Examples with Cancellable org.apache.twill.common.Cancellable used on opensource projects

Example 26 with Cancellable

use of org.apache.twill.common.Cancellable in project cdap by caskdata.

the class AbstractHttpHandlerDelegator method wrapContentConsumer.

/**
 * Returns a new instance of {@link BodyConsumer} that wraps around the given {@link HttpContentConsumer}
 * and {@link DelayedHttpServiceResponder}.
 *
 * IMPORTANT: This method will also capture the context associated with the current thread, hence after
 * this method is called, no other methods on this class should be called from the current thread.
 *
 * This method is called from handler class generated by {@link HttpHandlerGenerator}.
 */
@SuppressWarnings("unused")
protected final BodyConsumer wrapContentConsumer(HttpContentConsumer consumer, DelayedHttpServiceResponder responder, TransactionControl defaultTxControl) {
    Preconditions.checkState(!responder.hasBufferedResponse(), "HttpContentConsumer may not be used after a response has already been sent.");
    // Close the provided responder since a new one will be created for the BodyConsumerAdapter to use.
    responder.close();
    ServiceTaskExecutor taskExecutor = context.getServiceTaskExecutor();
    Cancellable contextReleaser = context.capture();
    return new BodyConsumerAdapter(new DelayedHttpServiceResponder(responder, (contentProducer, txServiceContext) -> new BodyProducerAdapter(contentProducer, txServiceContext, contextReleaser, defaultTxControl)), consumer, taskExecutor, contextReleaser, defaultTxControl);
}

Example 27 with Cancellable

use of org.apache.twill.common.Cancellable in project cdap by caskdata.

the class AppFabricServer method startHttpService.

private Cancellable startHttpService(final NettyHttpService httpService) throws Exception {
    httpService.start();
    String announceAddress = cConf.get(Constants.Service.MASTER_SERVICES_ANNOUNCE_ADDRESS, httpService.getBindAddress().getHostName());
    int announcePort = cConf.getInt(Constants.AppFabric.SERVER_ANNOUNCE_PORT, httpService.getBindAddress().getPort());
    final InetSocketAddress socketAddress = new InetSocketAddress(announceAddress, announcePort);
    LOG.info("AppFabric HTTP Service announced at {}", socketAddress);
    // Tag the discoverable's payload to mark it as supporting ssl.
    byte[] sslPayload = sslEnabled ? Constants.Security.SSL_URI_SCHEME.getBytes() : Bytes.EMPTY_BYTE_ARRAY;
    // TODO accept a list of services, and start them here
    // When it is running, register it with service discovery
    final List<Cancellable> cancellables = new ArrayList<>();
    for (final String serviceName : servicesNames) {
        cancellables.add(discoveryService.register(ResolvingDiscoverable.of(new Discoverable(serviceName, socketAddress, sslPayload))));
    }
    return new Cancellable() {

        @Override
        public void cancel() {
            LOG.debug("Stopping AppFabric HTTP service.");
            for (Cancellable cancellable : cancellables) {
                if (cancellable != null) {
                    cancellable.cancel();
                }
            }
            try {
                httpService.stop();
            } catch (Exception e) {
                LOG.warn("Exception raised when stopping AppFabric HTTP service", e);
            }
            LOG.info("AppFabric HTTP service stopped.");
        }
    };
}