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 #ifndef COMBINATION_ATOM_MATCHING_TRACKER_H
17 #define COMBINATION_ATOM_MATCHING_TRACKER_H
18 
19 #include <unordered_map>
20 #include <vector>
21 
22 #include "AtomMatchingTracker.h"
23 #include "src/statsd_config.pb.h"
24 
25 namespace android {
26 namespace os {
27 namespace statsd {
28 
29 // Represents a AtomMatcher_Combination in the StatsdConfig.
30 class CombinationAtomMatchingTracker : public AtomMatchingTracker {
31 public:
32     CombinationAtomMatchingTracker(const int64_t id, const uint64_t protoHash);
33 
34     MatcherInitResult init(int matcherIndex, const std::vector<AtomMatcher>& allAtomMatchers,
35                            const std::vector<sp<AtomMatchingTracker>>& allAtomMatchingTrackers,
36                            const std::unordered_map<int64_t, int>& matcherMap,
37                            std::vector<uint8_t>& stack);
38 
39     optional<InvalidConfigReason> onConfigUpdated(
40             const AtomMatcher& matcher,
41             const std::unordered_map<int64_t, int>& atomMatchingTrackerMap) override;
42 
43     ~CombinationAtomMatchingTracker();
44 
45     void onLogEvent(const LogEvent& event, int matcherIndex,
46                     const std::vector<sp<AtomMatchingTracker>>& allAtomMatchingTrackers,
47                     std::vector<MatchingState>& matcherResults,
48                     std::vector<std::shared_ptr<LogEvent>>& matcherTransformations) override;
49 
50 private:
51     LogicalOperation mLogicalOperation;
52 
53     std::vector<int> mChildren;
54 
55     FRIEND_TEST(ConfigUpdateTest, TestUpdateMatchers);
56 };
57 
58 }  // namespace statsd
59 }  // namespace os
60 }  // namespace android
61 #endif  // COMBINATION_ATOM_MATCHING_TRACKER_H
62