Example usage for io.netty.channel.socket DatagramChannel config

Introduction

In this page you can find the example usage for io.netty.channel.socket DatagramChannel config.

Prototype

@Override
    DatagramChannelConfig config();

Source Link

Usage

From source file:io.vertx.core.dns.impl.fix.DnsNameResolver.java

License:Apache License

/**
 * Creates a new DNS-based name resolver that communicates with the specified list of DNS servers.
 *
 * @param eventLoop the {@link EventLoop} which will perform the communication with the DNS servers
 * @param channelFactory the {@link ChannelFactory} that will create a {@link DatagramChannel}
 * @param nameServerAddresses the addresses of the DNS server. For each DNS query, a new stream is created from
 *                            this to determine which DNS server should be contacted for the next retry in case
 *                            of failure.
 * @param resolveCache the DNS resolved entries cache
 * @param queryTimeoutMillis timeout of each DNS query in millis
 * @param resolvedAddressTypes list of the protocol families
 * @param recursionDesired if recursion desired flag must be set
 * @param maxQueriesPerResolve the maximum allowed number of DNS queries for a given name resolution
 * @param traceEnabled if trace is enabled
 * @param maxPayloadSize the capacity of the datagram packet buffer
 * @param optResourceEnabled if automatic inclusion of a optional records is enabled
 * @param hostsFileEntriesResolver the {@link HostsFileEntriesResolver} used to check for local aliases
 * @param searchDomains TODO/*from w  w  w . j av  a 2s .  c o m*/
 * @param ndots TODO
 */
public DnsNameResolver(EventLoop eventLoop, ChannelFactory<? extends DatagramChannel> channelFactory,
        DnsServerAddresses nameServerAddresses, DnsCache resolveCache, long queryTimeoutMillis,
        InternetProtocolFamily[] resolvedAddressTypes, boolean recursionDesired, int maxQueriesPerResolve,
        boolean traceEnabled, int maxPayloadSize, boolean optResourceEnabled,
        HostsFileEntriesResolver hostsFileEntriesResolver, List<String> searchDomains, int ndots) {

    super(eventLoop);
    checkNotNull(channelFactory, "channelFactory");
    this.nameServerAddresses = checkNotNull(nameServerAddresses, "nameServerAddresses");
    this.queryTimeoutMillis = checkPositive(queryTimeoutMillis, "queryTimeoutMillis");
    this.resolvedAddressTypes = checkNonEmpty(resolvedAddressTypes, "resolvedAddressTypes");
    this.recursionDesired = recursionDesired;
    this.maxQueriesPerResolve = checkPositive(maxQueriesPerResolve, "maxQueriesPerResolve");
    this.traceEnabled = traceEnabled;
    this.maxPayloadSize = checkPositive(maxPayloadSize, "maxPayloadSize");
    this.optResourceEnabled = optResourceEnabled;
    this.hostsFileEntriesResolver = checkNotNull(hostsFileEntriesResolver, "hostsFileEntriesResolver");
    this.resolveCache = resolveCache;
    this.searchDomains = checkNotNull(searchDomains, "searchDomains");
    this.ndots = checkPositive(ndots, "ndots");

    Bootstrap b = new Bootstrap();
    b.group(executor());
    b.channelFactory(channelFactory);
    b.option(ChannelOption.DATAGRAM_CHANNEL_ACTIVE_ON_REGISTRATION, true);
    final DnsResponseHandler responseHandler = new DnsResponseHandler(executor().<Channel>newPromise());
    b.handler(new ChannelInitializer<DatagramChannel>() {
        @Override
        protected void initChannel(DatagramChannel ch) throws Exception {
            ch.pipeline().addLast(DECODER, ENCODER, responseHandler);
        }
    });

    channelFuture = responseHandler.channelActivePromise;
    ch = (DatagramChannel) b.register().channel();
    ch.config().setRecvByteBufAllocator(new FixedRecvByteBufAllocator(maxPayloadSize));

    ch.closeFuture().addListener(new ChannelFutureListener() {
        @Override
        public void operationComplete(ChannelFuture future) throws Exception {
            resolveCache.clear();
        }
    });
}

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From source file:io.vertx.core.net.impl.transport.EpollTransport.java

License:Open Source License

@Override
public void configure(DatagramChannel channel, DatagramSocketOptions options) {
    channel.config().setOption(EpollChannelOption.SO_REUSEPORT, options.isReusePort());
    super.configure(channel, options);
}

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From source file:io.vertx.core.net.impl.transport.KQueueTransport.java

License:Open Source License

@Override
public void configure(DatagramChannel channel, DatagramSocketOptions options) {
    channel.config().setOption(KQueueChannelOption.SO_REUSEPORT, options.isReusePort());
    super.configure(channel, options);
}

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From source file:io.vertx.core.net.impl.transport.Transport.java

License:Open Source License

public void configure(DatagramChannel channel, DatagramSocketOptions options) {
    channel.config().setAllocator(PartialPooledByteBufAllocator.INSTANCE);
    if (options.getSendBufferSize() != -1) {
        channel.config().setSendBufferSize(options.getSendBufferSize());
    }//from   w w  w  .  j a  va2 s .  c  om
    if (options.getReceiveBufferSize() != -1) {
        channel.config().setReceiveBufferSize(options.getReceiveBufferSize());
        channel.config().setRecvByteBufAllocator(new FixedRecvByteBufAllocator(options.getReceiveBufferSize()));
    }
    channel.config().setOption(ChannelOption.SO_REUSEADDR, options.isReuseAddress());
    if (options.getTrafficClass() != -1) {
        channel.config().setTrafficClass(options.getTrafficClass());
    }
    channel.config().setBroadcast(options.isBroadcast());
    if (this == Transport.JDK) {
        channel.config().setLoopbackModeDisabled(options.isLoopbackModeDisabled());
        if (options.getMulticastTimeToLive() != -1) {
            channel.config().setTimeToLive(options.getMulticastTimeToLive());
        }
        if (options.getMulticastNetworkInterface() != null) {
            try {
                channel.config().setNetworkInterface(
                        NetworkInterface.getByName(options.getMulticastNetworkInterface()));
            } catch (SocketException e) {
                throw new IllegalArgumentException(
                        "Could not find network interface with name " + options.getMulticastNetworkInterface());
            }
        }
    }
}

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