org.opengts.util
Class PosixSignalHandler

java.lang.Object
  org.opengts.util.PosixSignalHandler

public class PosixSignalHandler
extends java.lang.Object

Posix Signal Handler. This class requires the availability of the "sun.misc.SignalHandler" class for both compiling and running.

Field Summary

static java.lang.String	SIGNAL_ABRT
static java.lang.String	SIGNAL_HUP
static java.lang.String	SIGNAL_INT
static java.lang.String[]	SIGNAL_LIST
static java.lang.String	SIGNAL_TERM

Constructor Summary

PosixSignalHandler()
Constructor

PosixSignalHandler(java.lang.String... sigs)
Constructor

Method Summary

boolean	_handleSignal(java.lang.String sigName) set up a signal handler callback for the specified/named signal (should be one of "HUP", "INT"(^C), "ABRT", "TERM")
boolean	handleSignal(java.lang.String... sigNames) set up a signal handler callback for the specified/named signal (should be one of "HUP", "INT"(^C), "ABRT", "TERM")
static boolean	isValidSignalNames(java.lang.String... sigs)
static void	main(java.lang.String[] argv)
protected void	signal_ABRT() "ABRT" signal callback
protected void	signal_HUP() "HUP" signal callback
protected void	signal_INT() "INT" signal callback
protected void	signal_TERM() "TERM" signal callback
protected void	signal(java.lang.String sigName) overridable handler callback
boolean	sunSignalHandlerAvailable() Returns true if the "sun.misc.Signal" is available

Methods inherited from class java.lang.Object

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

Field Detail

SIGNAL_HUP

public static final java.lang.String SIGNAL_HUP

See Also:

Constant Field Values

SIGNAL_INT

public static final java.lang.String SIGNAL_INT

See Also:

Constant Field Values

SIGNAL_TERM

public static final java.lang.String SIGNAL_TERM

See Also:

Constant Field Values

SIGNAL_ABRT

public static final java.lang.String SIGNAL_ABRT

See Also:

Constant Field Values

SIGNAL_LIST

public static final java.lang.String[] SIGNAL_LIST

Constructor Detail

PosixSignalHandler

public PosixSignalHandler()

Constructor

PosixSignalHandler

public PosixSignalHandler(java.lang.String... sigs)
                   throws java.lang.IllegalArgumentException

Constructor

Parameters:

sigs - List of signals

Throws:

java.lang.IllegalArgumentException - if a specified signal name is invalid

Method Detail

isValidSignalNames

public static boolean isValidSignalNames(java.lang.String... sigs)

sunSignalHandlerAvailable

public boolean sunSignalHandlerAvailable()

Returns true if the "sun.misc.Signal" is available

Returns:

True if the "sun.misc.Signal" is available

handleSignal

public boolean handleSignal(java.lang.String... sigNames)
                     throws java.lang.IllegalArgumentException

set up a signal handler callback for the specified/named signal (should be one of "HUP", "INT"(^C), "ABRT", "TERM")

Parameters:

sigNames - List of signal names

Returns:

True if the signal was successfully handled, false if "sun.misc.Signal" is not available.

Throws:

java.lang.IllegalArgumentException - if a specified signal name is invalid

_handleSignal

public boolean _handleSignal(java.lang.String sigName)
                      throws java.lang.IllegalArgumentException

set up a signal handler callback for the specified/named signal (should be one of "HUP", "INT"(^C), "ABRT", "TERM")

Parameters:

sigName - The signal name

Returns:

True if the signal was successfully handled, false if "sun.misc.Signal" is not available.

Throws:

java.lang.IllegalArgumentException - if the specified signal name is invalid

signal

protected void signal(java.lang.String sigName)

overridable handler callback

signal_HUP

protected void signal_HUP()

"HUP" signal callback

signal_INT

protected void signal_INT()

"INT" signal callback

signal_ABRT

protected void signal_ABRT()

"ABRT" signal callback

signal_TERM

protected void signal_TERM()

"TERM" signal callback

main

public static void main(java.lang.String[] argv)