Examples of edu.emory.mathcs.backport.java.util.concurrent.FutureTask

Package edu.emory.mathcs.backport.java.util.concurrent

Examples of edu.emory.mathcs.backport.java.util.concurrent.FutureTask

edu.emory.mathcs.backport.java.util.concurrent.FutureTask
A cancellable asynchronous computation. This class provides a base implementation of {@link Future}, with methods to start and cancel a computation, query to see if the computation is complete, and retrieve the result of the computation. The result can only be retrieved when the computation has completed; the get method will block if the computation has not yet completed. Once the computation has completed, the computation cannot be restarted or cancelled.
A FutureTask can be used to wrap a {@link Callable} or{@link java.lang.Runnable} object. Because FutureTaskimplements Runnable, a FutureTask can be submitted to an {@link Executor} for execution.
In addition to serving as a standalone class, this class provides protected functionality that may be useful when creating customized task classes. @since 1.5 @author Doug Lea

                new ClusterDoneTask(ensembleEprPath,
                                    identityAuthorization,
                                    clusterName,
                                    print);


        final FutureTask task = new FutureTask(dTask);
        this.executor.submit(task);


        try {
            final Integer retCode = (Integer) task.get();
            if (retCode.intValue() != BaseClient.SUCCESS_EXIT_CODE) {
                throw new ExitNow(retCode.intValue());
            }
        } catch (InterruptedException e) {
            throw new ExecutionProblem(e.getMessage(), e);

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                                       clusterName,
                                       reportDirectory,
                                       pollMs,
                                       print);


        final FutureTask task = new FutureTask(mTask);
        this.executor.submit(task);


        try {
            final Integer retCode = (Integer) task.get();
            if (retCode.intValue() != BaseClient.SUCCESS_EXIT_CODE) {
                throw new ExitNow(retCode.intValue());
            }
        } catch (InterruptedException e) {
            throw new ExecutionProblem(e.getMessage(), e);

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                                       sshKnownHostsFile,
                                       knownHostTasks,
                                       pollMs,
                                       print);


        final FutureTask task = new FutureTask(mTask);
        this.executor.submit(task);


        try {
            final Integer retCode = (Integer) task.get();
            if (retCode.intValue() != BaseClient.SUCCESS_EXIT_CODE) {
                throw new ExitNow(retCode.intValue());
            }
        } catch (InterruptedException e) {
            throw new ExecutionProblem(e.getMessage(), e);

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        final String eprPath = eprFile.getAbsolutePath();
        print.debugln("EPR will be written to:");
        print.debugln("  - '" + eprPath + "'");
        print.debugln("");


        final FutureTask task =
                  this.getWorkspaceTask(workspaceFactoryURL,
                                        eprPath,
                                        metadata,
                                        metadata_fileName,
                                        deploymentRequest,
                                        deploymentRequest_fileName,
                                        sshfile,
                                        newdir,
                                        newDirName,
                                        pollMs,
                                        identityAuthorization,
                                        disableAllStateChecks,
                                        "Running",
                                        null,
                                        false,
                                        false,
                                        print,
                                        null,
                                        null);


        this.executor.submit(task);


        try {
            final Integer retCode = (Integer) task.get();
            if (retCode.intValue() == BaseClient.SUCCESS_EXIT_CODE) {
                print.infoln("\nRunning: '" + newDirName + "'");
            } else {
                print.errln("\nProblem running '" + newDirName + "'.");
                throw new ExitNow(retCode.intValue());

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                                            forceGroupPrint,
                                            mdUserDataPath,
                                            ipIdDir,
                                            print);


        return new FutureTask(runTask);
    }

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        if (executorService == null) 
        {
            throw new IllegalArgumentException("executorService may not be null");
        }


        FutureTask task = new FutureTask(this.cumulusTask);
        long timeoutMinutes = this.args.getTimeoutMinutes();


        executorService.submit(task);


        try 
        {
            if (timeoutMinutes < 1)
            {
                task.get();
            } 
            else 
            {
                task.get(timeoutMinutes, TimeUnit.MINUTES);
            }
        } 
        catch (InterruptedException e) 
        {
            throw new ExecutionProblem(e);

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                overflowNotificationTime -= OVERFLOW_RENOTIFICATION_DELAY;
                
            } else {
                
                try {
                    final FutureTask result = new FutureTask(new Callable() {
                        public Object call() throws Exception {
                            return queuedActivateNextLogFile();
                        }});
                    executor.execute(result);
                    Location location = (Location) result.get();
                    appendLogFileId = location.getLogFileId();
                    appendLogFileOffset = location.getLogFileOffset();
    
                } catch (InterruptedException e) {
                    throw (IOException) new IOException("Interrupted.").initCause(e);

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            }
        }


        // Run this in the queued executor thread.
        try {
            final FutureTask result = new FutureTask(new Callable() {
                public Object call() throws Exception {
                    return queuedGetNextRecordLocation((Location) lastLocation);
                }});
            executor.execute(result);
            return (Location) result.get();
        } catch (InterruptedException e) {
            throw (IOException) new IOException("Interrupted.").initCause(e);
        }
        catch (ExecutionException e) {
            throw handleExecutionException(e);

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     */
    public Packet read(final RecordLocation l) throws IOException, InvalidRecordLocationException {
        final Location location = (Location) l;
        // Run this in the queued executor thread.
        try {
            final FutureTask result = new FutureTask(new Callable() {
                public Object call() throws Exception {
                    return file.readPacket(location);
                }});
            executor.execute(result);
            return (Packet) result.get();
        } catch (InterruptedException e) {
            throw (IOException) new IOException("Interrupted.").initCause(e);
        }
        catch (ExecutionException e) {
            throw handleExecutionException(e);

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