org.apache.directory.shared.ldap.message

Class MessageDecoder

java.lang.Object

org.apache.directory.shared.ldap.message.MessageDecoder

All Implemented Interfaces:

StatefulDecoder, ProviderDecoder, ProviderObject

public final class MessageDecoder
extends Object
implements ProviderDecoder

Decodes a BER encoded LDAPv3 message envelope from an input stream demarshaling it into a Message instance using a BER library provider.

Version:

$Rev: 903719 $

Author:

Apache Directory Project

Constructor Summary

Constructors

Constructor and Description
MessageDecoder(BinaryAttributeDetector binaryAttributeDetector) Creates a MessageDecoder using default properties for enabling a BER library provider.
MessageDecoder(BinaryAttributeDetector binaryAttributeDetector, int maxPDUSize) Creates a MessageDecoder using default properties for enabling a BER library provider.

Method Summary

Modifier and Type	Method and Description
void	decode(Object chunk) Decodes a chunk of stream data returning any resultant decoded PDU via a callback.
Object	decode(Object lock, InputStream in) Reads and decodes a BER encoded LDAPv3 ASN.1 message envelope structure from an input stream to build a fully populated Message object instance.
Provider	getProvider() Gets the Provider associated with this SPI implementation object.
void	setCallback(DecoderCallback cb) Sets the callback used to deliver completly decoded PDU's.
void	setDecoderMonitor(DecoderMonitor monitor) Sets the monitor for this MessageDecoder which receives callbacks for noteworthy events during decoding.

Methods inherited from class java.lang.Object

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

Constructor Detail

MessageDecoder

public MessageDecoder(BinaryAttributeDetector binaryAttributeDetector)
               throws MessageException

Creates a MessageDecoder using default properties for enabling a BER library provider.

Parameters:

binaryAttributeDetector - detects whether or not an attribute is binary

Throws:

MessageException - if there is a problem creating this decoder.

MessageDecoder

public MessageDecoder(BinaryAttributeDetector binaryAttributeDetector,
                      int maxPDUSize)
               throws MessageException

Creates a MessageDecoder using default properties for enabling a BER library provider.

Parameters:

binaryAttributeDetector - detects whether or not an attribute is binary

maxPDUSize - the maximum size a PDU can be

Throws:

MessageException - if there is a problem creating this decoder.

Method Detail

decode

public Object decode(Object lock,
                     InputStream in)
              throws MessageException

Reads and decodes a BER encoded LDAPv3 ASN.1 message envelope structure from an input stream to build a fully populated Message object instance.

Specified by:

decode in interface ProviderDecoder

Parameters:

lock - lock object used to exclusively read from the input stream

in - the input stream to read PDU data from.

Returns:

the populated Message representing the PDU envelope.

Throws:

MessageException - if there is a problem decoding.

decode

public void decode(Object chunk)
            throws MessageException

Decodes a chunk of stream data returning any resultant decoded PDU via a callback.

Specified by:

decode in interface StatefulDecoder

Parameters:

chunk - the chunk to decode

Throws:

MessageException - if there are failures while decoding the chunk

setCallback

public void setCallback(DecoderCallback cb)

Sets the callback used to deliver completly decoded PDU's.

Specified by:

setCallback in interface StatefulDecoder

Parameters:

cb - the callback to use for decoded PDU delivery

setDecoderMonitor

public void setDecoderMonitor(DecoderMonitor monitor)

Sets the monitor for this MessageDecoder which receives callbacks for noteworthy events during decoding.

Specified by:

setDecoderMonitor in interface StatefulDecoder

Parameters:

monitor - the monitor to receive notifications via callback events

getProvider

public Provider getProvider()

Description copied from interface: ProviderObject

Gets the Provider associated with this SPI implementation object.

Specified by:

getProvider in interface ProviderObject

Returns:

Provider.