Quality-Rate Monitor

A performance monitor that computes an average (and actual) quality rate according to the reported number of total tries and successful tries. For example, you have one successful try from a total amount of 10 tries. Then the average quality rate would be 10%.

There are to ways for instrumenting the quality-rate monitor in the monitor-configuration.xml and in the source code:

Case 1

In the monitor-configuration.xml this monitor is specified in the following way:

<quality-rate-monitor name="Cache Hit Rate" configuration-group="ConfigMgr.CacheHitRate">
   <monitored-resource name="ConfigurationManager" type="MANAGER"/>
      <quality-rate-attribute-mapping>
      <total-tries-attribute>
         <observed-resource-attribute name="AccNrOfRequests"/>
      </total-tries-attribute>
      <total-hits-attribute>
         <observed-resource-attribute name="AccNrOfCacheRequests"/>
      </total-hits-attribute>
   </quality-rate-attribute-mapping>
</quality-rate-monitor>

The method returning the total tries from startup is:
```
public long getAccNrOfRequests();
```

The method returning the total successful tries from startup is:
```
public long getAccNrOfCacheRequests();
```

Case 2

In the monitor-configuration.xml this monitor is specified in the following way:

<quality-rate-monitor name="Cache Hit Rate" configuration-group="ConfigMgr.CacheHitRate">
   <monitored-resource name="ConfigurationManager" type="MANAGER"/>
      <quality-rate-attribute-mapping>
      <quality-rate-attribute>
         <observed-resource-attribute name="QualityRate"/>
      </quality-rate-attribute>
   </quality-rate-attribute-mapping>
</quality-rate-monitor>

The method returning the necessary data is:

public com.sap.jmx.monitoring.api.QualityRateValue getQualityRate();