/* A DDE application illustrating localized Zeno conditions.
Copyright (c) 1999-2006 The Regents of the University of California.
All rights reserved.
Permission is hereby granted, without written agreement and without
license or royalty fees, to use, copy, modify, and distribute this
software and its documentation for any purpose, provided that the above
copyright notice and the following two paragraphs appear in all copies
of this software.
IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
ENHANCEMENTS, OR MODIFICATIONS.
PT_COPYRIGHT_VERSION_2
COPYRIGHTENDKEY
*/
package ptolemy.domains.dde.demo.LocalZeno;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.util.HashMap;
import javax.swing.BoxLayout;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
import javax.swing.SwingUtilities;
import ptolemy.actor.TypedCompositeActor;
import ptolemy.actor.gui.PtolemyApplet;
import ptolemy.actor.lib.Const;
import ptolemy.actor.lib.gui.TimedPlotter;
import ptolemy.data.DoubleToken;
import ptolemy.domains.dde.kernel.DDEDirector;
import ptolemy.kernel.ComponentEntity;
import ptolemy.kernel.Relation;
import ptolemy.kernel.util.DebugEvent;
import ptolemy.kernel.util.DebugListener;
import ptolemy.kernel.util.NamedObj;
import ptolemy.kernel.util.Workspace;
import diva.canvas.Figure;
import diva.canvas.Site;
import diva.canvas.connector.Arrowhead;
import diva.canvas.connector.Connector;
import diva.canvas.connector.StraightConnector;
import diva.canvas.interactor.SelectionDragger;
import diva.canvas.toolbox.BasicEllipse;
import diva.canvas.toolbox.BasicFigure;
import diva.canvas.toolbox.BasicRectangle;
import diva.canvas.toolbox.LabelWrapper;
import diva.graph.BasicEdgeController;
import diva.graph.BasicNodeController;
import diva.graph.EdgeRenderer;
import diva.graph.GraphController;
import diva.graph.GraphModel;
import diva.graph.GraphPane;
import diva.graph.JGraph;
import diva.graph.MutableGraphModel;
import diva.graph.NodeRenderer;
import diva.graph.basic.BasicGraphController;
import diva.graph.basic.BasicGraphModel;
import diva.graph.basic.BasicLayoutTarget;
import diva.graph.layout.LayoutTarget;
import diva.graph.layout.LevelLayout;
//////////////////////////////////////////////////////////////////////////
//// LocalZenoApplet
/**
* A DDE application illustrating localized Zeno conditions.
*
* @author John S. Davis II (davisj)
* @author Michael Shilman (michaels)
* @version $Id: LocalZenoApplet.java,v 1.73 2007/12/16 07:29:46 cxh Exp $
* @since Ptolemy II 0.3
* @Pt.ProposedRating Yellow (davisj)
* @Pt.AcceptedRating Red (davisj)
*/
public class LocalZenoApplet extends PtolemyApplet {
///////////////////////////////////////////////////////////////////
//// public methods ////
/** Override the baseclass start method so that the model
* does not immediately begin executing as soon as the
* the applet page is displayed. Execution begins once
* the "Go" button is depressed. Layout the graph visualization,
* since this can't be done in the init method, because the graph
* hasn't yet been displayed.
*/
public void start() {
_doLayout(_graph, _jgraph.getGraphPane());
}
///////////////////////////////////////////////////////////////////
//// protected methods ////
/** Construct the graph representing the topology.
* This is sort of bogus because it's totally hard-wired,
* but it will do for now...
*/
protected MutableGraphModel _constructDivaGraph() {
BasicGraphModel model = new BasicGraphModel();
Object root = model.getRoot();
// Objects, with user object set to the actor
Object n1 = model.createNode(_clock);
Object n2 = model.createNode(_join1);
Object n3 = model.createNode(_fork1);
Object n4 = model.createNode(_fBack1);
Object n5 = model.createNode(_rcvr1);
Object n6 = model.createNode(_join2);
Object n7 = model.createNode(_fork2);
Object n8 = model.createNode(_fBack2);
Object n9 = model.createNode(_rcvr2);
model.addNode(this, n1, root);
model.addNode(this, n2, root);
model.addNode(this, n3, root);
model.addNode(this, n4, root);
model.addNode(this, n5, root);
model.addNode(this, n6, root);
model.addNode(this, n7, root);
model.addNode(this, n8, root);
model.addNode(this, n9, root);
_nodeMap.put(_clock, n1);
_nodeMap.put(_join1, n2);
_nodeMap.put(_fork1, n3);
_nodeMap.put(_fBack1, n4);
_nodeMap.put(_rcvr1, n5);
_nodeMap.put(_join2, n6);
_nodeMap.put(_fork2, n7);
_nodeMap.put(_fBack2, n8);
_nodeMap.put(_rcvr2, n9);
// Edges
Object e;
e = model.createEdge(null);
model.setEdgeTail(this, e, n1);
model.setEdgeHead(this, e, n2);
e = model.createEdge(null);
model.setEdgeTail(this, e, n2);
model.setEdgeHead(this, e, n3);
e = model.createEdge(null);
model.setEdgeTail(this, e, n4);
model.setEdgeHead(this, e, n2);
e = model.createEdge(null);
model.setEdgeTail(this, e, n3);
model.setEdgeHead(this, e, n4);
e = model.createEdge(null);
model.setEdgeTail(this, e, n3);
model.setEdgeHead(this, e, n5);
e = model.createEdge(null);
model.setEdgeTail(this, e, n1);
model.setEdgeHead(this, e, n6);
e = model.createEdge(null);
model.setEdgeTail(this, e, n7);
model.setEdgeHead(this, e, n8);
e = model.createEdge(null);
model.setEdgeTail(this, e, n6);
model.setEdgeHead(this, e, n7);
e = model.createEdge(null);
model.setEdgeTail(this, e, n7);
model.setEdgeHead(this, e, n9);
e = model.createEdge(null);
model.setEdgeTail(this, e, n8);
model.setEdgeHead(this, e, n6);
return model;
}
/** Construct the Ptolemy model; instantiate all
* actors and make connections.
*/
protected NamedObj _createModel(Workspace workspace) throws Exception {
TypedCompositeActor toplevel = new TypedCompositeActor(workspace);
_toplevel = toplevel;
DDEDirector director = new DDEDirector(toplevel, "DDE Director");
director.stopTime.setExpression("90.0");
// Instantiate the Actors
_clock = new ListenClock(toplevel, "Clock");
_clock.values.setExpression("{1, 1, 1}");
_clock.period.setToken(new DoubleToken(20.0));
_clock.offsets.setExpression("{5.0, 10.0, 15.0}");
_join1 = new ListenWire(toplevel, "UpperJoin");
_fork1 = new ListenFork(toplevel, "UpperFork");
_fBack1 = new ListenFeedBackDelay(toplevel, "UpperFeedBack");
_join2 = new ListenWire(toplevel, "LowerJoin");
_fork2 = new ListenFork(toplevel, "LowerFork");
_fBack2 = new ZenoDelay(toplevel, "LowerFeedBack");
_rcvr1 = new ListenSink(toplevel, "UpperRcvr");
_rcvr2 = new ListenSink(toplevel, "LowerRcvr");
_upperTime = new Const(toplevel, "upperTime");
_upperPlotter = new TimedPlotter(toplevel, "upperPlotter");
_lowerTime = new Const(toplevel, "lowerTime");
_lowerPlotter = new TimedPlotter(toplevel, "lowerPlotter");
//_fBack1.delay.setToken(new DoubleToken(4.5));
//_fBack2.delay.setToken(new DoubleToken(4.5));
_fBack1.delay.setToken(new DoubleToken(1.0));
_fBack2.delay.setToken(new DoubleToken(1.0));
// Set up ports, relations and connections
Relation clkRelation = toplevel.connect(_clock.output, _join1.input);
_join2.input.link(clkRelation);
toplevel.connect(_join1.output, _fork1.input);
toplevel.connect(_fork1.output1, _rcvr1.input);
toplevel.connect(_fork1.output2, _fBack1.input);
toplevel.connect(_fBack1.output, _join1.input);
toplevel.connect(_join2.output, _fork2.input);
toplevel.connect(_fork2.output1, _rcvr2.input);
toplevel.connect(_fork2.output2, _fBack2.input);
toplevel.connect(_fBack2.output, _join2.input);
toplevel.connect(_fork1.output1, _upperTime.trigger);
toplevel.connect(_upperTime.output, _upperPlotter.input);
toplevel.connect(_fork2.output1, _lowerTime.trigger);
toplevel.connect(_lowerTime.output, _lowerPlotter.input);
//System.out.println(toplevel.exportMoML());
return toplevel;
}
/** Create a custom view to control execution of the model and display
* its results. Derived classes may override this to do something
* different.
*/
protected void _createView() {
getContentPane().setLayout(
new BoxLayout(getContentPane(), BoxLayout.Y_AXIS));
// Create control panels.
super._createView();
// Panel for controls and plotter
JPanel topPanel = new JPanel();
topPanel.setSize(new Dimension(600, 200));
topPanel.setBackground(null);
_plotPanel = new JPanel();
_plotPanel.setSize(new Dimension(600, 200));
_plotPanel.setBackground(getBackground());
topPanel.add(_plotPanel);
_upperPlotter.place(_plotPanel);
_upperPlotter.plot.setTitle("Upper Branch");
_upperPlotter.plot.setXRange(0.0, 90.0);
_upperPlotter.plot.setYRange(-1.0, 1.0);
_upperPlotter.plot.setSize(200, 150);
_upperPlotter.plot.addLegend(0, "Time");
_lowerPlotter.place(_plotPanel);
_lowerPlotter.plot.setTitle("Lower Branch");
_lowerPlotter.plot.setXRange(0.0, 90.0);
_lowerPlotter.plot.setYRange(-1.0, 1.0);
_lowerPlotter.plot.setSize(200, 150);
_lowerPlotter.plot.addLegend(0, "Time");
getContentPane().add(topPanel);
_divaPanel = new JPanel(new BorderLayout());
_divaPanel.setSize(new Dimension(600, 400));
_divaPanel.setBackground(null);
getContentPane().add(_divaPanel);
_graph = _constructDivaGraph();
// display the graph.
final GraphController gc = new LocalZenoGraphController();
final GraphPane gp = new GraphPane(gc, _graph);
_jgraph = new JGraph(gp);
_divaPanel.add(_jgraph);
StateListener listener = new StateListener((GraphPane) _jgraph
.getCanvasPane());
_join1.addDebugListener(listener);
_join2.addDebugListener(listener);
_fork1.addDebugListener(listener);
_fork2.addDebugListener(listener);
_fBack1.addDebugListener(listener);
_fBack2.addDebugListener(listener);
_rcvr1.addDebugListener(listener);
_rcvr2.addDebugListener(listener);
_clock.addDebugListener(listener);
}
/** Layout the graph again.
*/
protected void _doLayout(GraphModel graph, GraphPane gp) {
// Do the layout
try {
final GraphModel layoutGraph = graph;
final GraphController gc = gp.getGraphController();
final GraphPane pane = gp;
SwingUtilities.invokeLater(new Runnable() {
public void run() {
// Layout is a bit stupid
LayoutTarget target = new BasicLayoutTarget(gc);
LevelLayout staticLayout = new LevelLayout(target);
staticLayout.setOrientation(LevelLayout.HORIZONTAL);
staticLayout.layout(layoutGraph.getRoot());
pane.repaint();
}
});
} catch (Exception e) {
System.out.println(e);
}
}
///////////////////////////////////////////////////////////////////
//// private variables ////
// The Actors
private ListenClock _clock;
private ListenWire _join1;
private ListenFork _fork1;
private ListenFeedBackDelay _fBack1;
private ListenSink _rcvr1;
private ListenWire _join2;
private ListenFork _fork2;
private ZenoDelay _fBack2;
private ListenSink _rcvr2;
private Const _upperTime;
private Const _lowerTime;
private TimedPlotter _upperPlotter;
private TimedPlotter _lowerPlotter;
// Plot Panel
private JPanel _plotPanel;
// The mapping from Ptolemy actors to Diva graph nodes
private HashMap _nodeMap = new HashMap();
// The Diva JGraph where we display stuff
private JGraph _jgraph;
// The Diva panel where we display stuff
private JPanel _divaPanel;
// The Diva graph
private MutableGraphModel _graph;
///////////////////////////////////////////////////////////////////
//// LocalZenoGraphController
public class LocalZenoGraphController extends BasicGraphController {
private SelectionDragger _selectionDragger;
/**
* Create a new basic controller with default
* node and edge interactors.
*/
public LocalZenoGraphController() {
// The interactors attached to nodes and edges
setNodeController(new BasicNodeController(this));
setEdgeController(new BasicEdgeController(this));
getNodeController().setNodeRenderer(new ThreadRenderer(this));
getEdgeController().setEdgeRenderer(new LocalEdgeRenderer());
}
/**
* Initialize all interaction on the graph pane. This method
* is called by the setGraphPane() method of the superclass.
* This initialization cannot be done in the constructor because
* the controller does not yet have a reference to its pane
* at that time.
*/
protected void initializeInteraction() {
GraphPane pane = getGraphPane();
// Create and set up the selection dragger
_selectionDragger = new SelectionDragger(pane);
_selectionDragger.addSelectionModel(getSelectionModel());
}
}
///////////////////////////////////////////////////////////////////
//// LocalEdgeRenderer
/**
* LocalEdgeRenderer draws arrowheads on both ends of the connector
*/
public static class LocalEdgeRenderer implements EdgeRenderer {
// FindBugs suggests making this class static so as to decrease
// the size of instances and avoid dangling references.
/**
* Render the edge
*/
public Connector render(Object edge, Site tailSite, Site headSite) {
StraightConnector c = new StraightConnector(tailSite, headSite);
// Create an arrow at the head
Arrowhead headArrow = new Arrowhead(headSite.getX(), headSite
.getY(), headSite.getNormal());
c.setHeadEnd(headArrow);
c.setUserObject(edge);
return c;
}
}
///////////////////////////////////////////////////////////////////
//// StateListener
/**
* StateListener is an inner class that listens to state
* events on the Ptolemy kernel and changes the color of
* the nodes appropriately.
*/
public class StateListener implements DebugListener {
// The Pane
GraphPane _graphPane;
/** Create a listener on the given graph pane
*/
public StateListener(GraphPane pane) {
_graphPane = pane;
}
/** Ignore messages.
*/
public void message(String message) {
}
/** React to the given event.
*/
public void event(DebugEvent debugEvent) {
// only trap ExecEvents.
if (!(debugEvent instanceof ExecEvent)) {
return;
}
ExecEvent event = (ExecEvent) debugEvent;
final ExecEvent.ExecEventType state = event.getState();
NamedObj actor = event.getSource();
// Get the corresponding graph node and its figure
Object node = _nodeMap.get(actor);
LabelWrapper wrapper = (LabelWrapper) _graphPane
.getGraphController().getFigure(node);
final BasicFigure figure = (BasicFigure) wrapper.getChild();
// Color the graph
try {
SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
if (state == ExecEvent.WAITING) {
figure.setFillPaint(Color.yellow);
} else if (state == ExecEvent.ACCESSING) {
figure.setFillPaint(Color.green);
} else if (state == ExecEvent.BLOCKED) {
figure.setFillPaint(Color.red);
} else {
System.err.println("Unknown state: " + state);
}
}
});
} catch (Exception e) {
e.printStackTrace();
}
}
}
///////////////////////////////////////////////////////////////////
//// ThreadRenderer
/**
* ThreadRenderer draws the nodes to represent running threads.
*/
public static class ThreadRenderer implements NodeRenderer {
// FindBugs suggests making this class static so as to decrease
// the size of instances and avoid dangling references.
/** The rectangle size
*/
private double _size = 40;
/** The graph controller
*/
private GraphController _controller;
public ThreadRenderer(GraphController controller) {
_controller = controller;
}
/**
* Return the rendered visual representation of this node.
*/
public Figure render(Object n) {
ComponentEntity actor = (ComponentEntity) _controller
.getGraphModel().getSemanticObject(n);
boolean isEllipse = actor instanceof ListenWire
|| actor instanceof ListenFork
|| actor instanceof ListenClock
|| actor instanceof ListenSink
|| actor instanceof ListenFeedBackDelay;
BasicFigure f;
if (isEllipse) {
f = new BasicEllipse(0, 0, _size, _size);
f.setFillPaint(Color.blue);
} else {
f = new BasicRectangle(0, 0, _size, _size);
f.setFillPaint(Color.pink);
}
String label = actor.getName();
LabelWrapper w = new LabelWrapper(f, label);
w.setAnchor(SwingConstants.SOUTH);
w.getLabel().setAnchor(SwingConstants.NORTH);
return w;
}
}
}