public static ClusterProperties from()

in modules/mesos-ext/src/main/java/org/apache/ignite/mesos/ClusterProperties.java [478:547]
54 lines of code
7 McCabe index (conditional complexity)

    public static ClusterProperties from(String cfg) {
        try {
            Properties props = null;

            if (cfg != null) {
                props = new Properties();

                try (FileInputStream in = new FileInputStream(cfg)) {
                    props.load(in);
                }
            }

            ClusterProperties prop = new ClusterProperties();

            prop.mesosUrl = getStringProperty(MESOS_MASTER_URL, props, DEFAULT_MESOS_MASTER_URL);

            prop.httpSrvHost = getStringProperty(IGNITE_HTTP_SERVER_HOST, props, getNonLoopbackAddress());

            String port = System.getProperty("PORT0");

            if (port != null && !port.isEmpty())
                prop.httpSrvPort = Integer.valueOf(port);
            else
                prop.httpSrvPort = Integer.valueOf(getStringProperty(IGNITE_HTTP_SERVER_PORT, props,
                    DEFAULT_HTTP_SERVER_PORT));

            prop.clusterName = getStringProperty(IGNITE_CLUSTER_NAME, props, DEFAULT_CLUSTER_NAME);

            prop.userLibsUrl = getStringProperty(IGNITE_USERS_LIBS_URL, props, null);
            prop.ignitePkgUrl = getStringProperty(IGNITE_PACKAGE_URL, props, null);
            prop.ignitePkgPath = getStringProperty(IGNITE_PACKAGE_PATH, props, null);
            prop.licenceUrl = getStringProperty(LICENCE_URL, props, null);
            prop.igniteCfgUrl = getStringProperty(IGNITE_CONFIG_XML_URL, props, null);

            prop.cpu = getDoubleProperty(IGNITE_TOTAL_CPU, props, UNLIMITED);
            prop.cpuPerNode = getDoubleProperty(IGNITE_RUN_CPU_PER_NODE, props, UNLIMITED);
            prop.mem = getDoubleProperty(IGNITE_TOTAL_MEMORY, props, UNLIMITED);
            prop.memPerNode = getDoubleProperty(IGNITE_MEMORY_PER_NODE, props, UNLIMITED);
            prop.disk = getDoubleProperty(IGNITE_TOTAL_DISK_SPACE, props, UNLIMITED);
            prop.diskPerNode = getDoubleProperty(IGNITE_DISK_SPACE_PER_NODE, props, 1024.0);
            prop.nodeCnt = getDoubleProperty(IGNITE_NODE_COUNT, props, UNLIMITED);
            prop.minCpu = getDoubleProperty(IGNITE_MIN_CPU_PER_NODE, props, DEFAULT_RESOURCE_MIN_CPU);
            prop.minMemory = getDoubleProperty(IGNITE_MIN_MEMORY_PER_NODE, props, DEFAULT_RESOURCE_MIN_MEM);

            prop.jvmOpts = getStringProperty(IGNITE_JVM_OPTS, props, "");

            prop.igniteVer = getStringProperty(IGNITE_VERSION, props, DEFAULT_IGNITE_VERSION);
            prop.igniteWorkDir = getStringProperty(IGNITE_WORK_DIR, props, DEFAULT_IGNITE_WORK_DIR);
            prop.igniteCfg = getStringProperty(IGNITE_CONFIG_XML, props, null);
            prop.userLibs = getStringProperty(IGNITE_USERS_LIBS, props, null);

            String ptrn = getStringProperty(IGNITE_HOSTNAME_CONSTRAINT, props, null);

            prop.idleTimeout = getLongProperty(IGNITE_HTTP_SERVER_IDLE_TIMEOUT, props, IGNITE_HTTP_SERVER_IDLE_TIMEOUT_DEFAULT);

            if (ptrn != null) {
                try {
                    prop.hostnameConstraint = Pattern.compile(ptrn);
                }
                catch (PatternSyntaxException e) {
                    log.log(Level.WARNING, "IGNITE_HOSTNAME_CONSTRAINT has invalid pattern. It will be ignore.", e);
                }
            }

            return prop;
        }
        catch (IOException e) {
            throw new RuntimeException(e);
        }
    }