java.lang.Object
edu.internet2.ndt.OsfwWorker
All Implemented Interfaces:
Runnable
public class OsfwWorkerextends Object implements Runnable

OsfwWorker creates a thread that listens for a message from the server. It functions to check if the server has sent a message that is valid and sufficient to determine if the server->client direction has a fire-wall.

As part of the simple firewall test, the Server must try to connect to the Client's ephemeral port and send a TEST_MSG message containing a pre-defined string "Simple firewall test" of 20 chars using this newly created connection. This class implements this functionality.

The result of the test is set back into the Tcpbw100._iS2cSFWResult variable (using setter methods) for the test results to be interpreted later.

  • Field Details

    • _srvSocket

      private final ServerSocket _srvSocket
      Socket the test connections arrive on.

    • _iTestTime

      private final int _iTestTime
      How long the test should run, in seconds.

    • _iFinalized

      private boolean _iFinalized
      True once the results have been sent.

    • _localTcpAppObj

      private final Tcpbw100 _localTcpAppObj
      The local test application, for the queue state.

  • Constructor Details

    • OsfwWorker

      OsfwWorker(ServerSocket srvSocketParam, int iParamTestTime)
      Stores the socket and test duration, leaving the applet reference null.
      Parameters:
      srvSocketParam - Socket used to transmit protocol messages
      iParamTestTime - Test time duration to wait for message from server

    • OsfwWorker

      OsfwWorker(ServerSocket srvSocketParam, int iParamTestTime, Tcpbw100 _localParam)
      Constructor accepting Tcpbw100 parameter.
      Parameters:
      srvSocketParam - Socket on which to accept connections
      iParamTestTime - Test time duration to wait for message from server
      _localParam - Applet object used to set the result of the S->C firewall test

  • Method Details

    • run

      public void run()
      run() method of this SFW Worker thread. This thread listens on the socket from the server for a given time period, and checks to see if the server has sent a message that is valid and sufficient to determine if the S->C direction has a fire-wall.
      Specified by:
      run in interface Runnable