context.arch.widget
Class WPresenceGroup

java.lang.Object
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  +--context.arch.BaseObject
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        +--context.arch.widget.Widget
              |
              +--context.arch.widget.WPersonPresence
                    |
                    +--context.arch.widget.WPresenceGroup

public class WPresenceGroup

extends WPersonPresence

This class is a context widget that provides information on the preferences of a person whose presence has been detected at a specified location. In particular, this information is the user id (IButton id), location, and group. It has the following callbacks: UPDATE. It supports polling and subscriptions. It subscribes to a WPersonPresence at the the specified location and uses the IIButton2Group.

See Also:

Widget, WPersonPresence, IIButton2Group

Field Summary

static java.lang.String	CLASSNAME Name of widget
static int	DEFAULT_PORT Default port to run this widget on is 5500
static java.lang.String	GROUP Tag for url of user's homepage
java.lang.String	VERSION_NUMBER Widget version number

Fields inherited from class context.arch.widget.WPersonPresence

ANIND_OFFICE, CLASSNAME, COMMON_AREA, DANIEL_OFFICE, DEFAULT_PORT, FCL, GREGORY_OFFICE, ibutton, LOCATION, USERID, VERSION_NUMBER

Fields inherited from class context.arch.widget.Widget

attributes, attributeTypes, callbacks, CLASS, CurrentOffset, DEFAULT_PORT, id, PUT_DATA, PUT_DATA_REPLY, QUERY, QUERY_ATTRIBUTES, QUERY_ATTRIBUTES_REPLY, QUERY_CALLBACKS, QUERY_CALLBACKS_REPLY, QUERY_REPLY, QUERY_SERVICES, QUERY_SERVICES_REPLY, QUERY_VERSION, QUERY_VERSION_REPLY, services, SPACER, storage, subscribers, TIMESTAMP, UPDATE, UPDATE_AND_QUERY, UPDATE_AND_QUERY_REPLY, VERSION, VERSION_NUMBER

Fields inherited from class context.arch.BaseObject

communications, EXIT_OK, handlers, ID, parser, PING, PING_REPLY, serviceHandlers

Constructor Summary

WPresenceGroup(java.lang.String location, int localport, java.lang.String ihost, int iport)
Constructor that creates the widget at the given location and monitors communications on the given port.

WPresenceGroup(java.lang.String location, int localport, java.lang.String ihost, int iport, boolean storageFlag)
Constructor that creates the widget at the given location and monitors communications on the given port.

WPresenceGroup(java.lang.String location, java.lang.String ihost, int iport)
Constructor that creates the widget at the given location and monitors communications on the DEFAULT_PORT.

WPresenceGroup(java.lang.String location, java.lang.String ihost, int iport, boolean storageFlag)
Constructor that creates the widget at the given location and monitors communications on the DEFAULT_PORT.

Method Summary

protected AttributeNameValues	IButtonData2Attributes(IButtonData data) This method converts the IButtonData object to an Attributes object.
static void	main(java.lang.String[] argv) Temporary main method to create a widget with id and port and connection to other low level widgets specified by command line arguments
protected Attributes	setAttributes() This method implements the abstract method Widget.setAttributes().
protected Callbacks	setCallbacks() This method implements the abstract method Widget.setCallbacks().

Methods inherited from class context.arch.widget.WPersonPresence

notify, queryGenerator, setServices

Methods inherited from class context.arch.widget.Widget

addSubscriber, canHandle, canHandle, canHandle, canHandle, executeService, getAttributeType, getCurrentTime, getNewOffset, getNewOffsetNoDelay, isAttribute, isCallback, processCallbackReply, putData, queryAttributes, queryCallbacks, queryServices, queryWidget, removeSubscriber, retrieveData, runUserMethod, runWidgetMethod, sendToSubscribers, setAttribute, store, store, updateWidgetInformation

Methods inherited from class context.arch.BaseObject

askInterpreter, decodeData, encodeData, executeAsynchronousWidgetService, executeSynchronousWidgetService, getHostAddress, getId, getVersion, getVersion, getWidgetAttributes, getWidgetCallbacks, getWidgetServices, pingComponent, pollWidget, putDataInWidget, queryVersion, quit, retrieveDataFrom, retrieveDataFrom, retrieveDataFrom, retrieveDataFrom, retrieveDataFrom, retrieveDataFrom, retrieveDataFrom, returnPing, runComponentMethod, runMethod, serviceResult, setId, setVersion, subscribeTo, subscribeTo, subscribeTo, subscribeTo, unsubscribeFrom, updateAndPollWidget, userCallback, userRequest, userRequest, userRequest

Methods inherited from class java.lang.Object

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

Field Detail

VERSION_NUMBER

public java.lang.String VERSION_NUMBER

Widget version number

CLASSNAME

public static final java.lang.String CLASSNAME

Name of widget

GROUP

public static final java.lang.String GROUP

Tag for url of user's homepage

DEFAULT_PORT

public static final int DEFAULT_PORT

Default port to run this widget on is 5500

Constructor Detail

WPresenceGroup

public WPresenceGroup(java.lang.String location,
                      java.lang.String ihost,
                      int iport)

Constructor that creates the widget at the given location and monitors communications on the DEFAULT_PORT. It sets the id of this widget to CLASSNAME_ and enables storage.

Parameters:

location - Location the widget is "monitoring"

ihost - Name of the machine the IButton2Group interpreter is running on

iport - Port number the IButton2Group interpreter is running on

See Also:

WPersonPresence

WPresenceGroup

public WPresenceGroup(java.lang.String location,
                      java.lang.String ihost,
                      int iport,
                      boolean storageFlag)

Constructor that creates the widget at the given location and monitors communications on the DEFAULT_PORT. It sets the id of this widget to CLASSNAME_ and sets storage to storageFlag.

Parameters:

location - Location the widget is "monitoring"

ihost - Name of the machine the IButton2Group interpreter is running on

iport - Port number the IButton2Group interpreter is running on

storageFlag - Flag to set storage functionality to

See Also:

WPersonPresence

WPresenceGroup

public WPresenceGroup(java.lang.String location,
                      int localport,
                      java.lang.String ihost,
                      int iport)

Constructor that creates the widget at the given location and monitors communications on the given port. It sets the id of this widget to CLASSNAME_ and enables storage.

Parameters:

location - Location the widget is "monitoring"

localport - Port number this widget is running on

ihost - Name of the machine the IIButton2Group is running on

iport - Port number the IIButton2Group is running on

See Also:

WPersonPresence

WPresenceGroup

public WPresenceGroup(java.lang.String location,
                      int localport,
                      java.lang.String ihost,
                      int iport,
                      boolean storageFlag)

Constructor that creates the widget at the given location and monitors communications on the given port. It sets the id of this widget to CLASSNAME_ and sets storage functionality to storageFlag.

Parameters:

location - Location the widget is "monitoring"

localport - Port number this widget is running on

ihost - Name of the machine the IIButton2Group is running on

iport - Port number the IIButton2Group is running on

storageFlag - Flag to indicate whether or not to enable storage

See Also:

WPersonPresence

Method Detail

setAttributes

protected Attributes setAttributes()

This method implements the abstract method Widget.setAttributes(). It defines the attributes for the widget as: TIMESTAMP, USERID, LOCATION, and GROUP

Overrides:

setAttributes in class WPersonPresence

Returns:

the Attributes used by this widget

setCallbacks

protected Callbacks setCallbacks()

This method implements the abstract method Widget.setCallbacks(). It defines the callbacks for the widget as: UPDATE with the attributes TIMESTAMP, USERID, LOCATION, GROUP

Overrides:

setCallbacks in class WPersonPresence

Returns:

the Callbacks used by this widget

IButtonData2Attributes

protected AttributeNameValues IButtonData2Attributes(IButtonData data)

This method converts the IButtonData object to an Attributes object. It overrides the method in WPersonPresence, basically doing the same thing, except it also uses an interpreter to convert the USERID to a GROUP

Overrides:

IButtonData2Attributes in class WPersonPresence

Parameters:

data - IButtonData object to be converted

Returns:

Attributes object containing the data in the IButtonData object

main

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

Temporary main method to create a widget with id and port and connection to other low level widgets specified by command line arguments