2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with any library licensed under the Apache Software License,
22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
23 * (or with modified versions of the above that use the same license as the above),
24 * and distribute linked combinations including the two. You must obey the
25 * GNU General Public License in all respects for all of the code used other than
26 * the above mentioned libraries. If you modify this file, you may extend this
27 * exception to your version of the file, but you are not obligated to do so.
28 * If you do not wish to do so, delete this exception statement from your version.
32 import java.io.IOException;
33 import java.io.InputStreamReader;
34 import java.sql.Connection;
35 import java.sql.PreparedStatement;
36 import java.sql.ResultSet;
37 import java.sql.ResultSetMetaData;
38 import java.sql.SQLException;
39 import java.sql.Statement;
40 import java.sql.Timestamp;
41 import java.text.ParseException;
42 import java.text.SimpleDateFormat;
43 import java.util.ArrayList;
44 import java.util.Calendar;
45 import java.util.GregorianCalendar;
46 import java.util.HashMap;
47 import java.util.Iterator;
48 import java.util.List;
50 import java.util.TimeZone;
51 import java.util.Vector;
53 import mir.config.MirPropertiesConfiguration;
54 import mir.config.MirPropertiesConfiguration.PropertiesConfigExc;
55 import mir.entity.Entity;
56 import mir.entity.EntityList;
57 import mir.entity.StorableObjectEntity;
58 import mir.log.LoggerWrapper;
59 import mir.misc.StringUtil;
60 import mir.storage.store.ObjectStore;
61 import mir.storage.store.StorableObject;
62 import mir.storage.store.StoreContainerType;
63 import mir.storage.store.StoreIdentifier;
64 import mir.storage.store.StoreUtil;
65 import mir.util.JDBCStringRoutines;
67 import com.codestudio.util.SQLManager;
71 * Diese Klasse implementiert die Zugriffsschicht auf die Datenbank.
72 * Alle Projektspezifischen Datenbankklassen erben von dieser Klasse.
73 * In den Unterklassen wird im Minimalfall nur die Tabelle angegeben.
74 * Im Konfigurationsfile findet sich eine Verweis auf den verwendeten
75 * Treiber, Host, User und Passwort, ueber den der Zugriff auf die
78 * @version $Id: Database.java,v 1.44.2.20 2003/11/28 17:21:50 rk Exp $
82 public class Database implements StorageObject {
83 private static Class GENERIC_ENTITY_CLASS = mir.entity.StorableObjectEntity.class;
84 private static Class STORABLE_OBJECT_ENTITY_CLASS = mir.entity.StorableObjectEntity.class;
87 private static Map POPUP_EMPTYLINE = new HashMap();
88 protected static final ObjectStore o_store = ObjectStore.getInstance();
89 private static final int _millisPerHour = 60 * 60 * 1000;
90 private static final int _millisPerMinute = 60 * 1000;
93 // always same object saves a little space
94 POPUP_EMPTYLINE.put("key", "");
95 POPUP_EMPTYLINE.put("value", "--");
98 protected LoggerWrapper logger;
99 protected MirPropertiesConfiguration configuration;
100 protected String theTable;
101 protected String theCoreTable = null;
102 protected String thePKeyName = "id";
103 protected int thePKeyType;
104 protected int thePKeyIndex;
105 protected boolean evaluatedMetaData = false;
106 protected ArrayList metadataFields;
107 protected ArrayList metadataLabels;
108 protected ArrayList metadataNotNullFields;
109 protected int[] metadataTypes;
110 protected Class theEntityClass;
111 protected List popupCache = null;
112 protected boolean hasPopupCache = false;
113 protected Map hashCache = null;
114 protected boolean hasTimestamp = true;
115 private String database_driver;
116 private String database_url;
117 private int defaultLimit;
120 SimpleDateFormat internalDateFormat;
121 SimpleDateFormat userInputDateFormat;
123 private SimpleDateFormat _dateFormatterOut;
124 private SimpleDateFormat _dateFormatterIn;
125 _dateFormatterOut = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
126 _dateFormatterIn = new SimpleDateFormat("yyyy-MM-dd HH:mm");
130 * Kontruktor bekommt den Filenamen des Konfigurationsfiles ?bergeben.
131 * Aus diesem file werden <code>Database.Logfile</code>,
132 * <code>Database.Username</code>,<code>Database.Password</code>,
133 * <code>Database.Host</code> und <code>Database.Adaptor</code>
134 * ausgelesen und ein Broker f?r die Verbindugen zur Datenbank
137 * @param String confFilename Dateiname der Konfigurationsdatei
139 public Database() throws StorageObjectFailure {
141 configuration = MirPropertiesConfiguration.instance();
143 catch (PropertiesConfigExc e) {
144 throw new StorageObjectFailure(e);
146 logger = new LoggerWrapper("Database");
147 timezone = TimeZone.getTimeZone(configuration.getString("Mir.DefaultTimezone"));
148 internalDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
149 internalDateFormat.setTimeZone(timezone);
151 userInputDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm");
152 userInputDateFormat.setTimeZone(timezone);
155 String theAdaptorName = configuration.getString("Database.Adaptor");
156 defaultLimit = Integer.parseInt(configuration.getString("Database.Limit"));
159 theEntityClass = GENERIC_ENTITY_CLASS;
161 catch (Throwable e) {
162 logger.error("Error in Database() constructor with " + theAdaptorName + " -- " + e.getMessage());
163 throw new StorageObjectFailure("Error in Database() constructor.", e);
168 * Liefert die Entity-Klasse zur?ck, in der eine Datenbankzeile gewrappt
169 * wird. Wird die Entity-Klasse durch die erbende Klasse nicht ?berschrieben,
170 * wird eine mir.entity.GenericEntity erzeugt.
172 * @return Class-Objekt der Entity
174 public java.lang.Class getEntityClass() {
175 return theEntityClass;
179 * Liefert die Standardbeschr?nkung von select-Statements zur?ck, also
180 * wieviel Datens?tze per Default selektiert werden.
182 * @return Standard-Anzahl der Datens?tze
184 public int getLimit() {
189 * Liefert den Namen des Primary-Keys zur?ck. Wird die Variable nicht von
190 * der erbenden Klasse ?berschrieben, so ist der Wert <code>PKEY</code>
191 * @return Name des Primary-Keys
193 public String getIdName() {
198 * Liefert den Namen der Tabelle, auf das sich das Datenbankobjekt bezieht.
200 * @return Name der Tabelle
202 public String getTableName() {
207 * Dient dazu vererbte Tabellen bei objectrelationalen DBMS
208 * zu speichern, wenn die id einer Tabelle in der parenttabelle verwaltet
210 * @return liefert theCoreTabel als String zurueck, wenn gesetzt, sonst
213 public String getCoreTable() {
214 if (theCoreTable != null) {
223 * Liefert Feldtypen der Felder der Tabelle zurueck (s.a. java.sql.Types)
224 * @return int-Array mit den Typen der Felder
225 * @exception StorageObjectException
227 public int[] getTypes() throws StorageObjectFailure {
228 if (metadataTypes == null) {
232 return metadataTypes;
236 * Liefert eine Liste der Labels der Tabellenfelder
237 * @return ArrayListe mit Labeln
238 * @exception StorageObjectException
240 public List getLabels() throws StorageObjectFailure {
241 if (metadataLabels == null) {
245 return metadataLabels;
249 * Liefert eine Liste der Felder der Tabelle
250 * @return ArrayList mit Feldern
251 * @exception StorageObjectException
253 public List getFields() throws StorageObjectFailure {
254 if (metadataFields == null) {
258 return metadataFields;
262 * Gets value out of ResultSet according to type and converts to String
263 * @param rs ResultSet.
264 * @param aType a type from java.sql.Types.*
265 * @param index index in ResultSet
266 * @return returns the value as String. If no conversion is possible
267 * /unsupported value/ is returned
269 private String getValueAsString(ResultSet rs, int valueIndex, int aType)
270 throws StorageObjectFailure {
271 String outValue = null;
276 case java.sql.Types.BIT:
277 outValue = (rs.getBoolean(valueIndex) == true) ? "1" : "0";
281 case java.sql.Types.INTEGER:
282 case java.sql.Types.SMALLINT:
283 case java.sql.Types.TINYINT:
284 case java.sql.Types.BIGINT:
286 int out = rs.getInt(valueIndex);
289 outValue = new Integer(out).toString();
294 case java.sql.Types.NUMERIC:
296 /** @todo Numeric can be float or double depending upon
297 * metadata.getScale() / especially with oracle */
298 long outl = rs.getLong(valueIndex);
301 outValue = new Long(outl).toString();
306 case java.sql.Types.REAL:
308 float tempf = rs.getFloat(valueIndex);
314 int tempf_int = (int) tempf;
315 tempf = (float) tempf_int;
317 outValue = "" + tempf;
318 outValue = outValue.replace('.', ',');
323 case java.sql.Types.DOUBLE:
325 double tempd = rs.getDouble(valueIndex);
331 int tempd_int = (int) tempd;
332 tempd = (double) tempd_int;
334 outValue = "" + tempd;
335 outValue = outValue.replace('.', ',');
340 case java.sql.Types.CHAR:
341 case java.sql.Types.VARCHAR:
342 case java.sql.Types.LONGVARCHAR:
343 outValue = rs.getString(valueIndex);
347 case java.sql.Types.LONGVARBINARY:
348 outValue = rs.getString(valueIndex);
352 case java.sql.Types.TIMESTAMP:
354 // it's important to use Timestamp here as getting it
355 // as a string is undefined and is only there for debugging
356 // according to the API. we can make it a string through formatting.
358 Timestamp timestamp = (rs.getTimestamp(valueIndex));
361 java.util.Date date = new java.util.Date(timestamp.getTime());
363 Calendar calendar = new GregorianCalendar();
364 calendar.setTime(date);
365 calendar.setTimeZone(timezone);
366 outValue = internalDateFormat.format(date);
368 int offset = calendar.get(Calendar.ZONE_OFFSET) + calendar.get(Calendar.DST_OFFSET);
369 String tzOffset = StringUtil.zeroPaddingNumber(Math.abs(offset) / _millisPerHour, 2, 2);
372 outValue = outValue + "-";
374 outValue = outValue + "+";
375 outValue = outValue + tzOffset;
381 outValue = "<unsupported value>";
382 logger.warn("Unsupported Datatype: at " + valueIndex + " (" + aType + ")");
384 } catch (SQLException e) {
385 throw new StorageObjectFailure("Could not get Value out of Resultset -- ",
394 * select-Operator um einen Datensatz zu bekommen.
395 * @param id Primaerschluessel des Datensatzes.
396 * @return liefert EntityObject des gefundenen Datensatzes oder null.
398 public Entity selectById(String id) throws StorageObjectExc {
399 if ((id == null) || id.equals("")) {
400 throw new StorageObjectExc("Database.selectById: Missing id");
403 // ask object store for object
404 if (StoreUtil.extendsStorableEntity(theEntityClass)) {
405 String uniqueId = id;
407 if (theEntityClass.equals(StorableObjectEntity.class)) {
408 uniqueId += ("@" + theTable);
411 StoreIdentifier search_sid = new StoreIdentifier(theEntityClass, uniqueId);
412 logger.debug("CACHE: (dbg) looking for sid " + search_sid.toString());
414 Entity hit = (Entity) o_store.use(search_sid);
421 Statement stmt = null;
422 Connection con = getPooledCon();
423 Entity returnEntity = null;
428 /** @todo better prepared statement */
430 "select * from " + theTable + " where " + thePKeyName + "=" + id;
431 stmt = con.createStatement();
432 rs = executeSql(stmt, selectSql);
435 if (evaluatedMetaData == false) {
436 evalMetaData(rs.getMetaData());
440 returnEntity = makeEntityFromResultSet(rs);
443 logger.warn("No data for id: " + id + " in table " + theTable);
449 logger.warn("No Data for Id " + id + " in Table " + theTable);
452 catch (SQLException sqe) {
453 throwSQLException(sqe, "selectById");
456 catch (NumberFormatException e) {
457 logger.error("ID is no number: " + id);
460 freeConnection(con, stmt);
467 * This method makes it possible to make selects across multiple tables
469 * @param mainTablePrefix prefix for the mainTable
470 * @param extraTables a vector of tables for relational select
471 * @param aWhereClause whereClause
472 * @return EntityList of selected Objects
473 * @throws StorageObjectFailure
476 public EntityList selectByWhereClauseWithExtraTables(String mainTablePrefix,
477 List extraTables, String aWhereClause )
478 throws StorageObjectFailure {
479 return selectByWhereClause( mainTablePrefix, extraTables, aWhereClause, "", 0, defaultLimit);
483 * select-Operator um Datensaetze zu bekommen, die key = value erfuellen.
484 * @param key Datenbankfeld der Bedingung.
485 * @param value Wert die der key anehmen muss.
486 * @return EntityList mit den gematchten Entities
488 public EntityList selectByFieldValue(String aField, String aValue) throws StorageObjectFailure {
489 return selectByFieldValue(aField, aValue, 0);
493 * select-Operator um Datensaetze zu bekommen, die key = value erfuellen.
494 * @param key Datenbankfeld der Bedingung.
495 * @param value Wert die der key anehmen muss.
496 * @param offset Gibt an ab welchem Datensatz angezeigt werden soll.
497 * @return EntityList mit den gematchten Entities
499 public EntityList selectByFieldValue(String aField, String aValue, int offset) throws StorageObjectFailure {
500 return selectByWhereClause(aField + "=" + aValue, offset);
504 * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
505 * Also offset wird der erste Datensatz genommen.
507 * @param wc where-Clause
508 * @return EntityList mit den gematchten Entities
509 * @exception StorageObjectException
511 public EntityList selectByWhereClause(String where) throws StorageObjectFailure {
512 return selectByWhereClause(where, 0);
516 * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
517 * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
519 * @param wc where-Clause
520 * @param offset ab welchem Datensatz.
521 * @return EntityList mit den gematchten Entities
522 * @exception StorageObjectException
524 public EntityList selectByWhereClause(String whereClause, int offset) throws StorageObjectFailure {
525 return selectByWhereClause(whereClause, null, offset);
529 * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
530 * Also offset wird der erste Datensatz genommen.
531 * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
533 * @param wc where-Clause
534 * @param ob orderBy-Clause
535 * @return EntityList mit den gematchten Entities
536 * @exception StorageObjectException
538 public EntityList selectByWhereClause(String where, String order) throws StorageObjectFailure {
539 return selectByWhereClause(where, order, 0);
542 public EntityList selectByWhereClause(String mainTablePrefix, List extraTables, String where, String order) throws StorageObjectFailure {
543 return selectByWhereClause(mainTablePrefix, extraTables, where, order, 0, defaultLimit);
547 * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
548 * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
550 * @param wc where-Clause
551 * @param ob orderBy-Clause
552 * @param offset ab welchem Datensatz
553 * @return EntityList mit den gematchten Entities
554 * @exception StorageObjectException
556 public EntityList selectByWhereClause(String whereClause, String orderBy, int offset) throws StorageObjectFailure {
557 return selectByWhereClause(whereClause, orderBy, offset, defaultLimit);
561 * select-Operator returns EntityList with matching rows in Database.
562 * @param aWhereClause where-Clause
563 * @param anOrderByClause orderBy-Clause
564 * @param offset ab welchem Datensatz
565 * @param limit wieviele Datens?tze
566 * @return EntityList mit den gematchten Entities
567 * @exception StorageObjectException
569 public EntityList selectByWhereClause(String aWhereClause, String anOrderByClause,
570 int offset, int limit) throws StorageObjectFailure {
571 return selectByWhereClause("", null, aWhereClause, anOrderByClause, offset, limit);
576 * select-Operator returns EntityList with matching rows in Database.
577 * @param aWhereClause where-Clause
578 * @param anOrderByClause orderBy-Clause
579 * @param offset ab welchem Datensatz
580 * @param limit wieviele Datens?tze
581 * @return EntityList mit den gematchten Entities
582 * @exception StorageObjectException
584 public EntityList selectByWhereClause(String mainTablePrefix, List extraTables,
585 String aWhereClause, String anOrderByClause,
586 int offset, int limit) throws StorageObjectFailure {
588 // TODO get rid of emtpy Strings in extraTables
589 // make extraTables null, if single empty String in it
590 // cause StringUtil.splitString puts in emptyString
591 if (extraTables != null && ((String)extraTables.get(0)).trim().equals(""))
593 logger.debug("+++ made extraTables to null!");
597 String useTable = theTable;
598 String selectStar = "*";
599 if (mainTablePrefix!=null && mainTablePrefix.trim().length()>0) {
600 useTable+=" "+mainTablePrefix;
601 selectStar=mainTablePrefix.trim() + ".*";
604 // check o_store for entitylist
605 // only if no relational select
606 if (extraTables==null) {
607 if (StoreUtil.extendsStorableEntity(theEntityClass)) {
608 StoreIdentifier searchSid = new StoreIdentifier(theEntityClass,
609 StoreContainerType.STOC_TYPE_ENTITYLIST,
610 StoreUtil.getEntityListUniqueIdentifierFor(theTable,
611 aWhereClause, anOrderByClause, offset, limit));
612 EntityList hit = (EntityList) o_store.use(searchSid);
621 EntityList theReturnList = null;
622 Connection con = null;
623 Statement stmt = null;
628 // build sql-statement
630 if ((aWhereClause != null) && (aWhereClause.trim().length() == 0)) {
634 StringBuffer countSql =
635 new StringBuffer("select count(*) from ").append(useTable);
636 StringBuffer selectSql =
637 new StringBuffer("select "+selectStar+" from ").append(useTable);
639 // append extratables, if necessary
640 if (extraTables!=null) {
641 for (int i=0;i < extraTables.size();i++) {
642 if (!extraTables.get(i).equals("")) {
643 countSql.append( ", " + extraTables.get(i));
644 selectSql.append( ", " + extraTables.get(i));
649 if (aWhereClause != null) {
650 selectSql.append(" where ").append(aWhereClause);
651 countSql.append(" where ").append(aWhereClause);
654 if ((anOrderByClause != null) && !(anOrderByClause.trim().length() == 0)) {
655 selectSql.append(" order by ").append(anOrderByClause);
658 if ((limit > -1) && (offset > -1)) {
659 selectSql.append(" LIMIT ").append(limit).append(" OFFSET ").append(offset);
664 con = getPooledCon();
665 stmt = con.createStatement();
668 rs = executeSql(stmt, selectSql.toString());
671 if (!evaluatedMetaData) {
672 evalMetaData(rs.getMetaData());
675 theReturnList = new EntityList();
676 Entity theResultEntity;
678 theResultEntity = makeEntityFromResultSet(rs);
679 theReturnList.add(theResultEntity);
685 // making entitylist infos
688 if (theReturnList != null) {
689 // now we decide if we have to know an overall count...
692 if ((limit > -1) && (offset > -1)) {
693 if (offsetCount == limit) {
694 rs = executeSql(stmt, countSql.toString());
698 count = rs.getInt(1);
704 logger.error("Could not count: " + countSql);
709 theReturnList.setCount(count);
710 theReturnList.setOffset(offset);
711 theReturnList.setWhere(aWhereClause);
712 theReturnList.setOrder(anOrderByClause);
713 theReturnList.setStorage(this);
714 theReturnList.setLimit(limit);
716 if (offset >= limit) {
717 theReturnList.setPrevBatch(offset - limit);
720 if ((offset + offsetCount) < count) {
721 theReturnList.setNextBatch(offset + limit);
724 if (extraTables==null && StoreUtil.extendsStorableEntity(theEntityClass)) {
725 StoreIdentifier sid = theReturnList.getStoreIdentifier();
726 logger.debug("CACHE (add): " + sid.toString());
731 catch (SQLException sqe) {
732 throwSQLException(sqe, "selectByWhereClause");
737 freeConnection(con, stmt);
739 } catch (Throwable t) {
743 return theReturnList;
747 * Bastelt aus einer Zeile der Datenbank ein EntityObjekt.
749 * @param rs Das ResultSetObjekt.
750 * @return Entity Die Entity.
752 private Entity makeEntityFromResultSet(ResultSet rs)
753 throws StorageObjectFailure {
754 Map theResultHash = new HashMap();
755 String theResult = null;
757 Entity returnEntity = null;
760 // ask object store for object @ thePKeyIndex
761 if (StoreUtil.extendsStorableEntity(theEntityClass)) {
762 StoreIdentifier searchSid = StorableObjectEntity.getStoreIdentifier(this,
764 Entity hit = (Entity) o_store.use(searchSid);
765 if (hit != null) return hit;
769 int size = metadataFields.size();
771 for (int i = 0; i < size; i++) {
772 // alle durchlaufen bis nix mehr da
773 theType = metadataTypes[i];
775 if (theType == java.sql.Types.LONGVARBINARY) {
776 InputStreamReader is =
777 (InputStreamReader) rs.getCharacterStream(i + 1);
780 char[] data = new char[32768];
781 StringBuffer theResultString = new StringBuffer();
784 while ((len = is.read(data)) > 0) {
785 theResultString.append(data, 0, len);
789 theResult = theResultString.toString();
794 theResult = getValueAsString(rs, (i + 1), theType);
797 if (theResult != null) {
798 theResultHash.put(metadataFields.get(i), theResult);
802 if (theEntityClass != null) {
803 returnEntity = (Entity) theEntityClass.newInstance();
804 returnEntity.setStorage(this);
805 returnEntity.setValues(theResultHash);
807 if (returnEntity instanceof StorableObject) {
808 logger.debug("CACHE: ( in) " + returnEntity.getId() + " :" + theTable);
809 o_store.add(((StorableObject) returnEntity).getStoreIdentifier());
812 throwStorageObjectException("Internal Error: theEntityClass not set!");
815 catch (IllegalAccessException e) {
816 throwStorageObjectException("No access! -- " + e.getMessage());
818 catch (IOException e) {
819 throwStorageObjectException("IOException! -- " + e.getMessage());
821 catch (InstantiationException e) {
822 throwStorageObjectException("No Instatiation! -- " + e.getMessage());
824 catch (SQLException sqe) {
825 throwSQLException(sqe, "makeEntityFromResultSet");
834 * Inserts an entity into the database.
837 * @return der Wert des Primary-keys der eingef?gten Entity
839 public String insert(Entity theEntity) throws StorageObjectFailure {
841 invalidatePopupCache();
843 // invalidating all EntityLists corresponding with theEntityClass
844 if (StoreUtil.extendsStorableEntity(theEntityClass)) {
845 StoreContainerType stoc_type =
846 StoreContainerType.valueOf(theEntityClass,
847 StoreContainerType.STOC_TYPE_ENTITYLIST);
848 o_store.invalidate(stoc_type);
851 String returnId = null;
852 Connection con = null;
853 PreparedStatement pstmt = null;
856 List streamedInput = theEntity.streamedInput();
857 StringBuffer f = new StringBuffer();
858 StringBuffer v = new StringBuffer();
861 boolean firstField = true;
864 for (int i = 0; i < getFields().size(); i++) {
865 aField = (String) getFields().get(i);
867 if (!aField.equals(thePKeyName)) {
871 if (!theEntity.hasValueForField(aField) && (
872 aField.equals("webdb_create") ||
873 aField.equals("webdb_lastchange"))) {
877 if ((streamedInput != null) && streamedInput.contains(aField)) {
881 if (theEntity.hasValueForField(aField)) {
884 JDBCStringRoutines.escapeStringLiteral((String) theEntity.getValue(aField)) + "'";
889 // wenn Wert gegeben, dann einbauen
890 if (aValue != null) {
891 if (firstField == false) {
907 StringBuffer sqlBuf =
908 new StringBuffer("insert into ").append(theTable).append("(").append(f)
909 .append(") values (").append(v).append(")");
910 String sql = sqlBuf.toString();
912 logger.info("INSERT: " + sql);
913 con = getPooledCon();
914 con.setAutoCommit(false);
915 pstmt = con.prepareStatement(sql);
917 if (streamedInput != null) {
918 for (int i = 0; i < streamedInput.size(); i++) {
920 (String) theEntity.getValue((String) streamedInput.get(i));
921 pstmt.setBytes(i + 1, inputString.getBytes());
925 int ret = pstmt.executeUpdate();
932 pstmt = con.prepareStatement("select currval('" + getCoreTable() + "_id_seq')");
934 ResultSet rs = pstmt.executeQuery();
936 returnId = rs.getString(1);
937 theEntity.setId(returnId);
939 catch (SQLException sqe) {
940 throwSQLException(sqe, "insert");
944 con.setAutoCommit(true);
946 catch (Exception e) {
949 freeConnection(con, pstmt);
952 /** @todo store entity in o_store */
957 * Updates an entity in the database
961 public void update(Entity theEntity) throws StorageObjectFailure {
962 Connection con = null;
963 PreparedStatement pstmt = null;
965 /** @todo this is stupid: why do we prepare statement, when we
966 * throw it away afterwards. should be regular statement
967 * update/insert could better be one routine called save()
968 * that chooses to either insert or update depending if we
969 * have a primary key in the entity. i don't know if we
970 * still need the streamed input fields. // rk */
971 /** @todo extension: check if Entity did change, otherwise we don't need
972 * the roundtrip to the database */
973 /** invalidating corresponding entitylists in o_store*/
974 if (StoreUtil.extendsStorableEntity(theEntityClass)) {
975 StoreContainerType stoc_type =
976 StoreContainerType.valueOf(theEntityClass,
977 StoreContainerType.STOC_TYPE_ENTITYLIST);
978 o_store.invalidate(stoc_type);
981 List streamedInput = theEntity.streamedInput();
982 String id = theEntity.getId();
984 StringBuffer fv = new StringBuffer();
985 boolean firstField = true;
988 invalidatePopupCache();
990 // build sql statement
991 for (int i = 0; i < getFields().size(); i++) {
992 aField = (String) metadataFields.get(i);
995 if ( !(aField.equals(thePKeyName) ||
996 aField.equals("webdb_create") ||
997 aField.equals("webdb_lastchange") ||
998 ((streamedInput != null) && streamedInput.contains(aField)))) {
999 if (theEntity.hasValueForField(aField)) {
1000 if (firstField == false) {
1007 fv.append(aField).append("='").append(JDBCStringRoutines.escapeStringLiteral((String) theEntity.getValue(aField))).append("'");
1009 // fv.append(aField).append("='").append(StringUtil.quote((String)theEntity.getValue(aField))).append("'");
1015 new StringBuffer("update ").append(theTable).append(" set ").append(fv);
1018 if (metadataFields.contains("webdb_lastchange")) {
1019 sql.append(",webdb_lastchange=NOW()");
1022 // special case: the webdb_create requires the field in yyyy-mm-dd HH:mm
1023 // format so anything extra will be ignored. -mh
1024 if (metadataFields.contains("webdb_create") &&
1025 theEntity.hasValueForField("webdb_create")) {
1026 // minimum of 10 (yyyy-mm-dd)...
1027 if (theEntity.getValue("webdb_create").length() >= 10) {
1028 String dateString = theEntity.getValue("webdb_create");
1030 // if only 10, then add 00:00 so it doesn't throw a ParseException
1031 if (dateString.length() == 10) {
1032 dateString = dateString + " 00:00";
1037 java.util.Date d = userInputDateFormat.parse(dateString);
1038 // Timestamp tStamp = new Timestamp(d.getTime());
1039 sql.append(",webdb_create='" + JDBCStringRoutines.formatDate(d) + "'");
1041 catch (ParseException e) {
1042 throw new StorageObjectFailure(e);
1047 if (streamedInput != null) {
1048 for (int i = 0; i < streamedInput.size(); i++) {
1049 sql.append(",").append(streamedInput.get(i)).append("=?");
1053 sql.append(" where id=").append(id);
1054 logger.info("UPDATE: " + sql);
1057 con = getPooledCon();
1058 con.setAutoCommit(false);
1059 pstmt = con.prepareStatement(sql.toString());
1061 if (streamedInput != null) {
1062 for (int i = 0; i < streamedInput.size(); i++) {
1063 String inputString =
1064 theEntity.getValue((String) streamedInput.get(i));
1065 pstmt.setBytes(i + 1, inputString.getBytes());
1069 pstmt.executeUpdate();
1071 catch (SQLException sqe) {
1072 throwSQLException(sqe, "update");
1076 con.setAutoCommit(true);
1078 catch (Exception e) {
1082 freeConnection(con, pstmt);
1088 * @param id des zu loeschenden Datensatzes
1089 * @return boolean liefert true zurueck, wenn loeschen erfolgreich war.
1091 public boolean delete(String id) throws StorageObjectFailure {
1092 invalidatePopupCache();
1094 // ostore send notification
1095 if (StoreUtil.extendsStorableEntity(theEntityClass)) {
1096 String uniqueId = id;
1098 if (theEntityClass.equals(StorableObjectEntity.class)) {
1099 uniqueId += ("@" + theTable);
1102 logger.debug("CACHE: (del) " + id);
1104 StoreIdentifier search_sid =
1105 new StoreIdentifier(theEntityClass,
1106 StoreContainerType.STOC_TYPE_ENTITY, uniqueId);
1107 o_store.invalidate(search_sid);
1110 /** @todo could be prepared Statement */
1111 Statement stmt = null;
1112 Connection con = null;
1115 "delete from " + theTable + " where " + thePKeyName + "='" + id + "'";
1117 //theLog.printInfo("DELETE " + sql);
1119 con = getPooledCon();
1120 stmt = con.createStatement();
1121 res = stmt.executeUpdate(sql);
1122 } catch (SQLException sqe) {
1123 throwSQLException(sqe, "delete");
1125 freeConnection(con, stmt);
1128 return (res > 0) ? true : false;
1132 * Deletes entities based on a where clause
1134 * @param aWhereClause
1136 * @throws StorageObjectFailure
1138 public int deleteByWhereClause(String aWhereClause) throws StorageObjectFailure {
1139 invalidatePopupCache();
1140 if (StoreUtil.extendsStorableEntity(theEntityClass)) {
1141 StoreContainerType stoc_type = StoreContainerType.valueOf(theEntityClass, StoreContainerType.STOC_TYPE_ENTITYLIST);
1142 o_store.invalidate(stoc_type);
1145 Statement stmt = null;
1146 Connection con = null;
1149 "delete from " + theTable + " where " + aWhereClause;
1151 //theLog.printInfo("DELETE " + sql);
1153 con = getPooledCon();
1154 stmt = con.createStatement();
1155 res = stmt.executeUpdate(sql);
1157 catch (SQLException sqe) {
1158 throwSQLException(sqe, "delete");
1161 freeConnection(con, stmt);
1167 /* noch nicht implementiert.
1168 * @return immer false
1170 public boolean delete(EntityList theEntityList) {
1171 invalidatePopupCache();
1176 /* invalidates the popupCache
1178 protected void invalidatePopupCache() {
1179 /** @todo invalidates toooo much */
1185 * Diese Methode fuehrt den Sqlstring <i>sql</i> aus und timed im Logfile.
1186 * @param stmt Statemnt
1187 * @param sql Sql-String
1189 * @exception StorageObjectException
1191 public ResultSet executeSql(Statement stmt, String sql)
1192 throws StorageObjectFailure, SQLException {
1194 long startTime = System.currentTimeMillis();
1197 rs = stmt.executeQuery(sql);
1199 logger.info((System.currentTimeMillis() - startTime) + "ms. for: " + sql);
1201 catch (SQLException e) {
1202 logger.error(e.getMessage() +"\n" + (System.currentTimeMillis() - startTime) + "ms. for: " + sql);
1209 private Map processRow(ResultSet aResultSet) throws StorageObjectFailure, StorageObjectExc {
1211 Map result = new HashMap();
1212 ResultSetMetaData metaData = aResultSet.getMetaData();
1213 int nrColumns = metaData.getColumnCount();
1214 for (int i=0; i<nrColumns; i++) {
1215 result.put(metaData.getColumnName(i+1), getValueAsString(aResultSet, i+1, metaData.getColumnType(i+1)));
1220 catch (Throwable e) {
1221 throw new StorageObjectFailure(e);
1225 public List executeFreeSql(String sql, int aLimit) throws StorageObjectFailure, StorageObjectExc {
1226 Connection connection = null;
1227 Statement statement = null;
1229 List result = new Vector();
1230 connection = getPooledCon();
1231 statement = connection.createStatement();
1232 ResultSet resultset = executeSql(statement, sql);
1234 while (resultset.next() && result.size() < aLimit) {
1235 result.add(processRow(resultset));
1244 catch (Throwable e) {
1245 throw new StorageObjectFailure(e);
1248 if (connection!=null) {
1249 freeConnection(connection, statement);
1254 public Map executeFreeSingleRowSql(String anSqlStatement) throws StorageObjectFailure, StorageObjectExc {
1256 List resultList = executeFreeSql(anSqlStatement, 1);
1258 if (resultList.size()>0)
1259 return (Map) resultList.get(0);
1266 catch (Throwable t) {
1267 throw new StorageObjectFailure(t);
1271 public String executeFreeSingleValueSql(String sql) throws StorageObjectFailure, StorageObjectExc {
1272 Map row = executeFreeSingleRowSql(sql);
1277 Iterator i = row.values().iterator();
1279 return (String) i.next();
1284 public int getSize(String where) throws SQLException, StorageObjectFailure {
1285 return getSize("", null, where);
1288 * returns the number of rows in the table
1290 public int getSize(String mainTablePrefix, List extraTables, String where) throws SQLException, StorageObjectFailure {
1292 long startTime = System.currentTimeMillis();
1294 String useTable = theTable;
1295 if (mainTablePrefix!=null && mainTablePrefix.trim().length()>0) {
1296 useTable+=" "+mainTablePrefix;
1298 StringBuffer countSql =
1299 new StringBuffer("select count(*) from ").append(useTable);
1300 // append extratables, if necessary
1301 if (extraTables!=null) {
1302 for (int i=0;i < extraTables.size();i++) {
1303 if (!extraTables.get(i).equals("")) {
1304 countSql.append( ", " + extraTables.get(i));
1309 if ((where != null) && (where.length() != 0)) {
1310 countSql.append( " where " + where);
1313 Connection con = null;
1314 Statement stmt = null;
1318 con = getPooledCon();
1319 stmt = con.createStatement();
1321 ResultSet rs = executeSql(stmt, countSql.toString());
1324 result = rs.getInt(1);
1327 catch (SQLException e) {
1328 logger.error("Database.getSize: " + e.getMessage());
1331 freeConnection(con, stmt);
1333 logger.info((System.currentTimeMillis() - startTime) + "ms. for: " + countSql);
1338 public int executeUpdate(Statement stmt, String sql)
1339 throws StorageObjectFailure, SQLException {
1341 long startTime = System.currentTimeMillis();
1344 rs = stmt.executeUpdate(sql);
1346 logger.info((System.currentTimeMillis() - startTime) + "ms. for: " + sql);
1348 catch (SQLException e) {
1349 logger.error("Failed: " + (System.currentTimeMillis() - startTime) + "ms. for: " + sql);
1356 public int executeUpdate(String sql)
1357 throws StorageObjectFailure, SQLException {
1359 long startTime = System.currentTimeMillis();
1360 Connection con = null;
1361 PreparedStatement pstmt = null;
1364 con = getPooledCon();
1365 pstmt = con.prepareStatement(sql);
1366 result = pstmt.executeUpdate();
1368 catch (Throwable e) {
1369 logger.error("Database.executeUpdate(" + sql + "): " + e.getMessage());
1370 throw new StorageObjectFailure("Database.executeUpdate(" + sql + "): " + e.getMessage(), e);
1373 freeConnection(con, pstmt);
1376 logger.info((System.currentTimeMillis() - startTime) + "ms. for: " + sql);
1381 * Wertet ResultSetMetaData aus und setzt interne Daten entsprechend
1382 * @param md ResultSetMetaData
1383 * @exception StorageObjectException
1385 private void evalMetaData(ResultSetMetaData md) throws StorageObjectFailure {
1386 this.evaluatedMetaData = true;
1387 this.metadataFields = new ArrayList();
1388 this.metadataLabels = new ArrayList();
1389 this.metadataNotNullFields = new ArrayList();
1392 int numFields = md.getColumnCount();
1393 this.metadataTypes = new int[numFields];
1398 for (int i = 1; i <= numFields; i++) {
1399 aField = md.getColumnName(i);
1400 metadataFields.add(aField);
1401 metadataLabels.add(md.getColumnLabel(i));
1402 aType = md.getColumnType(i);
1403 metadataTypes[i - 1] = aType;
1405 if (aField.equals(thePKeyName)) {
1406 thePKeyType = aType;
1410 if (md.isNullable(i) == ResultSetMetaData.columnNullable) {
1411 metadataNotNullFields.add(aField);
1415 catch (SQLException e) {
1416 throwSQLException(e, "evalMetaData");
1421 * Wertet die Metadaten eines Resultsets fuer eine Tabelle aus,
1422 * um die alle Columns und Typen einer Tabelle zu ermitteln.
1424 private void get_meta_data() throws StorageObjectFailure {
1425 Connection con = null;
1426 PreparedStatement pstmt = null;
1427 String sql = "select * from " + theTable + " where 0=1";
1430 con = getPooledCon();
1431 pstmt = con.prepareStatement(sql);
1433 logger.debug("METADATA: " + sql);
1434 ResultSet rs = pstmt.executeQuery();
1435 evalMetaData(rs.getMetaData());
1438 catch (SQLException e) {
1439 throwSQLException(e, "get_meta_data");
1442 freeConnection(con, pstmt);
1446 public Connection getPooledCon() throws StorageObjectFailure {
1447 Connection con = null;
1450 con = SQLManager.getInstance().requestConnection();
1452 catch (SQLException e) {
1453 logger.error("could not connect to the database " + e.getMessage());
1455 throw new StorageObjectFailure("Could not connect to the database", e);
1461 public void freeConnection(Connection con, Statement stmt)
1462 throws StorageObjectFailure {
1463 SQLManager.closeStatement(stmt);
1464 SQLManager.getInstance().returnConnection(con);
1468 * Wertet SQLException aus und wirft dannach eine StorageObjectException
1469 * @param sqe SQLException
1470 * @param wo Funktonsname, in der die SQLException geworfen wurde
1471 * @exception StorageObjectException
1473 protected void throwSQLException(SQLException sqe, String aFunction) throws StorageObjectFailure {
1475 String message = "";
1479 state = sqe.getSQLState();
1480 message = sqe.getMessage();
1481 vendor = sqe.getErrorCode();
1484 String information =
1487 ", vendor= " + vendor +
1488 ", message=" + message +
1489 ", function= " + aFunction;
1491 logger.error(information);
1493 throw new StorageObjectFailure(information, sqe);
1496 protected void _throwStorageObjectException(Exception e, String aFunction)
1497 throws StorageObjectFailure {
1500 logger.error(e.getMessage() + aFunction);
1501 throw new StorageObjectFailure(aFunction, e);
1506 * Loggt Fehlermeldung mit dem Parameter Message und wirft dannach
1507 * eine StorageObjectException
1508 * @param message Nachricht mit dem Fehler
1509 * @exception StorageObjectException
1511 void throwStorageObjectException(String aMessage) throws StorageObjectFailure {
1512 logger.error(aMessage);
1513 throw new StorageObjectFailure(aMessage, null);