Examples of java.util.concurrent.ExecutorService.invokeAny()

Class java.util.concurrent.ExecutorService

Examples of java.util.concurrent.ExecutorService.invokeAny()

java.util.concurrent.ExecutorService.invokeAny()
Executes the given tasks, returning the result of one that has completed successfully (i.e., without throwing an exception), if any do. Upon normal or exceptional return, tasks that have not completed are cancelled. The results of this method are undefined if the given collection is modified while this operation is in progress. @param tasks the collection of tasks @param < T> the type of the values returned from the tasks @return the result returned by one of the tasks @throws InterruptedException if interrupted while waiting @throws NullPointerException if tasks or any element tasksubject to execution is {@code null} @throws IllegalArgumentException if tasks is empty @throws ExecutionException if no task successfully completes @throws RejectedExecutionException if tasks cannot be scheduledfor execution

      ExecutionException, TimeoutException {
    ExecutorService service = delegate.get();
    if (service != null) {
      // since the tasks are either executed or cancelled, there is no
      // need to track them
      return service.invokeAny(tasks, timeout, unit);
    }
    throw new RejectedExecutionException(
        "Execution service is terminated. No more tasks can be executed.");
  }

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      throws InterruptedException, ExecutionException {
    ExecutorService service = delegate.get();
    if (service != null) {
      // since the tasks are either executed or cancelled, there is no
      // need to track them
      return service.invokeAny(tasks);
    }
    throw new RejectedExecutionException(
        "Execution service is terminated. No more tasks can be executed.");
  }

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         });
      }
      try
      {
         // we wait 5 seconds to get the first matching hardware address. After that, we give up and return null
         byte[] address = executor.invokeAny(tasks, 5, TimeUnit.SECONDS);
         return address;
      }
      catch (Exception e)
      {
         return null;

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         });
      }
      try
      {
         // we wait 5 seconds to get the first matching hardware address. After that, we give up and return null
         byte[] address = executor.invokeAny(tasks, 5, TimeUnit.SECONDS);
         return address;
      }
      catch (Exception e)
      {
         return null;

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                                         ExecutionException,
                                         TimeoutException {
        ExecutorService service = delegate.get();
        if ( service != null ) {
            // since the tasks are either executed or cancelled, there is no need to track them
            return service.invokeAny( tasks,
                                      timeout,
                                      unit );
        }
        throw new RejectedExecutionException( "Execution service is terminated. No more tasks can be executed." );
    }

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    public <T> T invokeAny(Collection<Callable<T>> tasks) throws InterruptedException,
                                                         ExecutionException {
        ExecutorService service = delegate.get();
        if ( service != null ) {
            // since the tasks are either executed or cancelled, there is no need to track them
            return service.invokeAny( tasks );
        }
        throw new RejectedExecutionException( "Execution service is terminated. No more tasks can be executed." );
    }


    /**

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            ExecutionException, TimeoutException {
        ExecutorService service = delegate.get();
        if (service != null) {
            // since the tasks are either executed or cancelled, there is no
            // need to track them
            return service.invokeAny(tasks, timeout, unit);
        }
        throw new RejectedExecutionException(
                "Execution service is terminated. No more tasks can be executed.");
    }

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            throws InterruptedException, ExecutionException {
        ExecutorService service = delegate.get();
        if (service != null) {
            // since the tasks are either executed or cancelled, there is no
            // need to track them
            return service.invokeAny(tasks);
        }
        throw new RejectedExecutionException(
                "Execution service is terminated. No more tasks can be executed.");
    }

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         });
      }
      try
      {
         // we wait 5 seconds to get the first matching hardware address. After that, we give up and return null
         byte[] address = executor.invokeAny(tasks, 5, TimeUnit.SECONDS);
         return address;
      }
      catch (Exception e)
      {
         return null;

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         });
      }
      try
      {
         // we wait 5 seconds to get the first matching hardware address. After that, we give up and return null
         byte[] address = executor.invokeAny(tasks, 5, TimeUnit.SECONDS);
         return address;
      }
      catch (Exception e)
      {
         return null;

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