fish.payara.monitoring.store

Class InMemoryMonitoringDataRepository

java.lang.Object

fish.payara.monitoring.store.InMemoryMonitoringDataRepository

All Implemented Interfaces:

MonitoringDataRepository

@Service
 @RunLevel(value=10)
public class InMemoryMonitoringDataRepository
extends Object
implements MonitoringDataRepository

A simple in-memory store for a fixed size sliding window for each Series.

Consistency Remarks

The store uses two maps working like a doubled buffered image. While collection writes to the secondsWrite map request are served from the secondsRead map. This makes sure that a consistent dataset across all series can be used to create a consistent visualisation that isn't half updated while the response is composed. However this requires that callers are provided with a method that returns all the SeriesDatasets they need in a single method invocation. Making multiple calls to this stores methods does not guarantee a consistent dataset across all series since the swapLocalBuffer() can happen inbetween method calls.

Author:

Jan Bernitt

Constructor Summary

Constructors

Constructor and Description
InMemoryMonitoringDataRepository()

Method Summary

Modifier and Type	Method and Description
void	addRemoteDatasets(com.hazelcast.core.Message<fish.payara.monitoring.store.InMemoryMonitoringDataRepository.SeriesDatasetsSnapshot> message)
void	init()
Iterable<SeriesDataset>	selectAllSeries()
List<SeriesDataset>	selectSeries(Series series)

Methods inherited from class java.lang.Object

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

Constructor Detail

InMemoryMonitoringDataRepository

public InMemoryMonitoringDataRepository()

Method Detail

init

@PostConstruct
public void init()

addRemoteDatasets

public void addRemoteDatasets(com.hazelcast.core.Message<fish.payara.monitoring.store.InMemoryMonitoringDataRepository.SeriesDatasetsSnapshot> message)

selectSeries

public List<SeriesDataset> selectSeries(Series series)

Specified by:

selectSeries in interface MonitoringDataRepository

selectAllSeries

public Iterable<SeriesDataset> selectAllSeries()

Specified by:

selectAllSeries in interface MonitoringDataRepository