RemoveFilter.java revision 1472:c18cbe5936b8 
1/*
2 * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24package com.sun.hotspot.igv.filter;
25
26import com.sun.hotspot.igv.graph.Diagram;
27import com.sun.hotspot.igv.graph.Figure;
28import com.sun.hotspot.igv.graph.InputSlot;
29import com.sun.hotspot.igv.graph.Selector;
30import com.sun.hotspot.igv.data.Properties;
31import java.util.ArrayList;
32import java.util.HashSet;
33import java.util.List;
34import java.util.Set;
35
36/**
37 *
38 * @author Thomas Wuerthinger
39 */
40public class RemoveFilter extends AbstractFilter {
41
42    private List<RemoveRule> rules;
43    private String name;
44
45    public RemoveFilter(String name) {
46        this.name = name;
47        rules = new ArrayList<RemoveRule>();
48    }
49
50    public String getName() {
51        return name;
52    }
53
54    public void apply(Diagram diagram) {
55
56        for (RemoveRule r : rules) {
57
58            List<Figure> list = r.getSelector().selected(diagram);
59            Set<Figure> figuresToRemove = new HashSet<Figure>();
60
61            List<Figure> protectedFigures = null;
62            if (r.getRemoveAllWithoutPredecessor()) {
63                protectedFigures = diagram.getRootFigures();
64            }
65
66            for (Figure f : list) {
67                if (r.getRemoveOnlyInputs()) {
68                    List<InputSlot> inputSlots = new ArrayList<InputSlot>();
69                    for (InputSlot is : f.getInputSlots()) {
70                        inputSlots.add(is);
71                    }
72                    for (InputSlot is : inputSlots) {
73                        f.removeSlot(is);
74                    }
75
76                    f.createInputSlot();
77                } else {
78                    figuresToRemove.add(f);
79                }
80            }
81
82            if (r.getRemoveAllWithoutPredecessor()) {
83                boolean progress = true;
84                while (progress) {
85                    List<Figure> rootFigures = diagram.getRootFigures();
86                    progress = false;
87                    for (Figure f : rootFigures) {
88                        if (!protectedFigures.contains(f)) {
89                            figuresToRemove.add(f);
90                            progress = true;
91                        }
92                    }
93                }
94            }
95
96            diagram.removeAllFigures(figuresToRemove);
97        }
98    }
99
100    public void addRule(RemoveRule rule) {
101        rules.add(rule);
102    }
103
104    public static class RemoveRule {
105
106        private Selector selector;
107        private boolean removeAllWithoutPredecessor;
108        private boolean removeOnlyInputs;
109
110        public RemoveRule(Selector selector, boolean b) {
111            this(selector, b, false);
112        }
113
114        public RemoveRule(Selector selector, boolean removeAllWithoutPredecessor, boolean removeOnlyInputs) {
115            this.selector = selector;
116            this.removeOnlyInputs = removeOnlyInputs;
117            this.removeAllWithoutPredecessor = removeAllWithoutPredecessor;
118        }
119
120        public Selector getSelector() {
121            return selector;
122        }
123
124        public boolean getRemoveOnlyInputs() {
125            return removeOnlyInputs;
126        }
127
128        public boolean getRemoveAllWithoutPredecessor() {
129            return removeAllWithoutPredecessor;
130        }
131    }
132}
133