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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SIMPLE_CONDITION_TRACKER_H
#define SIMPLE_CONDITION_TRACKER_H
#include <gtest/gtest_prod.h>
#include "ConditionTracker.h"
#include "config/ConfigKey.h"
#include "frameworks/base/cmds/statsd/src/statsd_config.pb.h"
#include "stats_util.h"
namespace android {
namespace os {
namespace statsd {
class SimpleConditionTracker : public virtual ConditionTracker {
public:
SimpleConditionTracker(const ConfigKey& key, const int64_t& id, const int index,
const SimplePredicate& simplePredicate,
const std::unordered_map<int64_t, int>& trackerNameIndexMap);
~SimpleConditionTracker();
bool init(const std::vector<Predicate>& allConditionConfig,
const std::vector<sp<ConditionTracker>>& allConditionTrackers,
const std::unordered_map<int64_t, int>& conditionIdIndexMap,
std::vector<bool>& stack) override;
void evaluateCondition(const LogEvent& event,
const std::vector<MatchingState>& eventMatcherValues,
const std::vector<sp<ConditionTracker>>& mAllConditions,
std::vector<ConditionState>& conditionCache,
std::vector<bool>& changedCache) override;
void isConditionMet(const ConditionKey& conditionParameters,
const std::vector<sp<ConditionTracker>>& allConditions,
const vector<Matcher>& dimensionFields,
const bool isSubOutputDimensionFields,
const bool isPartialLink,
std::vector<ConditionState>& conditionCache,
std::unordered_set<HashableDimensionKey>& dimensionsKeySet) const override;
ConditionState getMetConditionDimension(
const std::vector<sp<ConditionTracker>>& allConditions,
const vector<Matcher>& dimensionFields,
const bool isSubOutputDimensionFields,
std::unordered_set<HashableDimensionKey>& dimensionsKeySet) const override;
virtual const std::set<HashableDimensionKey>* getChangedToTrueDimensions(
const std::vector<sp<ConditionTracker>>& allConditions) const {
if (mSliced) {
return &mLastChangedToTrueDimensions;
} else {
return nullptr;
}
}
virtual const std::set<HashableDimensionKey>* getChangedToFalseDimensions(
const std::vector<sp<ConditionTracker>>& allConditions) const {
if (mSliced) {
return &mLastChangedToFalseDimensions;
} else {
return nullptr;
}
}
void getTrueSlicedDimensions(
const std::vector<sp<ConditionTracker>>& allConditions,
std::set<HashableDimensionKey>* dimensions) const override {
for (const auto& itr : mSlicedConditionState) {
if (itr.second > 0) {
dimensions->insert(itr.first);
}
}
}
bool IsChangedDimensionTrackable() const override { return true; }
bool IsSimpleCondition() const override { return true; }
bool equalOutputDimensions(
const std::vector<sp<ConditionTracker>>& allConditions,
const vector<Matcher>& dimensions) const override {
return equalDimensions(mOutputDimensions, dimensions);
}
private:
const ConfigKey mConfigKey;
// The index of the LogEventMatcher which defines the start.
int mStartLogMatcherIndex;
// The index of the LogEventMatcher which defines the end.
int mStopLogMatcherIndex;
// if the start end needs to be nested.
bool mCountNesting;
// The index of the LogEventMatcher which defines the stop all.
int mStopAllLogMatcherIndex;
ConditionState mInitialValue;
std::vector<Matcher> mOutputDimensions;
bool mContainANYPositionInInternalDimensions;
std::set<HashableDimensionKey> mLastChangedToTrueDimensions;
std::set<HashableDimensionKey> mLastChangedToFalseDimensions;
int mDimensionTag;
std::map<HashableDimensionKey, int> mSlicedConditionState;
void handleStopAll(std::vector<ConditionState>& conditionCache,
std::vector<bool>& changedCache);
void handleConditionEvent(const HashableDimensionKey& outputKey, bool matchStart,
ConditionState* conditionCache, bool* changedCache);
bool hitGuardRail(const HashableDimensionKey& newKey);
void dumpState();
FRIEND_TEST(SimpleConditionTrackerTest, TestSlicedCondition);
FRIEND_TEST(SimpleConditionTrackerTest, TestSlicedWithNoOutputDim);
FRIEND_TEST(SimpleConditionTrackerTest, TestStopAll);
};
} // namespace statsd
} // namespace os
} // namespace android
#endif // SIMPLE_CONDITION_TRACKER_H
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