@ManagedAttribute(id = "averageconnwaittime")
public CountStatistic getAverageConnWaitTime() {
// Time taken by all connection requests divided by total number of
// connections acquired in the sampling period.
long averageWaitTime = 0;
if (numConnAcquired.getCount() != 0) {
averageWaitTime = totalConnRequestWaitTime.getCount() / numConnAcquired.getCount();
} else {
averageWaitTime = 0;
}
averageConnWaitTime.setCount(averageWaitTime);
return averageConnWaitTime;
}
/** When an object is added to wait queue, increment the waitQueueLength. */
@ProbeListener(JCA_PROBE_LISTENER + "connectionRequestQueuedEvent")
public void connectionRequestQueuedEvent(
@ProbeParam("poolName") String poolName,
@ProbeParam("appName") String appName,
@ProbeParam("moduleName") String moduleName) {
PoolInfo poolInfo = new PoolInfo(poolName, appName, moduleName);
if (this.poolInfo.equals(poolInfo)) {
if (logger.isLoggable(Level.FINEST)) {
logger.finest("Wait Queue length modified event received - " + "poolName = " + poolName);
}
waitQueueLength.increment();
}
}
/**
* When a connection under test does not match the current request, increment
* numConnNotSuccessfullyMatched.
*/
@ProbeListener(JCA_PROBE_LISTENER + "connectionNotMatchedEvent")
public void connectionNotMatchedEvent(
@ProbeParam("poolName") String poolName,
@ProbeParam("appName") String appName,
@ProbeParam("moduleName") String moduleName) {
PoolInfo poolInfo = new PoolInfo(poolName, appName, moduleName);
if (this.poolInfo.equals(poolInfo)) {
if (logger.isLoggable(Level.FINEST)) {
logger.finest("Connection not matched event received - " + "poolName = " + poolName);
}
numConnNotSuccessfullyMatched.increment();
}
}
/**
* Whenever connection timed-out event occurs, increment numConnTimedOut
*
* @param pool JdbcConnectionPool that got a connTimedOutEvent
*/
@ProbeListener(JDBC_PROBE_LISTENER + "connectionTimedOutEvent")
public void connectionTimedOutEvent(
@ProbeParam("poolName") String poolName,
@ProbeParam("appName") String appName,
@ProbeParam("moduleName") String moduleName) {
// handle the conn timed out probe event
PoolInfo poolInfo = new PoolInfo(poolName, appName, moduleName);
if (this.poolInfo.equals(poolInfo)) {
if (logger.isLoggable(Level.FINEST)) {
logger.finest("Connection Timed-out event received - poolName = " + poolName);
}
// Increment counter
numConnTimedOut.increment();
}
}
/**
* Event that a connection request is served in timeTakenInMillis.
*
* @param poolName
* @param timeTakenInMillis
*/
@ProbeListener(JDBC_PROBE_LISTENER + "connectionRequestServedEvent")
public void connectionRequestServedEvent(
@ProbeParam("poolName") String poolName,
@ProbeParam("appName") String appName,
@ProbeParam("moduleName") String moduleName,
@ProbeParam("timeTakenInMillis") long timeTakenInMillis) {
PoolInfo poolInfo = new PoolInfo(poolName, appName, moduleName);
if (this.poolInfo.equals(poolInfo)) {
if (logger.isLoggable(Level.FINEST)) {
logger.finest("Connection request served event received - " + "poolName = " + poolName);
}
connRequestWaitTime.setCurrent(timeTakenInMillis);
totalConnRequestWaitTime.increment(timeTakenInMillis);
}
}
/**
* Whenever connection leak happens, increment numConnFailedValidation
*
* @param pool JdbcConnectionPool that got a failed validation event
*/
@ProbeListener(JDBC_PROBE_LISTENER + "connectionValidationFailedEvent")
public void connectionValidationFailedEvent(
@ProbeParam("poolName") String poolName,
@ProbeParam("appName") String appName,
@ProbeParam("moduleName") String moduleName,
@ProbeParam("increment") int increment) {
PoolInfo poolInfo = new PoolInfo(poolName, appName, moduleName);
if (this.poolInfo.equals(poolInfo)) {
if (logger.isLoggable(Level.FINEST)) {
logger.finest("Connection Validation Failed event received - " + "poolName = " + poolName);
}
// TODO V3 : add support in CounterImpl for addAndGet(increment)
numConnFailedValidation.increment(increment);
}
}
/**
* Whenever connection leak happens, increment numPotentialConnLeak
*
* @param pool JdbcConnectionPool that got a connLeakEvent
*/
@ProbeListener(JDBC_PROBE_LISTENER + "potentialConnLeakEvent")
public void potentialConnLeakEvent(
@ProbeParam("poolName") String poolName,
@ProbeParam("appName") String appName,
@ProbeParam("moduleName") String moduleName) {
// handle the conn leak probe event
PoolInfo poolInfo = new PoolInfo(poolName, appName, moduleName);
if (this.poolInfo.equals(poolInfo)) {
if (logger.isLoggable(Level.FINEST)) {
logger.finest("Connection Leak event received - poolName = " + poolName);
}
// TODO V3: Checking if this is a valid event
// Increment counter
numPotentialConnLeak.increment();
}
}
/**
* Reset pool statistics. When annotated with @Reset, this method is invoked whenever monitoring
* is turned to HIGH from OFF, thereby setting the statistics to appropriate values.
*/
@Reset
public void reset() {
if (logger.isLoggable(Level.FINEST)) {
logger.finest("Reset event received - poolInfo = " + poolInfo);
}
PoolStatus status = ConnectorRuntime.getRuntime().getPoolManager().getPoolStatus(poolInfo);
numConnUsed.setCurrent(status.getNumConnUsed());
numConnFree.setCurrent(status.getNumConnFree());
numConnCreated.reset();
numConnDestroyed.reset();
numConnFailedValidation.reset();
numConnTimedOut.reset();
numConnAcquired.reset();
numConnReleased.reset();
connRequestWaitTime.reset();
numConnSuccessfullyMatched.reset();
numConnNotSuccessfullyMatched.reset();
numPotentialConnLeak.reset();
averageConnWaitTime.reset();
totalConnRequestWaitTime.reset();
waitQueueLength.reset();
}
@ProbeListener("fooblog:samples:ProbeServlet:myProbe")
public void probe(String s) {
servletRequestCount.increment();
System.out.println("PROBE LISTENER HERE. Called with this arg: " + s);
}
