Discover Device (Java code sample)

Problem this snippet solves:

This Java client code sample uses Enterprise Manager's device inventory to discover a list of devices managed by the referenced Enterprise Manager.

Code :

/**
 * A class for testing the Management::EM::discover_devices iControl interface.
 */

public class ManagementEMDiscoverDevices {
    
    private static int MIN_ARGS = 3;
    private static int NUM_DEVICE_ARGS = 3;
    private static String USAGE = 
        "ManagementEMDiscoverDevices    " +
        "[  ] ...";
    private static int EM_PORT = 443;


    /**
     * The main method.
     *
     * @param args command line arguments
     */

    public static void main(String[] args) {

        if ((args.length < MIN_ARGS) ||
            (((args.length - MIN_ARGS) % NUM_DEVICE_ARGS) != 0)) {
            System.err.println("Usage: " + USAGE);
            System.exit(1);
        }

        String emAddress = args[0];
        String emUsername = args[1];
        String emPassword = args[2];

        int numDevices = (args.length - MIN_ARGS) / NUM_DEVICE_ARGS;

        String[] deviceAddresses = new String[numDevices];
        String[] deviceUsernames = new String[numDevices];
        String[] devicePasswords = new String[numDevices];


        for (int i = 0; i < deviceAddresses.length; i++) {
            int index = MIN_ARGS + (i * NUM_DEVICE_ARGS);

            deviceAddresses[i] = args[index];
            deviceUsernames[i] = args[index + 1];
            devicePasswords[i] = args[index + 2];
        }

        String taskId = null;

        try {
            iControl.Interfaces ic = new iControl.Interfaces();
            ic.initialize(emAddress, EM_PORT, emUsername, emPassword);

            taskId = ic.getManagementEM().discover_devices(deviceAddresses,
                                                           deviceUsernames,
                                                           devicePasswords);
        }
        catch (Exception e) {
            System.err.println("Failed to discover devices: " + e.getMessage());
            System.exit(1);
        }

        System.out.println("Discovery task started with task ID: " + taskId);

    } // public static void main

} // public class ManagementEMDiscoverDevices