public static LoadGen parseArgs()

in bigtop-bigpetstore/bigpetstore-transaction-queue/src/main/java/org/apache/bigtop/bigpetstore/qstream/LoadGenFactory.java [47:105]
55 lines of code
10 McCabe index (conditional complexity)

    public static LoadGen parseArgs(String[] args) throws Throwable {
        if(args.length==0){
            System.out.println("Running default simulation, which should result in " + DEFAULT_EXPECTED);
            return parseArgs(DEFAULT);
        }
        int nStores = 1000;
        int nCustomers = 1000;
        double simulationLength = -1;
        long seed = System.currentTimeMillis();
        String outputARG = "/shared";

        int PARAMS=5;
        if (args.length != PARAMS && args.length != (PARAMS - 1)) {
            printUsage();
            System.exit(1);
        }
        //Was Dir, now ARG, since we can support http or file paths.
        outputARG = args[0];
        try {
            nStores = Integer.parseInt(args[1]);
        } catch (Throwable t) {
            System.err.println("Unable to parse '" + args[1] + "' as an integer for nStores.\n");
            printUsage();
            System.exit(1);
        }
        try {
            nCustomers = Integer.parseInt(args[2]);
        } catch (Throwable t) {
            System.err.println("Unable to parse '" + args[2] + "' as an integer for nCustomers.\n");
            printUsage();
            System.exit(1);
        }
        try {
            simulationLength = Double.parseDouble(args[3]);
        } catch (Throwable t) {
            System.err.println("Unable to parse '" + args[3] + "' as a float for simulationLength.\n");
            printUsage();
            System.exit(1);
        }

        //If seed isnt present, then no is used seed.
        if (args.length == PARAMS) {
            try {
                seed = Long.parseLong(args[4]);
            } catch (Throwable t) {
                System.err.println("Unable to parse '" + args[4] + "' as a long for seed.\n");
                printUsage();
                System.exit(1);
            }
        } else {
            seed = new Random().nextLong();
        }
        if(outputARG.startsWith("http://")){
            return new HttpLoadGen(nStores,nCustomers,simulationLength,seed, new URL(outputARG));
        }
        else{
            return new FileLoadGen(nStores,nCustomers,simulationLength,seed, Paths.get(outputARG));
        }
    }