com.icegreen.greenmail.imap

Class ImapRequestLineReader

java.lang.Object

com.icegreen.greenmail.imap.ImapRequestLineReader

public class ImapRequestLineReader
extends Object

Wraps the client input reader with a bunch of convenience methods, allowing lookahead=1 on the underlying character stream. TODO need to look at encoding, and whether we should be wrapping an InputStream instead.

Version:

$Revision: 109034 $

Author:

Darrell DeBoer

Constructor Summary

Constructors

Constructor and Description
ImapRequestLineReader(InputStream input, OutputStream output)

Method Summary

Modifier and Type	Method and Description
void	commandContinuationRequest() Sends a server command continuation request '+' back to the client, requesting more data to be sent.
char	consume() Consumes the current character in the reader, so that subsequent calls to the request will provide a new character.
char	consumeAll(char c) Consumes all given chars.
void	consumeLine() Consumes whole line till newline.
void	eol() Moves the request line reader to end of the line, checking that no non-space character are found.
char	nextChar() Reads the next character in the current line.
char	nextWordChar() Reads the next regular, non-space character in the current line.
void	read(byte[] holder) Reads and consumes a number of characters from the underlying reader, filling the byte array provided.

Methods inherited from class java.lang.Object

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

Constructor Detail

ImapRequestLineReader

public ImapRequestLineReader(InputStream input,
                             OutputStream output)

Method Detail

nextWordChar

public char nextWordChar()
                  throws ProtocolException

Reads the next regular, non-space character in the current line. Spaces are skipped over, but end-of-line characters will cause a ProtocolException to be thrown. This method will continue to return the same character until the consume() method is called.

Returns:

The next non-space character.

Throws:

ProtocolException - If the end-of-line or end-of-stream is reached.

nextChar

public char nextChar()
              throws ProtocolException

Reads the next character in the current line. This method will continue to return the same character until the consume() method is called.

Returns:

The next character.

Throws:

ProtocolException - If the end-of-stream is reached.

eol

public void eol()
         throws ProtocolException

Moves the request line reader to end of the line, checking that no non-space character are found.

Throws:

ProtocolException - If more non-space tokens are found in this line, or the end-of-file is reached.

consume

public char consume()
             throws ProtocolException

Consumes the current character in the reader, so that subsequent calls to the request will provide a new character. This method does *not* read the new character, or check if such a character exists. If no current character has been seen, the method moves to the next character, consumes it, and moves on to the subsequent one.

Throws:

ProtocolException - if a the current character can't be obtained (eg we're at end-of-file).

read

public void read(byte[] holder)
          throws ProtocolException

Reads and consumes a number of characters from the underlying reader, filling the byte array provided.

Parameters:

holder - A byte array which will be filled with bytes read from the underlying reader.

Throws:

ProtocolException - If a char can't be read into each array element.

commandContinuationRequest

public void commandContinuationRequest()
                                throws ProtocolException

Sends a server command continuation request '+' back to the client, requesting more data to be sent.

Throws:

ProtocolException

consumeLine

public void consumeLine()
                 throws ProtocolException

Consumes whole line till newline.

Throws:

ProtocolException - on error.

consumeAll

public char consumeAll(char c)
                throws ProtocolException

Consumes all given chars.

Returns:

next char

Throws:

ProtocolException - on error.