public static InputStream getInputStreamFromKVS()

in lca-ai-stack/source/kvs_transcribe_streaming/src/main/java/com/amazonaws/kvstranscribestreaming/KVSUtils.java [165:212]
41 lines of code
4 McCabe index (conditional complexity)

    public static InputStream getInputStreamFromKVS(String streamName,
                                                    Regions region,
                                                    String startFragmentNum,
                                                    AWSCredentialsProvider awsCredentialsProvider,
                                                    String startSelectorType) {
        Validate.notNull(streamName);
        Validate.notNull(region);
        Validate.notNull(startFragmentNum);
        Validate.notNull(awsCredentialsProvider);

        AmazonKinesisVideo amazonKinesisVideo = (AmazonKinesisVideo) AmazonKinesisVideoClientBuilder.standard().build();

        String endPoint = amazonKinesisVideo.getDataEndpoint(new GetDataEndpointRequest()
                .withAPIName(APIName.GET_MEDIA)
                .withStreamName(streamName)).getDataEndpoint();

        AmazonKinesisVideoMediaClientBuilder amazonKinesisVideoMediaClientBuilder = AmazonKinesisVideoMediaClientBuilder.standard()
                .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration(endPoint, region.getName()))
                .withCredentials(awsCredentialsProvider);
        AmazonKinesisVideoMedia amazonKinesisVideoMedia = amazonKinesisVideoMediaClientBuilder.build();

        StartSelector startSelector;
        startSelectorType = isNullOrEmpty(startSelectorType) ? "NOW" : startSelectorType;
        switch (startSelectorType) {
            case "FRAGMENT_NUMBER":
                startSelector = new StartSelector()
                        .withStartSelectorType(StartSelectorType.FRAGMENT_NUMBER)
                        .withAfterFragmentNumber(startFragmentNum);
                logger.info("StartSelector set to FRAGMENT_NUMBER: " + startFragmentNum);
                break;
            case "NOW":
            default:
                startSelector = new StartSelector()
                        .withStartSelectorType(StartSelectorType.NOW);
                logger.info("StartSelector set to NOW");
                break;
        }

        GetMediaResult getMediaResult = amazonKinesisVideoMedia.getMedia(new GetMediaRequest()
                .withStreamName(streamName)
                .withStartSelector(startSelector));

        logger.info("GetMedia called on stream {} response {} requestId {}", streamName,
                getMediaResult.getSdkHttpMetadata().getHttpStatusCode(),
                getMediaResult.getSdkResponseMetadata().getRequestId());

        return getMediaResult.getPayload();
    }