com.sun.grizzly.util.StreamAlgorithm Maven / Gradle / Ivy
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package com.sun.grizzly.util;
import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;
/**
* Generic parsing interface that can be used to implement protocol
* specific logic parsing.
*
* @deprecated Use the ProtocolParser instead.
*
* @author Jean-Francois Arcand
*/
public interface StreamAlgorithm{
/**
* Return the stream content-length. If the content-length wasn't parsed,
* return -1.
* @return content length or -1 if content length was not parsed
*/
public int contentLength();
/**
* Return the stream header length. The header length is the length between
* the start of the stream and the first occurance of character '\r\n' .
* @return header length
*/
public int headerLength();
/**
* Allocate a {@link ByteBuffer}
* @param useDirect allocate a direct {@link ByteBuffer}.
* @param useView allocate a view {@link ByteBuffer}.
* @param size the size of the newly created {@link ByteBuffer}.
* @return a new {@link ByteBuffer}
*/
public ByteBuffer allocate(boolean useDirect, boolean useView, int size);
/**
* Before parsing the bytes, initialize and prepare the algorithm.
* @param byteBuffer the {@link ByteBuffer} used by this algorithm
* @return {@link ByteBuffer} used by this algorithm
*/
public ByteBuffer preParse(ByteBuffer byteBuffer);
/**
* Parse the {@link ByteBuffer} and try to determine if the bytes
* stream has been fully read from the {@link SocketChannel}.
* @param byteBuffer the bytes read.
* @return true if the algorithm determines the end of the stream.
*/
public boolean parse(ByteBuffer byteBuffer);
/**
* After parsing the bytes, post process the {@link ByteBuffer}
* @param byteBuffer the {@link ByteBuffer} used by this algorithm
* @return {@link ByteBuffer} used by this algorithm
*/
public ByteBuffer postParse(ByteBuffer byteBuffer);
/**
* Recycle the algorithm.
*/
public void recycle();
/**
* Rollback the {@link ByteBuffer} to its previous state in case
* an error as occured.
* @param byteBuffer
* @return {@link ByteBuffer}
*/
public ByteBuffer rollbackParseState(ByteBuffer byteBuffer);
/**
* The {@link Interceptor} associated with this algorithm.
* @return {@link Interceptor}
*/
public Interceptor getHandler();
/**
* Set the {@link Channel} used by this algorithm
* @param channek set {@link Channel}
*/
public void setChannel(E channel);
/**
* Set the port this algorithm is used.
* @param port port number
*/
public void setPort(int port);
/**
* Return the port
* @return port number being used
*/
public int getPort();
}