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1 /* |
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2 * Copyright (c) 2018, 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. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package jdk.jfr.internal.tool; |
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27 |
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28 import java.io.FileNotFoundException; |
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29 import java.io.IOException; |
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30 import java.io.PrintWriter; |
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31 import java.nio.file.Path; |
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32 import java.util.ArrayList; |
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33 import java.util.HashMap; |
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34 import java.util.List; |
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35 import java.util.Map; |
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36 import java.util.function.Predicate; |
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37 |
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38 import jdk.jfr.EventType; |
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39 import jdk.jfr.Timespan; |
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40 import jdk.jfr.Timestamp; |
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41 import jdk.jfr.ValueDescriptor; |
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42 import jdk.jfr.consumer.RecordedEvent; |
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43 import jdk.jfr.consumer.RecordedObject; |
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44 import jdk.jfr.consumer.RecordingFile; |
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45 import jdk.jfr.internal.consumer.RecordingInternals; |
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46 |
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47 abstract class EventPrintWriter extends StructuredWriter { |
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48 |
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49 enum ValueType { |
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50 TIMESPAN, TIMESTAMP, OTHER |
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51 } |
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52 |
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53 protected static final String STACK_TRACE_FIELD = "stackTrace"; |
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54 protected static final String EVENT_THREAD_FIELD = "eventThread"; |
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55 |
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56 private Predicate<EventType> eventFilter = x -> true; |
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57 private int stackDepth; |
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58 |
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59 // cach that will speed up annotation lookup |
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60 private Map<ValueDescriptor, ValueType> typeOfValues = new HashMap<>(); |
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61 |
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62 EventPrintWriter(PrintWriter p) { |
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63 super(p); |
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64 } |
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65 |
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66 abstract protected void print(List<RecordedEvent> events); |
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67 |
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68 void print(Path source) throws FileNotFoundException, IOException { |
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69 List<RecordedEvent> events = new ArrayList<>(500_000); |
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70 printBegin(); |
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71 try (RecordingFile file = new RecordingFile(source)) { |
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72 while (file.hasMoreEvents()) { |
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73 RecordedEvent event = file.readEvent(); |
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74 if (acceptEvent(event)) { |
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75 events.add(event); |
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76 } |
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77 if (RecordingInternals.INSTANCE.isLastEventInChunk(file)) { |
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78 RecordingInternals.INSTANCE.sort(events); |
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79 print(events); |
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80 events.clear(); |
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81 } |
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82 } |
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83 } |
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84 printEnd(); |
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85 flush(true); |
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86 } |
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87 |
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88 protected void printEnd() { |
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89 } |
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90 |
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91 protected void printBegin() { |
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92 } |
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93 |
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94 public final void setEventFilter(Predicate<EventType> eventFilter) { |
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95 this.eventFilter = eventFilter; |
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96 } |
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97 |
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98 protected final boolean acceptEvent(RecordedEvent event) { |
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99 return eventFilter.test(event.getEventType()); |
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100 } |
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101 |
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102 protected final int getStackDepth() { |
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103 return stackDepth; |
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104 } |
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105 |
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106 protected final boolean isLateField(String name) { |
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107 return name.equals(EVENT_THREAD_FIELD) || name.equals(STACK_TRACE_FIELD); |
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108 } |
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109 |
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110 public void setStackDepth(int stackDepth) { |
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111 this.stackDepth = stackDepth; |
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112 } |
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113 |
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114 protected Object getValue(RecordedObject object, ValueDescriptor v) { |
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115 ValueType valueType = typeOfValues.get(v); |
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116 if (valueType == null) { |
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117 valueType = determineValueType(v); |
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118 typeOfValues.put(v, valueType); |
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119 } |
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120 switch (valueType) { |
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121 case TIMESPAN: |
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122 return object.getDuration(v.getName()); |
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123 case TIMESTAMP: |
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124 return RecordingInternals.INSTANCE.getOffsetDataTime(object, v.getName()); |
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125 default: |
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126 return object.getValue(v.getName()); |
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127 } |
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128 } |
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129 // It's expensive t check |
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130 private ValueType determineValueType(ValueDescriptor v) { |
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131 if (v.getAnnotation(Timespan.class) != null) { |
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132 return ValueType.TIMESPAN; |
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133 } |
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134 if (v.getAnnotation(Timestamp.class) != null) { |
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135 return ValueType.TIMESTAMP; |
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136 } |
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137 return ValueType.OTHER; |
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138 } |
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139 } |