com.airs.handlers

Class AudioHandler

java.lang.Object

com.airs.handlers.AudioHandler

All Implemented Interfaces:

Handler

public class AudioHandler
extends Object
implements Handler

Class to read audio-related sensors, specifically the AS and AF sensor

See Also:

Handler

Constructor Summary

Constructors

Constructor and Description
AudioHandler(Context airs) Constructor, allocating all necessary resources for the handler Here, reading the various RMS values of the preferences Then, determining the minimal buffer size for the recording Then, creating an AudioPlayer just to see if it works (tear it down again right after creation)

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	Acquire(String sensor, String query) Method to acquire sensor data
void	destroyHandler() Method to release all handler resources Here, we stop any playing AudioPlayer and release its resources
void	Discover() Method to discover the sensor symbols support by this handler As the result of the discovery, appropriate Sensor entries will be added to the SensorRepository
void	History(String sensor) Method to view historical chart of the given sensor symbol
String	Share(String sensor) Method to share the last value of the given sensor

Methods inherited from class java.lang.Object

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

Constructor Detail

AudioHandler

public AudioHandler(Context airs)

Constructor, allocating all necessary resources for the handler Here, reading the various RMS values of the preferences Then, determining the minimal buffer size for the recording Then, creating an AudioPlayer just to see if it works (tear it down again right after creation)

Parameters:

airs - Reference to the calling Context

Method Detail

Acquire

public byte[] Acquire(String sensor,
             String query)

Method to acquire sensor data

Specified by:

Acquire in interface Handler

Parameters:

sensor - String of the sensor symbol

query - String of the query to be fulfilled - not used here

See Also:

Handler.Acquire(java.lang.String, java.lang.String)

Share

public String Share(String sensor)

Method to share the last value of the given sensor

Specified by:

Share in interface Handler

Parameters:

sensor - String of the sensor symbol to be shared

Returns:

human-readable string of the last sensor value

See Also:

Handler.Share(java.lang.String)

History

public void History(String sensor)

Method to view historical chart of the given sensor symbol

Specified by:

History in interface Handler

Parameters:

sensor - String of the symbol for which the history is being requested

See Also:

Handler.History(java.lang.String)

Discover

public void Discover()

Method to discover the sensor symbols support by this handler As the result of the discovery, appropriate Sensor entries will be added to the SensorRepository

Specified by:

Discover in interface Handler

See Also:

Handler.Discover(), Sensor, SensorRepository

destroyHandler

public void destroyHandler()

Method to release all handler resources Here, we stop any playing AudioPlayer and release its resources

Specified by:

destroyHandler in interface Handler

See Also:

Handler.destroyHandler()