org.apache.ambari.server.controller.internal

Class OverriddenMetricsHostProvider

java.lang.Object

org.apache.ambari.server.controller.internal.OverriddenMetricsHostProvider

All Implemented Interfaces:

MetricHostProvider

public class OverriddenMetricsHostProvider
extends Object
implements MetricHostProvider

I'm a special MetricHostProvider that can override default component host names.

Constructor Summary

Constructors

Constructor and Description
OverriddenMetricsHostProvider(Map<String,String> overriddenHosts, MetricHostProvider metricHostProvider, ConfigHelper configHelper)

Method Summary

Modifier and Type	Method and Description
String	getCollectorHostName(String clusterName, MetricsServiceProvider.MetricsService service) Get the metrics server host name for the given cluster name.
String	getCollectorPort(String clusterName, MetricsServiceProvider.MetricsService service) Get the metrics server port for the given cluster name.
Optional<String>	getExternalHostName(String clusterName, String componentName) If a component is installed to a host that is managed outside of Ambari (for example OneFS) then this method will return the external hostname.
String	getHostName(String clusterName, String componentName) Get the host name for the given cluster name and component name.
boolean	isCollectorComponentLive(String clusterName, MetricsServiceProvider.MetricsService service) Get the status of metrics server component for the given cluster name.
boolean	isCollectorHostExternal(String clusterName) Is the collector host external to the cluster?
boolean	isCollectorHostLive(String clusterName, MetricsServiceProvider.MetricsService service) Get the status of metrics server host for the given cluster name.

Methods inherited from class java.lang.Object

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

Constructor Detail

OverriddenMetricsHostProvider

public OverriddenMetricsHostProvider(Map<String,String> overriddenHosts,
                                     MetricHostProvider metricHostProvider,
                                     ConfigHelper configHelper)

Method Detail

getExternalHostName

public Optional<String> getExternalHostName(String clusterName,
                                            String componentName)

Description copied from interface: MetricHostProvider

If a component is installed to a host that is managed outside of Ambari (for example OneFS) then this method will return the external hostname.

Specified by:

getExternalHostName in interface MetricHostProvider

isCollectorHostExternal

public boolean isCollectorHostExternal(String clusterName)

Description copied from interface: MetricHostProvider

Is the collector host external to the cluster?

Specified by:

isCollectorHostExternal in interface MetricHostProvider

Parameters:

clusterName - the cluster name

Returns:

true if metrics server component is NOT in this cluster

getHostName

public String getHostName(String clusterName,
                          String componentName)
                   throws SystemException

Description copied from interface: MetricHostProvider

Get the host name for the given cluster name and component name.

Specified by:

getHostName in interface MetricHostProvider

Parameters:

clusterName - the cluster name

componentName - the component name

Returns:

the host name

Throws:

SystemException - if unable to get the JMX host name

getCollectorHostName

public String getCollectorHostName(String clusterName,
                                   MetricsServiceProvider.MetricsService service)
                            throws SystemException

Description copied from interface: MetricHostProvider

Get the metrics server host name for the given cluster name.

Specified by:

getCollectorHostName in interface MetricHostProvider

Parameters:

clusterName - the cluster name

Returns:

the metrics server

Throws:

SystemException - if unable to get the metrics server host name

getCollectorPort

public String getCollectorPort(String clusterName,
                               MetricsServiceProvider.MetricsService service)
                        throws SystemException

Description copied from interface: MetricHostProvider

Get the metrics server port for the given cluster name.

Specified by:

getCollectorPort in interface MetricHostProvider

Parameters:

clusterName - the cluster name

Returns:

the metrics server

Throws:

SystemException - if unable to get the metrics server port

isCollectorHostLive

public boolean isCollectorHostLive(String clusterName,
                                   MetricsServiceProvider.MetricsService service)
                            throws SystemException

Description copied from interface: MetricHostProvider

Get the status of metrics server host for the given cluster name.

Specified by:

isCollectorHostLive in interface MetricHostProvider

Parameters:

clusterName - the cluster name

Returns:

true if heartbeat with metrics server host wasn't lost

Throws:

SystemException - if unable to get the status of metrics server host

isCollectorComponentLive

public boolean isCollectorComponentLive(String clusterName,
                                        MetricsServiceProvider.MetricsService service)
                                 throws SystemException

Description copied from interface: MetricHostProvider

Get the status of metrics server component for the given cluster name.

Specified by:

isCollectorComponentLive in interface MetricHostProvider

Parameters:

clusterName - the cluster name

Returns:

true if metrics server component is started

Throws:

SystemException - if unable to get the status of metrics server component