java.lang.Object
- io.grpc.xds.client.LoadStatsManager2

```
@ThreadSafe
@Internal
public final class LoadStatsManager2
extends java.lang.Object
```
Manages client side traffic stats. Drop stats are maintained in cluster (with edsServiceName) granularity and load stats (request counts) are maintained in locality granularity.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`class`	`LoadStatsManager2.ClusterDropStats`	Recorder for dropped requests.
`private static class`	`LoadStatsManager2.ClusterDropStatsSnapshot`
`class`	`LoadStatsManager2.ClusterLocalityStats`	Recorder for client loads.
`private static class`	`LoadStatsManager2.ClusterLocalityStatsSnapshot`

Field Summary

Fields
Modifier and Type	Field	Description
`private java.util.Map<java.lang.String,java.util.Map<java.lang.String,ReferenceCounted<LoadStatsManager2.ClusterDropStats>>>`	`allDropStats`
`private java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.util.Map<Locality,ReferenceCounted<LoadStatsManager2.ClusterLocalityStats>>>>`	`allLoadStats`
`private com.google.common.base.Supplier<com.google.common.base.Stopwatch>`	`stopwatchSupplier`

Constructor Summary

Constructors
Constructor Description

LoadStatsManager2(com.google.common.base.Supplier<com.google.common.base.Stopwatch> stopwatchSupplier)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) java.util.List<Stats.ClusterStats>`	`getAllClusterStatsReports()`	Gets the traffic stats (drops and loads) as a list of `Stats.ClusterStats` recorded for all clusters since the previous call of this method or `getClusterStatsReports(java.lang.String)` for each specific cluster.
`LoadStatsManager2.ClusterDropStats`	`getClusterDropStats(java.lang.String cluster, java.lang.String edsServiceName)`	Gets or creates the stats object for recording drops for the specified cluster with edsServiceName.
`LoadStatsManager2.ClusterLocalityStats`	`getClusterLocalityStats(java.lang.String cluster, java.lang.String edsServiceName, Locality locality)`	Gets or creates the stats object for recording loads for the specified locality (in the specified cluster with edsServiceName).
`java.util.List<Stats.ClusterStats>`	`getClusterStatsReports(java.lang.String cluster)`	Gets the traffic stats (drops and loads) as a list of `Stats.ClusterStats` recorded for the specified cluster since the previous call of this method or `getAllClusterStatsReports()`.
`private void`	`releaseClusterDropCounter(java.lang.String cluster, java.lang.String edsServiceName)`
`private void`	`releaseClusterLocalityLoadCounter(java.lang.String cluster, java.lang.String edsServiceName, Locality locality)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

allDropStats

private final java.util.Map<java.lang.String,java.util.Map<java.lang.String,ReferenceCounted<LoadStatsManager2.ClusterDropStats>>> allDropStats

allLoadStats

private final java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.util.Map<Locality,ReferenceCounted<LoadStatsManager2.ClusterLocalityStats>>>> allLoadStats

stopwatchSupplier

private final com.google.common.base.Supplier<com.google.common.base.Stopwatch> stopwatchSupplier

Constructor Detail

LoadStatsManager2

public LoadStatsManager2(com.google.common.base.Supplier<com.google.common.base.Stopwatch> stopwatchSupplier)

Method Detail

getClusterDropStats
```
public LoadStatsManager2.ClusterDropStats getClusterDropStats(java.lang.String cluster,
                                                              @Nullable
                                                              java.lang.String edsServiceName)
```
Gets or creates the stats object for recording drops for the specified cluster with edsServiceName. The returned object is reference counted and the caller should use LoadStatsManager2.ClusterDropStats.release() to release its hard reference when it is safe to discard future stats for the cluster.

releaseClusterDropCounter

private void releaseClusterDropCounter(java.lang.String cluster,
                                       @Nullable
                                       java.lang.String edsServiceName)

getClusterLocalityStats

public LoadStatsManager2.ClusterLocalityStats getClusterLocalityStats(java.lang.String cluster,
                                                                      @Nullable
                                                                      java.lang.String edsServiceName,
                                                                      Locality locality)

Gets or creates the stats object for recording loads for the specified locality (in the specified cluster with edsServiceName). The returned object is reference counted and the caller should use LoadStatsManager2.ClusterLocalityStats.release() to release its hard reference when it is safe to discard the future stats for the locality.

releaseClusterLocalityLoadCounter

private void releaseClusterLocalityLoadCounter(java.lang.String cluster,
                                               @Nullable
                                               java.lang.String edsServiceName,
                                               Locality locality)

getClusterStatsReports
```
public java.util.List<Stats.ClusterStats> getClusterStatsReports(java.lang.String cluster)
```
Gets the traffic stats (drops and loads) as a list of Stats.ClusterStats recorded for the specified cluster since the previous call of this method or getAllClusterStatsReports(). A Stats.ClusterStats includes stats for a specific cluster with edsServiceName.

getAllClusterStatsReports
```
java.util.List<Stats.ClusterStats> getAllClusterStatsReports()
```
Gets the traffic stats (drops and loads) as a list of Stats.ClusterStats recorded for all clusters since the previous call of this method or getClusterStatsReports(java.lang.String) for each specific cluster. A Stats.ClusterStats includes stats for a specific cluster with edsServiceName.

Class LoadStatsManager2