1 /*
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   3  * 
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   6  * The contents of this file are subject to the terms of either the Universal Permissive License
   7  * v 1.0 as shown at http://oss.oracle.com/licenses/upl
   8  *
   9  * or the following license:
  10  *
  11  * Redistribution and use in source and binary forms, with or without modification, are permitted
  12  * provided that the following conditions are met:
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  14  * 1. Redistributions of source code must retain the above copyright notice, this list of conditions
  15  * and the following disclaimer.
  16  * 
  17  * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
  18  * conditions and the following disclaimer in the documentation and/or other materials provided with
  19  * the distribution.
  20  * 
  21  * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
  22  * endorse or promote products derived from this software without specific prior written permission.
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  25  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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  32  */
  33 package org.openjdk.jmc.flightrecorder.rules.jdk.general;
  34 
  35 import java.text.MessageFormat;
  36 import java.util.Collection;
  37 import java.util.Collections;
  38 import java.util.concurrent.Callable;
  39 import java.util.concurrent.FutureTask;
  40 import java.util.concurrent.RunnableFuture;
  41 
  42 import org.owasp.encoder.Encode;
  43 
  44 import org.openjdk.jmc.common.item.IItemCollection;
  45 import org.openjdk.jmc.common.util.IPreferenceValueProvider;
  46 import org.openjdk.jmc.common.util.TypedPreference;
  47 import org.openjdk.jmc.flightrecorder.jdk.JdkQueries;
  48 import org.openjdk.jmc.flightrecorder.jdk.JdkTypeIDs;
  49 import org.openjdk.jmc.flightrecorder.rules.IRule;
  50 import org.openjdk.jmc.flightrecorder.rules.Result;
  51 import org.openjdk.jmc.flightrecorder.rules.jdk.messages.internal.Messages;
  52 import org.openjdk.jmc.flightrecorder.rules.util.JfrRuleTopics;
  53 import org.openjdk.jmc.flightrecorder.rules.util.RulesToolkit;
  54 import org.openjdk.jmc.flightrecorder.rules.util.RulesToolkit.EventAvailability;
  55 
  56 public class RecordingSettingsRule implements IRule {
  57         private static final String RECORDING_SETTINGS_RESULT_ID = "OverAggressiveRecordingSetting"; //$NON-NLS-1$
  58 
  59         private Result getResult(IItemCollection items, IPreferenceValueProvider valueProvider) {
  60                 EventAvailability eventAvailability = RulesToolkit.getEventAvailability(items, JdkTypeIDs.SYSTEM_PROPERTIES);
  61                 if (eventAvailability == EventAvailability.UNKNOWN || eventAvailability == EventAvailability.DISABLED) {
  62                         return RulesToolkit.getEventAvailabilityResult(this, items, eventAvailability,
  63                                         JdkTypeIDs.SYSTEM_PROPERTIES);
  64                 }
  65 
  66                 String names = RulesToolkit.getTypesWithZeroThreshold(items, JdkTypeIDs.THREAD_PARK, JdkTypeIDs.MONITOR_ENTER);
  67                 if (names != null && names.length() > 0) {
  68                         String eventsWithoutThreshold = names.trim();
  69                         return new Result(this, 50,
  70                                         MessageFormat.format(
  71                                                         Messages.getString(Messages.OverAggressiveRecordingSettingRuleFactory_TEXT_INFO),
  72                                                         Encode.forHtml(eventsWithoutThreshold)),
  73                                         Messages.getString(Messages.OverAggressiveRecordingSettingRuleFactory_TEXT_INFO_LONG),
  74                                         JdkQueries.RECORDING_SETTINGS);
  75                 }
  76                 return new Result(this, 0, Messages.getString(Messages.OverAggressiveRecordingSettingRuleFactory_RULE_TEXT_OK));
  77         }
  78 
  79         @Override
  80         public RunnableFuture<Result> evaluate(final IItemCollection items, final IPreferenceValueProvider valueProvider) {
  81                 FutureTask<Result> evaluationTask = new FutureTask<>(new Callable<Result>() {
  82                         @Override
  83                         public Result call() throws Exception {
  84                                 return getResult(items, valueProvider);
  85                         }
  86                 });
  87                 return evaluationTask;
  88         }
  89 
  90         @Override
  91         public Collection<TypedPreference<?>> getConfigurationAttributes() {
  92                 return Collections.emptyList();
  93         }
  94 
  95         @Override
  96         public String getId() {
  97                 return RECORDING_SETTINGS_RESULT_ID;
  98         }
  99 
 100         @Override
 101         public String getName() {
 102                 return Messages.getString(Messages.OverAggressiveRecordingSettingRuleFactory_RULE_NAME);
 103         }
 104 
 105         @Override
 106         public String getTopic() {
 107                 return JfrRuleTopics.RECORDING_TOPIC;
 108         }
 109 }