Package org.scictrl.csshell.epics.server.application

Class RunningCounterApplication

java.lang.Object

org.scictrl.csshell.epics.server.application.AbstractApplication

org.scictrl.csshell.epics.server.application.RunningCounterApplication

All Implemented Interfaces:

Application, OnDemandValueProcessor.ValueProvider

public class RunningCounterApplication
extends AbstractApplication

RunningCounterApplication calculates average of input value updates based on defined time window. Valid values are accepted into calculation, based on strict or relaxed option.

If newest value timestamp is newer than current time minus time interval, then interval is set from newest timestamp. This helps counter if there is time shift between timestamps and local clock and if updates are fairly irregular. If newest recorded timestamp is older than current time minus interval, then it is taken out.

Author:

igor@scictrl.com

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	RunningCounterApplication.AverageCalculator	Calculates average and other statistics on predefine time window.

Field Summary

Fields inherited from class org.scictrl.csshell.epics.server.application.AbstractApplication

database, DEFAULT_NAME_DELIMITER, dynamicRecordCreator, ERROR_SUM, LINK_ERROR, LINK_ERROR_STRING, links, log, name, NAME_DELIMITER, nameDelimiter, records

Constructor Summary

Constructors

Constructor	Description
RunningCounterApplication()	Constructor for RunningCounterApplication.

Method Summary

Modifier and Type	Method	Description
void	activate()	Application has now reference to Database.
void	configure(String name, org.apache.commons.configuration.HierarchicalConfiguration config)	Configures the internals of this application, provides reference to configuration with root inside applications tag.
protected void	notifyRecordChange(String name, boolean alarmOnly)	This method is called whenever record value changed for any record, which belongs to this application (it was added to the application AbstractApplication.addRecord(String, Record)).
protected void	notifyRecordWrite(String name)	This method is called whenever record value has been written for any record, which belongs to this application (it was added to the application AbstractApplication.addRecord(String, Record)).
protected void	updateLinkError(gov.aps.jca.dbr.Severity severity, gov.aps.jca.dbr.Status status)	updateLinkError.

Methods inherited from class org.scictrl.csshell.epics.server.application.AbstractApplication

addRecord, addRecordOfCommandProcessor, addRecordOfMemoryValueProcessor, addRecordOfMemoryValueProcessor, addRecordOfMemoryValueProcessor, addRecordOfMemoryValueProcessor, addRecordOfMemoryValueProcessor, addRecordOfMemoryValueProcessor, addRecordOfMemoryValueProcessor, addRecordOfMemoryValueProcessor, addRecordOfMemoryValueProcessor, addRecordOfOnDemandProcessor, addRecordOfOnLinkValueProcessor, configure, connectLinks, createNewStore, fullRecordName, getLinks, getName, getNameDelimiter, getNotNull, getRecord, getRecordErrorSum, getRecordLinkError, getRecordNames, getRecords, getStore, getStore, getValue, initialize, isActivated, isDynamicRecordCreator, log4debug, log4error, log4error, log4info, notifyLinkChange, processLinkChange, pushDoneCommandProcessor, reconnectLinks, resetOnDemandProcessor, restore, store, toString, updateErrorSum, updateErrorSum, updateLinkError, updateLinkError

Methods inherited from class java.lang.Object

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

Constructor Details

RunningCounterApplication

public RunningCounterApplication()

Constructor for RunningCounterApplication.

Method Details

configure

public void configure(String name,
 org.apache.commons.configuration.HierarchicalConfiguration config)

Configures the internals of this application, provides reference to configuration with root inside applications tag. Server structure is not yet initialized, so does not have reference to Database, the Database reference will be available during activate call.

Specified by:

configure in interface Application

Overrides:

configure in class AbstractApplication

Parameters:

name - a String object

config - configuration with room inside application tag.

activate

public void activate()

Application has now reference to Database. Application might want to connect to other records on this server or PVs on other servers. This can not be done until all records from configuration has been loaded. Call to this method signals application that records has been loaded and linking to other values can be commenced.

Specified by:

activate in interface Application

Overrides:

activate in class AbstractApplication

updateLinkError

protected void updateLinkError(gov.aps.jca.dbr.Severity severity,
 gov.aps.jca.dbr.Status status)

updateLinkError.

Parameters:

severity - a Severity object

status - a Status object

notifyRecordChange

protected void notifyRecordChange(String name,
 boolean alarmOnly)

This method is called whenever record value changed for any record, which belongs to this application (it was added to the application AbstractApplication.addRecord(String, Record)). Implementation class should override this method to intercept the update.

Overrides:

notifyRecordChange in class AbstractApplication

Parameters:

name - the name of record, that triggered change.

alarmOnly - if true then only alarm has been changed

notifyRecordWrite

protected void notifyRecordWrite(String name)

This method is called whenever record value has been written for any record, which belongs to this application (it was added to the application AbstractApplication.addRecord(String, Record)). Implementation class should override this method to intercept the update.

Overrides:

notifyRecordWrite in class AbstractApplication

Parameters:

name - the name of record, that triggered change.