1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define DEBUG false  // STOPSHIP if true
18#include "Log.h"
19
20#include "SimpleLogMatchingTracker.h"
21
22namespace android {
23namespace os {
24namespace statsd {
25
26using std::string;
27using std::unique_ptr;
28using std::unordered_map;
29using std::vector;
30
31
32SimpleLogMatchingTracker::SimpleLogMatchingTracker(const int64_t& id, const int index,
33                                                   const SimpleAtomMatcher& matcher,
34                                                   const UidMap& uidMap)
35    : LogMatchingTracker(id, index), mMatcher(matcher), mUidMap(uidMap) {
36    if (!matcher.has_atom_id()) {
37        mInitialized = false;
38    } else {
39        mAtomIds.insert(matcher.atom_id());
40        mInitialized = true;
41    }
42}
43
44SimpleLogMatchingTracker::~SimpleLogMatchingTracker() {
45}
46
47bool SimpleLogMatchingTracker::init(const vector<AtomMatcher>& allLogMatchers,
48                                    const vector<sp<LogMatchingTracker>>& allTrackers,
49                                    const unordered_map<int64_t, int>& matcherMap,
50                                    vector<bool>& stack) {
51    // no need to do anything.
52    return mInitialized;
53}
54
55void SimpleLogMatchingTracker::onLogEvent(const LogEvent& event,
56                                          const vector<sp<LogMatchingTracker>>& allTrackers,
57                                          vector<MatchingState>& matcherResults) {
58    if (matcherResults[mIndex] != MatchingState::kNotComputed) {
59        VLOG("Matcher %lld already evaluated ", (long long)mId);
60        return;
61    }
62
63    if (mAtomIds.find(event.GetTagId()) == mAtomIds.end()) {
64        matcherResults[mIndex] = MatchingState::kNotMatched;
65        return;
66    }
67
68    bool matched = matchesSimple(mUidMap, mMatcher, event);
69    matcherResults[mIndex] = matched ? MatchingState::kMatched : MatchingState::kNotMatched;
70    VLOG("Stats SimpleLogMatcher %lld matched? %d", (long long)mId, matched);
71}
72
73}  // namespace statsd
74}  // namespace os
75}  // namespace android
76