alma::acsplugins::alarmsystem::gui::sound::AlarmSound Class Reference

Inheritance diagram for alma::acsplugins::alarmsystem::gui::sound::AlarmSound:

Collaboration diagram for alma::acsplugins::alarmsystem::gui::sound::AlarmSound:

Public Member Functions
	AlarmSound (AlarmTableModel model)
void	inhibit (int level)
int	getSoundLevel ()
void	close ()
void	run ()
void	addSoundListener (AlarmSoundListener listener)
Private Member Functions
void	play (int priority) throws Exception
void	playOnLine (SourceDataLine line, AudioInputStream audioIStream)
void	dumpAudioInformation ()
Private Attributes
final AlarmTableModel	tableModel
final int	EXTERNAL_BUFFER_SIZE = 524288
int	soundLevel = 3
int	inhibitCounter = 0
final Timer	timer = new Timer("AlarmSound",true)
boolean	closed = false
volatile AlarmSoundListener	listener = null
Static Private Attributes
static final int	TIME_INTERVAL = 60
static final int	INHIBIT_TIME = 15
static final URL[]	soundURLs

Detailed Description

A class to play sounds for alarms.

The class emits a sound every TIME_INTERVAL seconds if the table contains alarms not seen by the user. The sound depends on the highest priority of the alarms not seen i.e. every priority has its own specific sound.

It is possible to inhibit the sound for a given period of time, INHIBIT_TIME. After INHIBIT_TIME seconds, the sounds will be re-enabled.

In case of error playing a sound, objects of this class do nothing because we do not want to trigger a failure in the application neither to present a dialog to the operator. Apart of that, if the audio system is in use by another application then it might happen that it is not possible to reserve a new line and play the sound.;

Note: after testing in tf-ohg I have found that the STE sound environment is quite problematic. for example in my account there were 4 mixers but I have tried another one that add only one and in that case it was not possible to find a line to play the sound. With my account, even with 4 mixers available the process was able to play the sound but not in the speakers.
To limit the risk that the sound is played in the wrong device or that the line obtained by default is not available because locked by another application and so n, I decided to play the sound in all available devices with the risk to play it twice.

Author:: acaproni

Since:: ACS 8.1.0

Constructor & Destructor Documentation

alma::acsplugins::alarmsystem::gui::sound::AlarmSound::AlarmSound ( AlarmTableModel model ) [inline]

Constructor

Parameters:

model

The table model

References dumpAudioInformation(), tableModel, TIME_INTERVAL, and timer.

Member Function Documentation

void alma::acsplugins::alarmsystem::gui::sound::AlarmSound::addSoundListener ( AlarmSoundListener listener ) [inline]

Add or remove a listener

Parameters:

listener If not null add the listener; otherwise remove the listener

Referenced by alma::acsplugins::alarmsystem::gui::toolbar::SoundWidget::SoundWidget().

void alma::acsplugins::alarmsystem::gui::sound::AlarmSound::close ( ) [inline]

Close the timer.

References closed, listener, and timer.

Referenced by alma::acsplugins::alarmsystem::gui::CernSysPanel::close().

void alma::acsplugins::alarmsystem::gui::sound::AlarmSound::dumpAudioInformation ( ) [inline, private]

Dump info about supported audio, file types and so on...

This method is useful while updating the audio files.

References soundURLs.

Referenced by AlarmSound().

int alma::acsplugins::alarmsystem::gui::sound::AlarmSound::getSoundLevel ( ) [inline]

Return the inhibit sound level

Returns:: thethe inhibit sound level

See also:: AlarmSound#soundLevel

References soundLevel.

void alma::acsplugins::alarmsystem::gui::sound::AlarmSound::inhibit ( int level ) [inline]

Set the level of the alarm to which a sound has to be played.

Parameters:

level

The new level of the sound to play; level must be in the same range of AlarmSound#soundLevel.

See also:: AlarmSound#soundLevel

References inhibitCounter, and soundLevel.

Referenced by alma::acsplugins::alarmsystem::gui::toolbar::SoundWidget::toggleSoundButton().

void alma::acsplugins::alarmsystem::gui::sound::AlarmSound::play ( int priority ) throws Exception [inline, private]

Play the sound for the given priority

Parameters:

priority

The priority of the alarm

References EXTERNAL_BUFFER_SIZE, playOnLine(), and soundURLs.

Referenced by run().

void alma::acsplugins::alarmsystem::gui::sound::AlarmSound::playOnLine	(	SourceDataLine	line,
		AudioInputStream	audioIStream
	)			`[inline, private]`

Play the sound using the passed line.

Parameters:

	line
	audioIStream

References EXTERNAL_BUFFER_SIZE.

Referenced by play().

void alma::acsplugins::alarmsystem::gui::sound::AlarmSound::run ( ) [inline]

The task to emit the sound.

References alma::acsplugins::alarmsystem::gui::table::AlarmTableModel::hasNotAckAlarms(), INHIBIT_TIME, inhibitCounter, listener, play(), alma::acsplugins::alarmsystem::gui::sound::AlarmSoundListener::played(), alma::acsplugins::alarmsystem::gui::sound::AlarmSoundListener::playing(), soundLevel, and tableModel.

Member Data Documentation

boolean alma::acsplugins::alarmsystem::gui::sound::AlarmSound::closed = false [private]

true if the object has been close.

Referenced by close().

final int alma::acsplugins::alarmsystem::gui::sound::AlarmSound::EXTERNAL_BUFFER_SIZE = 524288 [private]

The size of the buffer

Referenced by play(), and playOnLine().

final int alma::acsplugins::alarmsystem::gui::sound::AlarmSound::INHIBIT_TIME = 15 [static, private]

Inhibit the sound for the given amount of seconds.

The INHIBIT_TIME is a multiple of TIME_INTERVAL.

Referenced by run().

int alma::acsplugins::alarmsystem::gui::sound::AlarmSound::inhibitCounter = 0 [private]

The counter to re-enable the level

It is reset to 0 when a new level is selected or after INHIBIT_CONTER seconds.

Referenced by inhibit(), and run().

volatile AlarmSoundListener alma::acsplugins::alarmsystem::gui::sound::AlarmSound::listener = null [private]

A listener for sound events.

This class supports only one listener; if more then one listener is added then only the last one will be notified.

Referenced by close(), and run().

int alma::acsplugins::alarmsystem::gui::sound::AlarmSound::soundLevel = 3 [private]

Objects of this class plays a sound when the priority of an unseen alarm is equal or less then soundLevel appears in the table.

It is not possible to inhibit alarms having priority 0 or 1 therefore this property can only have values in range [1-3]

Referenced by getSoundLevel(), inhibit(), and run().

final URL [] alma::acsplugins::alarmsystem::gui::sound::AlarmSound::soundURLs [static, private]

Initial value:

 {
                AlarmSound.class.getResource("/alma/acsplugins/alarmsystem/gui/sound/resources/level0.wav"),
                AlarmSound.class.getResource("/alma/acsplugins/alarmsystem/gui/sound/resources/level1.wav"),
                AlarmSound.class.getResource("/alma/acsplugins/alarmsystem/gui/sound/resources/level2.wav"),
                AlarmSound.class.getResource("/alma/acsplugins/alarmsystem/gui/sound/resources/level3.wav")
        }

The URLs of the sounds to play.

The index of the array correspond to the level of the alarm i.e. for alarms with level=0 the sound to play is soundURLs[0].

Referenced by dumpAudioInformation(), and play().

final AlarmTableModel alma::acsplugins::alarmsystem::gui::sound::AlarmSound::tableModel [private]

The table model

Referenced by AlarmSound(), and run().

final int alma::acsplugins::alarmsystem::gui::sound::AlarmSound::TIME_INTERVAL = 60 [static, private]

A sound is emitted every TIME_INTERVAL seconds

Referenced by AlarmSound().

final Timer alma::acsplugins::alarmsystem::gui::sound::AlarmSound::timer = new Timer("AlarmSound",true) [private]

The timer to emit the sound

Referenced by AlarmSound(), and close().