static AWSPredictionsPluginConfiguration fromJson()

in aws-predictions/src/main/java/com/amplifyframework/predictions/aws/AWSPredictionsPluginConfiguration.java [74:138]
58 lines of code
6 McCabe index (conditional complexity)

    static AWSPredictionsPluginConfiguration fromJson(JSONObject configurationJson) throws PredictionsException {
        if (configurationJson == null) {
            throw new PredictionsException(
                "Could not locate predictions configuration for AWS Predictions Plugin.",
                "Verify that amplifyconfiguration.json contains a section for \"awsPredictionsPlugin\"."
            );
        }

        final Region defaultRegion;
        final SpeechGeneratorConfiguration speechGeneratorConfiguration;
        final TranslateTextConfiguration translateTextConfiguration;
        final IdentifyLabelsConfiguration identifyLabelsConfiguration;
        final IdentifyEntitiesConfiguration identifyEntitiesConfiguration;
        final IdentifyTextConfiguration identifyTextConfiguration;
        final InterpretTextConfiguration interpretConfiguration;

        try {
            // Get default region
            String regionString = configurationJson.getString(ConfigKey.DEFAULT_REGION.key());
            defaultRegion = Region.getRegion(regionString);

            if (configurationJson.has(ConfigKey.CONVERT.key())) {
                JSONObject convertJson = configurationJson.getJSONObject(ConfigKey.CONVERT.key());
                speechGeneratorConfiguration = SpeechGeneratorConfiguration.fromJson(convertJson);
                translateTextConfiguration = TranslateTextConfiguration.fromJson(convertJson);
            } else {
                speechGeneratorConfiguration = null;
                translateTextConfiguration = null;
            }

            if (configurationJson.has(ConfigKey.IDENTIFY.key())) {
                JSONObject identifyJson = configurationJson.getJSONObject(ConfigKey.IDENTIFY.key());
                identifyLabelsConfiguration = IdentifyLabelsConfiguration.fromJson(identifyJson);
                identifyEntitiesConfiguration = IdentifyEntitiesConfiguration.fromJson(identifyJson);
                identifyTextConfiguration = IdentifyTextConfiguration.fromJson(identifyJson);
            } else {
                identifyLabelsConfiguration = null;
                identifyEntitiesConfiguration = null;
                identifyTextConfiguration = null;
            }

            if (configurationJson.has(ConfigKey.INTERPRET.key())) {
                JSONObject interpretJson = configurationJson.getJSONObject(ConfigKey.INTERPRET.key());
                interpretConfiguration = InterpretTextConfiguration.fromJson(interpretJson);
            } else {
                interpretConfiguration = null;
            }
        } catch (JSONException | IllegalArgumentException exception) {
            throw new PredictionsException(
                    "Issue encountered while parsing configuration JSON",
                    exception,
                    "Check the attached exception for more details."
            );
        }

        return new AWSPredictionsPluginConfiguration(
                defaultRegion,
                speechGeneratorConfiguration,
                translateTextConfiguration,
                identifyLabelsConfiguration,
                identifyEntitiesConfiguration,
                identifyTextConfiguration,
                interpretConfiguration
        );
    }