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/*
* Copyright (C) 2018 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 LOG_TAG "DrmMetricsConsumer"
#include <android-base/macros.h>
#include <mediadrm/DrmMetricsConsumer.h>
#include <mediadrm/DrmMetrics.h>
#include <utils/String8.h>
#include <utils/String16.h>
using ::android::String16;
using ::android::String8;
using ::android::hardware::hidl_string;
using ::android::hardware::hidl_vec;
using ::android::hardware::drm::V1_0::EventType;
using ::android::hardware::drm::V1_2::KeyStatusType;
using ::android::hardware::drm::V1_1::DrmMetricGroup;
using ::android::os::PersistableBundle;
namespace {
template <typename T> std::string GetAttributeName(T type);
template <> std::string GetAttributeName<KeyStatusType>(KeyStatusType type) {
static const char *type_names[] = {"USABLE", "EXPIRED",
"OUTPUT_NOT_ALLOWED", "STATUS_PENDING",
"INTERNAL_ERROR", "USABLE_IN_FUTURE"};
if (((size_t)type) >= arraysize(type_names)) {
return "UNKNOWN_TYPE";
}
return type_names[(size_t)type];
}
template <> std::string GetAttributeName<EventType>(EventType type) {
static const char *type_names[] = {"PROVISION_REQUIRED", "KEY_NEEDED",
"KEY_EXPIRED", "VENDOR_DEFINED",
"SESSION_RECLAIMED"};
if (((size_t)type) >= arraysize(type_names)) {
return "UNKNOWN_TYPE";
}
return type_names[(size_t)type];
}
template <typename T>
void ExportCounterMetric(const android::CounterMetric<T> &counter,
PersistableBundle *metrics) {
if (!metrics) {
ALOGE("metrics was unexpectedly null.");
return;
}
std::string success_count_name = counter.metric_name() + ".ok.count";
std::string error_count_name = counter.metric_name() + ".error.count";
std::vector<int64_t> status_values;
counter.ExportValues(
[&](const android::status_t status, const int64_t value) {
if (status == android::OK) {
metrics->putLong(android::String16(success_count_name.c_str()),
value);
} else {
int64_t total_errors(0);
metrics->getLong(android::String16(error_count_name.c_str()),
&total_errors);
metrics->putLong(android::String16(error_count_name.c_str()),
total_errors + value);
status_values.push_back(status);
}
});
if (!status_values.empty()) {
std::string error_list_name = counter.metric_name() + ".error.list";
metrics->putLongVector(android::String16(error_list_name.c_str()),
status_values);
}
}
template <typename T>
void ExportCounterMetricWithAttributeNames(
const android::CounterMetric<T> &counter, PersistableBundle *metrics) {
if (!metrics) {
ALOGE("metrics was unexpectedly null.");
return;
}
counter.ExportValues([&](const T &attribute, const int64_t value) {
std::string name = counter.metric_name() + "." +
GetAttributeName(attribute) + ".count";
metrics->putLong(android::String16(name.c_str()), value);
});
}
template <typename T>
void ExportEventMetric(const android::EventMetric<T> &event,
PersistableBundle *metrics) {
if (!metrics) {
ALOGE("metrics was unexpectedly null.");
return;
}
std::string success_count_name = event.metric_name() + ".ok.count";
std::string error_count_name = event.metric_name() + ".error.count";
std::string timing_name = event.metric_name() + ".ok.average_time_micros";
std::vector<int64_t> status_values;
event.ExportValues([&](const android::status_t &status,
const android::EventStatistics &value) {
if (status == android::OK) {
metrics->putLong(android::String16(success_count_name.c_str()),
value.count);
metrics->putLong(android::String16(timing_name.c_str()),
value.mean);
} else {
int64_t total_errors(0);
metrics->getLong(android::String16(error_count_name.c_str()),
&total_errors);
metrics->putLong(android::String16(error_count_name.c_str()),
total_errors + value.count);
status_values.push_back(status);
}
});
if (!status_values.empty()) {
std::string error_list_name = event.metric_name() + ".error.list";
metrics->putLongVector(android::String16(error_list_name.c_str()),
status_values);
}
}
void ExportSessionLifespans(
const std::map<std::string, std::pair<int64_t, int64_t>> &sessionLifespans,
PersistableBundle *metrics) {
if (!metrics) {
ALOGE("metrics was unexpectedly null.");
return;
}
if (sessionLifespans.empty()) {
return;
}
PersistableBundle startTimesBundle;
PersistableBundle endTimesBundle;
for (auto it = sessionLifespans.begin(); it != sessionLifespans.end();
it++) {
String16 key(it->first.c_str(), it->first.size());
startTimesBundle.putLong(key, it->second.first);
endTimesBundle.putLong(key, it->second.second);
}
metrics->putPersistableBundle(
android::String16("drm.mediadrm.session_start_times_ms"),
startTimesBundle);
metrics->putPersistableBundle(
android::String16("drm.mediadrm.session_end_times_ms"), endTimesBundle);
}
template <typename CT>
void SetValue(const String16 &name, DrmMetricGroup::ValueType type,
const CT &value, PersistableBundle *bundle) {
switch (type) {
case DrmMetricGroup::ValueType::INT64_TYPE:
bundle->putLong(name, value.int64Value);
break;
case DrmMetricGroup::ValueType::DOUBLE_TYPE:
bundle->putDouble(name, value.doubleValue);
break;
case DrmMetricGroup::ValueType::STRING_TYPE:
bundle->putString(name, String16(value.stringValue.c_str()));
break;
default:
ALOGE("Unexpected value type: %hhu", type);
}
}
inline String16 MakeIndexString(unsigned int index) {
std::string str("[");
str.append(std::to_string(index));
str.append("]");
return String16(str.c_str());
}
} // namespace
namespace android {
status_t DrmMetricsConsumer::consumeFrameworkMetrics(const MediaDrmMetrics &metrics) {
ExportCounterMetric(metrics.mOpenSessionCounter, mBundle);
ExportCounterMetric(metrics.mCloseSessionCounter, mBundle);
ExportEventMetric(metrics.mGetKeyRequestTimeUs, mBundle);
ExportEventMetric(metrics.mProvideKeyResponseTimeUs, mBundle);
ExportCounterMetric(metrics.mGetProvisionRequestCounter, mBundle);
ExportCounterMetric(metrics.mProvideProvisionResponseCounter, mBundle);
ExportCounterMetricWithAttributeNames(metrics.mKeyStatusChangeCounter, mBundle);
ExportCounterMetricWithAttributeNames(metrics.mEventCounter, mBundle);
ExportCounterMetric(metrics.mGetDeviceUniqueIdCounter, mBundle);
ExportSessionLifespans(metrics.GetSessionLifespans(), mBundle);
return android::OK;
}
status_t DrmMetricsConsumer::consumeHidlMetrics(
const String8 &vendor,
const hidl_vec<DrmMetricGroup> &pluginMetrics) {
PersistableBundle pluginBundle;
if (DrmMetricsConsumer::HidlMetricsToBundle(
pluginMetrics, &pluginBundle) == OK) {
mBundle->putPersistableBundle(String16(vendor), pluginBundle);
}
return android::OK;
}
status_t DrmMetricsConsumer::HidlMetricsToBundle(
const hidl_vec<DrmMetricGroup> &hidlMetricGroups,
PersistableBundle *bundleMetricGroups) {
if (bundleMetricGroups == nullptr) {
return UNEXPECTED_NULL;
}
if (hidlMetricGroups.size() == 0) {
return OK;
}
int groupIndex = 0;
std::map<String16, int> indexMap;
for (const auto &hidlMetricGroup : hidlMetricGroups) {
PersistableBundle bundleMetricGroup;
for (const auto &hidlMetric : hidlMetricGroup.metrics) {
String16 metricName(hidlMetric.name.c_str());
PersistableBundle bundleMetric;
// Add metric component values.
for (const auto &value : hidlMetric.values) {
SetValue(String16(value.componentName.c_str()), value.type,
value, &bundleMetric);
}
// Set metric attributes.
PersistableBundle bundleMetricAttributes;
for (const auto &attribute : hidlMetric.attributes) {
SetValue(String16(attribute.name.c_str()), attribute.type,
attribute, &bundleMetricAttributes);
}
// Add attributes to the bundle metric.
bundleMetric.putPersistableBundle(String16("attributes"),
bundleMetricAttributes);
// Add one layer of indirection, allowing for repeated metric names.
PersistableBundle repeatedMetrics;
bundleMetricGroup.getPersistableBundle(metricName,
&repeatedMetrics);
int index = indexMap[metricName];
repeatedMetrics.putPersistableBundle(MakeIndexString(index),
bundleMetric);
indexMap[metricName] = ++index;
// Add the bundle metric to the group of metrics.
bundleMetricGroup.putPersistableBundle(metricName,
repeatedMetrics);
}
// Add the bundle metric group to the collection of groups.
bundleMetricGroups->putPersistableBundle(MakeIndexString(groupIndex++),
bundleMetricGroup);
}
return OK;
}
} // namespace android
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