public class LatencyStoringServiceMonitorAdaptor extends Object implements ServiceMonitor
LatencyStoringServiceMonitorAdaptor class.
Modifier and Type | Field and Description |
---|---|
static String |
DEFAULT_BASENAME
Constant
DEFAULT_BASENAME="response-time" |
static int |
HEARTBEAT_STEP_MULTIPLIER |
Constructor and Description |
---|
LatencyStoringServiceMonitorAdaptor(ServiceMonitor monitor,
PollerConfig config,
Package pkg,
PersisterFactory persisterFactory,
ResourceStorageDao resourceStorageDao)
Constructor for LatencyStoringServiceMonitorAdaptor.
|
Modifier and Type | Method and Description |
---|---|
void |
initialize(Map<String,Object> parameters)
This method is called after the framework creates an instance of the
plug-in.
|
void |
initialize(MonitoredService svc)
initialize
|
PollStatus |
poll(MonitoredService svc,
Map<String,Object> parameters)
This method is the heart of the plug-in monitor.
|
void |
refreshThresholds()
Should be called when thresholds configuration has been reloaded
|
void |
release()
release
|
void |
release(MonitoredService svc)
This method is the called whenever an interface is being removed from the
scheduler.
|
public static final String DEFAULT_BASENAME
DEFAULT_BASENAME="response-time"
public static final int HEARTBEAT_STEP_MULTIPLIER
public LatencyStoringServiceMonitorAdaptor(ServiceMonitor monitor, PollerConfig config, Package pkg, PersisterFactory persisterFactory, ResourceStorageDao resourceStorageDao)
Constructor for LatencyStoringServiceMonitorAdaptor.
monitor
- a ServiceMonitor
object.config
- a PollerConfig
object.pkg
- a Package
object.public void initialize(Map<String,Object> parameters)
This method is called after the framework creates an instance of the plug-in. The framework passes the object a proxy object that can be used to retrieve configuration information specific to the plug-in. Additionally, any parameters for the plug-in from the package definition are passed using the parameters element.
If there is a critical error, like missing service libraries, the the Monitor may throw a ServiceMonitorException. If the plug-in throws an exception then the plug-in will be disabled in the framework.
initialize
in interface ServiceMonitor
parameters
- Not currently usedpublic void initialize(MonitoredService svc)
initialize
initialize
in interface ServiceMonitor
svc
- a MonitoredService
object.public PollStatus poll(MonitoredService svc, Map<String,Object> parameters)
This method is the heart of the plug-in monitor. Each time an interface requires a check to be performed as defined by the scheduler the poll method is invoked. The poll is passed the interface to check
By default when the status transition from up to down or vice versa the framework will generate an event. Additionally, if the polling interval changes due to an extended unavailability, the framework will generate an additional down event. The plug-in can suppress the generation of the default events by setting the suppress event bit in the returned integer.
poll
in interface ServiceMonitor
svc
- TODOparameters
- The package parameters (timeout, retry, etc...) to be used for
this poll.PollStatus.SERVICE_AVAILABLE
,
PollStatus.SERVICE_UNAVAILABLE
,
PollStatus.SERVICE_AVAILABLE
,
PollStatus.SERVICE_UNAVAILABLE
public void release()
release
release
in interface ServiceMonitor
public void release(MonitoredService svc)
This method is the called whenever an interface is being removed from the scheduler. For example, if a service is determined as being no longer supported then this method will be invoked to cleanup any information associated with this device. This gives the implementor of the interface the ability to serialize any data prior to the interface being discarded.
If an exception is thrown during the release the exception will be logged, but the interface will still be discarded for garbage collection.
release
in interface ServiceMonitor
svc
- TODOpublic void refreshThresholds()
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