archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/adapters/AdapterFactory.java

   1 package com.quantum.adapters;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collections;
   5 import java.util.Comparator;
   6 import java.util.HashMap;
   7 import java.util.List;
   8 import java.util.Map;
   9
  10 /**
  11  * Basically this Factory is a Singleton that is used to return the proper adapter
  12  * @author root
  13  */
  14 public class AdapterFactory {
  15
  16         static class ComparatorImpl implements Comparator {
  17
  18                 public int compare(Object arg0, Object arg1) {
  19                         DatabaseAdapter adapter0 = (DatabaseAdapter) arg0;
  20                         DatabaseAdapter adapter1 = (DatabaseAdapter) arg1;
  21
  22                         if (adapter0 == null && adapter0 != null) {
  23                                 return -1;
  24                         } else if (adapter0 != null && adapter1 == null) {
  25                                 return 1;
  26                         } else if (adapter0 == null && adapter1 == null) {
  27                                 return 0;
  28                         } else {
  29                                 return adapter0.getDisplayName().compareTo(adapter1.getDisplayName());
  30                         }
  31                 }
  32         }
  33
  34         public static final String GENERIC = "GENERIC"; //$NON-NLS-1$
  35         public static final String HSQLDB = "HSQLDB"; //$NON-NLS-1$
  36     public static final String ORACLE = "ORACLE"; //$NON-NLS-1$
  37     public static final String POSTGRES = "POSTGRES"; //$NON-NLS-1$
  38     public static final String MYSQL = "MYSQL"; //$NON-NLS-1$
  39     public static final String DB2 = "DB2"; //$NON-NLS-1$
  40     public static final String DB2AS400 = "DB2AS400"; //$NON-NLS-1$
  41         public static final String ADABASD = "ADABASD"; //$NON-NLS-1$
  42     public static final String INFORMIX = "INFORMIX"; //$NON-NLS-1$
  43         public static final String REDBRICK = "REDBRICK"; //$NON-NLS-1$
  44         public static final String POINTBASE = "POINTBASE"; //$NON-NLS-1$
  45     public static final String SYBASE = "SYBASE"; //$NON-NLS-1$
  46
  47         private static final Map DRIVER_MAP = Collections.synchronizedMap(new HashMap());
  48
  49         static {
  50                 DRIVER_MAP.put("com.ddtek.jdbc.informix.InformixDriver", AdapterFactory.INFORMIX);
  51                 DRIVER_MAP.put("com.ddtek.jdbc.db2.DB2Driver", AdapterFactory.DB2);
  52                 DRIVER_MAP.put("com.ddtek.jdbc.oracle.OracleDriver", AdapterFactory.ORACLE);
  53                 DRIVER_MAP.put("com.ddtek.jdbc.sqlserver.SQLServerDriver", AdapterFactory.GENERIC);
  54                 DRIVER_MAP.put("com.ddtek.jdbc.sybase.SybaseDriver", AdapterFactory.SYBASE);
  55                 DRIVER_MAP.put("com.ibm.as400.access.AS400JDBCDriver", AdapterFactory.DB2AS400);
  56                 DRIVER_MAP.put("COM.ibm.db2.jdbc.app.DB2Driver", AdapterFactory.DB2);
  57                 DRIVER_MAP.put("COM.ibm.db2.jdbc.net.DB2Driver", AdapterFactory.DB2);
  58                 DRIVER_MAP.put("com.inet.ora.OraDriver", AdapterFactory.ORACLE);
  59                 DRIVER_MAP.put("com.inet.drda.DRDADriver", AdapterFactory.DB2);
  60                 DRIVER_MAP.put("com.inet.syb.SybDriver", AdapterFactory.SYBASE);
  61                 DRIVER_MAP.put("com.inet.tds.TdsDriver", AdapterFactory.GENERIC);
  62                 DRIVER_MAP.put("com.informix.jdbc.IfxDriver", AdapterFactory.INFORMIX);
  63                 DRIVER_MAP.put("com.microsoft.jdbc.sqlserver.SQLServerDriver", AdapterFactory.GENERIC);
  64                 DRIVER_MAP.put("com.mysql.jdbc.Driver", AdapterFactory.MYSQL);
  65                 DRIVER_MAP.put("com.pointbase.jdbc.jdbcUniversalDriver", AdapterFactory.POINTBASE);
  66                 DRIVER_MAP.put("com.sybase.jdbcx.SybDriver", AdapterFactory.SYBASE);
  67                 DRIVER_MAP.put("oracle.jdbc.driver.OracleDriver", AdapterFactory.ORACLE);
  68                 DRIVER_MAP.put("org.gjt.mm.mysql.Driver", AdapterFactory.MYSQL);
  69                 DRIVER_MAP.put("org.hsqldb.jdbcDriver", AdapterFactory.HSQLDB);
  70                 DRIVER_MAP.put("org.postgresql.Driver", AdapterFactory.POSTGRES);
  71                 DRIVER_MAP.put("weblogic.jdbc.informix.InformixDriver", AdapterFactory.INFORMIX);
  72                 DRIVER_MAP.put("weblogic.jdbc.sqlserver.SybaseDriver", AdapterFactory.SYBASE);
  73         }
  74
  75     private static AdapterFactory instance;
  76
  77     private Map adapters = Collections.synchronizedMap(new HashMap());
  78
  79     private AdapterFactory() {
  80         addAdapter(new GenericAdapter(GENERIC));
  81         addAdapter(new GenericAdapter(HSQLDB));
  82         addAdapter(new OracleAdapter());
  83         addAdapter(new DB2Adapter());
  84         addAdapter(new DB2AS400Adapter());
  85         addAdapter(new PostgresAdapter());
  86         addAdapter(new GenericAdapter(MYSQL));
  87         addAdapter(new AdabasDAdapter());
  88         addAdapter(new GenericAdapter(INFORMIX));
  89         addAdapter(new RedBrickAdapter());
  90         addAdapter(new GenericAdapter(SYBASE));
  91         addAdapter(new GenericAdapter(POINTBASE));
  92     }
  93     private void addAdapter(DatabaseAdapter adapter) {
  94         this.adapters.put(adapter.getType(), adapter);
  95     }
  96
  97     public static synchronized AdapterFactory getInstance() {
  98         if (instance == null) {
  99                 instance = new AdapterFactory();
 100         }
 101         return instance;
 102     }
 103
 104     public DatabaseAdapter getAdapter(String type){
 105         DatabaseAdapter result = (DatabaseAdapter) this.adapters.get(type);
 106         if (result == null) {
 107                 result = (DatabaseAdapter) this.adapters.get(GENERIC);
 108         }
 109         return result == null ? null : result;
 110     }
 111
 112     public DatabaseAdapter[] getDriverList() {
 113         List list = new ArrayList(this.adapters.values());
 114         Collections.sort(list, new ComparatorImpl());
 115         return (DatabaseAdapter[]) list.toArray(new DatabaseAdapter[list.size()]);
 116     }
 117
 118     /**
 119      *
 120      * @param driverClassName
 121      * @return the adapter type, or null if the adapter type is not known
 122      */
 123     public String getAdapterType(String driverClassName) {
 124         return (String) DRIVER_MAP.get(driverClassName);
 125     }
 126 }