How to use

getMinSpareThreads

method

in

org.apache.catalina.core.StandardThreadExecutor

public void start() throws LifecycleException {
  lifecycle.fireLifecycleEvent(BEFORE_START_EVENT, null);
  TaskQueue taskqueue = new TaskQueue();
  TaskThreadFactory tf = new TaskThreadFactory(namePrefix);
  lifecycle.fireLifecycleEvent(START_EVENT, null);
  executor = new ThreadPoolExecutor(getMinSpareThreads(), getMaxThreads(), maxIdleTime, TimeUnit.MILLISECONDS,taskqueue, tf);
  taskqueue.setParent( (ThreadPoolExecutor) executor);
  lifecycle.fireLifecycleEvent(AFTER_START_EVENT, null);
}

/**
 * Start the component and implement the requirements
 * of {@link org.apache.catalina.util.LifecycleBase#startInternal()}.
 *
 * @exception LifecycleException if this component detects a fatal error
 *  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);
  if (prestartminSpareThreads) {
    executor.prestartAllCoreThreads();
  }
  taskqueue.setParent(executor);
  setState(LifecycleState.STARTING);
}

/**
 * Start the component and implement the requirements
 * of {@link org.apache.catalina.util.LifecycleBase#startInternal()}.
 *
 * @exception LifecycleException if this component detects a fatal error
 *  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);
  if (prestartminSpareThreads) {
    executor.prestartAllCoreThreads();
  }
  taskqueue.setParent(executor);
  setState(LifecycleState.STARTING);
}

/**
 * Start the component and implement the requirements
 * of {@link org.apache.catalina.util.LifecycleBase#startInternal()}.
 *
 * @exception LifecycleException if this component detects a fatal error
 *  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);
  if (prestartminSpareThreads) {
    executor.prestartAllCoreThreads();
  }
  taskqueue.setParent(executor);
  setState(LifecycleState.STARTING);
}

/**
 * Start the component and implement the requirements
 * of {@link org.apache.catalina.util.LifecycleBase#startInternal()}.
 *
 * @exception LifecycleException if this component detects a fatal error
 *  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);
  if (prestartminSpareThreads) {
    executor.prestartAllCoreThreads();
  }
  taskqueue.setParent(executor);
  setState(LifecycleState.STARTING);
}

/**
 * Start the component and implement the requirements
 * of {@link org.apache.catalina.util.LifecycleBase#startInternal()}.
 *
 * @exception LifecycleException if this component detects a fatal error
 *  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);
  if (prestartminSpareThreads) {
    executor.prestartAllCoreThreads();
  }
  taskqueue.setParent(executor);
  setState(LifecycleState.STARTING);
}

/**
 * Start the component and implement the requirements
 * of {@link org.apache.catalina.util.LifecycleBase#startInternal()}.
 *
 * @exception LifecycleException if this component detects a fatal error
 *  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);
  if (prestartminSpareThreads) {
    executor.prestartAllCoreThreads();
  }
  taskqueue.setParent(executor);
  setState(LifecycleState.STARTING);
}

/**
 * Start the component and implement the requirements
 * of {@link org.apache.catalina.util.LifecycleBase#startInternal()}.
 *
 * @exception LifecycleException if this component detects a fatal error
 *  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();
  }
  taskqueue.setParent(executor);
  setState(LifecycleState.STARTING);
}

/**
 * Start the component and implement the requirements
 * of {@link org.apache.catalina.util.LifecycleBase#startInternal()}.
 *
 * @exception LifecycleException if this component detects a fatal error
 *  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();
  }
  taskqueue.setParent(executor);
  setState(LifecycleState.STARTING);
}