org.rhq.core.pluginapi.event

Interface EventContext

public interface EventContext

Author:

Ian Springer

Field Summary

Fields

Modifier and Type	Field and Description
static int	MINIMUM_POLLING_INTERVAL Minimum polling interval, in seconds.

Method Summary

Methods

Modifier and Type	Method and Description
org.hyperic.sigar.SigarProxy	getSigar() Gets an instance of Sigar.
void	publishEvent(org.rhq.core.domain.event.Event event) Publishes the specified Event.
void	registerEventPoller(EventPoller poller, int pollingInterval) Tells the plugin container to start polling for Events using the specified EventPoller.
void	registerEventPoller(EventPoller poller, int pollingInterval, String sourceLocation) Tells the plugin container to start polling the specified source for Events using the specified EventPoller.
void	unregisterEventPoller(String eventType) Tells the plugin container to stop polling for Events of the specified type (i.e.
void	unregisterEventPoller(String eventType, String sourceLocation) Tells the plugin container to stop polling the specified source for Events of the specified type (i.e.

Field Detail

MINIMUM_POLLING_INTERVAL

static final int MINIMUM_POLLING_INTERVAL

Minimum polling interval, in seconds. Used to be 1 minute, but since poll intervals are configurable it stands that 1 second will suffice.

See Also:

Constant Field Values

Method Detail

publishEvent

void publishEvent(@NotNull
                org.rhq.core.domain.event.Event event)

Publishes the specified Event. This means the Plugin Container will queue the Event to be sent to the Server.

Parameters:

event - the Event to be published

registerEventPoller

void registerEventPoller(@NotNull
                       EventPoller poller,
                       int pollingInterval)

Tells the plugin container to start polling for Events using the specified EventPoller.

Parameters:

poller - the poller that will be used

pollingInterval - the number of seconds to wait between polls. If the value less than MINIMUM_POLLING_INTERVAL is specified, MINIMUM_POLLING_INTERVAL will be used instead.

registerEventPoller

void registerEventPoller(@NotNull
                       EventPoller poller,
                       int pollingInterval,
                       @NotNull
                       String sourceLocation)

Tells the plugin container to start polling the specified source for Events using the specified EventPoller.

Parameters:

poller - the poller that will be used

pollingInterval - the number of seconds to wait between polls. If the value less than MINIMUM_POLLING_INTERVAL is specified, MINIMUM_POLLING_INTERVAL will be

sourceLocation - the location of the source to start polling

unregisterEventPoller

void unregisterEventPoller(@NotNull
                         String eventType)

Tells the plugin container to stop polling for Events of the specified type (i.e. EventDefinition name).

Parameters:

eventType - the type of Event to stop polling for

unregisterEventPoller

void unregisterEventPoller(@NotNull
                         String eventType,
                         @NotNull
                         String sourceLocation)

Tells the plugin container to stop polling the specified source for Events of the specified type (i.e. EventDefinition name).

Parameters:

eventType - the type of Event to stop polling for

sourceLocation - the location of the source to stop polling

getSigar

@Nullable
org.hyperic.sigar.SigarProxy getSigar()

Gets an instance of Sigar. Plugins that need to use Sigar, should use this method to get an instance, rather than instantiating Sigar themselves. Returns null if the native layer is unavailable or has been disabled.

Returns:

an instance of Sigar, or null if the native layer is unavailable or has been disabled