Examples of ptolemy.domains.wireless.kernel.WirelessIOPort

ptolemy.domains.wireless.kernel.WirelessIOPort
This port communicates via channels without wired connections. Channels are instances of WirelessChannel. The port references channels by name, where the name is specified by the outsideChannel or insideChannel parameter.
This port can be used on the boundary of wireless domain models. A port is outside wireless if an outside channel name is given and a wireless channel with the given name is contained by the container of the port's container (transparent hierarchy is not supported). Specially, it will use the specified wireless channel to communicate on the outside. A port is inside wireless if an inside channel name is given and a wireless channel with the given name is contained by the container of this port. It will use the specified wireless channel to communicate on the inside. If no outside channel or inside channel name is given or the named channel does not exist, then the behavior of the port reverts to that of the base class. Specifically, it will only communicate if it is wired.
It is valid for a model using the wireless director to have both wireless communication and wired communication, i.e. it may contain actors with ports using wireless communication (by specifying a wireless channel) and actors with ports using wired communication. If a port is outside/inside wireless(a wireless channel is specified), it will ignore all the communication through the wired connections to it if there is any on the outside/inside of it.
The width of this port on either side that is using wireless communication is fixed at one. Otherwise, it depends on the number of links to the port.
When this port is used for wireless communications, nothing is connected to it. Consequently, methods that access the topology such as connectedPortList() and deepConnectedInPortList() return an empty list. There are no deeply connected ports. However, sinkPortList() returns the port of the specified wireless channel. A consequence of this is that type constraints are automatically set up between ports that send on the channel and the channel port. @author Edward A. Lee and Xiaojun Liu @version $Id: WirelessIOPort.java,v 1.42 2006/08/21 23:16:29 cxh Exp $ @since Ptolemy II 4.0 @Pt.ProposedRating Green (cxh) @Pt.AcceptedRating Yellow (cxh)

            // an approximation, and needs to be fully characterized.
            // Also, the receiver needs to be in range at the
            // conclusion of the propagation, whereas this method is
            // called only if the receiver is in range at the
            // initiation of the transmission.
            WirelessIOPort destination = (WirelessIOPort) receiver
                    .getContainer();
            double distance = _distanceBetween(sender, destination);
            Time time = director.getModelTime().add(distance / speed);


            if (_receptions == null) {

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        // Create and configure the parameters.
        outputChannelName = new StringParameter(this, "outputChannelName");
        outputChannelName.setExpression("AtomicWirelessChannel");


        // Create and configure the ports.
        output = new WirelessIOPort(this, "output", false, true);
        output.outsideChannel.setExpression("$outputChannelName");
        output.setTypeSameAs(payload);


        _attachText("_iconDescription", "<svg>\n"
                + "<polygon points=\"-15,-15 15,15 15,-15 -15,15\" "

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        range = new Parameter(this, "range");
        range.setToken("50.0");
        range.setTypeEquals(BaseType.DOUBLE);


        // Create and configure the ports.
        input = new WirelessIOPort(this, "input", true, false);
        input.outsideChannel.setExpression("$messageChannelName");


        signal = new WirelessIOPort(this, "signal", true, false);
        signal.outsideChannel.setExpression("$signalChannelName");
        signal.setTypeEquals(BaseType.STRING);


        output = new WirelessIOPort(this, "output", false, true);
        output.outsideChannel.setExpression("$outputChannelName");


        // Since this actor sources the data at this port, we have to
        // declare the type.
        TypeAttribute portType = new TypeAttribute(output, "type");

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        testChannelName = new StringParameter(this, "testChannelName");
        testChannelName.setExpression("testChannel");


        // Create and configure the ports.
        input = new WirelessIOPort(this, "input", true, false);
        input.outsideChannel.setExpression("$inputChannelName");


        //FIXME: this type configuration doesn't work.
        //TypeAttribute inputPortType = new TypeAttribute(input, "type");
        //inputPortType.setExpression
        //    ("{data=double, destination=String, routeTo=String, hops=int}");
        output = new WirelessIOPort(this, "output", false, true);
        output.outsideChannel.setExpression("$outputChannelName");


        //TypeAttribute outputPortType = new TypeAttribute(output, "type");
        //outputPortType.setExpression
        //    ("{data=double, destination=String, routeTo=String, hops=int}");
        test = new WirelessIOPort(this, "test", false, true);
        test.outsideChannel.setExpression("$testChannelName");
        test.setTypeEquals(BaseType.INT);


        lossProbability = new Parameter(this, "lossProbability");
        lossProbability.setTypeEquals(BaseType.DOUBLE);

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        CompositeEntity container = (CompositeEntity) getContainer();
        Iterator ports = ModelTopology.listeningInputPorts(container,
                outputChannelName.stringValue()).iterator();


        while (ports.hasNext()) {
            WirelessIOPort port = (WirelessIOPort) ports.next();


            // Skip ports contained by the same container as the source.
            if (port.getContainer() == sourcePort.getContainer()) {
                continue;
            }


            double distance = ModelTopology.distanceBetween(sourcePort, port);
            _distance.setToken(new DoubleToken(distance));


            double experiment = _random.nextDouble();
            double probability = ((DoubleToken) lossProbability.getToken())
                    .doubleValue();


            if (_debugging) {
                _debug(" **** loss probability is: " + probability);
            }


            // Make sure a probability of 1.0 is truly a sure loss.
            if ((probability < 1.0) && (experiment >= probability)) {
                nodesInRangeList.add(port.getContainer());
            }
        }


        return nodesInRangeList;
    }

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            while (ports.hasNext()) {
                Port port = (Port) ports.next();


                if (port instanceof WirelessIOPort) {
                    WirelessIOPort castPort = (WirelessIOPort) port;


                    if (castPort.isInput()) {
                        String channelName = castPort.outsideChannel
                                .stringValue();


                        if (channelName.equals(theChannelName)) {
                            result.add(port);

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        while (ports.hasNext()) {
            Port port = (Port) ports.next();


            if (port instanceof WirelessIOPort) {
                WirelessIOPort castPort = (WirelessIOPort) port;


                if (castPort.isOutput()) {
                    String channelName = castPort.insideChannel.stringValue();


                    if (channelName.equals(theChannelName)) {
                        result.add(port);
                    }

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        while (ports.hasNext()) {
            Port port = (Port) ports.next();


            if (port instanceof WirelessIOPort) {
                WirelessIOPort castPort = (WirelessIOPort) port;


                if (castPort.isInput()) {
                    String channelName = castPort.insideChannel.stringValue();


                    if (channelName.equals(theChannelName)) {
                        result.add(port);
                    }

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            while (ports.hasNext()) {
                Port port = (Port) ports.next();


                if (port instanceof WirelessIOPort) {
                    WirelessIOPort castPort = (WirelessIOPort) port;


                    if (castPort.isOutput()) {
                        String channelName = castPort.outsideChannel
                                .stringValue();


                        if (channelName.equals(theChannelName)) {
                            result.add(port);

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    public CollisionDetector(CompositeEntity container, String name)
            throws IllegalActionException, NameDuplicationException {
        super(container, name);


        // Create and configure the ports.
        message = new WirelessIOPort(this, "message", true, false);
        (new SingletonParameter(message, "_showName"))
                .setToken(BooleanToken.TRUE);


        power = new TypedIOPort(this, "power", true, false);
        power.setTypeEquals(BaseType.DOUBLE);

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