package textbender.g.util.concurrent; // Copyright 2006, Michael Allan.  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Textbender Software"), to deal in the Textbender Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicence, and/or sell copies of the Textbender Software, and to permit persons to whom the Textbender Software is furnished to do so, subject to the following conditions: The preceding copyright notice and this permission notice shall be included in all copies or substantial portions of the Textbender Software. THE TEXTBENDER SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE TEXTBENDER SOFTWARE OR THE USE OR OTHER DEALINGS IN THE TEXTBENDER SOFTWARE.

import java.util.concurrent.*;
import textbender.g.util.logging.LoggerX;


/** A ScheduledThreadPoolExecutor that logs uncaught exceptions.
  */
public class ScheduledThreadPoolExecutorL extends ScheduledThreadPoolExecutor
{



    public ScheduledThreadPoolExecutorL( int corePoolSize, ThreadFactory threadFactory )
    {
        super( corePoolSize, threadFactory );
        assert false: "fix the BUG first";
    }



   // - T h r e a d - P o o l - E x e c u t o r ------------------------------------------


    /** Logs the throwable.
      */
    protected void afterExecute( Runnable r, Throwable t )
    {
        super.afterExecute( r, t );
        if( r instanceof FutureTask )
        {
            assert t == null: "FutureTask wrapper hides exceptions from afterExecute()"; // work around:
            try{ ((FutureTask)r).get(); } // expose hidden exception, if any // BUG, will block (or maybe throws exception that is silently suppressed - something is killing the periodic scheduling), see Votorola's ScheduledThreadPoolExecutorX 
            catch( ExecutionException xE ) { t = xE.getCause(); } // cannot expose the wrapped runnable though, no such method
            catch( InterruptedException xI ) {}
        }
        if( t != null ) LoggerX.i(r.getClass()).log( LoggerX.WARNING, /*message*/"", t );
    }



}