--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/visualizer/Graph/src/com/sun/hotspot/igv/graph/Connection.java	Tue Feb 07 22:41:09 2012 +0100
@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+package com.sun.hotspot.igv.graph;
+
+import com.sun.hotspot.igv.data.Source;
+import com.sun.hotspot.igv.layout.Link;
+import com.sun.hotspot.igv.layout.Port;
+import java.awt.Color;
+import java.awt.Point;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 
+ * @author Thomas Wuerthinger
+ */
+public class Connection implements Source.Provider, Link {
+
+    @Override
+    public boolean isVIP() {
+        return style == ConnectionStyle.BOLD;
+    }
+
+    public enum ConnectionStyle {
+
+        NORMAL,
+        DASHED,
+        BOLD
+    }
+    private InputSlot inputSlot;
+    private OutputSlot outputSlot;
+    private Source source;
+    private Color color;
+    private ConnectionStyle style;
+    private List<Point> controlPoints;
+    private String label;
+
+    protected Connection(InputSlot inputSlot, OutputSlot outputSlot, String label) {
+        this.inputSlot = inputSlot;
+        this.outputSlot = outputSlot;
+        this.label = label;
+        this.inputSlot.connections.add(this);
+        this.outputSlot.connections.add(this);
+        controlPoints = new ArrayList<>();
+        Figure sourceFigure = this.outputSlot.getFigure();
+        Figure destFigure = this.inputSlot.getFigure();
+        sourceFigure.addSuccessor(destFigure);
+        destFigure.addPredecessor(sourceFigure);
+        source = new Source();
+
+        this.color = Color.BLACK;
+        this.style = ConnectionStyle.NORMAL;
+    }
+
+    public InputSlot getInputSlot() {
+        return inputSlot;
+    }
+
+    public OutputSlot getOutputSlot() {
+        return outputSlot;
+    }
+
+    public Color getColor() {
+        return color;
+    }
+
+    public ConnectionStyle getStyle() {
+        return style;
+    }
+
+    public void setColor(Color c) {
+        color = c;
+    }
+
+    public void setStyle(ConnectionStyle s) {
+        style = s;
+    }
+
+    @Override
+    public Source getSource() {
+        return source;
+    }
+
+    public String getLabel() {
+        return label;
+    }
+
+    public void remove() {
+        inputSlot.getFigure().removePredecessor(outputSlot.getFigure());
+        inputSlot.connections.remove(this);
+        outputSlot.getFigure().removeSuccessor(inputSlot.getFigure());
+        outputSlot.connections.remove(this);
+    }
+    
+    public String getToolTipText() {
+        StringBuilder builder = new StringBuilder();
+        if (label != null) {
+            builder.append(label).append(": from ");
+        } else {
+            builder.append("From ");
+        }
+        builder.append(getOutputSlot().getFigure());
+        builder.append(" to ");
+        builder.append(getInputSlot().getFigure());
+        return builder.toString();
+    }
+
+    @Override
+    public String toString() {
+        return "Connection('" + label + "', " + getFrom().getVertex() + " to " + getTo().getVertex() + ")";
+    }
+
+    @Override
+    public Port getFrom() {
+        return outputSlot;
+    }
+
+    @Override
+    public Port getTo() {
+        return inputSlot;
+    }
+
+    @Override
+    public List<Point> getControlPoints() {
+        return controlPoints;
+    }
+
+    @Override
+    public void setControlPoints(List<Point> list) {
+        controlPoints = list;
+    }
+}
+