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package com.sun.enterprise.management.monitor.stats;
import java.util.Date;
import java.util.Map;
import javax.management.j2ee.statistics.Statistic;
import javax.management.j2ee.statistics.CountStatistic;
import com.sun.appserv.management.j2ee.statistics.CountStatisticImpl;
import com.sun.appserv.management.j2ee.statistics.StringStatistic;
import com.sun.appserv.management.j2ee.statistics.StringStatisticImpl;
import com.sun.appserv.management.monitor.statistics.LoadBalancerServerStats;
import com.sun.enterprise.admin.monitor.stats.lb.ClusterStats;
import com.sun.enterprise.admin.monitor.stats.lb.InstanceStats;
import com.sun.enterprise.admin.monitor.stats.lb.LoadBalancerStatsInterface;
import com.sun.enterprise.server.ApplicationServer;
import com.sun.enterprise.server.pluggable.LBFeatureFactory;
public final class LoadBalancerServerStatsImpl implements CustomStatsImpl {
/** Returns the statistics for a load-balanced server instance
* @return an array of {@link Statistic}
*/
public Statistic[] getStatistics() {
LoadBalancerStatsInterface lbstats = lbff.getLoadBalancerMonitoringStats(lbConfigName,lbName);
Statistic[] statArr1 = new Statistic[3];
StringStatistic stat11 = new StringStatisticImpl("Health", "Instance Health", "state of the server", 0, 0, "");
CountStatistic stat21 = new CountStatisticImpl("NumberOfActiveRequests", "Number Of Active Requests", "count", 0, 0, 0);
CountStatistic stat31 = new CountStatisticImpl("NumberOfTotalRequests", "Number Of Total Requests", "count", 0, 0, 0);
statArr1[0]=stat11;
statArr1[1]=stat21;
statArr1[2]=stat31;
if(lbstats == null)
return statArr1;
ClusterStats [] cstats = lbstats.getClusterStats();
for(ClusterStats cstat :cstats){
for(InstanceStats istat : cstat.getInstanceStats()){
if(!istat.getId().equals(instanceName))
continue;
Statistic[] statArr = new Statistic[3];
String health = istat.getHealth();
long activeReq = Long.parseLong(istat.getNumActiveRequests());
long totalReq = Long.parseLong(istat.getNumTotalRequests());
long sampleTime = new Date().getTime();
StringStatistic stat1 = new StringStatisticImpl("Health", "Instance Health", "milliseconds", startTime, sampleTime, health);
CountStatistic stat2 = new CountStatisticImpl("NumberOfActiveRequests", "Number Of Active Requests", "count", startTime, sampleTime, activeReq);
CountStatistic stat3 = new CountStatisticImpl("NumberOfTotalRequests", "Number Of Total Requests", "count", startTime, sampleTime, totalReq);
statArr[0] = stat1;
statArr[1] = stat2;
statArr[2] = stat3;
return statArr;
}
}
return null;
}
/** Returns the server's health status - Healthy, Unhealthy or Quiesced.
* @return an instance of {@link StringStatistic}
*/
public StringStatistic getHealth() {
Statistic[] statArr = getStatistics();
return (StringStatistic)statArr[0];
}
/** Returns the number of active requests on this instance
* @return an instance of {@link CountStatistic}
*/
public CountStatistic getNumberOfActiveRequests() {
Statistic[] statArr = getStatistics();
return (CountStatistic)statArr[1];
}
/** Returns the total number of requests for this instance.
* @return an instance of {@link CountStatistic}
*/
public CountStatistic getNumberOfTotalRequests() {
Statistic[] statArr = getStatistics();
return (CountStatistic)statArr[2];
}
public LoadBalancerServerStatsImpl(String lbName,String lbConfigName,String clusterName,String instanceName) {
this.lbName=lbName;
this.clusterName=clusterName;
this.instanceName=instanceName;
this.lbConfigName=lbConfigName;
this.lbff = ApplicationServer.getServerContext().getPluggableFeatureFactory().getLBFeatureFactory();
this.startTime=new Date().getTime();
}
public LoadBalancerServerStatsImpl() {
}
private String instanceName = null;
private String lbName = null;
private String lbConfigName = null;
private String clusterName = null;
private LBFeatureFactory lbff = null;
private long startTime = 0;
}
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