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/*
* Copyright 2022 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.
*/
#pragma once
#include <hardware/bt_le_audio.h>
#include <cstdint>
#include <memory>
#include <unordered_map>
#include "le_audio_types.h"
#include "types/raw_address.h"
namespace le_audio {
enum ConnectionStatus : int32_t {
UNKNOWN = 0,
SUCCESS = 1,
FAILED = 2,
};
/* android.bluetooth.leaudio.ContextType */
enum class LeAudioMetricsContextType : int32_t {
INVALID = 0,
UNSPECIFIED = 1,
COMMUNICATION = 2,
MEDIA = 3,
INSTRUCTIONAL = 4,
ATTENTION_SEEKING = 5,
IMMEDIATE_ALERT = 6,
MAN_MACHINE = 7,
EMERGENCY_ALERT = 8,
RINGTONE = 9,
TV = 10,
LIVE = 11,
GAME = 12,
RFU = 13,
};
class GroupMetrics {
public:
GroupMetrics() {}
virtual ~GroupMetrics() {}
virtual void AddStateChangedEvent(const RawAddress& address,
bluetooth::le_audio::ConnectionState state,
ConnectionStatus status) = 0;
virtual void AddStreamStartedEvent(
le_audio::types::LeAudioContextType context_type) = 0;
virtual void AddStreamEndedEvent() = 0;
virtual void SetGroupSize(int32_t group_size) = 0;
virtual bool IsClosed() = 0;
virtual void WriteStats() = 0;
virtual void Flush() = 0;
};
class MetricsCollector {
public:
static MetricsCollector* Get();
/**
* Update the size of given group which will be used in the
* LogMetricBluetoothLeAudioConnectionStateChanged()
*
* @param group_id ID of target group
* @param group_size Size of target group
*/
void OnGroupSizeUpdate(int32_t group_id, int32_t group_size);
/**
* When there is a change in Bluetooth LE Audio connection state
*
* @param group_id Group ID of the associated device.
* @param address Address of the associated device.
* @param state New LE Audio connetion state.
* @param status status or reason of the state transition. Ignored at
* CONNECTING states.
*/
void OnConnectionStateChanged(int32_t group_id, const RawAddress& address,
bluetooth::le_audio::ConnectionState state,
ConnectionStatus status);
/**
* When there is a change in LE Audio stream started
*
* @param group_id Group ID of the associated stream.
*/
void OnStreamStarted(int32_t group_id,
le_audio::types::LeAudioContextType context_type);
/**
* When there is a change in LE Audio stream started
*
* @param group_id Group ID of the associated stream.
*/
void OnStreamEnded(int32_t group_id);
/**
* Flush all log to statsd
*
* @param group_id Group ID of the associated stream.
*/
void Flush();
protected:
MetricsCollector() {}
private:
static MetricsCollector* instance;
std::unordered_map<int32_t, std::unique_ptr<GroupMetrics>> opened_groups_;
std::unordered_map<int32_t, int32_t> group_size_table_;
};
} // namespace le_audio
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