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Administration tool to handle access rights within the CLARUS proxy

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package eu.clarussecure.arm;

public class Main {
    static public void main(String[] args) {
        // Get the instance of the Command Parser.
        // This object will create the correct instance of the Command and delegate its parsing correctly.
        CommandParser parser = CommandParser.getInstance();

        // Parse the command. This method will do all the checkings required to validate the command
        Command com = null;
        try {
            com = parser.parse(args);
        } catch (CommandParserException e) {
            System.err.println(e.getMessage());
            System.exit(1);
        }

        // Start the delegation. This command will make the required modifications to the set of policies.
        CommandReturn cr = null;
        try {
            cr = com.execute();
        } catch (CommandExecutionException e) {
            System.err.println(e.getMessage());
            System.exit(2);
        }

        // Print the return on the screen, and alert in case of an error
        if (cr.getReturnValue() == 0) {
            System.out.println(cr.getReturnInfo());
        } else {
            System.out.println("The command '" + args[0] + "' could not be completed:");
            System.out.println(cr.getReturnInfo());
        }

        //printPolicies(policies);

        // Return the value to the shell as well
        System.exit(cr.getReturnValue());
    }
}