Examples of org.apache.tomcat.util.threads.ThreadPoolExecutor

org.apache.tomcat.util.threads.ThreadPoolExecutor
Same as a java.util.concurrent.ThreadPoolExecutor but implements a much more efficient {@link #getSubmittedCount()} method, to be used to properly handle the work queue.If a RejectedExecutionHandler is not specified a default one will be configured and that one will always throw a RejectedExecutionException @author fhanik


    public void createExecutor() {
        internalExecutor = true;
        TaskQueue taskqueue = new TaskQueue();
        TaskThreadFactory tf = new TaskThreadFactory(getName() + "-exec-", daemon, getThreadPriority());
        executor = new ThreadPoolExecutor(getMinSpareThreads(), getMaxThreads(), 60, TimeUnit.SECONDS,taskqueue, tf);
        taskqueue.setParent( (ThreadPoolExecutor) executor);
    }

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    public void shutdownExecutor() {
        if ( executor!=null && internalExecutor ) {
            if ( executor instanceof ThreadPoolExecutor ) {
                //this is our internal one, so we need to shut it down
                ThreadPoolExecutor tpe = (ThreadPoolExecutor) executor;
                tpe.shutdownNow();
                long timeout = getExecutorTerminationTimeoutMillis();
                if (timeout > 0) {
                    try {
                        tpe.awaitTermination(timeout, TimeUnit.MILLISECONDS);
                    } catch (InterruptedException e) {
                        // Ignore
                    }
                    if (tpe.isTerminating()) {
                        getLog().warn(sm.getString("endpoint.warn.executorShutdown", getName()));
                    }
                }
                TaskQueue queue = (TaskQueue) tpe.getQueue();
                queue.setParent(null);
            }
            executor = null;
        }
    }

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    public void createExecutor() {
        internalExecutor = true;
        TaskQueue taskqueue = new TaskQueue();
        TaskThreadFactory tf = new TaskThreadFactory(getName() + "-exec-", daemon, getThreadPriority());
        executor = new ThreadPoolExecutor(getMinSpareThreads(), getMaxThreads(), 60, TimeUnit.SECONDS,taskqueue, tf);
        taskqueue.setParent( (ThreadPoolExecutor) executor);
    }

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    public void shutdownExecutor() {
        if ( executor!=null && internalExecutor ) {
            if ( executor instanceof ThreadPoolExecutor ) {
                //this is our internal one, so we need to shut it down
                ThreadPoolExecutor tpe = (ThreadPoolExecutor) executor;
                tpe.shutdownNow();
                TaskQueue queue = (TaskQueue) tpe.getQueue();
                queue.setParent(null);
            }
            executor = null;
        }
    }

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    @Override
    protected void startInternal() throws LifecycleException {


        taskqueue = new TaskQueue(maxQueueSize);
        TaskThreadFactory tf = new TaskThreadFactory(namePrefix,daemon,getThreadPriority());
        executor = new ThreadPoolExecutor(getMinSpareThreads(), getMaxThreads(), maxIdleTime, TimeUnit.MILLISECONDS,taskqueue, tf);
        executor.setThreadRenewalDelay(threadRenewalDelay);
        if (prestartminSpareThreads) {
            executor.prestartAllCoreThreads();
        }
        taskqueue.setParent(executor);

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                    AsyncIOThreadFactory.class.getClassLoader());


            // These are the same settings as the default
            // AsynchronousChannelGroup
            int initialSize = Runtime.getRuntime().availableProcessors();
            ExecutorService executorService = new ThreadPoolExecutor(
                    0,
                    Integer.MAX_VALUE,
                    Long.MAX_VALUE, TimeUnit.MILLISECONDS,
                    new SynchronousQueue<Runnable>(),
                    new AsyncIOThreadFactory());

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    public void createExecutor() {
        internalExecutor = true;
        TaskQueue taskqueue = new TaskQueue();
        TaskThreadFactory tf = new TaskThreadFactory(getName() + "-exec-", daemon, getThreadPriority());
        executor = new ThreadPoolExecutor(getMinSpareThreads(), getMaxThreads(), 60, TimeUnit.SECONDS,taskqueue, tf);
        taskqueue.setParent( (ThreadPoolExecutor) executor);
    }

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    public void shutdownExecutor() {
        if ( executor!=null && internalExecutor ) {
            if ( executor instanceof ThreadPoolExecutor ) {
                //this is our internal one, so we need to shut it down
                ThreadPoolExecutor tpe = (ThreadPoolExecutor) executor;
                tpe.shutdownNow();
                long timeout = getExecutorTerminationTimeoutMillis();
                if (timeout > 0) {
                    try {
                        tpe.awaitTermination(timeout, TimeUnit.MILLISECONDS);
                    } catch (InterruptedException e) {
                        // Ignore
                    }
                    if (tpe.isTerminating()) {
                        getLog().warn(sm.getString("endpoint.warn.executorShutdown", getName()));
                    }
                }
                TaskQueue queue = (TaskQueue) tpe.getQueue();
                queue.setParent(null);
            }
            executor = null;
        }
    }

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                if (handler != null) {
                    executor = handler.getExecutor();
                }


                if (executor instanceof ThreadPoolExecutor) {
                    ThreadPoolExecutor threadPoolExecutor =
                        (ThreadPoolExecutor) executor;
                    threadPoolExecutor.contextStopping();
                } else if (executor instanceof StandardThreadExecutor) {
                    StandardThreadExecutor stdThreadExecutor =
                        (StandardThreadExecutor) executor;
                    stdThreadExecutor.contextStopping();
                }

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    public void createExecutor() {
        internalExecutor = true;
        TaskQueue taskqueue = new TaskQueue();
        TaskThreadFactory tf = new TaskThreadFactory(getName() + "-exec-", daemon, getThreadPriority());
        executor = new ThreadPoolExecutor(getMinSpareThreads(), getMaxThreads(), 60, TimeUnit.SECONDS,taskqueue, tf);
        taskqueue.setParent( (ThreadPoolExecutor) executor);
    }

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