Examples with Component com.datatorrent.api.Component used on opensource projects

Example 1 with Component

use of com.datatorrent.api.Component in project apex-core by apache.

the class StreamingContainer method setup.

@SuppressWarnings("unchecked")
public void setup(StreamingContainerContext ctx) {
    containerContext = ctx;
    /* add a request factory local to this container */
    this.requestFactory = new RequestFactory();
    ctx.attributes.put(ContainerContext.REQUEST_FACTORY, requestFactory);
    heartbeatIntervalMillis = ctx.getValue(Context.DAGContext.HEARTBEAT_INTERVAL_MILLIS);
    firstWindowMillis = ctx.startWindowMillis;
    windowWidthMillis = ctx.getValue(Context.DAGContext.STREAMING_WINDOW_SIZE_MILLIS);
    checkpointWindowCount = ctx.getValue(Context.DAGContext.CHECKPOINT_WINDOW_COUNT);
    fastPublisherSubscriber = ctx.getValue(LogicalPlan.FAST_PUBLISHER_SUBSCRIBER);
    Map<Class<?>, Class<? extends StringCodec<?>>> codecs = ctx.getValue(Context.DAGContext.STRING_CODECS);
    StringCodecs.loadConverters(codecs);
    try {
        if (ctx.deployBufferServer) {
            eventloop.start();
            int bufferServerRAM = ctx.getValue(ContainerContext.BUFFER_SERVER_MB);
            logger.debug("buffer server memory {}", bufferServerRAM);
            int blockCount;
            int blocksize;
            if (bufferServerRAM < ContainerContext.BUFFER_SERVER_MB.defaultValue) {
                blockCount = 8;
                blocksize = bufferServerRAM / blockCount;
                if (blocksize < 1) {
                    blocksize = 1;
                }
            } else {
                blocksize = 64;
                blockCount = bufferServerRAM / blocksize;
            }
            // start buffer server, if it was not set externally
            bufferServer = new Server(eventloop, 0, blocksize * 1024 * 1024, blockCount);
            bufferServer.setAuthToken(ctx.getValue(StreamingContainerContext.BUFFER_SERVER_TOKEN));
            if (ctx.getValue(Context.DAGContext.BUFFER_SPOOLING)) {
                bufferServer.setSpoolStorage(new DiskStorage());
            }
            bufferServerAddress = NetUtils.getConnectAddress(bufferServer.run());
            logger.debug("Buffer server started: {}", bufferServerAddress);
        }
    } catch (IOException ex) {
        logger.warn("deploy request failed due to {}", ex);
        throw new IllegalStateException("Failed to deploy buffer server", ex);
    }
    for (Class<?> clazz : ContainerEvent.CONTAINER_EVENTS_LISTENERS) {
        try {
            Object newInstance = clazz.newInstance();
            singletons.put(clazz.getName(), newInstance);
            if (newInstance instanceof Component) {
                components.add((Component<ContainerContext>) newInstance);
            }
            eventBus.subscribe(newInstance);
        } catch (InstantiationException ex) {
            logger.warn("Container Event Listener Instantiation", ex);
        } catch (IllegalAccessException ex) {
            logger.warn("Container Event Listener Instantiation", ex);
        }
    }
    operateListeners(ctx, true);
}