Examples of java.util.concurrent.Executor

java.util.concurrent.Executor
An object that executes submitted {@link Runnable} tasks. Thisinterface provides a way of decoupling task submission from the mechanics of how each task will be run, including details of thread use, scheduling, etc. An {@code Executor} is normally usedinstead of explicitly creating threads. For example, rather than invoking {@code new Thread(new(RunnableTask())).start()} for eachof a set of tasks, you might use:
```
 Executor executor = anExecutor; executor.execute(new RunnableTask1()); executor.execute(new RunnableTask2()); ... 
```
However, the {@code Executor} interface does not strictlyrequire that execution be asynchronous. In the simplest case, an executor can run the submitted task immediately in the caller's thread:
```
  {@code}class DirectExecutor implements Executor  public void execute(Runnable r) { r.run(); } }}
```
More typically, tasks are executed in some thread other than the caller's thread. The executor below spawns a new thread for each task.
```
  {@code}class ThreadPerTaskExecutor implements Executor  public void execute(Runnable r) { new Thread(r).start(); } }}
```
Many {@code Executor} implementations impose some sort oflimitation on how and when tasks are scheduled. The executor below serializes the submission of tasks to a second executor, illustrating a composite executor.
```
  {@code}class SerialExecutor implements Executor  final Queue tasks = new ArrayDeque(); final Executor executor; Runnable active; SerialExecutor(Executor executor) { this.executor = executor; } public synchronized void execute(final Runnable r) { tasks.offer(new Runnable() { public void run() { try { r.run(); } finally { scheduleNext(); } } }); if (active == null) { scheduleNext(); } } protected synchronized void scheduleNext() { if ((active = tasks.poll()) != null) { executor.execute(active); } } }}
```
The {@code Executor} implementations provided in this packageimplement {@link ExecutorService}, which is a more extensive interface. The {@link ThreadPoolExecutor} class provides anextensible thread pool implementation. The {@link Executors} classprovides convenient factory methods for these Executors.
Memory consistency effects: Actions in a thread prior to submitting a {@code Runnable} object to an {@code Executor}happen-before its execution begins, perhaps in another thread. @since 1.5 @author Doug Lea

            return (executor != null) ? JBossExecutors.protectedExecutorService(executor) : null;
        }


        @Override
        public ExecutorService getOOBExecutor() {
            Executor executor = this.oobExecutor.getOptionalValue();
            return (executor != null) ? JBossExecutors.protectedExecutorService(executor) : null;
        }

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                }
            }


        };
        
        Executor executor = getExecutor(endpoint);
        if (exchange.get(Executor.class) == executor) {
            // already executing on the appropriate executor
            invocation.run();
        } else {
            exchange.put(Executor.class, executor);
            FutureTask<Object> o = new FutureTask<Object>(invocation, null) {
                @Override
                protected void done() {
                    super.done();
                    synchronized (this) {
                        this.notifyAll();
                    }
                }
            };
            synchronized (o) {
                executor.execute(o);
                if (!o.isDone()) {
                    try {
                        o.wait();
                    } catch (InterruptedException e) {
                        //IGNORE

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     * @throws StartException if the connector cannot be started
     */
    public synchronized void start(StartContext context) throws StartException {
        final SocketBinding binding = this.binding.getValue();
        final InetSocketAddress address = binding.getSocketAddress();
        final Executor executor = this.executor.getOptionalValue();
        try {
            // Create connector
            final Connector connector = new Connector(protocol);
            connector.setPort(address.getPort());
            connector.setScheme(scheme);

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     * {@inheritDoc}
     * @see org.infinispan.executors.ExecutorFactory#getExecutor(java.util.Properties)
     */
    @Override
    public ExecutorService getExecutor(Properties properties) {
        Executor executor = (Executor) properties.get(EXECUTOR);
        if (executor == null) {
            throw MESSAGES.invalidExecutorProperty(EXECUTOR, properties);
        }
        return new ManagedExecutorService(executor);
    }

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            return this.diagnosticsSocketBinding.getOptionalValue();
        }


        @Override
        public ExecutorService getDefaultExecutor() {
            Executor executor = this.defaultExecutor.getOptionalValue();
            return (executor != null) ? JBossExecutors.protectedExecutorService(executor) : null;
        }

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            return (executor != null) ? JBossExecutors.protectedExecutorService(executor) : null;
        }


        @Override
        public ExecutorService getOOBExecutor() {
            Executor executor = this.oobExecutor.getOptionalValue();
            return (executor != null) ? JBossExecutors.protectedExecutorService(executor) : null;
        }

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                    transportBuilder.machineId(machine);
                }
            }
            transportBuilder.clusterName(this.name);


            Executor executor = transport.getExecutor();
            if (executor != null) {
                // See ISPN-1675
                // globalBuilder.asyncTransportExecutor().factory(new ManagedExecutorFactory(executor));
                ExecutorProvider.initTransportExecutor(builder, executor);
            }
        }


        Executor listenerExecutor = this.dependencies.getListenerExecutor();
        if (listenerExecutor != null) {
            // See ISPN-1675
            // globalBuilder.asyncListenerExecutor().factory(new ManagedExecutorFactory(listenerExecutor));
            ExecutorProvider.initListenerExecutor(builder, listenerExecutor);
        }

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   public ConnectionEntry createConnectionEntry(final Acceptor acceptorUsed, final Connection connection)
   {
      final Configuration config = server.getConfiguration();
      
      Executor connectionExecutor = server.getExecutorFactory().getExecutor();


      final CoreRemotingConnection rc = new RemotingConnectionImpl(connection,
                                                                   interceptors,
                                                                   config.isAsyncConnectionExecutionEnabled() ? connectionExecutor
                                                                                                             : null,

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                            channel.getSourceChannel().suspendReads();
                            requestStateUpdater.set(this, 0);
                            break;
                        }
                    }
                    Executor executor = exchange.getDispatchExecutor();
                    if (executor == null) {
                        executor = exchange.getConnection().getWorker();
                    }
                    executor.execute(this);
                }
            }
        } else if (!exchange.isPersistent()) {
            IoUtils.safeClose(connection);
        } else if (exchange.isUpgrade()) {

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        }
    }


    @Override
    public void start(final Runnable run) {
        Executor executor = asyncExecutor();
        final CompositeThreadSetupAction setup = servletRequestContext.getDeployment().getThreadSetupAction();
        executor.execute(new Runnable() {
            @Override
            public void run() {
                ThreadSetupAction.Handle handle = setup.setup(null);
                try {
                    run.run();

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