org.rvpf.service.metadata

Class MetadataServiceImpl

Object

ServiceBaseImpl

ServiceImpl

MetadataServiceImpl

All Implemented Interfaces:

Runnable, Thread.UncaughtExceptionHandler, Alerter.Listener, MetadataService, Service, ServiceBase

Direct Known Subclasses:

MetadataServiceAppHolderImpl

@ThreadSafe
public abstract class MetadataServiceImpl
extends ServiceImpl
implements MetadataService

Metadata service implementation.

Field Summary

Fields inherited from class ServiceImpl

DEFAULT_JOIN_TIMEOUT, DEFAULT_RESTART_DELAY, DEFAULT_STARTING_EXTEND, DEFAULT_STOPPING_EXTEND, DEPENDENCY_PROPERTY, JOIN_TIMEOUT_PROPERTY, MEMORY_LOG_INTERVAL_PROPERTY, MONITOR_DISABLED_PROPERTY, RESTART_ALLOWED_PROPERTY, RESTART_DELAY_PROPERTY, RESTART_IGNORED_PROPERTY, SERVICE_LOG_ID_PROPERTY, SERVICE_UUID_PROPERTY, STARTING_EXTEND_PROPERTY, STARTUP_DELAY_PROPERTY, STATS_LOG_ENABLED_PROPERTY, STOPPING_EXTEND_PROPERTY, ZOMBIE_ENABLED_PROPERTY

Fields inherited from interface MetadataService

REFRESH_METADATA_SIGNAL

Fields inherited from interface Service

MIDNIGHT_EVENT, PING_SIGNAL, PONG_EVENT, RESTART_NOW_SIGNAL, RESTART_SIGNAL, RESUME_SIGNAL, RESUMED_EVENT, STARTED_EVENT, STOP_NOW_SIGNAL, STOP_SIGNAL, STOPPED_EVENT, SUSPEND_SIGNAL, SUSPENDED_EVENT, WATCHDOG_EVENT, ZOMBIE_EVENT

Constructor Summary

Constructors

Constructor and Description
MetadataServiceImpl()

Method Summary

Modifier and Type	Method and Description
Metadata	getMetadata() Gets the service metadata.
boolean	hasMetadata() Asks if the service has metadata.
boolean	loadMetadata(MetadataFilter filter) Loads the metadata.
void	monitorStores() Monitors stores.
protected boolean	onNewMetadata(Metadata metadata) Called on new metadata.
protected boolean	onSignal(Signal signal) Called when a signal has been received.
boolean	reloadMetadata() Reloads the metadata.
void	resetPointsStore() Resets the association of the points to their store.
protected void	tearDown() Tears down what has been set up.
protected void	tearDownConfig() Tears down the config.

Methods inherited from class ServiceImpl

addAlertListener, cancelRestarters, createStats, disableSuspend, doPendingActions, doRun, doStart, doStop, enableSuspend, exportAgent, fail, getAlerter, getConfig, getDataDir, getEntityName, getJoinTimeout, getMutex, getOptionalSourceUUID, getServiceActivator, getServiceUUID, getSourceUUID, isJMXRegistrationEnabled, isRunning, isStarted, isStopped, isStopping, isWait, isZombie, monitorService, onAlert, onEvent, onServicesNotReady, onServiceStartFailure, registerServer, removeAlertListener, restart, restoreConfigState, restoreMonitored, resume, run, saveConfigState, saveMonitored, sendAlert, sendEvent, sendSignal, setRestartEnabled, setRestartSignaled, setSourceUUID, setUp, starting, stopping, suspend, trySuspend, unregisterServer

Methods inherited from class ServiceBaseImpl

addStats, closeSnoozeAlarm, getLogID, getServiceActivatorBase, getServiceName, getStats, getThisLogger, getThread, getTimer, getVersion, interrupt, isCurrentThread, isThreadStarted, join, logStats, scheduleMidnightLogger, setLogID, setServiceActivatorBase, setServiceName, snooze, starting, startThread, startTimer, stopping, stopTimer, toString, uncaughtException, updateStats, wakeUp

Methods inherited from class Object

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

Methods inherited from interface Service

addAlertListener, disableSuspend, enableSuspend, exportAgent, getAlerter, getConfig, getDataDir, getEntityName, getJoinTimeout, getOptionalSourceUUID, getServiceActivator, getServiceUUID, getSourceUUID, isRunning, isStarted, isStopped, isStopping, isWait, isZombie, monitorService, registerServer, removeAlertListener, restart, restoreConfigState, restoreMonitored, resume, saveConfigState, saveMonitored, sendAlert, sendEvent, sendSignal, setRestartEnabled, setSourceUUID, starting, stopping, suspend, trySuspend, unregisterServer

Methods inherited from interface ServiceBase

addStats, fail, getServiceName, getStats, getTimer, isJMXRegistrationEnabled, snooze, starting, stopping, wakeUp

Methods inherited from interface Thread.UncaughtExceptionHandler

uncaughtException

Constructor Detail

MetadataServiceImpl

public MetadataServiceImpl()

Method Detail

getMetadata

public final Metadata getMetadata()

Gets the service metadata.

Promoted to public access to help the service tests.

Specified by:

getMetadata in interface MetadataService

Returns:

The metadata object.

hasMetadata

@CheckReturnValue
public final boolean hasMetadata()

Asks if the service has metadata.

Returns:

True If the service has metadata.

loadMetadata

public final boolean loadMetadata(MetadataFilter filter)

Loads the metadata.

Specified by:

loadMetadata in interface MetadataService

Parameters:

filter - The metadata filter.

Returns:

True on success.

monitorStores

public final void monitorStores()

Monitors stores.

Specified by:

monitorStores in interface MetadataService

reloadMetadata

public final boolean reloadMetadata()

Reloads the metadata.

Specified by:

reloadMetadata in interface MetadataService

Returns:

True on success.

resetPointsStore

public final void resetPointsStore()
                            throws ServiceNotAvailableException

Resets the association of the points to their store.

Specified by:

resetPointsStore in interface MetadataService

Throws:

ServiceNotAvailableException - When the service is not available.

onNewMetadata

@CheckReturnValue
protected boolean onNewMetadata(@Nonnull
                                                   Metadata metadata)

Called on new metadata.

Parameters:

metadata - The new metadata.

Returns:

False to reject the metadata.

onSignal

protected boolean onSignal(Signal signal)

Called when a signal has been received.

Caution: this is called while synchronized on mutex.

Overrides:

onSignal in class ServiceImpl

Parameters:

signal - The signal.

Returns:

False to inhibit further actions on the signal.

tearDown

protected void tearDown()

Tears down what has been set up.

Overrides:

tearDown in class ServiceImpl

tearDownConfig

protected void tearDownConfig()

Tears down the config.

Overrides:

tearDownConfig in class ServiceImpl