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java-executor-demo

this is a project about java executor.

  • JavaThreadPool1:

    • create a fix thread pool by Executors and execute tasks of Thread and Runnable

    • Thread Pool:

      ExecutorService pool = Executors.newFixedThreadPool(int poolSize);

    • Task Type:

      • Thread
      • Runnable

    • Task Submit:

      pool.execute(Runnable task);

  • JavaThreadPool2:

    • create a fix thread pool by Executors, submit tasks of Callable, and get return Object Future

    • Thread Pool:

      ExecutorService pool = Executors.newFixedThreadPool(int poolSize);

    • Task Type:

      • Callable

    • Task Submit:

      pool.submit(Callable task);

  • JavaThreadPool3:

    • create a fix thread pool by ThreadPoolExecutor and execute tasks of Thread and Runnable

    • Thread Pool:

      ThreadPoolExecutor pool = new ThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue);

    • Task Type:

      • Thread
      • Runnable

    • Task Submit:

      pool.execute(Runnable task);

  • JavaThreadPool4:

    • create a fix thread pool by ThreadPoolExecutor, submit tasks of Callable, and get return Object Future

    • Thread Pool:

      ThreadPoolExecutor pool = new ThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue);

    • Task Type:

      • Callable

    • Task Submit:

      pool.submit(Callable task);

  • JavaThreadPool5:

    • create a fix thread pool by Executors, submit tasks of FutureTask, and use it to get Thread's state.

    • Thread Pool:

      ExecutorService pool = Executors.newFixedThreadPool(int poolSize);

    • Task Type:

      • FutureTask

    • Task Submit:

      pool.submit(Callable task);

  • JavaThreadPool6:

    • create a fix thread pool by ThreadPoolExecutorand, execute tasks of Thread and Runnable, and override method beforeExecute, afterExecute, terminated to monitor the thread pool.

    • Thread Pool:

      ThreadPoolExecutor pool = new ThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue);

    • Task Type:

      • Thread
      • Runnable

    • Task Submit:

      pool.execute(Runnable task);

    • Thread Pool Life cycle monitor:

      @Override
protected void beforeExecute(Thread t, Runnable r);
@Override
protected void afterExecute(Runnable r, Throwable t);
@Override
protected void terminated();

  • JavaThreadPool7:

    • Thread Pool:

      ThreadPoolExecutor pool = new ThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue);

    • Task Type:

      • Thread
      • Runnable

    • Task Submit:

      pool.execute(Runnable task);

    • RejectExecution:

      @Override
public void rejectedExecution(Runnable r, ThreadPoolExecutor executor);

      ​