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

org.apache.tomcat.util.threads.TaskQueue
As task queue specifically designed to run with a thread pool executor. The task queue is optimised to properly utilize threads within a thread pool executor. If you use a normal queue, the executor will spawn threads when there are idle threads and you wont be able to force items unto the queue itself @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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                    }
                    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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        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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     *  that prevents this component from being used
     */
    @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();

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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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                    }
                    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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        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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    }




    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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