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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.
*/
#define STATSD_DEBUG false // STOPSHIP if true
#include "Log.h"
#include "SimpleAtomMatchingTracker.h"
namespace android {
namespace os {
namespace statsd {
using std::unordered_map;
using std::vector;
SimpleAtomMatchingTracker::SimpleAtomMatchingTracker(const int64_t& id, const int index,
const uint64_t protoHash,
const SimpleAtomMatcher& matcher,
const sp<UidMap>& uidMap)
: AtomMatchingTracker(id, index, protoHash), mMatcher(matcher), mUidMap(uidMap) {
if (!matcher.has_atom_id()) {
mInitialized = false;
} else {
mAtomIds.insert(matcher.atom_id());
mInitialized = true;
}
}
SimpleAtomMatchingTracker::~SimpleAtomMatchingTracker() {
}
optional<InvalidConfigReason> SimpleAtomMatchingTracker::init(
const vector<AtomMatcher>& allAtomMatchers,
const vector<sp<AtomMatchingTracker>>& allAtomMatchingTrackers,
const unordered_map<int64_t, int>& matcherMap, vector<bool>& stack) {
// no need to do anything.
if (!mInitialized) {
return createInvalidConfigReasonWithMatcher(
INVALID_CONFIG_REASON_MATCHER_TRACKER_NOT_INITIALIZED, mId);
}
return nullopt;
}
optional<InvalidConfigReason> SimpleAtomMatchingTracker::onConfigUpdated(
const AtomMatcher& matcher, const int index,
const unordered_map<int64_t, int>& atomMatchingTrackerMap) {
mIndex = index;
// Do not need to update mMatcher since the matcher must be identical across the update.
if (!mInitialized) {
return createInvalidConfigReasonWithMatcher(
INVALID_CONFIG_REASON_MATCHER_TRACKER_NOT_INITIALIZED, mId);
}
return nullopt;
}
void SimpleAtomMatchingTracker::onLogEvent(
const LogEvent& event, const vector<sp<AtomMatchingTracker>>& allAtomMatchingTrackers,
vector<MatchingState>& matcherResults) {
if (matcherResults[mIndex] != MatchingState::kNotComputed) {
VLOG("Matcher %lld already evaluated ", (long long)mId);
return;
}
if (mAtomIds.find(event.GetTagId()) == mAtomIds.end()) {
matcherResults[mIndex] = MatchingState::kNotMatched;
return;
}
bool matched = matchesSimple(mUidMap, mMatcher, event);
matcherResults[mIndex] = matched ? MatchingState::kMatched : MatchingState::kNotMatched;
VLOG("Stats SimpleAtomMatcher %lld matched? %d", (long long)mId, matched);
}
} // namespace statsd
} // namespace os
} // namespace android
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