org.ka2ddo.yaac.core

Class SnifferDataModel

java.lang.Object

org.ka2ddo.yaac.core.SnifferDataModel

All Implemented Interfaces:

java.lang.Runnable, AprsMessageListener, AX25FrameListener, ParsedAX25MessageListener, ClearableTableModel

public final class SnifferDataModel
extends java.lang.Object
implements AX25FrameListener, AprsMessageListener, ParsedAX25MessageListener, java.lang.Runnable, ClearableTableModel

This class maintains a list of all messages heard by the application.

Author:

Andrew Pavlin, KA2DDO

Nested Class Summary

Nested classes/interfaces inherited from interface org.ka2ddo.yaac.util.ClearableTableModel

ClearableTableModel.ClearType

Field Summary

Fields

Modifier and Type	Field and Description
static Connector	LOGFILE_PLAYBACK_CONNECTOR Bogus Connector instance used to identify historical packets loaded from a log file.

Constructor Summary

Constructors

Constructor and Description
SnifferDataModel() Create the singleton SnifferDataModel that collects incoming packet traffic for tabular display.

Method Summary

Modifier and Type	Method and Description
void	addSnifferDataListener(SnifferDataListener l) Register a SnifferDataListener.
static void	addSnifferLogFilter(SnifferLogFilter filter) Register a SnifferLogFilter.
void	aprsMessageReceived(Message msg) Delivers the next packet received by YAAC that is an APRS message.
void	consumeAX25Frame(AX25Frame frame, Connector connector) Receive an incoming frame from the specified input Connector.
int	deleteAllRows(ClearableTableModel.ClearType clearType) Delete all rows from this table.
void	exportMessages(java.io.OutputStream o, PacketExportMode exportMode, boolean saveAll) Export packets passing the current filters in the SnifferDataModel to a file in the specified file format.
PacketExportMode	getLoggerFormat() Get the current format for AX.25 message logging.
AX25Frame	getMessage(int rowIndex) Get the Nth packet stored in the SnifferDataModel.
java.lang.String	getRecordTypeTag() Get a tag that can be given to the Localizer to return the term for the records to be or that have been deleted.
int	getRowCount() Get the number of packets currently stored in the SnifferDataModel.
void	importMessages(java.io.InputStream in, PacketExportMode exportMode, int scaleFactor, StatusListener statusListener, long fileSize, Filter filter) Import a file of AX.25 frames in any of three formats into YAAC.
void	parsedAX25MessageReceived(byte pid, AX25Message msg) Delivers the next message received by YAAC that is some sort of parsed AX.25 higher-level message.
void	removeSnifferDataListener(SnifferDataListener l) Unregister a SnifferDataListener.
static void	removeSnifferLogFilter(SnifferLogFilter filter) Unregister a SnifferLogFilter.
void	run() Do not call.
void	setLoggerFormat(PacketExportMode pem) Set the format for AX.25 message logging.
boolean	tableCanContainPlayback() Identifies whether this table can contain playback (historical) data.
boolean	tableCanContainRealtime() Identifies whether this table can contain realtime data.

Methods inherited from class java.lang.Object

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

Field Detail

LOGFILE_PLAYBACK_CONNECTOR

public static final Connector LOGFILE_PLAYBACK_CONNECTOR

Bogus Connector instance used to identify historical packets loaded from a log file.

Constructor Detail

SnifferDataModel

public SnifferDataModel()

Create the singleton SnifferDataModel that collects incoming packet traffic for tabular display.

Method Detail

getRowCount

public int getRowCount()

Get the number of packets currently stored in the SnifferDataModel.

Returns:

packet count

addSnifferDataListener

public void addSnifferDataListener(SnifferDataListener l)

Register a SnifferDataListener.

Parameters:

l - SnifferDataListener to register

removeSnifferDataListener

public void removeSnifferDataListener(SnifferDataListener l)

Unregister a SnifferDataListener.

Parameters:

l - SnifferDataListener to unregister

consumeAX25Frame

public void consumeAX25Frame(AX25Frame frame,
                             Connector connector)

Description copied from interface: AX25FrameListener

Receive an incoming frame from the specified input Connector. Note that the frame will not have any decoded AX25Message associated with it yet.

Specified by:

consumeAX25Frame in interface AX25FrameListener

Parameters:

frame - AX25Frame that was received

connector - Connector that was the source of the frame.

addSnifferLogFilter

public static void addSnifferLogFilter(SnifferLogFilter filter)

Register a SnifferLogFilter.

Parameters:

filter - SnifferLogFilter to register

removeSnifferLogFilter

public static void removeSnifferLogFilter(SnifferLogFilter filter)

Unregister a SnifferLogFilter.

Parameters:

filter - SnifferLogFilter to register

aprsMessageReceived

public void aprsMessageReceived(Message msg)

Delivers the next packet received by YAAC that is an APRS message.

Specified by:

aprsMessageReceived in interface AprsMessageListener

Parameters:

msg - some subclass of Message containing the message contents; the message should have an AX25Frame connected to it

See Also:

AX25Frame, AX25Message.ax25Frame, AX25Message.getAx25Frame()

parsedAX25MessageReceived

public void parsedAX25MessageReceived(byte pid,
                                      AX25Message msg)

Delivers the next message received by YAAC that is some sort of parsed AX.25 higher-level message.

Specified by:

parsedAX25MessageReceived in interface ParsedAX25MessageListener

Parameters:

pid - AX.25 protocol ID

msg - some subclass of Message containing the message contents; the message should have an AX25Frame connected to it

See Also:

AX25Frame, AX25Message.ax25Frame, AX25Message.getAx25Frame()

run

public void run()

Do not call. Invoked by GUI dispatch thread to update the GUI with recently received packets.

Specified by:

run in interface java.lang.Runnable

importMessages

public void importMessages(java.io.InputStream in,
                           PacketExportMode exportMode,
                           int scaleFactor,
                           StatusListener statusListener,
                           long fileSize,
                           Filter filter)
                    throws java.io.IOException

Import a file of AX.25 frames in any of three formats into YAAC.

Parameters:

in - InputStream to read the file data from

exportMode - expected format of the data stream

scaleFactor - the speed-up factor for simulated playback, or zero for as-fast-as-possible

statusListener - StatusListener to receive file reading progress reports, or null if not desired

fileSize - total length of file being read in

filter - Filter to use to discard unwanted messages, or null to keep all messages

Throws:

java.io.IOException - if file reading fails for an unexpected reason

exportMessages

public void exportMessages(java.io.OutputStream o,
                           PacketExportMode exportMode,
                           boolean saveAll)
                    throws java.io.IOException

Export packets passing the current filters in the SnifferDataModel to a file in the specified file format.

Parameters:

o - OutputStream to write the file data to

exportMode - PacketExportMode specifying the format of the saved packet data

saveAll - boolean true if filters should be ignored and all currently held packets should be saved

Throws:

java.io.IOException - if packets could not be written to the stream for any reason

getMessage

public AX25Frame getMessage(int rowIndex)

Get the Nth packet stored in the SnifferDataModel.

Parameters:

rowIndex - zero-based index of the AX25Frame to return

Returns:

AX25Frame

Throws:

java.lang.IndexOutOfBoundsException - if rowIndex is not in range of the available frames

getLoggerFormat

public PacketExportMode getLoggerFormat()

Get the current format for AX.25 message logging.

Returns:

PacketExportMode in use

setLoggerFormat

public void setLoggerFormat(PacketExportMode pem)

Set the format for AX.25 message logging.

Parameters:

pem - PacketExportMode to use

deleteAllRows

public int deleteAllRows(ClearableTableModel.ClearType clearType)

Delete all rows from this table.

Specified by:

deleteAllRows in interface ClearableTableModel

Parameters:

clearType - type of rows to delete

Returns:

number of rows deleted

tableCanContainPlayback

public boolean tableCanContainPlayback()

Identifies whether this table can contain playback (historical) data.

Specified by:

tableCanContainPlayback in interface ClearableTableModel

Returns:

boolean true if table can contain playback data.

tableCanContainRealtime

public boolean tableCanContainRealtime()

Identifies whether this table can contain realtime data.

Specified by:

tableCanContainRealtime in interface ClearableTableModel

Returns:

boolean true if table can contain realtime data.

getRecordTypeTag

public java.lang.String getRecordTypeTag()

Get a tag that can be given to the Localizer to return the term for the records to be or that have been deleted. Should translate to a plural term, i.e., "messages" rather than "message".

Specified by:

getRecordTypeTag in interface ClearableTableModel

Returns:

tag for looking up in a ResourceBundle