--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/visualizer/Filter/src/com/sun/hotspot/igv/filter/RemoveInputsFilter.java	Tue Feb 07 22:41:09 2012 +0100
@@ -0,0 +1,140 @@
+/*
+ * 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.filter;
+
+import com.sun.hotspot.igv.graph.*;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ *
+ * @author Thomas Wuerthinger
+ */
+public class RemoveInputsFilter extends AbstractFilter {
+
+    private List<RemoveInputsRule> rules;
+    private String name;
+
+    public RemoveInputsFilter(String name) {
+        this.name = name;
+        rules = new ArrayList<>();
+    }
+
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public void apply(Diagram diagram) {
+
+        for (RemoveInputsRule r : rules) {
+
+            List<Figure> list = r.getSelector().selected(diagram);
+            for (Figure f : list) {
+                int z = 0;
+                List<InputSlot> last = new ArrayList<>();
+                for (InputSlot is : f.getInputSlots()) {
+                    if (z >= r.getStartingIndex() && z <= r.getEndIndex() && is.getConnections().size() > 0) {
+                        StringBuilder sb = new StringBuilder();
+                        List<Connection> conns = is.getConnections();
+                        for (int i = 0; i < conns.size(); i++) {
+                            Connection c = conns.get(i);
+                            OutputSlot os = c.getOutputSlot();
+                            Figure pred = os.getFigure();
+                            if (i != 0) {
+                                sb.append("<BR>");
+                            }
+                            sb.append(pred.getLines()[0]);
+                        }
+                        is.removeAllConnections();
+                        is.setShortName("X");
+                        is.setText(sb.toString());
+                        last.add(is);
+                    } else {
+                        last.clear();
+                    }
+                    z++;
+                }
+
+                if (last.size() > 3) {
+                    InputSlot first = last.get(0);
+                    first.setShortName("XX");
+
+                    StringBuilder sb = new StringBuilder();
+                    for (int i = 0; i < last.size(); i++) {
+                        InputSlot is2 = last.get(i);
+                        if (i != 0) {
+                            sb.append("<BR>");
+                        }
+                        sb.append(is2.getText());
+                    }
+
+                    first.setText(sb.toString());
+
+                    for (int i = 1; i < last.size(); i++) {
+                        f.removeSlot(last.get(i));
+                    }
+                }
+            }
+        }
+    }
+
+    public void addRule(RemoveInputsRule rule) {
+        rules.add(rule);
+    }
+
+    public static class RemoveInputsRule {
+
+        private Selector selector;
+        private int startingIndex;
+        private int endIndex;
+
+        public RemoveInputsRule(Selector selector) {
+            this(selector, 0);
+        }
+
+        public RemoveInputsRule(Selector selector, int startIndex) {
+            this(selector, startIndex, Integer.MAX_VALUE);
+        }
+
+        public RemoveInputsRule(Selector selector, int startIndex, int endIndex) {
+            this.startingIndex = startIndex;
+            this.endIndex = endIndex;
+            this.selector = selector;
+        }
+
+        public int getStartingIndex() {
+            return startingIndex;
+        }
+
+        public int getEndIndex() {
+            return endIndex;
+        }
+
+        public Selector getSelector() {
+            return selector;
+        }
+    }
+}