org.apache.ambari.server.controller.metrics.timeline.cache

Class TimelineAppMetricCacheKey

java.lang.Object

org.apache.ambari.server.controller.metrics.timeline.cache.TimelineAppMetricCacheKey

public class TimelineAppMetricCacheKey
extends Object

Cache contents represent metrics for an App / Cluster. This is designed to work on the premise that a client makes same requests over and over, so this caching strategy allows us to send a http request for multiple metrics in the same query and ensure parallelization on the metrics backend side as well.

Constructor Summary

Constructors

Constructor and Description
TimelineAppMetricCacheKey(Set<String> metricNames, String appId, String hostNames, TemporalInfo temporalInfo)
TimelineAppMetricCacheKey(Set<String> metricNames, String appId, TemporalInfo temporalInfo)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
String	getAppId()
String	getHostNames()
Set<String>	getMetricNames()
String	getSpec() Actual http request Uri, this does not contribute to the key behavior, it is used solely for interoperability between @AMSPropertyProvider.MetricsRequest and the Cache.
TemporalInfo	getTemporalInfo() Temporal info is used to calculate the next query window, it does not contribute to the key behavior.
int	hashCode()
void	setSpec(String spec) Set spec string.
void	setTemporalInfo(TemporalInfo temporalInfo) Set temporalInfo to new query window each time.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

TimelineAppMetricCacheKey

public TimelineAppMetricCacheKey(Set<String> metricNames,
                                 String appId,
                                 String hostNames,
                                 TemporalInfo temporalInfo)

TimelineAppMetricCacheKey

public TimelineAppMetricCacheKey(Set<String> metricNames,
                                 String appId,
                                 TemporalInfo temporalInfo)

Method Detail

getMetricNames

public Set<String> getMetricNames()

getTemporalInfo

public TemporalInfo getTemporalInfo()

Temporal info is used to calculate the next query window, it does not contribute to the key behavior.

Returns:

@TemporalInfo

setTemporalInfo

public void setTemporalInfo(TemporalInfo temporalInfo)

Set temporalInfo to new query window each time.

Parameters:

temporalInfo - @TemporalInfo

getAppId

public String getAppId()

getHostNames

public String getHostNames()

getSpec

public String getSpec()

Actual http request Uri, this does not contribute to the key behavior, it is used solely for interoperability between @AMSPropertyProvider.MetricsRequest and the Cache.

Returns:

Request Uri

setSpec

public void setSpec(String spec)

Set spec string.

Parameters:

spec - Request Uri

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object