source/mir/storage/Database.java

   1 /*
   2  * put your module comment here
   3  */
   4 package mir.storage;
   5
   6 import  java.sql.*;
   7 import  java.lang.*;
   8 import  java.io.*;
   9 import  java.util.*;
  10 import  java.text.SimpleDateFormat;
  11 import  java.text.ParseException;
  12 import  freemarker.template.*;
  13 import  com.codestudio.sql.*;
  14 import  com.codestudio.util.*;
  15
  16 import  mir.storage.StorageObject;
  17 import  mir.storage.store.*;
  18 import  mir.entity.*;
  19 import  mir.misc.*;
  20
  21
  22 /**
  23  * Diese Klasse implementiert die Zugriffsschicht auf die Datenbank.
  24  * Alle Projektspezifischen Datenbankklassen erben von dieser Klasse.
  25  * In den Unterklassen wird im Minimalfall nur die Tabelle angegeben.
  26  * Im Konfigurationsfile findet sich eine Verweis auf den verwendeten
  27  * Treiber, Host, User und Passwort, ueber den der Zugriff auf die
  28  * Datenbank erfolgt.
  29  *
  30  * @version $Revision: 1.21 $ $Date: 2002/08/04 23:38:22 $
  31  * @author $Author: mh $
  32  *
  33  * $Log: Database.java,v $
  34  * Revision 1.21  2002/08/04 23:38:22  mh
  35  * fix up the webdb_create update stuff
  36  *
  37  * Revision 1.20  2002/07/21 22:32:25  mh
  38  * on insert, the "webdb_lastchange" field should get a value
  39  *
  40  * Revision 1.19  2002/06/29 15:44:46  mh
  41  * make the webdb_create update be called webdb_create_update. it breaks things otherwise. a fixme case I know..
  42  *
  43  * Revision 1.18  2002/06/28 20:42:13  mh
  44  * added necessary bits in templates and Database.java to make webdb_create modifiable. make the conversion from sql/Timestamp to String more robust
  45  *
  46  *
  47  */
  48 public class Database implements StorageObject {
  49
  50         protected String                    theTable;
  51         protected String                    theCoreTable=null;
  52         protected String                    thePKeyName="id";
  53         protected int                       thePKeyType, thePKeyIndex;
  54         protected boolean                   evaluatedMetaData=false;
  55         protected ArrayList                 metadataFields,metadataLabels,
  56                                                                                                                                                         metadataNotNullFields;
  57         protected int[]                     metadataTypes;
  58         protected Class                     theEntityClass;
  59         protected StorageObject             myselfDatabase;
  60         protected SimpleList                popupCache=null;
  61         protected boolean                   hasPopupCache = false;
  62         protected SimpleHash                hashCache=null;
  63         protected boolean                   hasTimestamp=true;
  64         private String                      database_driver, database_url;
  65         private int                         defaultLimit;
  66         protected DatabaseAdaptor           theAdaptor;
  67         protected Logfile                   theLog;
  68         private static Class                GENERIC_ENTITY_CLASS=null,
  69                                       STORABLE_OBJECT_ENTITY_CLASS=null;
  70   private static SimpleHash           POPUP_EMTYLINE=new SimpleHash();
  71   protected static final ObjectStore  o_store=ObjectStore.getInstance();
  72   private SimpleDateFormat _dateFormatterOut =
  73                                     new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  74   private SimpleDateFormat _dateFormatterIn =
  75                                     new SimpleDateFormat("yyyy-MM-dd HH:mm");
  76   private Calendar _cal = new GregorianCalendar();
  77
  78   private static final int _millisPerHour = 60 * 60 * 1000;
  79   private static final int _millisPerMinute = 60 * 1000;
  80
  81         static {
  82                 // always same object saves a little space
  83                 POPUP_EMTYLINE.put("key", ""); POPUP_EMTYLINE.put("value", "--");
  84     try {
  85       GENERIC_ENTITY_CLASS = Class.forName("mir.entity.StorableObjectEntity");
  86       STORABLE_OBJECT_ENTITY_CLASS = Class.forName("mir.entity.StorableObjectEntity");
  87     }
  88     catch (Exception e) {
  89       System.err.println("FATAL: Database.java could not initialize" + e.toString());
  90     }
  91   }
  92
  93
  94         /**
  95          * Kontruktor bekommt den Filenamen des Konfigurationsfiles übergeben.
  96          * Aus diesem file werden <code>Database.Logfile</code>,
  97          * <code>Database.Username</code>,<code>Database.Password</code>,
  98          * <code>Database.Host</code> und <code>Database.Adaptor</code>
  99          * ausgelesen und ein Broker für die Verbindugen zur Datenbank
 100          * erzeugt.
 101          *
 102          * @param   String confFilename Dateiname der Konfigurationsdatei
 103          */
 104         public Database() throws StorageObjectException {
 105                 theLog = Logfile.getInstance(MirConfig.getProp("Home")+
 106                                                                                                                                 MirConfig.getProp("Database.Logfile"));
 107                 String theAdaptorName=MirConfig.getProp("Database.Adaptor");
 108                 defaultLimit = Integer.parseInt(MirConfig.getProp("Database.Limit"));
 109                 try {
 110                         theEntityClass = GENERIC_ENTITY_CLASS;
 111                         theAdaptor = (DatabaseAdaptor)Class.forName(theAdaptorName).newInstance();
 112                 } catch (Exception e){
 113                         theLog.printError("Error in Database() constructor with "+
 114                                                                                                 theAdaptorName + " -- " +e.toString());
 115                         throw new StorageObjectException("Error in Database() constructor with "
 116                                                                                                                                                          +e.toString());
 117                 }
 118                 /*String database_username=MirConfig.getProp("Database.Username");
 119                 String database_password=MirConfig.getProp("Database.Password");
 120                 String database_host=MirConfig.getProp("Database.Host");
 121                 try {
 122                         database_driver=theAdaptor.getDriver();
 123                         database_url=theAdaptor.getURL(database_username,database_password,
 124                                                                                                                                                 database_host);
 125                         theLog.printDebugInfo("adding Broker with: " +database_driver+":"+
 126                                                                                                                 database_url  );
 127                         MirConfig.addBroker(database_driver,database_url);
 128                         //myBroker=MirConfig.getBroker();
 129                 }*/
 130         }
 131
 132         /**
 133          * Liefert die Entity-Klasse zurück, in der eine Datenbankzeile gewrappt
 134          * wird. Wird die Entity-Klasse durch die erbende Klasse nicht überschrieben,
 135          * wird eine mir.entity.GenericEntity erzeugt.
 136          *
 137          * @return Class-Objekt der Entity
 138          */
 139         public java.lang.Class getEntityClass () {
 140                 return  theEntityClass;
 141         }
 142
 143         /**
 144          * Liefert die Standardbeschränkung von select-Statements zurück, also
 145          * wieviel Datensätze per Default selektiert werden.
 146          *
 147          * @return Standard-Anzahl der Datensätze
 148          */
 149         public int getLimit () {
 150                 return  defaultLimit;
 151         }
 152
 153         /**
 154          * Liefert den Namen des Primary-Keys zurück. Wird die Variable nicht von
 155          * der erbenden Klasse überschrieben, so ist der Wert <code>PKEY</code>
 156          * @return Name des Primary-Keys
 157          */
 158         public String getIdName () {
 159                 return  thePKeyName;
 160         }
 161
 162         /**
 163          * Liefert den Namen der Tabelle, auf das sich das Datenbankobjekt bezieht.
 164          *
 165          * @return Name der Tabelle
 166          */
 167         public String getTableName () {
 168                 return  theTable;
 169         }
 170
 171         /*
 172          *   Dient dazu vererbte Tabellen bei objectrelationalen DBMS
 173          *   zu speichern, wenn die id einer Tabelle in der parenttabelle verwaltet
 174          *   wird.
 175          *   @return liefert theCoreTabel als String zurueck, wenn gesetzt, sonst
 176          *    the Table
 177          */
 178
 179         public String getCoreTable(){
 180                 if (theCoreTable!=null) return theCoreTable;
 181                 else return theTable;
 182         }
 183
 184         /**
 185          * Liefert Feldtypen der Felder der Tabelle zurueck (s.a. java.sql.Types)
 186          * @return int-Array mit den Typen der Felder
 187          * @exception StorageObjectException
 188          */
 189         public int[] getTypes () throws StorageObjectException {
 190                 if (metadataTypes == null)
 191                         get_meta_data();
 192                 return  metadataTypes;
 193         }
 194
 195         /**
 196          * Liefert eine Liste der Labels der Tabellenfelder
 197          * @return ArrayListe mit Labeln
 198          * @exception StorageObjectException
 199          */
 200         public ArrayList getLabels () throws StorageObjectException {
 201                 if (metadataLabels == null)
 202                         get_meta_data();
 203                 return  metadataLabels;
 204         }
 205
 206         /**
 207          * Liefert eine Liste der Felder der Tabelle
 208          * @return ArrayList mit Feldern
 209          * @exception StorageObjectException
 210          */
 211         public ArrayList getFields () throws StorageObjectException {
 212                 if (metadataFields == null)
 213                         get_meta_data();
 214                 return  metadataFields;
 215         }
 216
 217
 218         /*
 219          *   Gets value out of ResultSet according to type and converts to String
 220          *   @param inValue  Wert aus ResultSet.
 221          *   @param aType  Datenbanktyp.
 222          *   @return liefert den Wert als String zurueck. Wenn keine Umwandlung moeglich
 223          *           dann /unsupported value/
 224          */
 225         private String getValueAsString (ResultSet rs, int valueIndex, int aType) throws StorageObjectException {
 226                 String outValue = null;
 227                 if (rs != null) {
 228                         try {
 229                                 switch (aType) {
 230                                         case java.sql.Types.BIT:
 231                                                 outValue = (rs.getBoolean(valueIndex) == true) ? "1" : "0";
 232                                                 break;
 233                                         case java.sql.Types.INTEGER:case java.sql.Types.SMALLINT:case java.sql.Types.TINYINT:case java.sql.Types.BIGINT:
 234                                                 int out = rs.getInt(valueIndex);
 235                                                 if (!rs.wasNull())
 236                                                         outValue = new Integer(out).toString();
 237                                                 break;
 238                                         case java.sql.Types.NUMERIC:
 239             /** @todo Numeric can be float or double depending upon
 240              *  metadata.getScale() / especially with oracle */
 241                                                 long outl = rs.getLong(valueIndex);
 242                                                 if (!rs.wasNull())
 243                                                         outValue = new Long(outl).toString();
 244                                                 break;
 245                                         case java.sql.Types.REAL:
 246                                                 float tempf = rs.getFloat(valueIndex);
 247                                                 if (!rs.wasNull()) {
 248                                                         tempf *= 10;
 249                                                         tempf += 0.5;
 250                                                         int tempf_int = (int)tempf;
 251                                                         tempf = (float)tempf_int;
 252                                                         tempf /= 10;
 253                                                         outValue = "" + tempf;
 254                                                         outValue = outValue.replace('.', ',');
 255                                                 }
 256                                                 break;
 257                                         case java.sql.Types.DOUBLE:
 258                                                 double tempd = rs.getDouble(valueIndex);
 259                                                 if (!rs.wasNull()) {
 260                                                         tempd *= 10;
 261                                                         tempd += 0.5;
 262                                                         int tempd_int = (int)tempd;
 263                                                         tempd = (double)tempd_int;
 264                                                         tempd /= 10;
 265                                                         outValue = "" + tempd;
 266                                                         outValue = outValue.replace('.', ',');
 267                                                 }
 268                                                 break;
 269                                         case java.sql.Types.CHAR:case java.sql.Types.VARCHAR:case java.sql.Types.LONGVARCHAR:
 270                                                 outValue = rs.getString(valueIndex);
 271                                                 //if (outValue != null)
 272                                                         //outValue = StringUtil.encodeHtml(StringUtil.unquote(outValue));
 273                                                 break;
 274                                         case java.sql.Types.LONGVARBINARY:
 275                                                 outValue = rs.getString(valueIndex);
 276                                                 //if (outValue != null)
 277                                                 //outValue = StringUtil.encodeHtml(StringUtil.unquote(outValue));
 278                                                 break;
 279                                         case java.sql.Types.TIMESTAMP:
 280             // it's important to use Timestamp here as getting it
 281             // as a string is undefined and is only there for debugging
 282             // according to the API. we can make it a string through formatting.
 283             // -mh
 284                                           Timestamp timestamp = (rs.getTimestamp(valueIndex));
 285             if(!rs.wasNull()) {
 286               java.util.Date date = new java.util.Date(timestamp.getTime());
 287               outValue = _dateFormatterOut.format(date);
 288               _cal.setTime(date);
 289               int offset = _cal.get(Calendar.ZONE_OFFSET)+
 290                             _cal.get(Calendar.DST_OFFSET);
 291               String tzOffset = StringUtil.zeroPaddingNumber(
 292                                                      offset/_millisPerHour,2,2);
 293               outValue = outValue+"+"+tzOffset;
 294             }
 295                                                 break;
 296                                         default:
 297                                                 outValue = "<unsupported value>";
 298                                                 theLog.printWarning("Unsupported Datatype: at " + valueIndex +
 299                                                                 " (" + aType + ")");
 300                                 }
 301                         } catch (SQLException e) {
 302                                 throw  new StorageObjectException("Could not get Value out of Resultset -- "
 303                                                 + e.toString());
 304                         }
 305                 }
 306                 return  outValue;
 307         }
 308
 309         /*
 310          *   select-Operator um einen Datensatz zu bekommen.
 311          *   @param id Primaerschluessel des Datensatzes.
 312          *   @return liefert EntityObject des gefundenen Datensatzes oder null.
 313          */
 314         public Entity selectById(String id)     throws StorageObjectException
 315   {
 316                 if (id==null||id.equals(""))
 317                         throw new StorageObjectException("id war null");
 318
 319     // ask object store for object
 320     if ( StoreUtil.implementsStorableObject(theEntityClass) ) {
 321       String uniqueId = id;
 322       if ( theEntityClass.equals(StorableObjectEntity.class) )
 323         uniqueId+="@"+theTable;
 324       StoreIdentifier search_sid = new StoreIdentifier(theEntityClass, uniqueId);
 325       theLog.printDebugInfo("CACHE: (dbg) looking for sid " + search_sid.toString());
 326       Entity hit = (Entity)o_store.use(search_sid);
 327       if ( hit!=null ) return hit;
 328     }
 329
 330                 Statement stmt=null;Connection con=getPooledCon();
 331                 Entity returnEntity=null;
 332                 try {
 333                         ResultSet rs;
 334                         /** @todo better prepared statement */
 335                         String selectSql = "select * from " + theTable + " where " + thePKeyName + "=" + id;
 336                         stmt = con.createStatement();
 337                         rs = executeSql(stmt, selectSql);
 338                         if (rs != null) {
 339                                 if (evaluatedMetaData==false) evalMetaData(rs.getMetaData());
 340                                 if (rs.next())
 341                                         returnEntity = makeEntityFromResultSet(rs);
 342                                 else theLog.printDebugInfo("Keine daten fuer id: " + id + "in Tabelle" + theTable);
 343                                 rs.close();
 344                         }
 345                         else {
 346                                 theLog.printDebugInfo("No Data for Id " + id + " in Table " + theTable);
 347                         }
 348                 }
 349                 catch (SQLException sqe){
 350                         throwSQLException(sqe,"selectById"); return null;
 351                 }
 352                 catch (NumberFormatException e) {
 353                         theLog.printError("ID ist keine Zahl: " + id);
 354                 }
 355                 finally { freeConnection(con,stmt); }
 356
 357                 /** @todo OS: Entity should be saved in ostore */
 358                 return returnEntity;
 359         }
 360
 361
 362         /**
 363          *   select-Operator um Datensaetze zu bekommen, die key = value erfuellen.
 364          *   @param key  Datenbankfeld der Bedingung.
 365          *   @param value  Wert die der key anehmen muss.
 366          *   @return EntityList mit den gematchten Entities
 367          */
 368         public EntityList selectByFieldValue(String aField, String aValue)
 369                 throws StorageObjectException
 370         {
 371                 return selectByFieldValue(aField, aValue, 0);
 372         }
 373
 374         /**
 375          *   select-Operator um Datensaetze zu bekommen, die key = value erfuellen.
 376          *   @param key  Datenbankfeld der Bedingung.
 377          *   @param value  Wert die der key anehmen muss.
 378          *   @param offset  Gibt an ab welchem Datensatz angezeigt werden soll.
 379          *   @return EntityList mit den gematchten Entities
 380          */
 381         public EntityList selectByFieldValue(String aField, String aValue, int offset)
 382                 throws StorageObjectException
 383         {
 384                 return selectByWhereClause(aField + "=" + aValue, offset);
 385         }
 386
 387
 388         /**
 389          * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.
 390          * Also offset wird der erste Datensatz genommen.
 391          *
 392          * @param wc where-Clause
 393          * @return EntityList mit den gematchten Entities
 394          * @exception StorageObjectException
 395          */
 396         public EntityList selectByWhereClause(String where)
 397                 throws StorageObjectException
 398         {
 399                 return selectByWhereClause(where, 0);
 400         }
 401
 402
 403         /**
 404          * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.
 405          * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
 406          *
 407          * @param wc where-Clause
 408          * @param offset ab welchem Datensatz.
 409          * @return EntityList mit den gematchten Entities
 410          * @exception StorageObjectException
 411          */
 412         public EntityList selectByWhereClause(String whereClause, int offset)
 413                 throws StorageObjectException
 414         {
 415                 return selectByWhereClause(whereClause, null, offset);
 416         }
 417
 418
 419         /**
 420          * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.
 421          * Also offset wird der erste Datensatz genommen.
 422          * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
 423          *
 424          * @param wc where-Clause
 425          * @param ob orderBy-Clause
 426          * @return EntityList mit den gematchten Entities
 427          * @exception StorageObjectException
 428          */
 429
 430         public EntityList selectByWhereClause(String where, String order)
 431                 throws StorageObjectException {
 432                 return selectByWhereClause(where, order, 0);
 433         }
 434
 435
 436         /**
 437          * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.
 438          * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
 439          *
 440          * @param wc where-Clause
 441          * @param ob orderBy-Clause
 442          * @param offset ab welchem Datensatz
 443          * @return EntityList mit den gematchten Entities
 444          * @exception StorageObjectException
 445          */
 446
 447         public EntityList selectByWhereClause(String whereClause, String orderBy, int offset)
 448                 throws StorageObjectException {
 449                 return selectByWhereClause(whereClause, orderBy, offset, defaultLimit);
 450         }
 451
 452
 453         /**
 454          * select-Operator liefert eine EntityListe mit den gematchten Datensätzen zurück.
 455          * @param wc where-Clause
 456          * @param ob orderBy-Clause
 457          * @param offset ab welchem Datensatz
 458          * @param limit wieviele Datensätze
 459          * @return EntityList mit den gematchten Entities
 460          * @exception StorageObjectException
 461          */
 462
 463         public EntityList selectByWhereClause(String wc, String ob, int offset, int limit)
 464                 throws StorageObjectException
 465   {
 466
 467     // check o_store for entitylist
 468     if ( StoreUtil.implementsStorableObject(theEntityClass) ) {
 469       StoreIdentifier search_sid =
 470         new StoreIdentifier( theEntityClass,
 471                              StoreContainerType.STOC_TYPE_ENTITYLIST,
 472                              StoreUtil.getEntityListUniqueIdentifierFor(theTable,wc,ob,offset,limit) );
 473       EntityList hit = (EntityList)o_store.use(search_sid);
 474       if ( hit!=null ) {
 475         theLog.printDebugInfo("CACHE (hit): " + search_sid.toString());
 476         return hit;
 477       }
 478     }
 479
 480                 // local
 481                 EntityList    theReturnList=null;
 482                 Connection    con=null; Statement stmt=null;
 483                 ResultSet     rs;
 484                 int           offsetCount = 0, count=0;
 485
 486                 // build sql-statement
 487
 488                 /** @todo count sql string should only be assembled if we really count
 489                  *  see below at the end of method //rk */
 490
 491                 if (wc != null && wc.length() == 0) {
 492                         wc = null;
 493                 }
 494                 StringBuffer countSql = new StringBuffer("select count(*) from ").append(theTable);
 495                 StringBuffer selectSql = new StringBuffer("select * from ").append(theTable);
 496                 if (wc != null) {
 497                         selectSql.append(" where ").append(wc);
 498                         countSql.append(" where ").append(wc);
 499                 }
 500                 if (ob != null && !(ob.length() == 0)) {
 501                         selectSql.append(" order by ").append(ob);
 502                 }
 503                 if (theAdaptor.hasLimit()) {
 504                         if (limit > -1 && offset > -1) {
 505                                 selectSql.append(" limit ");
 506                                 if (theAdaptor.reverseLimit()) {
 507                                         selectSql.append(limit).append(",").append(offset);
 508                                 }
 509                                 else {
 510                                         selectSql.append(offset).append(",").append(limit);
 511                                 }
 512                         }
 513                 }
 514
 515                 // execute sql
 516                 try {
 517                         con = getPooledCon();
 518                         stmt = con.createStatement();
 519
 520                         // selecting...
 521                         rs = executeSql(stmt, selectSql.toString());
 522                         if (rs != null) {
 523                                 if (!evaluatedMetaData) evalMetaData(rs.getMetaData());
 524
 525                                 theReturnList = new EntityList();
 526                                 Entity theResultEntity;
 527                                 while (rs.next()) {
 528                                         theResultEntity = makeEntityFromResultSet(rs);
 529                                         theReturnList.add(theResultEntity);
 530                                         offsetCount++;
 531                                 }
 532                                 rs.close();
 533                         }
 534
 535                         // making entitylist infos
 536                         if (!(theAdaptor.hasLimit())) count = offsetCount;
 537
 538                         if (theReturnList != null) {
 539                                 // now we decide if we have to know an overall count...
 540                                 count=offsetCount;
 541                                 if (limit > -1 && offset > -1) {
 542                                         if (offsetCount==limit) {
 543                                                 /** @todo counting should be deffered to entitylist
 544                                                  *  getSize() should be used */
 545                                                 rs = executeSql(stmt, countSql.toString());
 546                                                 if (rs != null) {
 547                                                         if ( rs.next() ) count = rs.getInt(1);
 548                                                         rs.close();
 549                                                 }
 550                                                 else theLog.printError("Could not count: " + countSql);
 551                                         }
 552                                 }
 553                                 theReturnList.setCount(count);
 554                                 theReturnList.setOffset(offset);
 555                                 theReturnList.setWhere(wc);
 556                                 theReturnList.setOrder(ob);
 557         theReturnList.setStorage(this);
 558         theReturnList.setLimit(limit);
 559                                 if ( offset >= limit )
 560                                         theReturnList.setPrevBatch(offset - limit);
 561                                 if ( offset+offsetCount < count )
 562                                         theReturnList.setNextBatch(offset + limit);
 563         if ( StoreUtil.implementsStorableObject(theEntityClass) ) {
 564           StoreIdentifier sid=theReturnList.getStoreIdentifier();
 565           theLog.printDebugInfo("CACHE (add): " + sid.toString());
 566           o_store.add(sid);
 567         }
 568                         }
 569                 }
 570                 catch (SQLException sqe) { throwSQLException(sqe, "selectByWhereClause"); }
 571                 finally { freeConnection(con, stmt); }
 572
 573                 return  theReturnList;
 574         }
 575
 576
 577         /**
 578          *  Bastelt aus einer Zeile der Datenbank ein EntityObjekt.
 579          *
 580          *  @param rs Das ResultSetObjekt.
 581          *  @return Entity Die Entity.
 582          */
 583         private Entity makeEntityFromResultSet (ResultSet rs)
 584                 throws StorageObjectException
 585         {
 586                 /** @todo OS: get Pkey from ResultSet and consult ObjectStore */
 587                 HashMap theResultHash = new HashMap();
 588                 String theResult = null;
 589                 int theType;
 590                 Entity returnEntity = null;
 591                 try {
 592                         int size = metadataFields.size();
 593                         for (int i = 0; i < size; i++) {
 594                                 // alle durchlaufen bis nix mehr da
 595                                 theType = metadataTypes[i];
 596                                 if (theType == java.sql.Types.LONGVARBINARY) {
 597                                         InputStreamReader is = (InputStreamReader)rs.getCharacterStream(i + 1);
 598                                         if (is != null) {
 599                                                 char[] data = new char[32768];
 600                                                 StringBuffer theResultString = new StringBuffer();
 601                                                 int len;
 602                                                 while ((len = is.read(data)) > 0) {
 603                                                         theResultString.append(data, 0, len);
 604                                                 }
 605                                                 is.close();
 606                                                 theResult = theResultString.toString();
 607                                         }
 608                                         else {
 609                                                 theResult = null;
 610                                         }
 611                                 }
 612                                 else {
 613                                         theResult = getValueAsString(rs, (i + 1), theType);
 614                                 }
 615                                 if (theResult != null) {
 616                                         theResultHash.put(metadataFields.get(i), theResult);
 617                                 }
 618                         }
 619       if (theEntityClass != null) {
 620         returnEntity = (Entity)theEntityClass.newInstance();
 621         returnEntity.setValues(theResultHash);
 622         returnEntity.setStorage(myselfDatabase);
 623         if ( returnEntity instanceof StorableObject ) {
 624           theLog.printDebugInfo("CACHE: ( in) " + returnEntity.getId() + " :"+theTable);
 625           o_store.add(((StorableObject)returnEntity).getStoreIdentifier());
 626         }
 627       } else {
 628         throwStorageObjectException("Internal Error: theEntityClass not set!");
 629       }
 630                 } catch (IllegalAccessException e) {
 631                         throwStorageObjectException("Kein Zugriff! -- " + e.toString());
 632                 } catch (IOException e) {
 633                         throwStorageObjectException("IOException! -- " + e.toString());
 634                 } catch (InstantiationException e) {
 635                         throwStorageObjectException("Keine Instantiiierung! -- " + e.toString());
 636                 } catch (SQLException sqe) {
 637                         throwSQLException(sqe, "makeEntityFromResultSet");
 638                         return  null;
 639                 }
 640                 return  returnEntity;
 641         }
 642
 643         /**
 644          * insert-Operator: fügt eine Entity in die Tabelle ein. Eine Spalte WEBDB_CREATE
 645          * wird automatisch mit dem aktuellen Datum gefuellt.
 646          *
 647          * @param theEntity
 648          * @return der Wert des Primary-keys der eingefügten Entity
 649          */
 650         public String insert (Entity theEntity) throws StorageObjectException {
 651                 //cache
 652                 invalidatePopupCache();
 653
 654     // invalidating all EntityLists corresponding with theEntityClass
 655     if ( StoreUtil.implementsStorableObject(theEntityClass) ) {
 656       StoreContainerType stoc_type =
 657         StoreContainerType.valueOf( theEntityClass,
 658                                     StoreContainerType.STOC_TYPE_ENTITYLIST);
 659       o_store.invalidate(stoc_type);
 660     }
 661
 662                 String returnId = null;
 663                 Connection con = null; PreparedStatement pstmt = null;
 664
 665     try {
 666                         ArrayList streamedInput = theEntity.streamedInput();
 667                         StringBuffer f = new StringBuffer();
 668                         StringBuffer v = new StringBuffer();
 669                         String aField, aValue;
 670                         boolean firstField = true;
 671                         // make sql-string
 672                         for (int i = 0; i < getFields().size(); i++) {
 673                                 aField = (String)getFields().get(i);
 674                                 if (!aField.equals(thePKeyName)) {
 675                                         aValue = null;
 676                                         // sonderfaelle
 677                                         if (aField.equals("webdb_create") ||
 678               aField.equals("webdb_lastchange")) {
 679                                                 aValue = "NOW()";
 680                                         }
 681                                         else {
 682                                                 if (streamedInput != null && streamedInput.contains(aField)) {
 683                                                         aValue = "?";
 684                                                 }
 685                                                 else {
 686                                                         if (theEntity.hasValueForField(aField)) {
 687                                                                 aValue = "'" + StringUtil.quote((String)theEntity.getValue(aField))
 688                                                                                 + "'";
 689                                                         }
 690                                                 }
 691                                         }
 692                                         // wenn Wert gegeben, dann einbauen
 693                                         if (aValue != null) {
 694                                                 if (firstField == false) {
 695                                                         f.append(",");
 696                                                         v.append(",");
 697                                                 }
 698                                                 else {
 699                                                         firstField = false;
 700                                                 }
 701                                                 f.append(aField);
 702                                                 v.append(aValue);
 703                                         }
 704                                 }
 705                         }         // end for
 706                         // insert into db
 707                         StringBuffer sqlBuf = new StringBuffer("insert into ").append(theTable).append("(").append(f).append(") values (").append(v).append(")");
 708                         String sql = sqlBuf.toString();
 709                         theLog.printInfo("INSERT: " + sql);
 710                         con = getPooledCon();
 711                         con.setAutoCommit(false);
 712                         pstmt = con.prepareStatement(sql);
 713                         if (streamedInput != null) {
 714                                 for (int i = 0; i < streamedInput.size(); i++) {
 715                                         String inputString = (String)theEntity.getValue((String)streamedInput.get(i));
 716                                         pstmt.setBytes(i + 1, inputString.getBytes());
 717                                 }
 718                         }
 719                         int ret = pstmt.executeUpdate();
 720                         if(ret == 0){
 721                                 //insert failed
 722                                 return null;
 723                         }
 724                         pstmt = con.prepareStatement(theAdaptor.getLastInsertSQL((Database)myselfDatabase));
 725                         ResultSet rs = pstmt.executeQuery();
 726                         rs.next();
 727                         returnId = rs.getString(1);
 728                         theEntity.setId(returnId);
 729                 } catch (SQLException sqe) {
 730                         throwSQLException(sqe, "insert");
 731                 } finally {
 732                         try {
 733                                 con.setAutoCommit(true);
 734                         } catch (Exception e) {
 735                                 ;
 736                         }
 737                         freeConnection(con, pstmt);
 738                 }
 739     /** @todo store entity in o_store */
 740                 return  returnId;
 741         }
 742
 743         /**
 744          * update-Operator: aktualisiert eine Entity. Eine Spalte WEBDB_LASTCHANGE
 745          * wird automatisch mit dem aktuellen Datum gefuellt.
 746          *
 747          * @param theEntity
 748          */
 749         public void update (Entity theEntity) throws StorageObjectException
 750   {
 751                 Connection con = null; PreparedStatement pstmt = null;
 752                 /** @todo this is stupid: why do we prepare statement, when we
 753                  *  throw it away afterwards. should be regular statement
 754                  *  update/insert could better be one routine called save()
 755                  *  that chooses to either insert or update depending if we
 756                  *  have a primary key in the entity. i don't know if we
 757                  *  still need the streamed input fields. // rk  */
 758
 759                 /** @todo extension: check if Entity did change, otherwise we don't need
 760      *  the roundtrip to the database */
 761
 762                 /** invalidating corresponding entitylists in o_store*/
 763     if ( StoreUtil.implementsStorableObject(theEntityClass) ) {
 764       StoreContainerType stoc_type =
 765         StoreContainerType.valueOf( theEntityClass,
 766                                     StoreContainerType.STOC_TYPE_ENTITYLIST);
 767       o_store.invalidate(stoc_type);
 768     }
 769
 770                 ArrayList streamedInput = theEntity.streamedInput();
 771                 String id = theEntity.getId();
 772                 String aField;
 773                 StringBuffer fv = new StringBuffer();
 774                 boolean firstField = true;
 775                 //cache
 776                 invalidatePopupCache();
 777                 // build sql statement
 778                 for (int i = 0; i < getFields().size(); i++) {
 779                         aField = (String)metadataFields.get(i);
 780                         // only normal cases
 781                         if (!(aField.equals(thePKeyName) || aField.equals("webdb_create") ||
 782                                         aField.equals("webdb_lastchange") || (streamedInput != null && streamedInput.contains(aField)))) {
 783                                 if (theEntity.hasValueForField(aField)) {
 784                                         if (firstField == false) {
 785                                                 fv.append(", ");
 786                                         }
 787                                         else {
 788                                                 firstField = false;
 789                                         }
 790                                         fv.append(aField).append("='").append(StringUtil.quote((String)theEntity.getValue(aField))).append("'");
 791                                 }
 792                         }
 793                 }
 794                 StringBuffer sql = new StringBuffer("update ").append(theTable).append(" set ").append(fv);
 795                 // exceptions
 796                 if (metadataFields.contains("webdb_lastchange")) {
 797                         sql.append(",webdb_lastchange=NOW()");
 798                 }
 799     // special case: the webdb_create requires the field in yyyy-mm-dd HH:mm
 800     // format so anything extra will be ignored. -mh
 801                 if (metadataFields.contains("webdb_create") &&
 802         theEntity.hasValueForField("webdb_create")) {
 803       // minimum of 10 (yyyy-mm-dd)...
 804       if (theEntity.getValue("webdb_create").length() >= 10) {
 805         String dateString = theEntity.getValue("webdb_create");
 806         // if only 10, then add 00:00 so it doesn't throw a ParseException
 807         if (dateString.length() == 10)
 808           dateString=dateString+" 00:00";
 809
 810         // TimeStamp stuff
 811         try {
 812           java.util.Date d = _dateFormatterIn.parse(dateString);
 813           Timestamp tStamp = new Timestamp(d.getTime());
 814           sql.append(",webdb_create='"+tStamp.toString()+"'");
 815         } catch (ParseException e) {
 816           throw new StorageObjectException(e.toString());
 817         }
 818       }
 819                 }
 820                 if (streamedInput != null) {
 821                         for (int i = 0; i < streamedInput.size(); i++) {
 822                                 sql.append(",").append(streamedInput.get(i)).append("=?");
 823                         }
 824                 }
 825                 sql.append(" where id=").append(id);
 826                 theLog.printInfo("UPDATE: " + sql);
 827                 // execute sql
 828                 try {
 829                         con = getPooledCon();
 830                         con.setAutoCommit(false);
 831                         pstmt = con.prepareStatement(sql.toString());
 832                         if (streamedInput != null) {
 833                                 for (int i = 0; i < streamedInput.size(); i++) {
 834                                         String inputString = theEntity.getValue((String)streamedInput.get(i));
 835                                         pstmt.setBytes(i + 1, inputString.getBytes());
 836                                 }
 837                         }
 838                         pstmt.executeUpdate();
 839                 } catch (SQLException sqe) {
 840                         throwSQLException(sqe, "update");
 841                 } finally {
 842                         try {
 843                                 con.setAutoCommit(true);
 844                         } catch (Exception e) {
 845                                 ;
 846                         }
 847                         freeConnection(con, pstmt);
 848                 }
 849         }
 850
 851         /*
 852          *   delete-Operator
 853          *   @param id des zu loeschenden Datensatzes
 854          *   @return boolean liefert true zurueck, wenn loeschen erfolgreich war.
 855          */
 856         public boolean delete (String id) throws StorageObjectException {
 857
 858                 invalidatePopupCache();
 859     // ostore send notification
 860     if ( StoreUtil.implementsStorableObject(theEntityClass) ) {
 861       String uniqueId = id;
 862       if ( theEntityClass.equals(StorableObjectEntity.class) )
 863         uniqueId+="@"+theTable;
 864                         theLog.printInfo("CACHE: (del) " + id);
 865                         StoreIdentifier search_sid =
 866         new StoreIdentifier(theEntityClass, StoreContainerType.STOC_TYPE_ENTITY, uniqueId);
 867       o_store.invalidate(search_sid);
 868                 }
 869
 870                 /** @todo could be prepared Statement */
 871                 Statement stmt = null; Connection con = null;
 872                 int res = 0;
 873                 String sql="delete from "+theTable+" where "+thePKeyName+"='"+id+"'";
 874                 theLog.printInfo("DELETE " + sql);
 875                 try {
 876                         con = getPooledCon(); stmt = con.createStatement();
 877                         res = stmt.executeUpdate(sql);
 878                 }
 879     catch (SQLException sqe) { throwSQLException(sqe, "delete"); }
 880     finally { freeConnection(con, stmt); }
 881
 882                 return  (res > 0) ? true : false;
 883         }
 884
 885         /* noch nicht implementiert.
 886          * @return immer false
 887          */
 888         public boolean delete (EntityList theEntityList) {
 889                 invalidatePopupCache();
 890                 return  false;
 891         }
 892
 893         /**
 894          * Diese Methode sollte ueberschrieben werden, wenn fuer die abgeleitete Database-Klasse
 895          * eine SimpleList mit Standard-Popupdaten erzeugt werden koennen soll.
 896          * @return null
 897          */
 898         public SimpleList getPopupData () throws StorageObjectException {
 899                 return  null;
 900         }
 901
 902         /**
 903          *  Holt Daten fuer Popups.
 904          *  @param name  Name des Feldes.
 905          *  @param hasNullValue  Wenn true wird eine leerer  Eintrag fuer die Popups erzeugt.
 906          *  @return SimpleList Gibt freemarker.template.SimpleList zurueck.
 907          */
 908         public SimpleList getPopupData (String name, boolean hasNullValue)
 909                 throws StorageObjectException {
 910                 return  getPopupData(name, hasNullValue, null);
 911         }
 912
 913         /**
 914          *  Holt Daten fuer Popups.
 915          *  @param name  Name des Feldes.
 916          *  @param hasNullValue  Wenn true wird eine leerer  Eintrag fuer die Popups erzeugt.
 917          *  @param where  Schraenkt die Selektion der Datensaetze ein.
 918          *  @return SimpleList Gibt freemarker.template.SimpleList zurueck.
 919          */
 920         public SimpleList getPopupData (String name, boolean hasNullValue, String where) throws StorageObjectException {
 921          return  getPopupData(name, hasNullValue, where, null);
 922         }
 923
 924         /**
 925          *  Holt Daten fuer Popups.
 926          *  @param name  Name des Feldes.
 927          *  @param hasNullValue  Wenn true wird eine leerer  Eintrag fuer die Popups erzeugt.
 928          *  @param where  Schraenkt die Selektion der Datensaetze ein.
 929          *  @param order  Gibt ein Feld als Sortierkriterium an.
 930          *  @return SimpleList Gibt freemarker.template.SimpleList zurueck.
 931          */
 932         public SimpleList getPopupData (String name, boolean hasNullValue, String where, String order) throws StorageObjectException {
 933                 // caching
 934                 if (hasPopupCache && popupCache != null)
 935                         return  popupCache;
 936                 SimpleList simpleList = null;
 937                 Connection con = null;
 938                 Statement stmt = null;
 939                 // build sql
 940                 StringBuffer sql = new StringBuffer("select ").append(thePKeyName)
 941                                                                                                                                                                 .append(",").append(name).append(" from ")
 942                                                                                                                                                                 .append(theTable);
 943                 if (where != null && !(where.length() == 0))
 944                         sql.append(" where ").append(where);
 945                 sql.append(" order by ");
 946                 if (order != null && !(order.length() == 0))
 947                         sql.append(order);
 948                 else
 949                         sql.append(name);
 950                 // execute sql
 951                 try {
 952                         con = getPooledCon();
 953                 } catch (Exception e) {
 954                         throw new StorageObjectException(e.toString());
 955                 }
 956                 try {
 957                         stmt = con.createStatement();
 958                         ResultSet rs = executeSql(stmt, sql.toString());
 959
 960                         if (rs != null) {
 961                                 if (!evaluatedMetaData) get_meta_data();
 962                                 simpleList = new SimpleList();
 963                                 // if popup has null-selector
 964                                 if (hasNullValue) simpleList.add(POPUP_EMTYLINE);
 965
 966                                 SimpleHash popupDict;
 967                                 while (rs.next()) {
 968                                         popupDict = new SimpleHash();
 969                                         popupDict.put("key", getValueAsString(rs, 1, thePKeyType));
 970                                         popupDict.put("value", rs.getString(2));
 971                                         simpleList.add(popupDict);
 972                                 }
 973                                 rs.close();
 974                         }
 975                 } catch (Exception e) {
 976                         theLog.printError("getPopupData: "+e.toString());
 977                         throw new StorageObjectException(e.toString());
 978                 } finally {
 979                         freeConnection(con, stmt);
 980                 }
 981
 982                 if (hasPopupCache) popupCache = simpleList;
 983                 return  simpleList;
 984         }
 985
 986         /**
 987          * Liefert alle Daten der Tabelle als SimpleHash zurueck. Dies wird verwandt,
 988          * wenn in den Templates ein Lookup-Table benoetigt wird. Sollte nur bei kleinen
 989          * Tabellen Verwendung finden.
 990          * @return SimpleHash mit den Tabellezeilen.
 991          */
 992         public SimpleHash getHashData () {
 993                 /** @todo dangerous! this should have a flag to be enabled, otherwise
 994                  *  very big Hashes could be returned */
 995                 if (hashCache == null) {
 996                         try {
 997                                 hashCache = HTMLTemplateProcessor.makeSimpleHash(selectByWhereClause("",
 998                                                 -1));
 999                         } catch (StorageObjectException e) {
1000                                 theLog.printDebugInfo(e.toString());
1001                         }
1002                 }
1003                 return  hashCache;
1004         }
1005
1006         /* invalidates the popupCache
1007          */
1008         protected void invalidatePopupCache () {
1009                 /** @todo  invalidates toooo much */
1010                 popupCache = null;
1011                 hashCache = null;
1012         }
1013
1014         /**
1015          * Diese Methode fuehrt den Sqlstring <i>sql</i> aus und timed im Logfile.
1016          * @param stmt Statemnt
1017          * @param sql Sql-String
1018          * @return ResultSet
1019          * @exception StorageObjectException
1020          */
1021         public ResultSet executeSql (Statement stmt, String sql)
1022                 throws StorageObjectException, SQLException
1023         {
1024                 long startTime = System.currentTimeMillis();
1025                 ResultSet rs;
1026                 try {
1027                         rs = stmt.executeQuery(sql);
1028                         theLog.printInfo((System.currentTimeMillis() - startTime) + "ms. for: "
1029                                 + sql);
1030                 }
1031                 catch (SQLException e)
1032                 {
1033                         theLog.printDebugInfo("Failed: " + (System.currentTimeMillis()
1034                                                                                                                 - startTime) + "ms. for: "+ sql);
1035                         throw e;
1036                 }
1037
1038                 return  rs;
1039         }
1040
1041         /**
1042          * Fuehrt Statement stmt aus und liefert Resultset zurueck. Das SQL-Statment wird
1043          * getimed und geloggt.
1044          * @param stmt PreparedStatement mit der SQL-Anweisung
1045          * @return Liefert ResultSet des Statements zurueck.
1046          * @exception StorageObjectException, SQLException
1047          */
1048         public ResultSet executeSql (PreparedStatement stmt)
1049                 throws StorageObjectException, SQLException {
1050
1051                 long startTime = (new java.util.Date()).getTime();
1052                 ResultSet rs = stmt.executeQuery();
1053                 theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms.");
1054                 return  rs;
1055         }
1056
1057                 /**
1058          * returns the number of rows in the table
1059          */
1060         public int getSize(String where)
1061                 throws SQLException,StorageObjectException
1062         {
1063                 long  startTime = System.currentTimeMillis();
1064                 String sql = "SELECT count(*) FROM "+ theTable + " where " + where;
1065                 Connection con = null;
1066                 Statement stmt = null;
1067                 int result = 0;
1068
1069                 try {
1070                         con = getPooledCon();
1071                         stmt = con.createStatement();
1072                         ResultSet rs = executeSql(stmt,sql);
1073                         while(rs.next()){
1074                                 result = rs.getInt(1);
1075                         }
1076                 } catch (SQLException e) {
1077                         theLog.printError(e.toString());
1078                 } finally {
1079                         freeConnection(con,stmt);
1080                 }
1081                 //theLog.printInfo(theTable + " has "+ result +" rows where " + where);
1082                 theLog.printInfo((System.currentTimeMillis() - startTime) + "ms. for: "
1083                                                                                 + sql);
1084                 return result;
1085         }
1086
1087         public int executeUpdate(Statement stmt, String sql)
1088                 throws StorageObjectException, SQLException
1089         {
1090                 int rs;
1091                 long  startTime = (new java.util.Date()).getTime();
1092                 try
1093                 {
1094                         rs = stmt.executeUpdate(sql);
1095                         theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms. for: "
1096                                                                                                 + sql);
1097                 }
1098                 catch (SQLException e)
1099                 {
1100                         theLog.printDebugInfo("Failed: " + (new java.util.Date().getTime()
1101                                                                                                                 - startTime) + "ms. for: "+ sql);
1102                         throw e;
1103                 }
1104                 return rs;
1105         }
1106
1107         public int executeUpdate(String sql)
1108                 throws StorageObjectException, SQLException
1109         {
1110                 int result=-1;
1111                 long  startTime = (new java.util.Date()).getTime();
1112                 Connection con=null;PreparedStatement pstmt=null;
1113                 try {
1114                         con=getPooledCon();
1115                         pstmt = con.prepareStatement(sql);
1116                         result = pstmt.executeUpdate();
1117                 }
1118                 catch (Exception e) {
1119                         theLog.printDebugInfo("settimage :: setImage gescheitert: "+e.toString());
1120                         throw new StorageObjectException("executeUpdate failed: "+e.toString());
1121                 }
1122                 finally { freeConnection(con,pstmt); }
1123                 theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms. for: "
1124                                                                                 + sql);
1125                 return result;
1126         }
1127
1128         /**
1129          * Wertet ResultSetMetaData aus und setzt interne Daten entsprechend
1130          * @param md ResultSetMetaData
1131          * @exception StorageObjectException
1132          */
1133         private void evalMetaData (ResultSetMetaData md)
1134                 throws StorageObjectException {
1135
1136                 this.evaluatedMetaData = true;
1137                 this.metadataFields = new ArrayList();
1138                 this.metadataLabels = new ArrayList();
1139                 this.metadataNotNullFields = new ArrayList();
1140                 try {
1141                         int numFields = md.getColumnCount();
1142                         this.metadataTypes = new int[numFields];
1143                         String aField;
1144                         int aType;
1145                         for (int i = 1; i <= numFields; i++) {
1146                                 aField = md.getColumnName(i);
1147                                 metadataFields.add(aField);
1148                                 metadataLabels.add(md.getColumnLabel(i));
1149                                 aType = md.getColumnType(i);
1150                                 metadataTypes[i - 1] = aType;
1151                                 if (aField.equals(thePKeyName)) {
1152                                         thePKeyType = aType; thePKeyIndex = i;
1153                                 }
1154                                 if (md.isNullable(i) == md.columnNullable) {
1155                                         metadataNotNullFields.add(aField);
1156                                 }
1157                         }
1158                 } catch (SQLException e) {
1159                         throwSQLException(e, "evalMetaData");
1160                 }
1161         }
1162
1163         /**
1164          *  Wertet die Metadaten eines Resultsets fuer eine Tabelle aus,
1165          *  um die alle Columns und Typen einer Tabelle zu ermitteln.
1166          */
1167         private void get_meta_data () throws StorageObjectException {
1168                 Connection con = null;
1169                 PreparedStatement pstmt = null;
1170                 String sql = "select * from " + theTable + " where 0=1";
1171                 try {
1172                         con = getPooledCon();
1173                         pstmt = con.prepareStatement(sql);
1174                         theLog.printInfo("METADATA: " + sql);
1175                         ResultSet rs = pstmt.executeQuery();
1176                         evalMetaData(rs.getMetaData());
1177                         rs.close();
1178                 } catch (SQLException e) {
1179                         throwSQLException(e, "get_meta_data");
1180                 } finally {
1181                         freeConnection(con, pstmt);
1182                 }
1183         }
1184
1185
1186         public Connection getPooledCon() throws StorageObjectException {
1187                 /* @todo , doublecheck but I'm pretty sure that this is unnecessary. -mh
1188                         try{
1189                         Class.forName("com.codestudio.sql.PoolMan").newInstance();
1190                 } catch (Exception e){
1191                         throw new StorageObjectException("Could not find the PoolMan Driver"
1192                                                                                                                                                                 +e.toString());
1193                 }*/
1194                 Connection con = null;
1195                 try{
1196                         con = SQLManager.getInstance().requestConnection();
1197                 } catch(SQLException e){
1198                         theLog.printError("could not connect to the database "+e.toString());
1199                         System.err.println("could not connect to the database "+e.toString());
1200                         throw new StorageObjectException("Could not connect to the database"+
1201                                                                                                                                                                 e.toString());
1202                 }
1203                 return con;
1204         }
1205
1206         public void freeConnection (Connection con, Statement stmt)
1207                 throws StorageObjectException {
1208                 SQLManager.getInstance().closeStatement(stmt);
1209                 SQLManager.getInstance().returnConnection(con);
1210         }
1211
1212         /**
1213          * Wertet SQLException aus und wirft dannach eine StorageObjectException
1214          * @param sqe SQLException
1215          * @param wo Funktonsname, in der die SQLException geworfen wurde
1216          * @exception StorageObjectException
1217          */
1218         protected void throwSQLException (SQLException sqe, String wo)
1219                 throws StorageObjectException {
1220                 String state = "";
1221                 String message = "";
1222                 int vendor = 0;
1223                 if (sqe != null) {
1224                         state = sqe.getSQLState();
1225                         message = sqe.getMessage();
1226                         vendor = sqe.getErrorCode();
1227                 }
1228                 theLog.printError(state + ": " + vendor + " : " + message + " Funktion: "
1229                                 + wo);
1230                 throw  new StorageObjectException((sqe == null) ? "undefined sql exception" :
1231                                 sqe.toString());
1232         }
1233
1234         protected void _throwStorageObjectException (Exception e, String wo)
1235                 throws StorageObjectException {
1236                 if (e != null) {
1237                                 theLog.printError(e.toString()+ wo);
1238                                 throw  new StorageObjectException(wo + e.toString());
1239                 } else {
1240                                 theLog.printError(wo);
1241                                 throw  new StorageObjectException(wo);
1242                 }
1243
1244         }
1245
1246         /**
1247          * Loggt Fehlermeldung mit dem Parameter Message und wirft dannach
1248          * eine StorageObjectException
1249          * @param message Nachricht mit dem Fehler
1250          * @exception StorageObjectException
1251          */
1252         void throwStorageObjectException (String message)
1253                 throws StorageObjectException {
1254                 _throwStorageObjectException(null, message);
1255         }
1256
1257 }
1258
1259
1260