com.sun.enterprise.v3.services.impl.monitor.ThreadPoolMonitor Maven / Gradle / Ivy

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// Portions Copyright [2016] [Payara Foundation and/or its affiliates]

package com.sun.enterprise.v3.services.impl.monitor;

import com.sun.enterprise.v3.services.impl.monitor.stats.ConnectionQueueStatsProvider;
import com.sun.enterprise.v3.services.impl.monitor.stats.ThreadPoolStatsProvider;
import com.sun.enterprise.v3.services.impl.monitor.stats.ThreadPoolStatsProviderGlobal;
import org.glassfish.grizzly.threadpool.AbstractThreadPool;
import org.glassfish.grizzly.threadpool.ThreadPoolConfig;
import org.glassfish.grizzly.threadpool.ThreadPoolProbe;

/**
 *
 * @author oleksiys
 */
public class ThreadPoolMonitor implements ThreadPoolProbe {
    private final GrizzlyMonitoring grizzlyMonitoring;
    private final String monitoringId;

    public ThreadPoolMonitor(GrizzlyMonitoring grizzlyMonitoring,
            String monitoringId, ThreadPoolConfig config) {
        this.grizzlyMonitoring = grizzlyMonitoring;
        this.monitoringId = monitoringId;

        if (grizzlyMonitoring != null) {
            final ThreadPoolStatsProvider threadPoolStatsProvider = 
                    grizzlyMonitoring.getThreadPoolStatsProvider(monitoringId);
            if (threadPoolStatsProvider != null && !config.getPoolName().equals("")) {
                threadPoolStatsProvider.setStatsObject(config);
                
                // Subtract the number of busy threads from the global count before resetting
                final ThreadPoolStatsProviderGlobal globalThreadPoolStats = (ThreadPoolStatsProviderGlobal) 
                        grizzlyMonitoring.getThreadPoolStatsProvider("");
                if (globalThreadPoolStats != null) {
                    globalThreadPoolStats.subtractBusyThreads(threadPoolStatsProvider.getCurrentThreadsBusy().getCount());
                }
                    
                threadPoolStatsProvider.reset();
                
                // Update the global counts
                grizzlyMonitoring.updateGlobalThreadPoolStatsProvider();
            }

            final ConnectionQueueStatsProvider connectionQueueStatsProvider =
                    grizzlyMonitoring.getConnectionQueueStatsProvider(monitoringId);
            if (connectionQueueStatsProvider != null) {
                connectionQueueStatsProvider.setStatsObject(config);
                connectionQueueStatsProvider.reset();
            }
        }
    }

    @Override
    public void onThreadPoolStartEvent(AbstractThreadPool threadPool) {
    }

    @Override
    public void onThreadPoolStopEvent(AbstractThreadPool threadPool) {
    }

    @Override
    public void onThreadAllocateEvent(AbstractThreadPool threadPool, Thread thread) {
        grizzlyMonitoring.getThreadPoolProbeProvider().threadAllocatedEvent(monitoringId, threadPool, thread.getId());
    }

    @Override
    public void onThreadReleaseEvent(AbstractThreadPool threadPool, Thread thread) {
        grizzlyMonitoring.getThreadPoolProbeProvider().threadReleasedEvent(monitoringId, threadPool, thread.getId());
    }

    @Override
    public void onMaxNumberOfThreadsEvent(AbstractThreadPool threadPool, int maxNumberOfThreads) {
        grizzlyMonitoring.getThreadPoolProbeProvider().maxNumberOfThreadsReachedEvent(monitoringId, threadPool, 
                maxNumberOfThreads);
    }

    @Override
    public void onTaskDequeueEvent(AbstractThreadPool threadPool, Runnable task) {
        grizzlyMonitoring.getThreadPoolProbeProvider().threadDispatchedFromPoolEvent(monitoringId, 
                Thread.currentThread().getId());
        grizzlyMonitoring.getConnectionQueueProbeProvider().onTaskDequeuedEvent(monitoringId, task.getClass().getName());
    }

    @Override
    public void onTaskCancelEvent(AbstractThreadPool threadPool, Runnable task) {
        // when dequeued task is cancelled - we have to "return" the thread, that
        // we marked as dispatched from the pool
        grizzlyMonitoring.getThreadPoolProbeProvider().threadReturnedToPoolEvent(monitoringId, 
                Thread.currentThread().getId());
    }
    
    @Override
    public void onTaskCompleteEvent(AbstractThreadPool threadPool, Runnable task) {
        grizzlyMonitoring.getThreadPoolProbeProvider().threadReturnedToPoolEvent(
                monitoringId, Thread.currentThread().getId());
    }

    @Override
    public void onTaskQueueEvent(AbstractThreadPool threadPool, Runnable task) {
        grizzlyMonitoring.getConnectionQueueProbeProvider().onTaskQueuedEvent(monitoringId, task.getClass().getName());
    }

    @Override
    public void onTaskQueueOverflowEvent(AbstractThreadPool threadPool) {
        grizzlyMonitoring.getConnectionQueueProbeProvider().onTaskQueueOverflowEvent(monitoringId);
    }
}