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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/impl/ProbeManager.java @ 15779:8c34e2cc4add
Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Mon, 19 May 2014 17:14:36 -0700 |
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children | eedf6c293639 |
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15779
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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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1 /* |
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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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2 * Copyright (c) 2013, 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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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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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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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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6 * under the terms of the GNU General Public License version 2 only, as |
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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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7 * published by the Free Software Foundation. Oracle designates this |
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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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8 * particular file as subject to the "Classpath" exception as provided |
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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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9 * by Oracle in the LICENSE file that accompanied this code. |
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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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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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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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15 * accompanied this code). |
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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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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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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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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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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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23 * questions. |
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24 */ |
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25 package com.oracle.truffle.api.instrument.impl; |
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26 |
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27 import java.util.*; |
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28 |
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Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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29 import com.oracle.truffle.api.*; |
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30 import com.oracle.truffle.api.instrument.*; |
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31 import com.oracle.truffle.api.instrument.impl.InstrumentationNode.ProbeCallback; |
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32 import com.oracle.truffle.api.instrument.impl.InstrumentationNode.ProbeImpl; |
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33 import com.oracle.truffle.api.source.*; |
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34 |
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35 /** |
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36 * Factory and services for AST {@link Probe}s |
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37 */ |
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38 public final class ProbeManager { |
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39 |
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40 // TODO (mlvdv) use weak references. |
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41 /** |
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42 * Map: SourceSection ==> probe associated with that source section in an AST. |
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43 */ |
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44 private final Map<SourceSection, ProbeImpl> srcToProbe = new HashMap<>(); |
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45 |
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46 // TODO (mlvdv) use weak references. |
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47 /** |
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48 * Map: Source line ==> probes associated with source sections starting on the line. |
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49 */ |
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50 private final Map<SourceLineLocation, Collection<Probe>> lineToProbes = new HashMap<>(); |
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51 |
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52 private final List<ProbeListener> probeListeners = new ArrayList<>(); |
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53 |
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54 private final ProbeCallback probeCallback; |
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55 |
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56 /** |
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57 * When non-null, "enter" events with matching tags will trigger a callback. |
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58 */ |
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59 private PhylumTrap phylumTrap = null; |
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60 |
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61 public ProbeManager() { |
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62 this.probeCallback = new ProbeCallback() { |
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63 /** |
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64 * Receives (from the {@link Probe} implementation) and distributes notification that a |
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65 * {@link Probe} has acquired a new {@linkplain PhylumTag tag}. |
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66 */ |
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67 public void newTagAdded(ProbeImpl probe, PhylumTag tag) { |
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68 for (ProbeListener listener : probeListeners) { |
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69 listener.probeTaggedAs(probe, tag); |
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70 } |
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71 if (phylumTrap != null && tag == phylumTrap.getTag()) { |
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72 probe.setTrap(phylumTrap); |
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73 } |
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74 } |
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75 }; |
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76 } |
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77 |
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78 public void addProbeListener(ProbeListener listener) { |
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79 assert listener != null; |
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80 probeListeners.add(listener); |
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81 } |
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82 |
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83 public Probe getProbe(SourceSection sourceSection) { |
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84 assert sourceSection != null; |
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85 |
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86 ProbeImpl probe = srcToProbe.get(sourceSection); |
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87 |
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88 if (probe != null) { |
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89 return probe; |
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90 } |
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91 probe = InstrumentationNode.createProbe(sourceSection, probeCallback); |
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92 |
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93 // Register new probe by unique SourceSection |
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94 srcToProbe.put(sourceSection, probe); |
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95 |
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96 // Register new probe by source line, there may be more than one |
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97 // Create line location for map key |
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98 final SourceLineLocation lineLocation = new SourceLineLocation(sourceSection.getSource(), sourceSection.getStartLine()); |
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99 |
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100 Collection<Probe> probes = lineToProbes.get(lineLocation); |
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101 if (probes == null) { |
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102 probes = new ArrayList<>(2); |
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103 lineToProbes.put(lineLocation, probes); |
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104 } |
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105 probes.add(probe); |
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106 |
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107 for (ProbeListener listener : probeListeners) { |
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108 listener.newProbeInserted(sourceSection, probe); |
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109 } |
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110 |
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111 return probe; |
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112 } |
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113 |
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114 public Collection<Probe> findProbesTaggedAs(PhylumTag tag) { |
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115 final List<Probe> probes = new ArrayList<>(); |
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116 for (Probe probe : srcToProbe.values()) { |
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117 if (tag == null || probe.isTaggedAs(tag)) { |
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118 probes.add(probe); |
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119 } |
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120 } |
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121 return probes; |
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122 } |
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123 |
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124 public Collection<Probe> findProbesByLine(SourceLineLocation lineLocation) { |
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125 final Collection<Probe> probes = lineToProbes.get(lineLocation); |
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126 if (probes == null) { |
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127 return Collections.emptyList(); |
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128 } |
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129 return new ArrayList<>(probes); |
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130 } |
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131 |
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132 public void setPhylumTrap(PhylumTrap trap) { |
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133 assert trap != null; |
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134 if (this.phylumTrap != null) { |
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135 throw new IllegalStateException("trap already set"); |
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136 } |
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137 this.phylumTrap = trap; |
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138 |
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139 PhylumTag tag = trap.getTag(); |
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140 for (ProbeImpl probe : srcToProbe.values()) { |
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141 if (probe.isTaggedAs(tag)) { |
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142 probe.setTrap(trap); |
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143 } |
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144 } |
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145 } |
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146 |
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147 public void clearPhylumTrap() { |
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148 if (this.phylumTrap == null) { |
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149 throw new IllegalStateException("no trap set"); |
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150 } |
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151 for (ProbeImpl probe : srcToProbe.values()) { |
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152 if (probe.isTaggedAs(phylumTrap.getTag())) { |
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153 probe.setTrap(null); |
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154 } |
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155 } |
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156 phylumTrap = null; |
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157 } |
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158 |
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159 } |