Example usage for com.google.common.util.concurrent ListenableScheduledFuture addListener

Introduction

In this page you can find the example usage for com.google.common.util.concurrent ListenableScheduledFuture addListener.

Prototype

void addListener(Runnable listener, Executor executor);

Source Link

Document

Registers a listener to be Executor#execute(Runnable) run on the given executor.

Usage

From source file:org.onosproject.mlb.MastershipLoadBalancer.java

private void scheduleBalance() {
    if (isLeader.get() && nextTask.get() == null) {

        ListenableScheduledFuture task = executorService.schedule(mastershipAdminService::balanceRoles, 30,
                TimeUnit.SECONDS);
        task.addListener(() -> {
            log.info("Completed balance roles");
            nextTask.set(null);/*ww  w .j av a2 s  .c o  m*/
        }, MoreExecutors.directExecutor());
        if (!nextTask.compareAndSet(null, task)) {
            task.cancel(false);
        }
    }
}

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From source file:com.google.idea.common.experiments.WebExperimentSyncer.java

private void scheduleNextRefresh(boolean refreshWasSuccessful) {
    int delayInMinutes = refreshWasSuccessful ? SUCESSFUL_DOWNLOAD_DELAY_MINUTES
            : DOWNLOAD_FAILURE_DELAY_MINUTES;
    ListenableScheduledFuture<String> refreshResults = executor.schedule(new WebExperimentsDownloader(),
            delayInMinutes, TimeUnit.MINUTES);
    refreshResults.addListener(new WebExperimentsResultProcessor(refreshResults),
            MoreExecutors.sameThreadExecutor());
}

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From source file:com.google.idea.blaze.base.experiments.WebExperimentSyncer.java

private void scheduleNextRefresh(boolean refreshWasSuccessful) {
    int delayInMinutes = refreshWasSuccessful ? SUCESSFUL_DOWNLOAD_DELAY_MINUTES
            : DOWNLOAD_FAILURE_DELAY_MINUTES;
    ListenableScheduledFuture<String> refreshResults = executor.schedule(new WebExperimentsDownloader(),
            delayInMinutes, TimeUnit.MINUTES);
    refreshResults.addListener(new WebExperimentsResultProcessor(refreshResults, true),
            MoreExecutors.sameThreadExecutor());
}

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From source file:com.google.devtools.build.lib.remote.ByteStreamUploader.java

private void startAsyncUploadWithRetry(Chunker chunker, Retrier.Backoff backoffTimes,
        SettableFuture<Void> overallUploadResult) {

    AsyncUpload.Listener listener = new AsyncUpload.Listener() {
        @Override//  ww w . ja va 2  s  . co m
        public void success() {
            overallUploadResult.set(null);
        }

        @Override
        public void failure(Status status) {
            StatusException cause = status.asException();
            long nextDelayMillis = backoffTimes.nextDelayMillis();
            if (nextDelayMillis < 0 || !retrier.isRetriable(status)) {
                // Out of retries or status not retriable.
                RetryException error = new RetryException(cause, backoffTimes.getRetryAttempts());
                overallUploadResult.setException(error);
            } else {
                retryAsyncUpload(nextDelayMillis, chunker, backoffTimes, overallUploadResult);
            }
        }

        private void retryAsyncUpload(long nextDelayMillis, Chunker chunker, Retrier.Backoff backoffTimes,
                SettableFuture<Void> overallUploadResult) {
            try {
                ListenableScheduledFuture<?> schedulingResult = retryService.schedule(
                        Context.current().wrap(
                                () -> startAsyncUploadWithRetry(chunker, backoffTimes, overallUploadResult)),
                        nextDelayMillis, MILLISECONDS);
                // In case the scheduled execution errors, we need to notify the overallUploadResult.
                schedulingResult.addListener(() -> {
                    try {
                        schedulingResult.get();
                    } catch (Exception e) {
                        overallUploadResult
                                .setException(new RetryException(e, backoffTimes.getRetryAttempts()));
                    }
                }, MoreExecutors.directExecutor());
            } catch (RejectedExecutionException e) {
                // May be thrown by .schedule(...) if i.e. the executor is shutdown.
                overallUploadResult.setException(new RetryException(e, backoffTimes.getRetryAttempts()));
            }
        }
    };

    try {
        chunker.reset();
    } catch (IOException e) {
        overallUploadResult.setException(e);
        return;
    }

    AsyncUpload newUpload = new AsyncUpload(channel, callCredentials, callTimeoutSecs, instanceName, chunker,
            listener);
    overallUploadResult.addListener(() -> {
        if (overallUploadResult.isCancelled()) {
            newUpload.cancel();
        }
    }, MoreExecutors.directExecutor());
    newUpload.start();
}

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