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 package com.sun.grizzly.async;

 import com.sun.grizzly.SelectionKeyContextTask;

 import java.nio.channels.SelectionKey;

 /**

  * {@link AsyncQueueWriter} task, which will be executed by 

  * {@link Context}, when Context.execute({@link ContextTask}) 

  * is called.

  * 

  * @author Alexey Stashok

  */

 public class AsyncQueueWriterContextTask extends SelectionKeyContextTask {

     private static final TaskPool<AsyncQueueWriterContextTask> taskPool =

             new TaskPool<AsyncQueueWriterContextTask>() {

         @Override

         public AsyncQueueWriterContextTask newInstance() {

             return new AsyncQueueWriterContextTask();

         }

     };

     private AsyncQueueWriter asyncQueueWriter;

     public static AsyncQueueWriterContextTask poll() {

         return taskPool.poll();

     }

     public static void offer(AsyncQueueWriterContextTask contextTask) {

         taskPool.offer(contextTask);

     }

     @Override

     protected void afterCall() {

     }

     @Override

     protected void beforeCall() {

     }

     protected Object doCall() throws Exception {

         SelectionKey selectionKey = context.getSelectionKey();

         if (selectionKey == null) {

             throw new IllegalStateException("SelectionKey could not be null!");

         }

         asyncQueueWriter.onWrite(selectionKey);

         return null;

     }

     public AsyncQueueWriter getAsyncQueueWriter() {

         return asyncQueueWriter;

     }

     public void setAsyncQueueWriter(AsyncQueueWriter asyncWriter) {

         this.asyncQueueWriter = asyncWriter;

     }

     @Override

     public void recycle() {

         asyncQueueWriter = null;

         super.recycle();

     }

     @Override

     public void offer() {

         offer(this);

     }

 }