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annotate truffle/com.oracle.truffle.object/src/com/oracle/truffle/object/Debug.java @ 22356:364bab1763c9

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add option for dumping shapes to a DOT file
author Andreas Woess <andreas.woess@oracle.com>
date Tue, 10 Nov 2015 19:59:29 +0100
parents dc83cc1f94f2
children 9c1d40221bf9
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1 /*
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2 * Copyright (c) 2014, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.truffle.object;
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24
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25 import java.io.File;
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26 import java.io.FileNotFoundException;
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27 import java.io.PrintWriter;
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28 import java.io.UnsupportedEncodingException;
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29 import java.nio.file.Paths;
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30 import java.util.Collection;
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31 import java.util.concurrent.ConcurrentLinkedQueue;
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32
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33 import com.oracle.truffle.object.debug.GraphvizShapeVisitor;
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34 import com.oracle.truffle.object.debug.JSONShapeVisitor;
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35
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36 class Debug {
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37 private static Collection<ShapeImpl> allShapes;
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38
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39 static void registerShape(ShapeImpl newShape) {
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40 allShapes.add(newShape);
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41 }
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42
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43 static {
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44 if (ObjectStorageOptions.DumpShapes) {
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45 allShapes = new ConcurrentLinkedQueue<>();
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46 }
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47
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48 if (ObjectStorageOptions.DumpShapes) {
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49 Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
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50 public void run() {
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51 try {
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52 if (ObjectStorageOptions.DumpShapesDOT) {
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53 dumpDOT();
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54 }
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55 if (ObjectStorageOptions.DumpShapesJSON) {
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56 dumpJSON();
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57 }
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58 } catch (FileNotFoundException | UnsupportedEncodingException e) {
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59 throw new RuntimeException(e);
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60 }
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61 }
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62
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63 private void dumpDOT() throws FileNotFoundException, UnsupportedEncodingException {
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64 try (PrintWriter out = new PrintWriter(getOutputFile("dot"), "UTF-8")) {
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65 GraphvizShapeVisitor visitor = new GraphvizShapeVisitor();
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66 for (ShapeImpl shape : allShapes) {
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67 shape.accept(visitor);
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68 }
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69 out.println(visitor);
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70 }
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71 }
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72
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73 private void dumpJSON() throws FileNotFoundException, UnsupportedEncodingException {
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74 try (PrintWriter out = new PrintWriter(getOutputFile("json"), "UTF-8")) {
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75 out.println("{\"shapes\": [");
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76 boolean first = true;
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77 for (ShapeImpl shape : allShapes) {
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78 if (!first) {
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79 out.println(",");
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80 }
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81 first = false;
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82 out.print(shape.accept(new JSONShapeVisitor()));
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83 }
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84 if (!first) {
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85 out.println();
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86 }
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87 out.println("]}");
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88 }
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89 }
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90
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91 private File getOutputFile(String extension) {
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92 return Paths.get(ObjectStorageOptions.DumpShapesPath, "shapes." + extension).toFile();
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93 }
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94 }));
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95 }
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96 }
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97 }