Main.java

package jo.sm.ent.cmd;

public class Main {

    private final String[] mArgs;
    private String mOp;
    private String[] mOpArgs;

    public Main(String[] argv) {
        mArgs = argv;
    }

    public void run() {
        parseArgs();
        if (null != mOp) switch (mOp) {
            case "dump":
                DumpEntityFile.main(mOpArgs);
                break;
            case "edit":
                EditEntityFile.main(mOpArgs);
                break;
            default:
                System.err.println("Unknown command '" + mOp + "'. Try 'dump' or 'edit'.");
                break;
        }
    }

    private void parseArgs() {
        if (mArgs.length == 0) {
            System.err.println("Try:");
            System.err.println("dump file.ent [id]");
            System.err.println("edit file.ent id (=|+=|-=) val");
            System.exit(0);
        }
        mOp = mArgs[0];
        mOpArgs = new String[mArgs.length - 1];
        System.arraycopy(mArgs, 1, mOpArgs, 0, mOpArgs.length);
    }

    public static void main(String[] argv) {
        Main app = new Main(argv);
        app.run();
    }
}