Package org.apache.activemq.transport.udp

Class UdpTransport

java.lang.Object
org.apache.activemq.util.ServiceSupport
org.apache.activemq.transport.TransportSupport
org.apache.activemq.transport.TransportThreadSupport
org.apache.activemq.transport.udp.UdpTransport
All Implemented Interfaces:
Runnable, Service, Transport
Direct Known Subclasses:
MulticastTransport
public class UdpTransport extends TransportThreadSupport implements Transport, Service, Runnable
An implementation of the Transport interface using raw UDP

  • Constructor Details

  • Method Details

    • createReplayer

      public Replayer createReplayer() throws IOException
      Creates a replayer for working with the reliable transport
      Throws:
      IOException

    • oneway

      public void oneway(Object command) throws IOException
      A one way asynchronous send
      Specified by:
      oneway in interface Transport
      Throws:
      IOException

    • oneway

      public void oneway(Object command, SocketAddress address) throws IOException
      A one way asynchronous send to a given address
      Throws:
      IOException

    • toString

      public String toString()
      Overrides:
      toString in class Object
      Returns:
      pretty print of 'this'

    • run

      public void run()
      reads packets from a Socket
      Specified by:
      run in interface Runnable

    • setTargetEndpoint

      public void setTargetEndpoint(Endpoint newTarget)
      We have received the WireFormatInfo from the server on the actual channel we should use for all future communication with the server, so lets set the target to be the actual channel that the server has chosen for us to talk on.

    • isTrace

      public boolean isTrace()

    • setTrace

      public void setTrace(boolean trace)

    • getDatagramSize

      public int getDatagramSize()

    • setDatagramSize

      public void setDatagramSize(int datagramSize)

    • isUseLocalHost

      public boolean isUseLocalHost()

    • setUseLocalHost

      public void setUseLocalHost(boolean useLocalHost)
      Sets whether 'localhost' or the actual local host name should be used to make local connections. On some operating systems such as Macs its not possible to connect as the local host name so localhost is better.

    • getCommandChannel

      public CommandChannel getCommandChannel() throws IOException
      Throws:
      IOException

    • setCommandChannel

      public void setCommandChannel(CommandDatagramChannel commandChannel)
      Sets the implementation of the command channel to use.

    • getReplayStrategy

      public ReplayStrategy getReplayStrategy()

    • setReplayStrategy

      public void setReplayStrategy(ReplayStrategy replayStrategy)
      Sets the strategy used to replay missed datagrams

    • getPort

      public int getPort()

    • setPort

      public void setPort(int port)
      Sets the port to connect on

    • getMinmumWireFormatVersion

      public int getMinmumWireFormatVersion()

    • setMinmumWireFormatVersion

      public void setMinmumWireFormatVersion(int minmumWireFormatVersion)

    • getWireFormat

      public OpenWireFormat getWireFormat()
      Description copied from interface: Transport
      Retrieves the WireFormat instance associated with this Transport instance.
      Specified by:
      getWireFormat in interface Transport
      Returns:
      the WireFormat in use.

    • getSequenceGenerator

      public IntSequenceGenerator getSequenceGenerator()

    • setSequenceGenerator

      public void setSequenceGenerator(IntSequenceGenerator sequenceGenerator)

    • isReplayEnabled

      public boolean isReplayEnabled()

    • setReplayEnabled

      public void setReplayEnabled(boolean replayEnabled)
      Sets whether or not replay should be enabled when using the reliable transport. i.e. should we maintain a buffer of messages that can be replayed?

    • getBufferPool

      public ByteBufferPool getBufferPool()

    • setBufferPool

      public void setBufferPool(ByteBufferPool bufferPool)

    • getReplayBuffer

      public ReplayBuffer getReplayBuffer()

    • setReplayBuffer

      public void setReplayBuffer(ReplayBuffer replayBuffer) throws IOException
      Throws:
      IOException

    • createAddress

      protected InetSocketAddress createAddress(URI remoteLocation) throws UnknownHostException, IOException
      Creates an address from the given URI
      Throws:
      UnknownHostException
      IOException

    • resolveHostName

      protected String resolveHostName(String host) throws UnknownHostException
      Throws:
      UnknownHostException

    • doStart

      protected void doStart() throws Exception
      Overrides:
      doStart in class TransportThreadSupport
      Throws:
      Exception

    • createCommandChannel

      protected CommandChannel createCommandChannel() throws IOException
      Throws:
      IOException

    • createCommandDatagramChannel

      protected CommandChannel createCommandDatagramChannel()

    • bind

      protected void bind(DatagramSocket socket, SocketAddress localAddress) throws IOException
      Throws:
      IOException

    • connect

      protected DatagramChannel connect(DatagramChannel channel, SocketAddress targetAddress2) throws IOException
      Throws:
      IOException

    • createLocalAddress

      protected SocketAddress createLocalAddress()

    • doStop

      protected void doStop(ServiceStopper stopper) throws Exception
      Specified by:
      doStop in class ServiceSupport
      Throws:
      Exception

    • createDatagramHeaderMarshaller

      protected DatagramHeaderMarshaller createDatagramHeaderMarshaller()

    • getProtocolName

      protected String getProtocolName()

    • getProtocolUriScheme

      protected String getProtocolUriScheme()

    • getTargetAddress

      protected SocketAddress getTargetAddress()

    • getChannel

      protected DatagramChannel getChannel()

    • setChannel

      protected void setChannel(DatagramChannel channel)

    • getLocalSocketAddress

      public InetSocketAddress getLocalSocketAddress()

    • getRemoteAddress

      public String getRemoteAddress()
      Specified by:
      getRemoteAddress in interface Transport
      Returns:
      the remote address for this connection

    • getReceiveCounter

      public int getReceiveCounter()
      Description copied from interface: Transport
      Returns a counter which gets incremented as data is read from the transport. It should only be used to determine if there is progress being made in reading the next command from the transport. The value may wrap into the negative numbers.
      Specified by:
      getReceiveCounter in interface Transport
      Returns:
      a counter which gets incremented as data is read from the transport.

    • getPeerCertificates

      public X509Certificate[] getPeerCertificates()
      Specified by:
      getPeerCertificates in interface Transport
      Returns:
      the Certificates provided by the peer, or null if not a secure channel.

    • setPeerCertificates

      public void setPeerCertificates(X509Certificate[] certificates)
      Description copied from interface: Transport
      Sets the certificates provided by the connected peer.
      Specified by:
      setPeerCertificates in interface Transport
      Parameters:
      certificates - the Certificates provided by the peer.