com.ibm.as400.access

Class CommandLineArguments

  • java.lang.Object
    • com.ibm.as400.access.CommandLineArguments

  • public class CommandLineArguments
extends java.lang.Object
    A utility that parses command line arguments into options specified in the format "-optionName optionValue".

    Here is an example of calling a program from the command line with arguments: 

      A sample program:  java myProgram systemName -userid myID -password myPWD

  The Java code to parse the command:
   
  // Create a vector to hold all the defined/expected command line arguments.
  Vector options = new Vector();
  options.addElement("-userID");
  options.addElement("-password");
  
  // Create a Hashtable to map shortcuts to the command line arguments. 
  Hashtable shortcuts = new Hashtable();
  shortcuts.put("-u", "-userID");
  shortcuts.put("-p", "-password");
  
  // Create a CommandLineArguments object with the args array passed into main(String args[])
  // along with the vector and hashtable just created.
  CommandLineArguments arguments = new CommandLineArguments(args, options, shortcuts);
  
  // Get the name of the IBM i system that the user wants to run to.
  String system = arguments.getOptionValue("");
  
  // Get the user ID that the user wants to log in with.
  String uid = arguments.getOptionValue("-userID");
  
  // Get the password that the user wants to log in with.
  String pwd = arguments.getOptionValue("-password");

    • Constructor Summary

      Constructors 
      Constructor and Description
      CommandLineArguments(java.lang.String[] args)
      Creates a CommandLineArguments object.
      CommandLineArguments(java.lang.String[] args, java.util.Vector expectedOptions, java.util.Hashtable shortcuts)
      Creates a CommandLineArguments object.

    • Method Summary

      Methods 
      Modifier and Type Method and Description
      java.util.Enumeration getExtraOptions()
      Returns the list of any extra options that were specified.
      java.util.Enumeration getOptionNames()
      Returns the list of option names that were specified.
      java.lang.String getOptionValue(java.lang.String optionName)
      Returns the value of an option.
      boolean isOptionSpecified(java.lang.String optionName)
      Indicates whether the option was specified.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • CommandLineArguments

        public CommandLineArguments(java.lang.String[] args)
        Creates a CommandLineArguments object.
        Parameters:
        args - The command line arguments.

      • CommandLineArguments

        public CommandLineArguments(java.lang.String[] args,
                    java.util.Vector expectedOptions,
                    java.util.Hashtable shortcuts)
        Creates a CommandLineArguments object.
        Parameters:
        args - The command line arguments.
        expectedOptions - The expected options. This is a Vector of Strings, each starting with a hyphen ("-"). These are not case sensitive. Specify null if any options are expected.
        shortcuts - The shortcuts. This is a Hashtable where the keys are Strings for the shortcuts (e.g. "-?") and the elements are Strings for the option (e.g. "-help"). All strings start with a hyphen ("-"). Specify null if no shortcuts are used.

    • Method Detail

      • getExtraOptions

        public java.util.Enumeration getExtraOptions()
        Returns the list of any extra options that were specified. These are options that the application was not expecting.
        Returns:
        The list of extra options. This is an Enumeration which contains a String for each extra option. If there were no extra options, an empty Enumeration is returned.

      • getOptionNames

        public java.util.Enumeration getOptionNames()
        Returns the list of option names that were specified.
        Returns:
        The list of option names. This is an Enumeration which contains a String for each option name. Note: The list may include the special "unnamed" option, "-", which is aliased as "".

      • getOptionValue

        public java.lang.String getOptionValue(java.lang.String optionName)
        Returns the value of an option.
        Parameters:
        optionName - The option name.
        Returns:
        The option value, or null if the option was not specified.

      • isOptionSpecified

        public boolean isOptionSpecified(java.lang.String optionName)
        Indicates whether the option was specified.
        Parameters:
        optionName - The option name.
        Returns:
        true if the option was specified; false otherwise.
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