Package net.sf.colossus.webserver

Class PortBookKeeper

  • All Implemented Interfaces:
    IPortProvider
    public class PortBookKeeper
extends java.lang.Object
implements IPortProvider
    This class keeps track of which ports are currently occupied by ongoing games and which are free for new games.
    Author:
    Clemens Katzer

    • Field Detail

      • LOGGER

        private static final java.util.logging.Logger LOGGER

      • portRangeFrom

        private final int portRangeFrom

      • totalPorts

        private final int totalPorts
        total nr of ports we are allowed to use according to options file; but only every 2nd is used as a game port

      • gamePorts

        private final int gamePorts
        Nr of ports that are actually available for game serving (so, this value == 5 means there can be 5 games)

      • portInUse

        private final java.util.ArrayList<GameInfo> portInUse
        Bookkeeping which (game) ports are currently in use

      • NOT_A_REAL_GAME

        private final GameInfo NOT_A_REAL_GAME
        A placeholder for the bookkeping table, if it's somehow used but we don't know by what or whom

    • Constructor Detail

      • PortBookKeeper

        public PortBookKeeper​(int portRangeStart,
                      int availablePorts)

    • Method Detail

      • realPortForIndex

        private int realPortForIndex​(int portIndex)

      • indexForRealPort

        private int indexForRealPort​(int portNumber)

      • markPortUsed

        private void markPortUsed​(int portNr,
                          GameInfo gi)

      • markPortFree

        private void markPortFree​(int portNr)

      • getGameAtPort

        private GameInfo getGameAtPort​(int portNr)

      • isPortInUse

        private boolean isPortInUse​(int portNr)

      • countFreePorts

        public int countFreePorts()

      • testThatPortReallyFree

        private boolean testThatPortReallyFree​(int port)
        Check that it's really free, as expected, log a warning if not

      • testWhetherPortFree

        private boolean testWhetherPortFree​(int port)
        Just check it, whether it's free or not

      • ensureSomeFreePortsRemain

        private void ensureSomeFreePortsRemain()

      • reCheckPorts

        private void reCheckPorts()

      • releasePort

        public void releasePort​(GameInfo gi)

      • buildPortTableReport

        private java.lang.String buildPortTableReport()

      • getStatus

        public java.lang.String getStatus()