Class NioSender

java.lang.Object
org.apache.catalina.tribes.transport.AbstractSender
org.apache.catalina.tribes.transport.nio.NioSender
All Implemented Interfaces:
DataSender

public class NioSender extends AbstractSender
This class is NOT thread safe and should never be used with more than one thread at a time This is a state machine, handled by the process method States are:
  • NOT_CONNECTED -> connect() -> CONNECTED
  • CONNECTED -> setMessage() -> READY TO WRITE
  • READY_TO_WRITE -> write() -> READY TO WRITE | READY TO READ
  • READY_TO_READ -> read() -> READY_TO_READ | TRANSFER_COMPLETE
  • TRANSFER_COMPLETE -> CONNECTED
  • Field Details

    • sm

      protected static final StringManager sm
    • selector

      protected Selector selector
    • socketChannel

      protected SocketChannel socketChannel
    • dataChannel

      protected DatagramChannel dataChannel
    • readbuf

      protected ByteBuffer readbuf
    • writebuf

      protected ByteBuffer writebuf
    • current

      protected volatile byte[] current
    • ackbuf

      protected final XByteBuffer ackbuf
    • remaining

      protected int remaining
    • complete

      protected boolean complete
    • connecting

      protected boolean connecting
  • Constructor Details

    • NioSender

      public NioSender()
  • Method Details

    • process

      public boolean process(SelectionKey key, boolean waitForAck) throws IOException
      State machine to send data.
      Parameters:
      key - The key to use
      waitForAck - Wait for an ack
      Returns:
      true if the processing was successful
      Throws:
      IOException - An IO error occurred
    • read

      protected boolean read() throws IOException
      Throws:
      IOException
    • write

      protected boolean write() throws IOException
      Throws:
      IOException
    • connect

      public void connect() throws IOException
      Description copied from interface: DataSender
      Connect.
      Throws:
      IOException - when an error occurs
    • disconnect

      public void disconnect()
      Description copied from interface: DataSender
      Disconnect.
    • reset

      public void reset()
    • setMessage

      public void setMessage(byte[] data) throws IOException
      Send message.
      Parameters:
      data - ChannelMessage
      Throws:
      IOException - if an error occurs
    • setMessage

      public void setMessage(byte[] data, int offset, int length) throws IOException
      Throws:
      IOException
    • getMessage

      public byte[] getMessage()
    • isComplete

      public boolean isComplete()
    • getSelector

      public Selector getSelector()
    • setSelector

      public void setSelector(Selector selector)
    • setComplete

      public void setComplete(boolean complete)