Examples with Callable java.util.concurrent.Callable used on opensource projects

Example 71 with Callable

use of java.util.concurrent.Callable in project graylog2-server by Graylog2.

the class TcpTransport method getFinalChannelHandlers.

@Override
protected LinkedHashMap<String, Callable<? extends ChannelHandler>> getFinalChannelHandlers(MessageInput input) {
    final LinkedHashMap<String, Callable<? extends ChannelHandler>> finalChannelHandlers = Maps.newLinkedHashMap();
    finalChannelHandlers.put("framer", new Callable<ChannelHandler>() {

        @Override
        public ChannelHandler call() throws Exception {
            return new DelimiterBasedFrameDecoder(maxFrameLength, delimiter);
        }
    });
    finalChannelHandlers.putAll(super.getFinalChannelHandlers(input));
    return finalChannelHandlers;
}

Example 72 with Callable

use of java.util.concurrent.Callable in project graylog2-server by Graylog2.

the class NettyTransport method launch.

@Override
public void launch(final MessageInput input) throws MisfireException {
    final LinkedHashMap<String, Callable<? extends ChannelHandler>> handlerList = getBaseChannelHandlers(input);
    final LinkedHashMap<String, Callable<? extends ChannelHandler>> finalHandlers = getFinalChannelHandlers(input);
    handlerList.putAll(finalHandlers);
    try {
        bootstrap = getBootstrap();
        bootstrap.setPipelineFactory(getPipelineFactory(handlerList));
        // sigh, bindable bootstraps do not share a common interface
        int receiveBufferSize;
        if (bootstrap instanceof ConnectionlessBootstrap) {
            acceptChannel = ((ConnectionlessBootstrap) bootstrap).bind(socketAddress);
            final DefaultDatagramChannelConfig channelConfig = (DefaultDatagramChannelConfig) acceptChannel.getConfig();
            receiveBufferSize = channelConfig.getReceiveBufferSize();
        } else if (bootstrap instanceof ServerBootstrap) {
            acceptChannel = ((ServerBootstrap) bootstrap).bind(socketAddress);
            final ServerSocketChannelConfig channelConfig = (ServerSocketChannelConfig) acceptChannel.getConfig();
            receiveBufferSize = channelConfig.getReceiveBufferSize();
        } else {
            log.error("Unknown Netty bootstrap class returned: {}. Cannot safely bind.", bootstrap);
            throw new IllegalStateException("Unknown netty bootstrap class returned: " + bootstrap + ". Cannot safely bind.");
        }
        if (receiveBufferSize != getRecvBufferSize()) {
            log.warn("receiveBufferSize (SO_RCVBUF) for input {} should be {} but is {}.", input, getRecvBufferSize(), receiveBufferSize);
        }
    } catch (Exception e) {
        throw new MisfireException(e);
    }
}

Example 73 with Callable

use of java.util.concurrent.Callable in project graylog2-server by Graylog2.

the class NettyTransport method getBaseChannelHandlers.

/**
     * Subclasses can override this to add additional ChannelHandlers to the pipeline to support additional features.
     * <p/>
     * Some common use cases are to add SSL/TLS, connection counters or throttling traffic shapers.
     *
     * @param input
     * @return the list of initial channelhandlers to add to the {@link org.jboss.netty.channel.ChannelPipelineFactory}
     */
protected LinkedHashMap<String, Callable<? extends ChannelHandler>> getBaseChannelHandlers(final MessageInput input) {
    LinkedHashMap<String, Callable<? extends ChannelHandler>> handlerList = Maps.newLinkedHashMap();
    handlerList.put("exception-logger", new Callable<ChannelHandler>() {

        @Override
        public ChannelHandler call() throws Exception {
            return new SimpleChannelUpstreamHandler() {

                @SuppressWarnings("ThrowableResultOfMethodCallIgnored")
                @Override
                public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
                    if ("Connection reset by peer".equals(e.getCause().getMessage())) {
                        log.trace("{} in Input [{}/{}] (channel {})", e.getCause().getMessage(), input.getName(), input.getId(), e.getChannel());
                    } else {
                        log.error("Error in Input [{}/{}] (channel {})", input.getName(), input.getId(), e.getChannel(), e.getCause());
                    }
                    super.exceptionCaught(ctx, e);
                }
            };
        }
    });
    handlerList.put("packet-meta-dumper", new Callable<ChannelHandler>() {

        @Override
        public ChannelHandler call() throws Exception {
            return new PacketInformationDumper(input);
        }
    });
    handlerList.put("traffic-counter", Callables.returning(throughputCounter));
    return handlerList;
}

Example 74 with Callable

use of java.util.concurrent.Callable in project graylog2-server by Graylog2.

the class AbstractTcpTransportTest method getBaseChannelHandlersFailsIfTempDirDoesNotExist.

@Test
public void getBaseChannelHandlersFailsIfTempDirDoesNotExist() throws IOException {
    final File tmpDir = temporaryFolder.newFolder();
    assumeTrue(tmpDir.delete());
    System.setProperty("java.io.tmpdir", tmpDir.getAbsolutePath());
    final Configuration configuration = new Configuration(ImmutableMap.of("bind_address", "localhost", "port", 12345, "tls_enable", true));
    final AbstractTcpTransport transport = new AbstractTcpTransport(configuration, throughputCounter, localRegistry, bossPool, workerPool, connectionCounter) {

        @Override
        protected Bootstrap getBootstrap() {
            return super.getBootstrap();
        }

        @Override
        protected LinkedHashMap<String, Callable<? extends ChannelHandler>> getBaseChannelHandlers(MessageInput input) {
            return super.getBaseChannelHandlers(input);
        }
    };
    expectedException.expect(IllegalStateException.class);
    expectedException.expectMessage("Couldn't write to temporary directory: " + tmpDir.getAbsolutePath());
    transport.getBaseChannelHandlers(input);
}

Example 75 with Callable

use of java.util.concurrent.Callable in project graylog2-server by Graylog2.

the class AbstractTcpTransportTest method getBaseChannelHandlersFailsIfTempDirIsNotWritable.

@Test
public void getBaseChannelHandlersFailsIfTempDirIsNotWritable() throws IOException {
    final File tmpDir = temporaryFolder.newFolder();
    assumeTrue(tmpDir.setWritable(false));
    assumeFalse(tmpDir.canWrite());
    System.setProperty("java.io.tmpdir", tmpDir.getAbsolutePath());
    final Configuration configuration = new Configuration(ImmutableMap.of("bind_address", "localhost", "port", 12345, "tls_enable", true));
    final AbstractTcpTransport transport = new AbstractTcpTransport(configuration, throughputCounter, localRegistry, bossPool, workerPool, connectionCounter) {

        @Override
        protected Bootstrap getBootstrap() {
            return super.getBootstrap();
        }

        @Override
        protected LinkedHashMap<String, Callable<? extends ChannelHandler>> getBaseChannelHandlers(MessageInput input) {
            return super.getBaseChannelHandlers(input);
        }
    };
    expectedException.expect(IllegalStateException.class);
    expectedException.expectMessage("Couldn't write to temporary directory: " + tmpDir.getAbsolutePath());
    transport.getBaseChannelHandlers(input);
}