package test;
import java.*;
import java.sql.Driver;
public class Connect{
   private java.sql.Connection con = null;
   private final String url = "jdbc:microsoft:sqlserver://";
   private final String serverName= "localhost";
   private final String portNumber = "1433";
   private final String databaseName= "DBtest";
   private final String userName = "sa";
   private final String password = "123456";
   // Informs the driver to use server a side-cursor,
   // which permits more than one active statement
   // on a connection.
   private final String selectMethod = "cursor";

   // Constructor
   public Connect(){}

   private String getConnectionUrl(){
     return url+serverName+":"+portNumber+";databaseName="+databaseName+";selectMethod="+selectMethod+";";

   }

   private java.sql.Connection getConnection(){
     try{
        Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
        con = java.sql.DriverManager.getConnection(getConnectionUrl(),userName,password);
        if(con!=null) System.out.println("Connection Successful!");
     }catch(Exception e){
        e.printStackTrace();
        System.out.println("Error Trace in getConnection() : " + e.getMessage());
     }
     return con;
   }

   /*
     Display the driver properties, database details
   */

   public void displayDbProperties(){
     java.sql.DatabaseMetaData dm = null;
     java.sql.ResultSet rs = null;
     try{
        con= this.getConnection();
        if(con!=null){
          dm = con.getMetaData();
          System.out.println("Driver Information");
          System.out.println("/tDriver Name: "+ dm.getDriverName());
          System.out.println("/tDriver Version: "+ dm.getDriverVersion ());
          System.out.println("/nDatabase Information ");
          System.out.println("/tDatabase Name: "+ dm.getDatabaseProductName());
          System.out.println("/tDatabase Version: "+ dm.getDatabaseProductVersion());
          System.out.println("Avalilable Catalogs ");
          rs = dm.getCatalogs();
          while(rs.next()){
             System.out.println("/tcatalog: "+ rs.getString(1));
          }
          rs.close();
          rs = null;
          closeConnection();
        }else System.out.println("Error: No active Connection");
     }catch(Exception e){
        e.printStackTrace();
     }
     dm=null;
   }

   private void closeConnection(){
     try{
        if(con!=null)
          con.close();
        con=null;
     }catch(Exception e){
        e.printStackTrace();
     }
   }
   public static void main(String[] args) throws Exception
    {
     Connect myDbTest = new Connect();
     myDbTest.displayDbProperties();
    }
}