cern.cmw.mom.mapping

Class MappingService

java.lang.Object

cern.cmw.mom.mapping.MappingService

public final class MappingService
extends java.lang.Object

Service class. Provides mapping functionalities to :

• associate a class/device/property triplet to the corresponding topic
• associate a cycle selector to the corresponding subscription selector

The device topic namespace starts at CMW.DEVICES. Static field CYCLE_SELECTOR_PROPERTY determines the message string property that handles a cycle selector string.

Author:

Controls Middleware Project

See Also:

Publisher, Subscriber, TopicAdminHelper

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	CYCLE_SELECTOR_PROPERTY Static field that holds the property name to be used for filtering on cycle selector.

Constructor Summary

Constructors

Constructor and Description
MappingService()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	mapCycleSelectorToSelector(java.lang.String cycle) Static method to automatically create the message selector associated with the given cycle selector string
static java.lang.String	mapPropertyToTopic(java.lang.String deviceClass, java.lang.String deviceName, java.lang.String propertyName) Static method to automatically get the topic name associated with the triplet deviceClass, deviceName, propertyName

Methods inherited from class java.lang.Object

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

Field Detail

CYCLE_SELECTOR_PROPERTY

public static final java.lang.String CYCLE_SELECTOR_PROPERTY

Static field that holds the property name to be used for filtering on cycle selector.

See Also:

Constant Field Values

Constructor Detail

MappingService

public MappingService()

Method Detail

mapPropertyToTopic

public static java.lang.String mapPropertyToTopic(java.lang.String deviceClass,
                                                  java.lang.String deviceName,
                                                  java.lang.String propertyName)
                                           throws MOMException

Static method to automatically get the topic name associated with the triplet deviceClass, deviceName, propertyName

Parameters:

deviceClass - The device class

deviceName - The device name

propertyName - The property name

Returns:

String The topic associated to the triplet

Throws:

MOMException - A MOMException

mapCycleSelectorToSelector

public static java.lang.String mapCycleSelectorToSelector(java.lang.String cycle)
                                                   throws MOMException

Static method to automatically create the message selector associated with the given cycle selector string

Parameters:

cycle - The cycle selector string representation

Returns:

String The corresponding message selector. If cycle is null, the message selector filters on null CYCLE_SELECTOR_PROPERTY.

Throws:

MOMException - A MOMException