Package uk.ac.starlink.table.jdbc

Class TerminalAuthenticator

  • All Implemented Interfaces:
    JDBCAuthenticator
    public class TerminalAuthenticator
extends java.lang.Object
implements JDBCAuthenticator
    Provides JDBC authentication using the terminal; assumes that someone is sitting at System.in.

    • Constructor Summary

      Constructors 
      Constructor Description
      TerminalAuthenticator()
      Constructs a new authenticator which uses System.err for prompting.
      TerminalAuthenticator​(java.io.PrintStream promptStrm)
      Constructs a new authenticator with a given stream to use for writing prompts.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.String[] authenticate()
      Obtains username and password.
      java.lang.String readPassword()
      Prompts to the prompt stream and reads the password from standard input.
      java.lang.String readUser()
      Prompts to the prompt stream and reads the user name from standard input.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • TerminalAuthenticator

        public TerminalAuthenticator​(java.io.PrintStream promptStrm)
        Constructs a new authenticator with a given stream to use for writing prompts.
        Parameters:
        promptStrm - output stream for prompting

      • TerminalAuthenticator

        public TerminalAuthenticator()
        Constructs a new authenticator which uses System.err for prompting.

    • Method Detail

      • authenticate

        public java.lang.String[] authenticate()
                                throws java.io.IOException
        Description copied from interface: JDBCAuthenticator
        Obtains username and password. The return value is a two-element array containing the username and password to be used, in that order. Either or both of these may be null.
        Specified by:
        authenticate in interface JDBCAuthenticator
        Returns:
        String[]{username,password}
        Throws:
        java.io.IOException - if there is some error

      • readUser

        public java.lang.String readUser()
                          throws java.io.IOException
        Prompts to the prompt stream and reads the user name from standard input.
        Returns:
        user name obtained from user
        Throws:
        java.io.IOException

      • readPassword

        public java.lang.String readPassword()
                              throws java.io.IOException
        Prompts to the prompt stream and reads the password from standard input.
        Returns:
        password obtained from user
        Throws:
        java.io.IOException