Examples with COMPUTE_TASK_EXECUTE org.apache.ignite.internal.client.thin.ClientOperation.COMPUTE_TASK_EXECUTE used on opensource projects

Example 1 with COMPUTE_TASK_EXECUTE

use of org.apache.ignite.internal.client.thin.ClientOperation.COMPUTE_TASK_EXECUTE in project ignite by apache.

the class ClientComputeImpl method executeAsync0.

/**
 * @param taskName Task name.
 * @param arg Argument.
 * @param clusterGrp Cluster group.
 * @param flags Flags.
 * @param timeout Timeout.
 */
private <T, R> IgniteClientFuture<R> executeAsync0(String taskName, @Nullable T arg, ClientClusterGroupImpl clusterGrp, byte flags, long timeout) throws ClientException {
    Collection<UUID> nodeIds = clusterGrp.nodeIds();
    if (F.isEmpty(taskName))
        throw new ClientException("Task name can't be null or empty.");
    if (nodeIds != null && nodeIds.isEmpty())
        throw new ClientException("Cluster group is empty.");
    Consumer<PayloadOutputChannel> payloadWriter = ch -> writeExecuteTaskRequest(ch, taskName, arg, nodeIds, flags, timeout);
    Function<PayloadInputChannel, ClientComputeTask<R>> payloadReader = ch -> {
        Long taskId = ch.in().readLong();
        ClientComputeTask<R> task = new ClientComputeTask<>(utils, ch.clientChannel(), taskId);
        ch.clientChannel().addNotificationListener(COMPUTE_TASK_FINISHED, taskId, task);
        return task;
    };
    IgniteClientFuture<ClientComputeTask<R>> initFut = ch.serviceAsync(COMPUTE_TASK_EXECUTE, payloadWriter, payloadReader);
    CompletableFuture<R> resFut = new CompletableFuture<>();
    AtomicReference<Object> cancellationToken = new AtomicReference<>();
    initFut.handle((task, err) -> handleExecuteInitFuture(resFut, cancellationToken, task, err));
    return new IgniteClientFutureImpl<>(resFut, mayInterruptIfRunning -> {
        // 2. initFut has completed - cancel compute future.
        if (!cancellationToken.compareAndSet(null, mayInterruptIfRunning)) {
            GridFutureAdapter<?> fut = (GridFutureAdapter<?>) cancellationToken.get();
            if (!cancelGridFuture(fut, mayInterruptIfRunning))
                return false;
        }
        resFut.cancel(mayInterruptIfRunning);
        return true;
    });
}