org.apache.knox.gateway.topology

Interface ClusterConfigurationMonitorService

All Superinterfaces:

Service

public interface ClusterConfigurationMonitorService
extends Service

Gateway service for managing cluster configuration monitors.

Method Summary

Modifier and Type	Method and Description
void	addListener(ClusterConfigurationMonitor.ConfigurationChangeListener listener) Register for configuration change notifications from any of the monitors managed by this service.
void	clearCache(String source, String clusterName) Clear the cluster configuration data cache for the specified source and cluster.
ClusterConfigurationMonitor	getMonitor(String type)

Methods inherited from interface org.apache.knox.gateway.services.Service

init, start, stop

Method Detail

getMonitor

ClusterConfigurationMonitor getMonitor(String type)

Parameters:

type - The type of monitor (e.g., Ambari)

Returns:

The monitor associated with the specified type, or null if there is no such monitor.

addListener

void addListener(ClusterConfigurationMonitor.ConfigurationChangeListener listener)

Register for configuration change notifications from any of the monitors managed by this service.

Parameters:

listener - The listener to register.

clearCache

void clearCache(String source,
                String clusterName)

Clear the cluster configuration data cache for the specified source and cluster.

Parameters:

source - The identifier of configuration source being monitored.

clusterName - The name of an associated cluster being monitored.