Examples of IORelation

ptolemy.actor.IORelation
This class mediates connections between ports that can send data to one another via message passing. One purpose of this relation is to ensure that IOPorts are only connected to IOPorts. A second purpose is to support the notion of a width to represent something like a bus. By default an IORelation is not a bus, which means that its width is one. Calling setWidth() with an argument larger than one makes the relation a bus of fixed width. Calling setWidth() with an argument of zero makes the relation a bus with indeterminate width, in which case the width will be inferred (if possible) from the context. In particular, if this relation is linked on the inside to a port with some width, then the width of this relation will be inferred to be the enough so that the widths of all inside linked relations adds up to the outside width of the port. The actual width of an IORelation can never be less than one. If this IORelation is linked to another instance of IORelation, then the width of the two IORelations is constrained to be the same.
Instances of IORelation can only be linked to instances of IOPort or instances of IORelation. Derived classes may further constrain this to subclasses of IOPort of IORelation. Such derived classes should override the protected methods _checkPort() and _checkRelation() to throw an exception.
To link a IOPort to an IORelation, use the link() or liberalLink() method in the IOPort class. To remove a link, use the unlink() method. To link (unlink) an IORelation to an IORelation, use the link() (unlink()) method of IORelation.
The container for instances of this class can only be instances of CompositeActor. Derived classes may wish to further constrain the container to subclasses of ComponentEntity. To do this, they should override the _checkContainer() method. @author Edward A. Lee, Jie Liu @version $Id: IORelation.java,v 1.101 2007/12/07 06:26:44 cxh Exp $ @since Ptolemy II 0.2 @Pt.ProposedRating Green (eal) @Pt.AcceptedRating Green (acataldo)

Examples of ptolemy.actor.IORelation

        }


        Iterator relations = actor.relationList().iterator();


        while (relations.hasNext()) {
            IORelation relation = (IORelation) relations.next();
            delete.append("<deleteRelation name=\"" + relation.getName()
                    + "\" class=\"ptolemy.actor.TypedIORelation\"/>");
        }


        delete.append("</group>");
        return delete.toString();

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Examples of ptolemy.actor.IORelation

                    }
                }


                connect(inputAdder.output, integrators[0].input);


                IORelation inputRelation = (IORelation) connect(input,
                        inputAdder.plus, "inputRelation");
                connect(output, outputAdder.output, "outputRelation");


                if (d != 0) {
                    Scale scaleD = new Scale(this, "ScaleD");

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Examples of ptolemy.actor.IORelation

        }


        LinkedList temporarySourcePortList = new LinkedList();


        while (newRelationList.size() > 0) {
            IORelation weights = (IORelation) newRelationList.getFirst();


            if (weights != null) {
                Iterator weightPorts = weights.linkedSourcePortList()
                        .iterator();


                while (weightPorts.hasNext()) {
                    IOPort weightPort = (IOPort) weightPorts.next();

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Examples of ptolemy.actor.IORelation

        }


        LinkedList temporaryDestinationPortList = new LinkedList();


        while (newRelationList.size() > 0) {
            IORelation weights = (IORelation) newRelationList.getFirst();


            if (weights != null) {
                Iterator weightPorts = weights.linkedDestinationPortList()
                        .iterator();


                while (weightPorts.hasNext()) {
                    IOPort weightPort = (IOPort) weightPorts.next();


                    if (!temporaryDestinationPortList.contains(weightPort)) {
                        temporaryDestinationPortList.add(weightPort);


                        Nameable weightPlace = weightPort.getContainer();


                        if (weightPlace instanceof PetriNetActor) {
                            if (weightPort.isOutput()) {
                                newRelationList.addAll(weightPort
                                        .linkedRelationList());
                            } else if (weightPort.isInput()) {
                                newRelationList.addAll(weightPort
                                        .insideRelationList());
                            }
                        } else if (weightPlace instanceof Place) {
                            // Don't do anything for Place
                        } else {
                            _debug("something wrong "
                                    + weightPlace.getFullName());
                        }
                    }
                }


                int weightNumber = _getWeightNumber(weights);
                LinkedList forwardConnectedPlaces = _findForwardConnectedPlaces(weights);
                Iterator forwardConnectedPlace = forwardConnectedPlaces
                        .iterator();
                int itemCount = 0;


                while (forwardConnectedPlace.hasNext()) {
                    Place forwardPlace = (Place) forwardConnectedPlace.next();
                    itemCount++;


                    int oldToken = forwardPlace.getMarking();
                    forwardPlace.increaseMarking(weightNumber);


                    if (_debugging) {
                        _debug("              the " + itemCount + " place is "
                                + forwardPlace.getFullName() + " old  "
                                + oldToken + " new "
                                + forwardPlace.getMarking());
                    }
                }
            }


            newRelationList.remove(weights);
        }


        LinkedList backRelationList = new LinkedList();
        Iterator inputPorts = transition.inputPortList().iterator();


        while (inputPorts.hasNext()) {
            IOPort inPort = (IOPort) inputPorts.next();
            backRelationList.addAll(inPort.linkedRelationList());
        }


        LinkedList temporarySourcePortList = new LinkedList();


        while (backRelationList.size() > 0) {
            IORelation weights = (IORelation) backRelationList.getFirst();


            if (weights != null) {
                Iterator weightPorts = weights.linkedSourcePortList()
                        .iterator();


                while (weightPorts.hasNext()) {
                    IOPort weightPort = (IOPort) weightPorts.next();

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Examples of ptolemy.actor.IORelation


        LinkedList temporaryDestinationPortList = new LinkedList();
        LinkedList temporaryPlaceList = new LinkedList();


        while (newRelationList.size() > 0) {
            IORelation weights = (IORelation) newRelationList.getFirst();
            Iterator weightPorts = weights.linkedDestinationPortList()
                    .iterator();


            while (weightPorts.hasNext()) {
                IOPort weightPort = (IOPort) weightPorts.next();

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Examples of ptolemy.actor.IORelation


        LinkedList temporarySourcePortList = new LinkedList();
        LinkedList temporaryPlaceList = new LinkedList();


        while (newRelationList.size() > 0) {
            IORelation weights = (IORelation) newRelationList.getFirst();
            Iterator weightPorts = weights.linkedSourcePortList().iterator();


            while (weightPorts.hasNext()) {
                IOPort weightPort = (IOPort) weightPorts.next();


                if (!temporarySourcePortList.contains(weightPort)) {

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Examples of ptolemy.actor.IORelation

        }


        LinkedList temporaryPlaceList = new LinkedList();


        while (newRelationList.size() > 0) {
            IORelation weights = (IORelation) newRelationList.getFirst();
            temporaryPlaceList.addAll(_findBackwardConnectedPlaces(weights));
            newRelationList.remove(weights);
        }


        return temporaryPlaceList;

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Examples of ptolemy.actor.IORelation

        // Probably need to recursively descend into composite actors.
        CompositeEntity container = (CompositeEntity) getContainer();
        Iterator relations = container.relationList().iterator();


        while (relations.hasNext()) {
            IORelation relation = (IORelation) relations.next();


            if (relation.linkedSourcePortList().size() > 1) {
                throw new IllegalActionException(relation,
                        "Relation has multiple sources of data,"
                                + " which is not allowed in PN."
                                + " If you want nondeterministic merge,"
                                + " use the NondeterministicMerge actor.");

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Examples of ptolemy.actor.IORelation


                    Iterator relations = inPort.linkedRelationList().iterator();
                    int channelIndex = 0;


                    while (relations.hasNext()) {
                        IORelation relation = (IORelation) relations.next();
                        boolean linked = false;


                        for (int i = 0; i < actors.length; ++i) {
                            Iterator outports = actors[i].outputPortList()
                                    .iterator();


                            while (outports.hasNext()) {
                                IOPort outport = (IOPort) outports.next();
                                linked = linked | outport.isLinked(relation);
                            }
                        }


                        for (int j = 0; j < relation.getWidth(); ++j) {
                            flags[channelIndex + j] = linked;
                        }


                        channelIndex += relation.getWidth();
                    }


                    stateMap.put(inPort, flags);
                }

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Examples of ptolemy.actor.IORelation

                    _inputTokensHolder.put(port, tokens);
                }


                // Connect the corresponding ports of both actors.
                IOPort matchingPort = (IOPort) clone.getPort(port.getName());
                IORelation relation = (IORelation) newRelation("r_" + i++);
                port.link(relation);
                matchingPort.link(relation);


                if (port.isMultiport()) {
                    relation.setWidth(port.getWidth());
                }
            }
        } catch (NameDuplicationException ex) {
            throw new IllegalActionException(this, "name duplication.");
        }

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