src/jdbc/JdbcSqlDriver.java

   1 package csql.jdbc;
   2 import java.util.Properties;
   3 import java.util.StringTokenizer;
   4 import java.sql.Driver;
   5 import java.sql.DriverManager;
   6 import java.sql.SQLException;
   7 import java.sql.Connection;
   8 import java.sql.DriverPropertyInfo;
   9
  10 public final class JdbcSqlDriver extends JSqlError implements Driver, JSqlErrorType
  11 {
  12     static
  13     {
  14         try
  15         {
  16             DriverManager.registerDriver(new JdbcSqlDriver());
  17         }
  18         catch (Exception e)
  19         {
  20             System.out.println ("CSql JDBC Driver: " + e);
  21         }
  22     }
  23     public int mode;
  24     public boolean acceptsURL(String url)
  25     {
  26         //pattern jdbc:csql:
  27         String trimURL = url.toLowerCase().trim();
  28         StringTokenizer tokens = new StringTokenizer(trimURL, ":", false);
  29         int tokenNo =1;
  30         while(tokens.hasMoreTokens())
  31         {
  32             String t = tokens.nextToken().trim();
  33             switch(tokenNo)
  34             {
  35                 case 1:
  36                         if( t.equalsIgnoreCase("jdbc") )
  37                         {
  38                             tokenNo++;
  39                             continue;
  40                         }
  41                         break;
  42                 case 2:
  43                         if( t.equalsIgnoreCase("csql") )
  44                         {
  45                             tokenNo++;
  46                             mode = 1;
  47                             continue;
  48                         }else if (t.equalsIgnoreCase("gateway") )
  49                         {
  50                             tokenNo++;
  51                             mode = 2;
  52                             continue;
  53                         }
  54                         break;
  55                 default:
  56                         tokenNo++;
  57                         break;
  58             }
  59         }
  60         if(tokenNo != 3) return false;
  61         return true;
  62     }
  63     public Connection connect(String connectString, Properties info) throws SQLException
  64     {
  65         String uName, pword;
  66
  67         if( info.isEmpty() )
  68             throw getException(CSQL_AUTHEN_ERR);
  69
  70         if(!acceptsURL(connectString))
  71             throw getException(CSQL_AUTHEN_ERR);
  72
  73         //System.loadLibrary("crypt");
  74         //System.loadLibrary("csql");
  75         //System.loadLibrary("csqlsql");
  76         System.loadLibrary("csqljdbc");
  77
  78         uName = info.getProperty("user");
  79         pword = info.getProperty("password");
  80         JdbcSqlConnection con = new JdbcSqlConnection(mode, uName, pword);
  81         return((Connection) con);
  82     }
  83     public DriverPropertyInfo[] getPropertyInfo (String connectString,
  84             java.util.Properties info ) throws SQLException
  85     {
  86         return null;
  87     }
  88     public int getMajorVersion()
  89     {
  90         return 1;
  91     }
  92     public int getMinorVersion()
  93     {
  94         return 0;
  95     }
  96     public boolean jdbcCompliant()
  97     {
  98         return false;
  99     }
 100 }