Class HTTPMessageReader

java.lang.Object
  |
  +--HTTPMessageReader

Direct Known Subclasses:

HTTPRequestReader, HTTPResponseReader

public abstract class HTTPMessageReader

extends java.lang.Object

Stream reader for HTTP messages (requests and responses).

Field Summary

protected java.util.ArrayList	body The body of the message
protected java.lang.String	connection Header field: Connection
protected int	contentLength Header field: The length of message body
protected java.util.ArrayList	header The header of the message (blank line included)
protected byte[]	message The whole message obtained from the stream
protected boolean	mustCloseConnection Flag that informs whether the connection must be closed or not
protected int	offset Position of body in the message
(package private) java.lang.String	versionProtocol Start/Status line: The version of HTTP protocol, eg.

Constructor Summary

HTTPMessageReader()

Method Summary

private void	concatenateHeaderBody() Concatenates the header and the body in a whole message.
void	eraseCommand(java.lang.String cmd, int nbrParam) Erases from the header the line containing a command.
protected void	retrieveBody(java.io.DataInputStream distream) Receives the body of the message (if exists) from the stream.
protected void	retrieveHeader(java.io.DataInputStream distream) Reads inside the stream until the "\r\n" couple that separes header from body message.
static byte[]	toArray(java.util.ArrayList arraylist) Converts an ArrayList of Bytes into an array of bytes.

Methods inherited from class java.lang.Object

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

Field Detail

header

protected java.util.ArrayList header

The header of the message (blank line included)

body

protected java.util.ArrayList body

The body of the message

message

protected byte[] message

The whole message obtained from the stream

versionProtocol

java.lang.String versionProtocol

Start/Status line: The version of HTTP protocol, eg. HTTP/1.1

contentLength

protected int contentLength

Header field: The length of message body

offset

protected int offset

Position of body in the message

connection

protected java.lang.String connection

Header field: Connection

mustCloseConnection

protected boolean mustCloseConnection

Flag that informs whether the connection must be closed or not

Constructor Detail

HTTPMessageReader

public HTTPMessageReader()

Method Detail

retrieveHeader

protected void retrieveHeader(java.io.DataInputStream distream)
                       throws java.io.IOException

Reads inside the stream until the "\r\n" couple that separes header from body message.

Parameters:

distream - the stream of connection

retrieveBody

protected void retrieveBody(java.io.DataInputStream distream)
                     throws java.io.IOException

Receives the body of the message (if exists) from the stream.

Parameters:

distream - the stream of connection

concatenateHeaderBody

private void concatenateHeaderBody()

Concatenates the header and the body in a whole message.

toArray

public static byte[] toArray(java.util.ArrayList arraylist)

Converts an ArrayList of Bytes into an array of bytes.

Parameters:

arraylist - an ArrayList

Returns:

an array of bytes

eraseCommand

public void eraseCommand(java.lang.String cmd,
                         int nbrParam)

Erases from the header the line containing a command.

Parameters:

cmd - the command that identifies the line

nbrParam - the number of parameter to erase after the command cmd