private ConfigManager()

in frontend/server/src/main/java/org/pytorch/serve/util/ConfigManager.java [135:232]
81 lines of code
19 McCabe index (conditional complexity)

    private ConfigManager(Arguments args) throws IOException {
        prop = new Properties();

        this.snapshotDisabled = args.isSnapshotDisabled();
        String version = readFile(getModelServerHome() + "/ts/version.txt");
        if (version != null) {
            version = version.replaceAll("[\\n\\t ]", "");
            prop.setProperty(VERSION, version);
        }

        String logLocation = System.getenv("LOG_LOCATION");
        if (logLocation != null) {
            System.setProperty("LOG_LOCATION", logLocation);
        } else if (System.getProperty("LOG_LOCATION") == null) {
            System.setProperty("LOG_LOCATION", "logs");
        }

        String metricsLocation = System.getenv("METRICS_LOCATION");
        if (metricsLocation != null) {
            System.setProperty("METRICS_LOCATION", metricsLocation);
        } else if (System.getProperty("METRICS_LOCATION") == null) {
            System.setProperty("METRICS_LOCATION", "logs");
        }

        String filePath = System.getenv("TS_CONFIG_FILE");
        Properties snapshotConfig = null;

        if (filePath == null) {
            filePath = args.getTsConfigFile();
            if (filePath == null) {
                snapshotConfig = getLastSnapshot();
                if (snapshotConfig == null) {
                    filePath = System.getProperty("tsConfigFile", "config.properties");
                } else {
                    prop.putAll(snapshotConfig);
                }
            }
        }

        if (filePath != null) {
            File tsConfigFile = new File(filePath);
            if (tsConfigFile.exists()) {
                try (InputStream stream = Files.newInputStream(tsConfigFile.toPath())) {
                    prop.load(stream);
                    prop.put("tsConfigFile", filePath);
                } catch (IOException e) {
                    throw new IllegalStateException("Unable to read configuration file", e);
                }
            }
        }

        resolveEnvVarVals(prop);

        String modelStore = args.getModelStore();
        if (modelStore != null) {
            prop.setProperty(TS_MODEL_STORE, modelStore);
        }

        String workflowStore = args.getWorkflowStore();
        if (workflowStore != null) {
            prop.setProperty(TS_WORKFLOW_STORE, workflowStore);
        }

        String[] models = args.getModels();
        if (models != null) {
            prop.setProperty(TS_LOAD_MODELS, String.join(",", models));
        }

        prop.setProperty(
                TS_NUMBER_OF_GPU,
                String.valueOf(
                        Integer.min(
                                getAvailableGpu(),
                                getIntProperty(TS_NUMBER_OF_GPU, Integer.MAX_VALUE))));

        String pythonExecutable = args.getPythonExecutable();
        if (pythonExecutable != null) {
            prop.setProperty(PYTHON_EXECUTABLE, pythonExecutable);
        }

        try {
            InetAddress ip = InetAddress.getLocalHost();
            hostName = ip.getHostName();
        } catch (UnknownHostException e) {
            hostName = "Unknown";
        }

        if (Boolean.parseBoolean(prop.getProperty(TS_ASYNC_LOGGING))) {
            enableAsyncLogging();
        }

        if (Boolean.parseBoolean(getEnableEnvVarsConfig())) {
            // Environment variables have higher precedence over the config file variables
            setSystemVars();
        }

        setModelConfig();
    }