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 boolean acceptsURL(String url)
  24     {
  25         //pattern jdbc:csql:
  26         String trimURL = url.toLowerCase().trim();
  27         StringTokenizer tokens = new StringTokenizer(trimURL, ":", false);
  28         int tokenNo =1;
  29         while(tokens.hasMoreTokens())
  30         {
  31             String t = tokens.nextToken().trim();
  32             switch(tokenNo)
  33             {
  34                 case 1:
  35                         if( t.equalsIgnoreCase("jdbc") )
  36                         {
  37                             tokenNo++;
  38                             continue;
  39                         }
  40                         break;
  41                 case 2:
  42                         if( t.equalsIgnoreCase("csql") )
  43                         {
  44                             tokenNo++;
  45                             continue;
  46                         }
  47                         break;
  48                 default:
  49                         tokenNo++;
  50                         break;
  51             }
  52         }
  53         if(tokenNo != 3) return false;
  54         return true;
  55     }
  56     public Connection connect(String connectString, Properties info) throws SQLException
  57     {
  58         String uName, pword;
  59
  60         if( info.isEmpty() )
  61             throw getException(CSQL_AUTHEN_ERR);
  62
  63         if(!acceptsURL(connectString))
  64             throw getException(CSQL_AUTHEN_ERR);
  65
  66         //System.loadLibrary("crypt");
  67         //System.loadLibrary("csql");
  68         //System.loadLibrary("csqlsql");
  69         System.loadLibrary("csqljdbc");
  70
  71         uName = info.getProperty("user");
  72         pword = info.getProperty("password");
  73         JdbcSqlConnection con = new JdbcSqlConnection(uName, pword);
  74         return((Connection) con);
  75     }
  76     public DriverPropertyInfo[] getPropertyInfo (String connectString,
  77             java.util.Properties info ) throws SQLException
  78     {
  79         return null;
  80     }
  81     public int getMajorVersion()
  82     {
  83         return 1;
  84     }
  85     public int getMinorVersion()
  86     {
  87         return 0;
  88     }
  89     public boolean jdbcCompliant()
  90     {
  91         return false;
  92     }
  93 }