org.eclipse.scada.ae.monitor.datasource.common.remote

Class GenericRemoteMonitor

java.lang.Object

org.eclipse.scada.da.master.AbstractMasterHandlerImpl

org.eclipse.scada.ae.monitor.datasource.common.remote.GenericRemoteMonitor

All Implemented Interfaces:

MonitorService, MasterItemHandler

Direct Known Subclasses:

RemoteBooleanAttributeAlarmMonitor, RemoteBooleanValueAlarmMonitor

public abstract class GenericRemoteMonitor
extends AbstractMasterHandlerImpl
implements MonitorService

Field Summary

Fields

Modifier and Type	Field and Description
protected EventProcessor	eventProcessor
protected Executor	executor
protected String	id
protected MonitorStatus	state
protected Date	timestamp

Fields inherited from class org.eclipse.scada.da.master.AbstractMasterHandlerImpl

eventAttributes

Constructor Summary

Constructors

Constructor and Description
GenericRemoteMonitor(org.osgi.framework.BundleContext context, Executor executor, ObjectPoolTracker<MasterItem> poolTracker, int priority, String id, EventProcessor eventProcessor)

Method Summary

Modifier and Type	Method and Description
void	addStatusListener(MonitorListener listener)
protected Event.EventBuilder	createEventBuilder() Create a pre-filled event builder
void	dataUpdate(Map<String,Object> context, DataItemValue.Builder value) Called when data changed or the handler chain changed.
void	dispose()
String	getId()
protected Map<String,Variant>	getMonitorAttributes()
protected static Calendar	getTimestamp(DataItemValue.Builder itemValue, String attributeName)
protected abstract void	handleUpdate(DataItemValue.Builder itemValue)
protected DataItemValue.Builder	injectState(DataItemValue.Builder builder)
Long	makeTimestamp(Date date)
protected void	nodeChanged(DataNode node)
protected void	publishAckRequestEvent(UserInformation user, Date aknTimestamp)
void	removeStatusListener(MonitorListener listener)
protected void	reprocess()
protected void	setState(MonitorStatus state)
protected void	setState(MonitorStatus state, Date timestamp, Date aknTimestamp)
protected void	setStore(DataStore store)

Methods inherited from class org.eclipse.scada.da.master.AbstractMasterHandlerImpl

addItem, createTrackers, getMasterItems, processWrite, removeItem, update

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.scada.ae.monitor.MonitorService

akn

Field Detail

id

protected final String id

state

protected MonitorStatus state

timestamp

protected Date timestamp

eventProcessor

protected final EventProcessor eventProcessor

executor

protected final Executor executor

Constructor Detail

GenericRemoteMonitor

public GenericRemoteMonitor(org.osgi.framework.BundleContext context,
                            Executor executor,
                            ObjectPoolTracker<MasterItem> poolTracker,
                            int priority,
                            String id,
                            EventProcessor eventProcessor)

Method Detail

nodeChanged

protected void nodeChanged(DataNode node)

setStore

protected void setStore(DataStore store)

dispose

public void dispose()

Overrides:

dispose in class AbstractMasterHandlerImpl

getId

public String getId()

Specified by:

getId in interface MonitorService

setState

protected void setState(MonitorStatus state)

setState

protected void setState(MonitorStatus state,
                        Date timestamp,
                        Date aknTimestamp)

getTimestamp

protected static Calendar getTimestamp(DataItemValue.Builder itemValue,
                                       String attributeName)

handleUpdate

protected abstract void handleUpdate(DataItemValue.Builder itemValue)

dataUpdate

public void dataUpdate(Map<String,Object> context,
                       DataItemValue.Builder value)

Description copied from interface: MasterItemHandler

Called when data changed or the handler chain changed.

The call gets a context object provided which each handler can use to store context information of one calculation run. Each calculation run gets a fresh new context. The context is intended to pass data from one handler to the next.

Although the value parameter is a mutable type, the handler may only make changes inside the dataUpdate method.

Specified by:

dataUpdate in interface MasterItemHandler

Specified by:

dataUpdate in class AbstractMasterHandlerImpl

Parameters:

context - the context object

value - the changed value

makeTimestamp

public Long makeTimestamp(Date date)

getMonitorAttributes

protected Map<String,Variant> getMonitorAttributes()

createEventBuilder

protected Event.EventBuilder createEventBuilder()

Create a pre-filled event builder

Returns:

a new event builder

publishAckRequestEvent

protected void publishAckRequestEvent(UserInformation user,
                                      Date aknTimestamp)

injectState

protected DataItemValue.Builder injectState(DataItemValue.Builder builder)

addStatusListener

public void addStatusListener(MonitorListener listener)

Specified by:

addStatusListener in interface MonitorService

removeStatusListener

public void removeStatusListener(MonitorListener listener)

Specified by:

removeStatusListener in interface MonitorService

reprocess

protected void reprocess()

Overrides:

reprocess in class AbstractMasterHandlerImpl