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annotate graal/GraalCompiler/src/com/sun/c1x/debug/IdealGraphPrinterObserver.java @ 2691:4149feada801

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GraphvizPrinterObserver: close output stream also in case of exception
author Peter Hofer <peter.hofer@jku.at>
date Wed, 18 May 2011 11:27:10 +0200
parents ed36daed4c43
children 79590d6b4a7c
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1 /*
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2 * Copyright (c) 2011, 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.sun.c1x.debug;
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24
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25 import java.io.*;
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27 import com.oracle.graal.graph.*;
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28 import com.sun.c1x.*;
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29 import com.sun.c1x.observer.*;
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30 import com.sun.c1x.value.*;
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31
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32 /**
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33 * Observes compilation events and uses {@link IdealGraphPrinter} to generate a graph representation that can be
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34 * inspected with the <a href="http://kenai.com/projects/igv">Ideal Graph Visualizer</a>.
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35 *
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36 * @author Peter Hofer
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37 */
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38 public class IdealGraphPrinterObserver implements CompilationObserver {
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39
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40 private IdealGraphPrinter printer;
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41 private OutputStream stream;
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42
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43 @Override
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44 public void compilationStarted(CompilationEvent event) {
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45 assert (stream == null && printer == null);
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46
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47 if (!TTY.isSuppressed()) {
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48 String name = event.getMethod().holder().name();
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49 name = name.substring(1, name.length() - 1).replace('/', '.');
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50 name = name + "." + event.getMethod().name();
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51 String filename = name + ".igv.xml";
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52 try {
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53 stream = new FileOutputStream(filename);
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54 printer = new IdealGraphPrinter(stream);
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55
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56 if (C1XOptions.OmitDOTFrameStates) {
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57 printer.addOmittedClass(FrameState.class);
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58 }
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59
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60 printer.begin(name, name, -1);
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61 } catch (IOException e) {
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62 e.printStackTrace();
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63 }
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64 }
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65 }
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66
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67 @Override
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68 public void compilationEvent(CompilationEvent event) {
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69 if (printer != null && event.getStartBlock() != null) {
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70 Graph graph = event.getStartBlock().graph();
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71 printer.print(graph, event.getLabel(), true);
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72 }
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73 }
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74
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75 @Override
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76 public void compilationFinished(CompilationEvent event) {
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77 if (printer != null) {
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78 try {
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79 printer.end();
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80 stream.close();
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81 } catch (IOException e) {
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82 e.printStackTrace();
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83 } finally {
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84 printer = null;
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85 stream = null;
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86 }
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87 }
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88 }
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89
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90 }