Java SocketAddress类代码示例

import java.net.SocketAddress; //导入依赖的package包/类
public static void main(String[] args) throws IOException
{
    ByteBuffer data = ByteBuffer.wrap("TESTING DATA".getBytes());
    DatagramChannel dgChannel = DatagramChannel.open();

    for(int i = 0; i < targets.length; i++){
        data.rewind();
        SocketAddress sa = new InetSocketAddress(targets[i], port);
        System.out.println("-------------\nDG_Sending data:" +
                           "\n    remaining:" + data.remaining() +
                           "\n     position:" + data.position() +
                           "\n        limit:" + data.limit() +
                           "\n     capacity:" + data.capacity() +
                           " bytes on DG channel to " + sa);
        try {
            int n = dgChannel.send(data, sa);
            System.out.println("DG_Sent " + n + " bytes");
        } catch (IOException e) {
            //This regression test is to check vm crash only, so ioe is OK.
            e.printStackTrace();
        }
    }
    dgChannel.close();
}
 

import java.net.SocketAddress; //导入依赖的package包/类
@Override
protected Object decode(
        Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {

    if (msg instanceof Position) {
        Position position = (Position) msg;
        if (latitudeFactor != 0) {
            position.setLatitude(Math.abs(position.getLatitude()) * latitudeFactor);
        }
        if (longitudeFactor != 0) {
            position.setLongitude(Math.abs(position.getLongitude()) * longitudeFactor);
        }
    }

    return msg;
}
 

import java.net.SocketAddress; //导入依赖的package包/类
@Override
protected DatagramChannel open(SocketAddress localAddress) throws Exception {
    final DatagramChannel c = DatagramChannel.open();
    boolean success = false;
    try {
        new NioDatagramSessionConfig(c).setAll(getSessionConfig());
        c.configureBlocking(false);
        c.socket().bind(localAddress);
        c.register(selector, SelectionKey.OP_READ);
        success = true;
    } finally {
        if (!success) {
            close(c);
        }
    }

    return c;
}
 

import java.net.SocketAddress; //导入依赖的package包/类
@Override
protected Object decode(
        Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {

    HttpRequest request = (HttpRequest) msg;
    QueryStringDecoder decoder = new QueryStringDecoder(request.getUri());

    DeviceSession deviceSession = getDeviceSession(
            channel, remoteAddress, decoder.getParameters().get("UserName").get(0));
    if (deviceSession == null) {
        return null;
    }

    Parser parser = new Parser(PATTERN, decoder.getParameters().get("LOC").get(0));
    if (!parser.matches()) {
        return null;
    }

    Position position = new Position();
    position.setProtocol(getProtocolName());
    position.setDeviceId(deviceSession.getDeviceId());

    position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));

    position.setValid(true);
    position.setLatitude(parser.nextDouble(0));
    position.setLongitude(parser.nextDouble(0));
    position.setAltitude(parser.nextDouble(0));
    position.setSpeed(parser.nextDouble(0));
    position.setCourse(parser.nextDouble(0));

    if (channel != null) {
        HttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
        channel.write(response).addListener(ChannelFutureListener.CLOSE);
    }

    return position;
}
 

import java.net.SocketAddress; //导入依赖的package包/类
/**
 * Binds the channel's socket to a local address.
 */
@Override
public SctpChannel bind(SocketAddress local) throws IOException {
    synchronized (receiveLock) {
        synchronized (sendLock) {
            synchronized (stateLock) {
                ensureOpenAndUnconnected();
                if (isBound())
                    SctpNet.throwAlreadyBoundException();
                InetSocketAddress isa = (local == null) ?
                    new InetSocketAddress(0) : Net.checkAddress(local);
                SecurityManager sm = System.getSecurityManager();
                if (sm != null) {
                    sm.checkListen(isa.getPort());
                }
                Net.bind(fd, isa.getAddress(), isa.getPort());
                InetSocketAddress boundIsa = Net.localAddress(fd);
                port = boundIsa.getPort();
                localAddresses.add(isa);
                if (isa.getAddress().isAnyLocalAddress())
                    wildcard = true;
            }
        }
    }
    return this;
}
 

import java.net.SocketAddress; //导入依赖的package包/类
/**
 * send a reply-acknowledgement (6,2,3), sends it doing a busy write, the
 * ACK is so small that it should always go to the buffer
 * 
 * @param key
 * @param channel
 */
protected void sendAck(SelectionKey key, WritableByteChannel channel, byte[] command, SocketAddress udpaddr) {
	try {

		ByteBuffer buf = ByteBuffer.wrap(command);
		int total = 0;
		if (channel instanceof DatagramChannel) {
			DatagramChannel dchannel = (DatagramChannel) channel;
			// were using a shared channel, document says its thread safe
			// TODO check optimization, one channel per thread?
			while (total < command.length) {
				total += dchannel.send(buf, udpaddr);
			}
		} else {
			while (total < command.length) {
				total += channel.write(buf);
			}
		}
		if (log.isTraceEnabled()) {
			log.trace("ACK sent to "
					+ ((channel instanceof SocketChannel) ? ((SocketChannel) channel).socket().getInetAddress()
							: ((DatagramChannel) channel).socket().getInetAddress()));
		}
	} catch (java.io.IOException x) {
		log.warn("Unable to send ACK back through channel, channel disconnected?: " + x.getMessage());
	}
}
 

import java.net.SocketAddress; //导入依赖的package包/类
private Position parseCommandResponse(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) {
    DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
    if (deviceSession == null) {
        return null;
    }

    Position position = new Position();
    position.setProtocol(getProtocolName());
    position.setDeviceId(deviceSession.getDeviceId());

    getLastLocation(position, null);

    int responseTextLength = buf.bytesBefore((byte) 0);
    if (responseTextLength < 0) {
        responseTextLength = CMD_RESPONSE_SIZE - 3;
    }
    position.set(Position.KEY_RESULT, buf.readBytes(responseTextLength).toString(StandardCharsets.UTF_8));

    return position;
}
 

import java.net.SocketAddress; //导入依赖的package包/类
private boolean hasGoodReputation(ChannelHandlerContext ctx) {
    SocketAddress socketAddress = ctx.channel().remoteAddress();

    //TODO(mmarquez): and if not ???
    if (socketAddress instanceof InetSocketAddress) {

        InetAddress address = ((InetSocketAddress)socketAddress).getAddress();

        if (!peerScoringManager.hasGoodReputation(address)) {
            return false;
        }

        byte[] nid = channel.getNodeId();
        NodeID nodeID = nid != null ? new NodeID(nid) : null;

        if (nodeID != null && !peerScoringManager.hasGoodReputation(nodeID)) {
            return false;
        }

    }

    return true; //TODO(mmarquez): ugly
}
 

import java.net.SocketAddress; //导入依赖的package包/类
@Override
protected Object decode(
        Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {

    Parser parser = new Parser(PATTERN, (String) msg);
    if (!parser.matches()) {
        return null;
    }

    Position position = new Position();
    position.setProtocol(getProtocolName());

    DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
    if (deviceSession == null) {
        return null;
    }
    position.setDeviceId(deviceSession.getDeviceId());

    position.set(Position.KEY_STATUS, parser.next());

    position.setTime(parser.nextDateTime());

    position.setValid(parser.next().equals("A"));
    position.setLatitude(parser.nextCoordinate());
    position.setLongitude(parser.nextCoordinate());
    position.setSpeed(parser.nextDouble(0));

    return position;
}
 

import java.net.SocketAddress; //导入依赖的package包/类
private Collection<FullHttpResponse> processRequestsWithBody(HttpMethod method, SocketAddress remoteAddress, Tuple<String,
    CharSequence>... urisAndBodies) throws InterruptedException {
    Collection<HttpRequest> requests = new ArrayList<>(urisAndBodies.length);
    for (Tuple<String, CharSequence> uriAndBody : urisAndBodies) {
        ByteBuf content = Unpooled.copiedBuffer(uriAndBody.v2(), StandardCharsets.UTF_8);
        HttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, method, uriAndBody.v1(), content);
        request.headers().add(HttpHeaderNames.HOST, "localhost");
        request.headers().add(HttpHeaderNames.CONTENT_LENGTH, content.readableBytes());
        request.headers().add(HttpHeaderNames.CONTENT_TYPE, "application/json");
        requests.add(request);
    }
    return sendRequests(remoteAddress, requests);
}
 

import java.net.SocketAddress; //导入依赖的package包/类
public Server() throws IOException {
    ssc = SctpServerChannel.open().bind(null);
    java.util.Set<SocketAddress> addrs = ssc.getAllLocalAddresses();
    if (addrs.isEmpty())
        debug("addrs should not be empty");

    serverAddr = (InetSocketAddress) addrs.iterator().next();
}
 

import java.net.SocketAddress; //导入依赖的package包/类
@Test
public void testTryWithResourcesShouldCloseAllClustersButNotEventLoopAndTimerIfProvided()
    throws Exception {
  EventLoopGroup eventLoop = new DefaultEventLoopGroup();
  Timer timer = new HashedWheelTimer();
  BoundCluster cluster;
  MockClient client;

  try (Server server =
      Server.builder()
          .withAddressResolver(localAddressResolver)
          .withTimer(timer)
          .withEventLoopGroup(eventLoop, LocalServerChannel.class)
          .build()) {

    cluster = server.register(ClusterSpec.builder().withNodes(5));
    BoundNode node = cluster.node(0);
    SocketAddress address = node.getAddress();
    client = new MockClient(eventLoop);
    client.connect(address);
  }

  // event loop should not have been closed.
  assertThat(eventLoop.isShutdown()).isFalse();
  // timer should not have since a custom one was not provided.
  cluster
      .getServer()
      .timer
      .newTimeout(
          timeout -> {
            // noop
          },
          1,
          TimeUnit.SECONDS);

  eventLoop.shutdownGracefully(0, 0, TimeUnit.SECONDS);
  timer.stop();
}
 

import java.net.SocketAddress; //导入依赖的package包/类
public QueryLog addLog(
    Frame frame, SocketAddress socketAddress, long timestamp, Optional<StubMapping> stubOption) {
  boolean isPrimed = false;
  if (stubOption.isPresent()) {
    StubMapping stub = stubOption.get();
    isPrimed = !(stub instanceof InternalStubMapping);
  }
  QueryLog log = new QueryLog(frame, socketAddress, timestamp, isPrimed, stubOption);
  queryLog.add(log);
  return log;
}
 

import java.net.SocketAddress; //导入依赖的package包/类
/**
 * Returns the address to which the socket is connected.
 * 
 * @return ip address of the remote side of the connection or null if not
 *         connected
 */
@Override
SocketAddress getRemoteSocketAddress() {
    // a lot could go wrong here, so rather than put in a bunch of code
    // to check for nulls all down the chain let's do it the simple
    // yet bulletproof way
    try {
        return ((SocketChannel) sockKey.channel()).socket()
                .getRemoteSocketAddress();
    } catch (NullPointerException e) {
        return null;
    }
}
 

import java.net.SocketAddress; //导入依赖的package包/类
@Override
protected Object decode(
        Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {

    ChannelBuffer buf = (ChannelBuffer) msg;

    if (buf.getUnsignedByte(buf.readerIndex()) == 0x7e) {
        return decodeArMessage(channel, remoteAddress, buf);
    } else {
        return decodeMgMessage(channel, remoteAddress, buf);
    }
}