override fun start()

in amazon-chime-sdk/src/main/java/com/amazonaws/services/chime/sdk/meetings/internal/audio/DefaultAudioClientController.kt [115:196]
73 lines of code
6 McCabe index (conditional complexity)

    override fun start(
        audioFallbackUrl: String,
        audioHostUrl: String,
        meetingId: String,
        attendeeId: String,
        joinToken: String,
        audioMode: AudioMode
    ) {
        // Validate audio client state
        if (audioClientState != AudioClientState.INITIALIZED &&
            audioClientState != AudioClientState.STOPPED
        ) {
            logger.warn(
                TAG,
                "Current audio client state $audioClientState is invalid to start audio, ignoring"
            )
            return
        }

        val audioUrlParts: List<String> =
            audioHostUrl.split(":".toRegex()).dropLastWhile { it.isEmpty() }

        val (host: String, portStr: String) = if (audioUrlParts.size == 2) audioUrlParts else listOf(
            audioUrlParts[0],
            "$AUDIO_PORT_OFFSET"
        )

        // We subtract 200 here since audio client will add an offset of 200 for the DTLS port
        val port = try {
            Integer.parseInt(portStr) - AUDIO_PORT_OFFSET
        } catch (exception: Exception) {
            logger.warn(
                TAG,
                "Error parsing int. Using default value. Exception: ${exception.message}"
            )
            DEFAULT_PORT
        }
        setUpAudioConfiguration(audioMode)
        eventAnalyticsController.publishEvent(EventName.meetingStartRequested)
        audioClientObserver.notifyAudioClientObserver { observer ->
            observer.onAudioSessionStartedConnecting(
                false
            )
        }
        audioManager.mode = AudioManager.MODE_IN_COMMUNICATION

        val appInfo = AppInfoUtil.initializeAudioClientAppInfo(context)

        uiScope.launch {
            val audioModeInternal = when (audioMode) {
                AudioMode.Mono16K -> AudioModeInternal.MONO_16K
                AudioMode.Mono48K -> AudioModeInternal.MONO_48K
                AudioMode.Stereo48K -> AudioModeInternal.STEREO_48K
            }
            val res = audioClient.startSessionV2(
                AudioClient.XTL_DEFAULT_TRANSPORT,
                host,
                port,
                joinToken,
                meetingId,
                attendeeId,
                muteMicAndSpeaker,
                muteMicAndSpeaker,
                DEFAULT_PRESENTER,
                audioFallbackUrl,
                null,
                appInfo,
                audioModeInternal
            )

            if (res != AUDIO_CLIENT_RESULT_SUCCESS) {
                logger.error(TAG, "Failed to start audio session. Response code: $res")

                eventAnalyticsController.publishEvent(
                    EventName.meetingStartFailed
                )
            } else {
                logger.info(TAG, "Started audio session.")
                audioClientState = AudioClientState.STARTED
            }
        }
    }