31eb67b349
statsd entries to clients. This change only includes changes on statds side and does not include java library for clients to import. Java library will be a separate change as it requires system api review. Test: statsd, statsd_test Change-Id: I306c6e9687801668cc0145b12d38406bfe634775
133 lines
4.3 KiB
C++
133 lines
4.3 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "Log.h"
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#include "StatsLogProcessor.h"
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#include "frameworks/base/cmds/statsd/src/stats_log.pb.h"
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#include "metrics/CountMetricProducer.h"
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#include "stats_util.h"
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#include <log/log_event_list.h>
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#include <utils/Errors.h>
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using namespace android;
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using std::make_unique;
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using std::unique_ptr;
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using std::vector;
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namespace android {
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namespace os {
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namespace statsd {
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StatsLogProcessor::StatsLogProcessor(const sp<UidMap>& uidMap,
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const std::function<void(const vector<uint8_t>&)>& pushLog)
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: m_dropbox_writer("all-logs"), mUidMap(uidMap), mPushLog(pushLog) {
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}
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StatsLogProcessor::~StatsLogProcessor() {
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}
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// TODO: what if statsd service restarts? How do we know what logs are already processed before?
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void StatsLogProcessor::OnLogEvent(const LogEvent& msg) {
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// TODO: Use EventMetric to filter the events we want to log.
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/* TODO: Convert this when we have the generic protobuf writing library in.
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EventMetricData eventMetricData = parse(msg);
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m_dropbox_writer.addEventMetricData(eventMetricData);
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*/
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// pass the event to metrics managers.
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for (auto& pair : mMetricsManagers) {
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pair.second->onLogEvent(msg);
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}
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}
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void StatsLogProcessor::OnConfigUpdated(const ConfigKey& key, const StatsdConfig& config) {
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auto it = mMetricsManagers.find(key);
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if (it != mMetricsManagers.end()) {
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it->second->finish();
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}
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ALOGD("Updated configuration for key %s", key.ToString().c_str());
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unique_ptr<MetricsManager> newMetricsManager = std::make_unique<MetricsManager>(config);
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if (newMetricsManager->isConfigValid()) {
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mMetricsManagers[key] = std::move(newMetricsManager);
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// Why doesn't this work? mMetricsManagers.insert({key, std::move(newMetricsManager)});
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ALOGD("StatsdConfig valid");
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} else {
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// If there is any error in the config, don't use it.
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ALOGD("StatsdConfig NOT valid");
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}
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}
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vector<StatsLogReport> StatsLogProcessor::onDumpReport(const ConfigKey& key) {
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auto it = mMetricsManagers.find(key);
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if (it == mMetricsManagers.end()) {
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ALOGW("Config source %s does not exist", key.ToString().c_str());
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return vector<StatsLogReport>();
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}
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return it->second->onDumpReport();
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}
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void StatsLogProcessor::OnConfigRemoved(const ConfigKey& key) {
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auto it = mMetricsManagers.find(key);
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if (it != mMetricsManagers.end()) {
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it->second->finish();
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mMetricsManagers.erase(it);
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}
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}
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void StatsLogProcessor::addEventMetricData(const EventMetricData& eventMetricData) {
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// TODO: Replace this code when MetricsManager.onDumpReport() is ready to
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// get a list of byte arrays.
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flushIfNecessary(eventMetricData);
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const int numBytes = eventMetricData.ByteSize();
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char buffer[numBytes];
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eventMetricData.SerializeToArray(&buffer[0], numBytes);
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string bufferString(buffer, numBytes);
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mEvents.push_back(bufferString);
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mBufferSize += eventMetricData.ByteSize();
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}
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void StatsLogProcessor::flushIfNecessary(const EventMetricData& eventMetricData) {
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if (eventMetricData.ByteSize() + mBufferSize > kMaxSerializedBytes) {
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flush();
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}
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}
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void StatsLogProcessor::flush() {
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StatsLogReport logReport;
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for (string eventBuffer : mEvents) {
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EventMetricData eventFromBuffer;
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eventFromBuffer.ParseFromString(eventBuffer);
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EventMetricData* newEntry = logReport.mutable_event_metrics()->add_data();
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newEntry->CopyFrom(eventFromBuffer);
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}
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const int numBytes = logReport.ByteSize();
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vector<uint8_t> logReportBuffer(numBytes);
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logReport.SerializeToArray(&logReportBuffer[0], numBytes);
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mPushLog(logReportBuffer);
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mEvents.clear();
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mBufferSize = 0;
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}
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} // namespace statsd
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} // namespace os
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} // namespace android
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