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