1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * 
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   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:
  13  * 
  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.
  23  * 
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
  25  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  26  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
  27  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  30  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
  31  * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33 package org.openjdk.jmc.flightrecorder.rules.jdk.general;
  34 
  35 import java.util.Collection;
  36 import java.util.Collections;
  37 import java.util.concurrent.Callable;
  38 import java.util.concurrent.FutureTask;
  39 import java.util.concurrent.RunnableFuture;
  40 
  41 import org.openjdk.jmc.common.item.IItemCollection;
  42 import org.openjdk.jmc.common.util.IPreferenceValueProvider;
  43 import org.openjdk.jmc.common.util.TypedPreference;
  44 import org.openjdk.jmc.flightrecorder.jdk.JdkAggregators;
  45 import org.openjdk.jmc.flightrecorder.jdk.JdkTypeIDs;
  46 import org.openjdk.jmc.flightrecorder.rules.IRule;
  47 import org.openjdk.jmc.flightrecorder.rules.Result;
  48 import org.openjdk.jmc.flightrecorder.rules.jdk.messages.internal.Messages;
  49 import org.openjdk.jmc.flightrecorder.rules.util.JfrRuleTopics;
  50 import org.openjdk.jmc.flightrecorder.rules.util.RulesToolkit;
  51 import org.openjdk.jmc.flightrecorder.rules.util.RulesToolkit.EventAvailability;
  52 
  53 public class DiscouragedVmOptionsRule implements IRule {
  54         private static final String DISCOURAGED_VM_OPTIONS_RESULT_ID = "DiscouragedVmOptions"; //$NON-NLS-1$
  55 
  56         private Result getResult(IItemCollection items, IPreferenceValueProvider valueProvider) {
  57                 EventAvailability eventAvailability = RulesToolkit.getEventAvailability(items, JdkTypeIDs.BOOLEAN_FLAG);
  58                 if (eventAvailability == EventAvailability.UNAVAILABLE || eventAvailability == EventAvailability.DISABLED) {
  59                         return RulesToolkit.getEventAvailabilityResult(this, items, eventAvailability, JdkTypeIDs.BOOLEAN_FLAG);
  60                 }
  61 
  62                 Boolean unlockExperimentalVMOptions = items.getAggregate(JdkAggregators.UNLOCK_EXPERIMENTAL_VM_OPTIONS);
  63                 Boolean ignoreUnrecognizedVMOptions = items.getAggregate(JdkAggregators.IGNORE_UNRECOGNIZED_VM_OPTIONS);
  64 
  65                 if (unlockExperimentalVMOptions != null && ignoreUnrecognizedVMOptions != null && unlockExperimentalVMOptions
  66                                 && ignoreUnrecognizedVMOptions) {
  67                         String shortMessage = Messages.getString(Messages.DiscouragedVmOptionsRule_BOTH_EXPERIMENTAL_AND_IGNORE);
  68                         String longMessage = shortMessage + " " //$NON-NLS-1$
  69                                         + Messages.getString(Messages.UnlockExperimentalVMOptionsRuleFactory_TEXT_INFO_LONG) + " " //$NON-NLS-1$
  70                                         + Messages.getString(Messages.IgnoreUnrecognizedVMOptionsRuleFactory_TEXT_INFO_LONG);
  71                         return new Result(this, 50, shortMessage, longMessage);
  72                 } else if (ignoreUnrecognizedVMOptions != null && ignoreUnrecognizedVMOptions) {
  73                         return new Result(this, 50, Messages.getString(Messages.IgnoreUnrecognizedVMOptionsRuleFactory_TEXT_INFO),
  74                                         Messages.getString(Messages.IgnoreUnrecognizedVMOptionsRuleFactory_TEXT_INFO_LONG));
  75                 } else if (unlockExperimentalVMOptions != null && unlockExperimentalVMOptions) {
  76                         return new Result(this, 50, Messages.getString(Messages.UnlockExperimentalVMOptionsRuleFactory_TEXT_INFO),
  77                                         Messages.getString(Messages.UnlockExperimentalVMOptionsRuleFactory_TEXT_INFO_LONG));
  78                 } else {
  79                         return new Result(this, 0, Messages.getString(Messages.DiscouragedVmOptionsRule_TEXT_OK));
  80                 }
  81         }
  82 
  83         @Override
  84         public RunnableFuture<Result> evaluate(final IItemCollection items, final IPreferenceValueProvider valueProvider) {
  85                 FutureTask<Result> evaluationTask = new FutureTask<>(new Callable<Result>() {
  86                         @Override
  87                         public Result call() throws Exception {
  88                                 return getResult(items, valueProvider);
  89                         }
  90                 });
  91                 return evaluationTask;
  92         }
  93 
  94         @Override
  95         public Collection<TypedPreference<?>> getConfigurationAttributes() {
  96                 return Collections.emptyList();
  97         }
  98 
  99         @Override
 100         public String getId() {
 101                 return DISCOURAGED_VM_OPTIONS_RESULT_ID;
 102         }
 103 
 104         @Override
 105         public String getName() {
 106                 return Messages.getString(Messages.DiscouragedVmOptionsRule_RULE_NAME);
 107         }
 108 
 109         @Override
 110         public String getTopic() {
 111                 return JfrRuleTopics.JVM_INFORMATION_TOPIC;
 112         }
 113 }