from class com.sun.grizzly.http.algorithms.StreamAlgorithmBase

contentLength, curLimit, curPosition, handler, headerLength, lastStatePosition, primaryByteBuffer, socketChannel, state, useByteBufferView, useDirectByteBuffer

Constructor Summary

SeekHeaderAlgorithm()

Method Summary

boolean

parse(java.nio.ByteBuffer byteBuffer) Parse the ByteBuffer and try to determine if the bytes stream has been fully read from the SocketChannel.

Methods inherited from class com.sun.grizzly.http.algorithms.ContentLengthAlgorithm

findBytes, getHandler, parseHeader, parseRequestLine, recycle

Methods inherited from class com.sun.grizzly.http.algorithms.StreamAlgorithmBase

allocate, contentLength, dump, getPort, headerLength, postParse, preParse, rollbackParseState, setChannel, setPort

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SeekHeaderAlgorithm

public SeekHeaderAlgorithm()

Method Detail

parse

public boolean parse(java.nio.ByteBuffer byteBuffer)

Parse the ByteBuffer and try to determine if the bytes stream has been fully read from the SocketChannel. Drain the SocketChannel and determine if the request bytes has been fully read. For POST method, parse the bytes and seek for the content-type header to determine the length of the request bytes.

Specified by:

parse in interface StreamAlgorithm<java.nio.channels.SocketChannel>

Overrides:

parse in class ContentLengthAlgorithm

Returns:

true if we need to call back the SelectorThread This occurs when the stream doesn't contains all the request bytes. false if the stream contains all request bytes.