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package com.sun.enterprise.v3.services.impl.monitor.stats;
import com.sun.grizzly.http.KeepAliveStats;
import org.glassfish.external.probe.provider.annotations.ProbeListener;
import org.glassfish.external.probe.provider.annotations.ProbeParam;
import org.glassfish.external.statistics.CountStatistic;
import org.glassfish.external.statistics.annotations.Reset;
import org.glassfish.external.statistics.impl.CountStatisticImpl;
import org.glassfish.gmbal.AMXMetadata;
import org.glassfish.gmbal.Description;
import org.glassfish.gmbal.ManagedAttribute;
import org.glassfish.gmbal.ManagedObject;
/**
* Keep-alive statistics
*
* @author Alexey Stashok
*/
@AMXMetadata(type = "keep-alive-mon", group = "monitoring")
@ManagedObject
@Description("Keep-Alive Statistics")
public class KeepAliveStatsProvider implements StatsProvider {
private final String name;
protected final CountStatisticImpl maxRequestsCount = new CountStatisticImpl("MaxRequests", "count", "Maximum number of requests allowed on a single keep-alive connection");
protected final CountStatisticImpl timeoutInSeconds = new CountStatisticImpl("SecondsTimeouts", "seconds", "Keep-alive timeout value in seconds");
protected final CountStatisticImpl keepAliveConnectionsCount = new CountStatisticImpl("CountConnections", "count", "Number of connections in keep-alive mode");
protected final CountStatisticImpl flushesCount = new CountStatisticImpl("CountFlushes", "count", "Number of keep-alive connections that were closed");
protected final CountStatisticImpl hitsCount = new CountStatisticImpl("CountHits", "count", "Number of requests received by connections in keep-alive mode");
protected final CountStatisticImpl refusalsCount = new CountStatisticImpl("CountRefusals", "count", "Number of keep-alive connections that were rejected");
protected final CountStatisticImpl timeoutsCount = new CountStatisticImpl("CountTimeouts", "count", "Number of keep-alive connections that timed out");
protected volatile KeepAliveStats keepAliveStats;
public KeepAliveStatsProvider(String name) {
this.name = name;
}
@Override
public Object getStatsObject() {
return keepAliveStats;
}
@Override
public void setStatsObject(Object object) {
if (object instanceof KeepAliveStats) {
keepAliveStats = (KeepAliveStats) object;
} else {
keepAliveStats = null;
}
}
@ManagedAttribute(id = "maxrequests")
@Description("Maximum number of requests allowed on a single keep-alive connection")
public CountStatistic getMaxKeepAliveRequestsCount() {
return maxRequestsCount;
}
@ManagedAttribute(id = "secondstimeouts")
@Description("Keep-alive timeout value in seconds")
public CountStatistic getKeepAliveTimeoutInSeconds() {
return timeoutInSeconds;
}
@ManagedAttribute(id = "countconnections")
@Description("Number of connections in keep-alive mode")
public CountStatistic getKeepAliveConnectionsCount() {
return keepAliveConnectionsCount;
}
@ManagedAttribute(id = "countflushes")
@Description("Number of keep-alive connections that were closed")
public CountStatistic getFlushesCount() {
return flushesCount;
}
@ManagedAttribute(id = "counthits")
@Description("Number of requests received by connections in keep-alive mode")
public CountStatistic getHitsCount() {
return hitsCount;
}
@ManagedAttribute(id = "countrefusals")
@Description("Number of keep-alive connections that were rejected")
public CountStatistic getRefusalsCount() {
return refusalsCount;
}
@ManagedAttribute(id = "counttimeouts")
@Description("Number of keep-alive connections that timed out")
public CountStatistic getTimeoutsCount() {
return timeoutsCount;
}
@ProbeListener("glassfish:kernel:connections-keep-alive:setMaxCountRequestsEvent")
public void setMaxCountRequestsEvent(
@ProbeParam("listenerName") String listenerName,
@ProbeParam("maxRequests") int max) {
if (name.equals(listenerName)) {
maxRequestsCount.setCount(max);
}
}
@ProbeListener("glassfish:kernel:connections-keep-alive:setTimeoutInSecondsEvent")
public void setTimeoutInSecondsEvent(
@ProbeParam("listenerName") String listenerName,
@ProbeParam("timeoutInSeconds") int timeoutInSeconds) {
if (name.equals(listenerName)) {
this.timeoutInSeconds.setCount(timeoutInSeconds);
}
}
@ProbeListener("glassfish:kernel:connections-keep-alive:incrementCountConnectionsEvent")
public void incrementCountConnectionsEvent(@ProbeParam("listenerName") String listenerName) {
if (name.equals(listenerName)) {
keepAliveConnectionsCount.increment();
}
}
@ProbeListener("glassfish:kernel:connections-keep-alive:decrementCountConnectionsEvent")
public void decrementCountConnectionsEvent(@ProbeParam("listenerName") String listenerName) {
if (name.equals(listenerName)) {
keepAliveConnectionsCount.decrement();
}
}
@ProbeListener("glassfish:kernel:connections-keep-alive:incrementCountFlushesEvent")
public void incrementCountFlushesEvent(@ProbeParam("listenerName") String listenerName) {
if (name.equals(listenerName)) {
flushesCount.increment();
}
}
@ProbeListener("glassfish:kernel:connections-keep-alive:incrementCountHitsEvent")
public void incrementCountHitsEvent(@ProbeParam("listenerName") String listenerName) {
if (name.equals(listenerName)) {
hitsCount.increment();
}
}
@ProbeListener("glassfish:kernel:connections-keep-alive:incrementCountRefusalsEvent")
public void incrementCountRefusalsEvent(@ProbeParam("listenerName") String listenerName) {
if (name.equals(listenerName)) {
refusalsCount.increment();
}
}
@ProbeListener("glassfish:kernel:connections-keep-alive:incrementCountTimeoutsEvent")
public void incrementCountTimeoutsEvent(@ProbeParam("listenerName") String listenerName) {
if (name.equals(listenerName)) {
timeoutsCount.increment();
}
}
@Reset
public void reset() {
final KeepAliveStats stats = keepAliveStats;
if (stats != null) {
maxRequestsCount.setCount(stats.getMaxKeepAliveRequests());
timeoutInSeconds.setCount(stats.getKeepAliveTimeoutInSeconds());
}
keepAliveConnectionsCount.setCount(0);
flushesCount.setCount(0);
hitsCount.setCount(0);
refusalsCount.setCount(0);
timeoutsCount.setCount(0);
}
}