Examples of org.jgroups.demos.Gossip$Command

x10.Command
Demos that tries to graphically illustrating the gossip (or pbcast) protocol: every sender periodically sends a DRAW command to a random subset of the group members. Each member checks whether it already received the message and applies it if not yet received. Otherwise it discards it. If not yet received, the message will be forwarded to 10% of the group members. This demo is probably only interesting when we have a larger number of members: a gossip will gradually reach all members, coloring their whiteboards.

    /**
     * Create an instance of {@link Command }
     * 
     */
    public Command createCommand() {
        return new Command();
    }

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        } else {
          throw new IOException("Unexpected character");
        }
      }
      try {
        out.add(new Command(bytes));
      } finally {
        bytes = null;
        arguments = 0;
      }
    } else if (in.readByte() == '*') {
      long l = readLong(in);
      if (l > Integer.MAX_VALUE) {
        throw new IllegalArgumentException("Java only supports arrays up to " + Integer.MAX_VALUE + " in size");
      }
      int numArgs = (int) l;
      if (numArgs < 0) {
        throw new RedisException("Invalid size: " + numArgs);
      }
      bytes = new byte[numArgs][];
      checkpoint();
      decode(ctx, in, out);
    } else {
      // Go backwards one
      in.readerIndex(in.readerIndex() - 1);
      // Read command -- can't be interupted
      byte[][] b = new byte[1][];
      b[0] = in.readBytes(in.bytesBefore((byte) '\r')).array();
      in.skipBytes(2);
      out.add(new Command(b, true));
    }
  }

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        boolean isOff = _hasTrueInput(off);
        boolean isOn = _hasTrueInput(on);


        if ((brightLevel >= 0) && (brightLevel <= 100)) {
            _transmit(new Command((_destination), x10.Command.BRIGHT,
                    brightLevel));
        }


        if ((dimLevel >= 0) && (dimLevel <= 100)) {
            _transmit(new Command((_destination), x10.Command.DIM, dimLevel));
        }


        if (isOn) {
            _transmit(new Command((_destination), x10.Command.ON));
        }


        if (isOff) {
            _transmit(new Command((_destination), x10.Command.OFF));
        }
    }

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    public void fire() throws IllegalActionException {
        super.fire();


        // Check whether a command is ready.
        if (_commandReady()) {
            Command command = _getCommand();
            receivedCommand.send(0, new StringToken(_commandToString(command)));
        } else {
            receivedCommand.send(0, _EMPTY_STRING);
        }
    }

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    public void fire() throws IllegalActionException {
        super.fire();


        // Check whether a command is ready
        if (_commandReady()) {
            Command sensedCommand = _getCommand();
            byte function = sensedCommand.getFunctionByte();
            byte functionOfInterest = Command.BRIGHT;
            String commandValue = command.stringValue();


            if (!commandValue.equals("BRIGHT")) {
                functionOfInterest = Command.DIM;
            }


            String sensedHouseCode = "" + sensedCommand.getHouseCode();
            int sensedUnitCode = sensedCommand.getUnitCode();


            String houseCodeValue = houseCode.stringValue();
            int unitCodeValue = ((IntToken) unitCode.getToken()).intValue();


            if (sensedHouseCode.equals(houseCodeValue)
                    && (sensedUnitCode == unitCodeValue)
                    && (function == functionOfInterest)) {
                level.send(0, new IntToken(sensedCommand.getLevel()));
            } else {
                level.send(0, _NO_COMMAND_TOKEN);
            }
        } else {
            level.send(0, _NO_COMMAND_TOKEN);

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        boolean isOn = _hasTrueInput(on);
        boolean isOff = _hasTrueInput(off);


        if (isOn) {
            _transmit(new Command((_destination), x10.Command.ON));
        }


        if (isOff) {
            _transmit(new Command((_destination), x10.Command.OFF));
        }
    }

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    public void fire() throws IllegalActionException {
        super.fire();


        // Check whether a command is ready
        if (_commandReady()) {
            Command sensedCommand = _getCommand();
            byte function = sensedCommand.getFunctionByte();
            byte functionOfInterest = Command.ON;
            String commandValue = command.stringValue();


            if (commandValue.equals("OFF")) {
                functionOfInterest = Command.OFF;
            } else if (commandValue.equals("ALL_LIGHTS_ON")) {
                functionOfInterest = Command.ALL_LIGHTS_ON;
            } else if (commandValue.equals("ALL_LIGHTS_OFF")) {
                functionOfInterest = Command.ALL_LIGHTS_OFF;
            } else if (commandValue.equals("ALL_UNITS_OFF")) {
                functionOfInterest = Command.ALL_UNITS_OFF;
            }


            String sensedHouseCode = "" + sensedCommand.getHouseCode();
            int sensedUnitCode = sensedCommand.getUnitCode();


            String houseCodeValue = houseCode.stringValue();
            int unitCodeValue = ((IntToken) unitCode.getToken()).intValue();


            if (sensedHouseCode.equals(houseCodeValue)

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