-/*\r
- * Copyright (C) 2001, 2002 The Mir-coders group\r
- *\r
- * This file is part of Mir.\r
- *\r
- * Mir is free software; you can redistribute it and/or modify\r
- * it under the terms of the GNU General Public License as published by\r
- * the Free Software Foundation; either version 2 of the License, or\r
- * (at your option) any later version.\r
- *\r
- * Mir is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- * GNU General Public License for more details.\r
- *\r
- * You should have received a copy of the GNU General Public License\r
- * along with Mir; if not, write to the Free Software\r
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r
- *\r
- * In addition, as a special exception, The Mir-coders gives permission to link\r
- * the code of this program with the com.oreilly.servlet library, any library\r
- * licensed under the Apache Software License, The Sun (tm) Java Advanced\r
- * Imaging library (JAI), The Sun JIMI library (or with modified versions of\r
- * the above that use the same license as the above), and distribute linked\r
- * combinations including the two. You must obey the GNU General Public\r
- * License in all respects for all of the code used other than the above\r
- * mentioned libraries. If you modify this file, you may extend this exception\r
- * to your version of the file, but you are not obligated to do so. If you do\r
- * not wish to do so, delete this exception statement from your version.\r
- */\r
-\r
-package mir.storage;\r
-\r
-import java.io.IOException;\r
-import java.io.InputStreamReader;\r
-import java.sql.Connection;\r
-import java.sql.PreparedStatement;\r
-import java.sql.ResultSet;\r
-import java.sql.ResultSetMetaData;\r
-import java.sql.SQLException;\r
-import java.sql.Statement;\r
-import java.sql.Timestamp;\r
-import java.text.ParseException;\r
-import java.text.SimpleDateFormat;\r
-import java.util.ArrayList;\r
-import java.util.Calendar;\r
-import java.util.GregorianCalendar;\r
-import java.util.HashMap;\r
-\r
-import mir.config.MirPropertiesConfiguration;\r
-import mir.config.MirPropertiesConfiguration.PropertiesConfigExc;\r
-import mir.entity.Entity;\r
-import mir.entity.EntityList;\r
-import mir.entity.StorableObjectEntity;\r
-import mir.misc.HTMLTemplateProcessor;\r
-import mir.misc.Logfile;\r
-import mir.misc.StringUtil;\r
-import mir.storage.store.ObjectStore;\r
-import mir.storage.store.StorableObject;\r
-import mir.storage.store.StoreContainerType;\r
-import mir.storage.store.StoreIdentifier;\r
-import mir.storage.store.StoreUtil;\r
-import mir.util.JDBCStringRoutines;\r
-\r
-import com.codestudio.util.SQLManager;\r
-\r
-import freemarker.template.SimpleHash;\r
-import freemarker.template.SimpleList;\r
-\r
-\r
-/**\r
- * Diese Klasse implementiert die Zugriffsschicht auf die Datenbank.\r
- * Alle Projektspezifischen Datenbankklassen erben von dieser Klasse.\r
- * In den Unterklassen wird im Minimalfall nur die Tabelle angegeben.\r
- * Im Konfigurationsfile findet sich eine Verweis auf den verwendeten\r
- * Treiber, Host, User und Passwort, ueber den der Zugriff auf die\r
- * Datenbank erfolgt.\r
- *\r
- * @version $Id: Database.java,v 1.31 2003/01/25 17:45:19 idfx Exp $\r
- * @author rk\r
- *\r
- */\r
-public class Database implements StorageObject {\r
-\r
- protected MirPropertiesConfiguration configuration;\r
- protected String theTable;\r
- protected String theCoreTable=null;\r
- protected String thePKeyName="id";\r
- protected int thePKeyType, thePKeyIndex;\r
- protected boolean evaluatedMetaData=false;\r
- protected ArrayList metadataFields,metadataLabels,\r
- metadataNotNullFields;\r
- protected int[] metadataTypes;\r
- protected Class theEntityClass;\r
- protected StorageObject myselfDatabase;\r
- protected SimpleList popupCache=null;\r
- protected boolean hasPopupCache = false;\r
- protected SimpleHash hashCache=null;\r
- protected boolean hasTimestamp=true;\r
- private String database_driver, database_url;\r
- private int defaultLimit;\r
- protected DatabaseAdaptor theAdaptor;\r
- protected Logfile theLog;\r
- private static Class GENERIC_ENTITY_CLASS=null,\r
- STORABLE_OBJECT_ENTITY_CLASS=null;\r
- private static SimpleHash POPUP_EMTYLINE=new SimpleHash();\r
- protected static final ObjectStore o_store=ObjectStore.getInstance();\r
- private SimpleDateFormat _dateFormatterOut =\r
- new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");\r
- private SimpleDateFormat _dateFormatterIn =\r
- new SimpleDateFormat("yyyy-MM-dd HH:mm");\r
- private Calendar _cal = new GregorianCalendar();\r
-\r
- private static final int _millisPerHour = 60 * 60 * 1000;\r
- private static final int _millisPerMinute = 60 * 1000;\r
-\r
- static {\r
- // always same object saves a little space\r
- POPUP_EMTYLINE.put("key", ""); POPUP_EMTYLINE.put("value", "--");\r
- try {\r
- GENERIC_ENTITY_CLASS = Class.forName("mir.entity.StorableObjectEntity");\r
- STORABLE_OBJECT_ENTITY_CLASS = Class.forName("mir.entity.StorableObjectEntity");\r
- }\r
- catch (Exception e) {\r
- System.err.println("FATAL: Database.java could not initialize" + e.getMessage());\r
- }\r
- }\r
-\r
-\r
- /**\r
- * Kontruktor bekommt den Filenamen des Konfigurationsfiles ?bergeben.\r
- * Aus diesem file werden <code>Database.Logfile</code>,\r
- * <code>Database.Username</code>,<code>Database.Password</code>,\r
- * <code>Database.Host</code> und <code>Database.Adaptor</code>\r
- * ausgelesen und ein Broker f?r die Verbindugen zur Datenbank\r
- * erzeugt.\r
- *\r
- * @param String confFilename Dateiname der Konfigurationsdatei\r
- */\r
- public Database() throws StorageObjectFailure {\r
- try {\r
- configuration = MirPropertiesConfiguration.instance();\r
- } catch (PropertiesConfigExc e) {\r
- throw new StorageObjectFailure(e);\r
- }\r
- theLog = Logfile.getInstance(configuration.getStringWithHome("Database.Logfile"));\r
- String theAdaptorName=configuration.getString("Database.Adaptor");\r
- defaultLimit = Integer.parseInt(configuration.getString("Database.Limit"));\r
- try {\r
- theEntityClass = GENERIC_ENTITY_CLASS;\r
- theAdaptor = (DatabaseAdaptor)Class.forName(theAdaptorName).newInstance();\r
- } catch (Exception e){\r
- theLog.printError("Error in Database() constructor with "+\r
- theAdaptorName + " -- " +e.getMessage());\r
- throw new StorageObjectFailure("Error in Database() constructor.",e);\r
- }\r
- }\r
-\r
- /**\r
- * Liefert die Entity-Klasse zur?ck, in der eine Datenbankzeile gewrappt\r
- * wird. Wird die Entity-Klasse durch die erbende Klasse nicht ?berschrieben,\r
- * wird eine mir.entity.GenericEntity erzeugt.\r
- *\r
- * @return Class-Objekt der Entity\r
- */\r
- public java.lang.Class getEntityClass () {\r
- return theEntityClass;\r
- }\r
-\r
- /**\r
- * Liefert die Standardbeschr?nkung von select-Statements zur?ck, also\r
- * wieviel Datens?tze per Default selektiert werden.\r
- *\r
- * @return Standard-Anzahl der Datens?tze\r
- */\r
- public int getLimit () {\r
- return defaultLimit;\r
- }\r
-\r
- /**\r
- * Liefert den Namen des Primary-Keys zur?ck. Wird die Variable nicht von\r
- * der erbenden Klasse ?berschrieben, so ist der Wert <code>PKEY</code>\r
- * @return Name des Primary-Keys\r
- */\r
- public String getIdName () {\r
- return thePKeyName;\r
- }\r
-\r
- /**\r
- * Liefert den Namen der Tabelle, auf das sich das Datenbankobjekt bezieht.\r
- *\r
- * @return Name der Tabelle\r
- */\r
- public String getTableName () {\r
- return theTable;\r
- }\r
-\r
- /*\r
- * Dient dazu vererbte Tabellen bei objectrelationalen DBMS\r
- * zu speichern, wenn die id einer Tabelle in der parenttabelle verwaltet\r
- * wird.\r
- * @return liefert theCoreTabel als String zurueck, wenn gesetzt, sonst\r
- * the Table\r
- */\r
-\r
- public String getCoreTable(){\r
- if (theCoreTable!=null) return theCoreTable;\r
- else return theTable;\r
- }\r
-\r
- /**\r
- * Liefert Feldtypen der Felder der Tabelle zurueck (s.a. java.sql.Types)\r
- * @return int-Array mit den Typen der Felder\r
- * @exception StorageObjectException\r
- */\r
- public int[] getTypes () throws StorageObjectFailure {\r
- if (metadataTypes == null)\r
- get_meta_data();\r
- return metadataTypes;\r
- }\r
-\r
- /**\r
- * Liefert eine Liste der Labels der Tabellenfelder\r
- * @return ArrayListe mit Labeln\r
- * @exception StorageObjectException\r
- */\r
- public ArrayList getLabels () throws StorageObjectFailure {\r
- if (metadataLabels == null)\r
- get_meta_data();\r
- return metadataLabels;\r
- }\r
-\r
- /**\r
- * Liefert eine Liste der Felder der Tabelle\r
- * @return ArrayList mit Feldern\r
- * @exception StorageObjectException\r
- */\r
- public ArrayList getFields () throws StorageObjectFailure {\r
- if (metadataFields == null)\r
- get_meta_data();\r
- return metadataFields;\r
- }\r
-\r
-\r
- /*\r
- * Gets value out of ResultSet according to type and converts to String\r
- * @param inValue Wert aus ResultSet.\r
- * @param aType Datenbanktyp.\r
- * @return liefert den Wert als String zurueck. Wenn keine Umwandlung moeglich\r
- * dann /unsupported value/\r
- */\r
- private String getValueAsString (ResultSet rs, int valueIndex, int aType) \r
- throws StorageObjectFailure {\r
- String outValue = null;\r
- if (rs != null) {\r
- try {\r
- switch (aType) {\r
- case java.sql.Types.BIT:\r
- outValue = (rs.getBoolean(valueIndex) == true) ? "1" : "0";\r
- break;\r
- case java.sql.Types.INTEGER:case java.sql.Types.SMALLINT:case java.sql.Types.TINYINT:case java.sql.Types.BIGINT:\r
- int out = rs.getInt(valueIndex);\r
- if (!rs.wasNull())\r
- outValue = new Integer(out).toString();\r
- break;\r
- case java.sql.Types.NUMERIC:\r
- /** @todo Numeric can be float or double depending upon\r
- * metadata.getScale() / especially with oracle */\r
- long outl = rs.getLong(valueIndex);\r
- if (!rs.wasNull())\r
- outValue = new Long(outl).toString();\r
- break;\r
- case java.sql.Types.REAL:\r
- float tempf = rs.getFloat(valueIndex);\r
- if (!rs.wasNull()) {\r
- tempf *= 10;\r
- tempf += 0.5;\r
- int tempf_int = (int)tempf;\r
- tempf = (float)tempf_int;\r
- tempf /= 10;\r
- outValue = "" + tempf;\r
- outValue = outValue.replace('.', ',');\r
- }\r
- break;\r
- case java.sql.Types.DOUBLE:\r
- double tempd = rs.getDouble(valueIndex);\r
- if (!rs.wasNull()) {\r
- tempd *= 10;\r
- tempd += 0.5;\r
- int tempd_int = (int)tempd;\r
- tempd = (double)tempd_int;\r
- tempd /= 10;\r
- outValue = "" + tempd;\r
- outValue = outValue.replace('.', ',');\r
- }\r
- break;\r
- case java.sql.Types.CHAR:case java.sql.Types.VARCHAR:case java.sql.Types.LONGVARCHAR:\r
- outValue = rs.getString(valueIndex);\r
- break;\r
- case java.sql.Types.LONGVARBINARY:\r
- outValue = rs.getString(valueIndex);\r
- break;\r
- case java.sql.Types.TIMESTAMP:\r
- // it's important to use Timestamp here as getting it\r
- // as a string is undefined and is only there for debugging\r
- // according to the API. we can make it a string through formatting.\r
- // -mh\r
- Timestamp timestamp = (rs.getTimestamp(valueIndex));\r
- if(!rs.wasNull()) {\r
- java.util.Date date = new java.util.Date(timestamp.getTime());\r
- outValue = _dateFormatterOut.format(date);\r
- _cal.setTime(date);\r
- int offset = _cal.get(Calendar.ZONE_OFFSET)+\r
- _cal.get(Calendar.DST_OFFSET);\r
- String tzOffset = StringUtil.zeroPaddingNumber(\r
- offset/_millisPerHour,2,2);\r
- outValue = outValue+"+"+tzOffset;\r
- }\r
- break;\r
- default:\r
- outValue = "<unsupported value>";\r
- theLog.printWarning("Unsupported Datatype: at " + valueIndex +\r
- " (" + aType + ")");\r
- }\r
- } catch (SQLException e) {\r
- throw new StorageObjectFailure("Could not get Value out of Resultset -- ",e); \r
- }\r
- }\r
- return outValue;\r
- }\r
-\r
- /*\r
- * select-Operator um einen Datensatz zu bekommen.\r
- * @param id Primaerschluessel des Datensatzes.\r
- * @return liefert EntityObject des gefundenen Datensatzes oder null.\r
- */\r
- public Entity selectById(String id) \r
- throws StorageObjectExc {\r
- if (id==null||id.equals(""))\r
- throw new StorageObjectExc("id war null");\r
-\r
- // ask object store for object\r
- if ( StoreUtil.implementsStorableObject(theEntityClass) ) {\r
- String uniqueId = id;\r
- if ( theEntityClass.equals(StorableObjectEntity.class) )\r
- uniqueId+="@"+theTable;\r
- StoreIdentifier search_sid = new StoreIdentifier(theEntityClass, uniqueId);\r
- theLog.printDebugInfo("CACHE: (dbg) looking for sid " + search_sid.toString());\r
- Entity hit = (Entity)o_store.use(search_sid);\r
- if ( hit!=null ) return hit;\r
- }\r
-\r
- Statement stmt=null;Connection con=getPooledCon();\r
- Entity returnEntity=null;\r
- try {\r
- ResultSet rs;\r
- /** @todo better prepared statement */\r
- String selectSql = "select * from " + theTable + " where " + thePKeyName + "=" + id;\r
- stmt = con.createStatement();\r
- rs = executeSql(stmt, selectSql);\r
- if (rs != null) {\r
- if (evaluatedMetaData==false) evalMetaData(rs.getMetaData());\r
- if (rs.next())\r
- returnEntity = makeEntityFromResultSet(rs);\r
- else theLog.printDebugInfo("Keine daten fuer id: " + id + "in Tabelle" + theTable);\r
- rs.close();\r
- }\r
- else {\r
- theLog.printDebugInfo("No Data for Id " + id + " in Table " + theTable);\r
- }\r
- }\r
- catch (SQLException sqe){\r
- throwSQLException(sqe,"selectById"); return null;\r
- }\r
- catch (NumberFormatException e) {\r
- theLog.printError("ID ist keine Zahl: " + id);\r
- }\r
- finally { freeConnection(con,stmt); }\r
-\r
- /** @todo OS: Entity should be saved in ostore */\r
- return returnEntity;\r
- }\r
-\r
-\r
- /**\r
- * select-Operator um Datensaetze zu bekommen, die key = value erfuellen.\r
- * @param key Datenbankfeld der Bedingung.\r
- * @param value Wert die der key anehmen muss.\r
- * @return EntityList mit den gematchten Entities\r
- */\r
- public EntityList selectByFieldValue(String aField, String aValue)\r
- throws StorageObjectFailure\r
- {\r
- return selectByFieldValue(aField, aValue, 0);\r
- }\r
-\r
- /**\r
- * select-Operator um Datensaetze zu bekommen, die key = value erfuellen.\r
- * @param key Datenbankfeld der Bedingung.\r
- * @param value Wert die der key anehmen muss.\r
- * @param offset Gibt an ab welchem Datensatz angezeigt werden soll.\r
- * @return EntityList mit den gematchten Entities\r
- */\r
- public EntityList selectByFieldValue(String aField, String aValue, int offset)\r
- throws StorageObjectFailure\r
- {\r
- return selectByWhereClause(aField + "=" + aValue, offset);\r
- }\r
-\r
-\r
- /**\r
- * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.\r
- * Also offset wird der erste Datensatz genommen.\r
- *\r
- * @param wc where-Clause\r
- * @return EntityList mit den gematchten Entities\r
- * @exception StorageObjectException\r
- */\r
- public EntityList selectByWhereClause(String where)\r
- throws StorageObjectFailure\r
- {\r
- return selectByWhereClause(where, 0);\r
- }\r
-\r
-\r
- /**\r
- * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.\r
- * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.\r
- *\r
- * @param wc where-Clause\r
- * @param offset ab welchem Datensatz.\r
- * @return EntityList mit den gematchten Entities\r
- * @exception StorageObjectException\r
- */\r
- public EntityList selectByWhereClause(String whereClause, int offset)\r
- throws StorageObjectFailure\r
- {\r
- return selectByWhereClause(whereClause, null, offset);\r
- }\r
-\r
-\r
- /**\r
- * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.\r
- * Also offset wird der erste Datensatz genommen.\r
- * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.\r
- *\r
- * @param wc where-Clause\r
- * @param ob orderBy-Clause\r
- * @return EntityList mit den gematchten Entities\r
- * @exception StorageObjectException\r
- */\r
-\r
- public EntityList selectByWhereClause(String where, String order)\r
- throws StorageObjectFailure {\r
- return selectByWhereClause(where, order, 0);\r
- }\r
-\r
-\r
- /**\r
- * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.\r
- * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.\r
- *\r
- * @param wc where-Clause\r
- * @param ob orderBy-Clause\r
- * @param offset ab welchem Datensatz\r
- * @return EntityList mit den gematchten Entities\r
- * @exception StorageObjectException\r
- */\r
-\r
- public EntityList selectByWhereClause(String whereClause, String orderBy, int offset)\r
- throws StorageObjectFailure {\r
- return selectByWhereClause(whereClause, orderBy, offset, defaultLimit);\r
- }\r
-\r
-\r
- /**\r
- * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.\r
- * @param wc where-Clause\r
- * @param ob orderBy-Clause\r
- * @param offset ab welchem Datensatz\r
- * @param limit wieviele Datens?tze\r
- * @return EntityList mit den gematchten Entities\r
- * @exception StorageObjectException\r
- */\r
-\r
- public EntityList selectByWhereClause(String wc, String ob, int offset,\r
- int limit) throws\r
- StorageObjectFailure {\r
-\r
- // check o_store for entitylist\r
- if (StoreUtil.implementsStorableObject(theEntityClass)) {\r
- StoreIdentifier search_sid =\r
- new StoreIdentifier(theEntityClass,\r
- StoreContainerType.STOC_TYPE_ENTITYLIST,\r
- StoreUtil.getEntityListUniqueIdentifierFor(\r
- theTable, wc, ob, offset, limit));\r
- EntityList hit = (EntityList) o_store.use(search_sid);\r
- if (hit != null) {\r
- theLog.printDebugInfo("CACHE (hit): " + search_sid.toString());\r
- return hit;\r
- }\r
- }\r
-\r
- // local\r
- EntityList theReturnList = null;\r
- Connection con = null;\r
- Statement stmt = null;\r
- ResultSet rs;\r
- int offsetCount = 0, count = 0;\r
-\r
- // build sql-statement\r
-\r
- /** @todo count sql string should only be assembled if we really count\r
- * see below at the end of method //rk */\r
-\r
- if (wc != null && wc.length() == 0) {\r
- wc = null;\r
- }\r
- StringBuffer countSql = new StringBuffer("select count(*) from ").append(\r
- theTable);\r
- StringBuffer selectSql = new StringBuffer("select * from ").append(theTable);\r
- if (wc != null) {\r
- selectSql.append(" where ").append(wc);\r
- countSql.append(" where ").append(wc);\r
- }\r
- if (ob != null && ! (ob.length() == 0)) {\r
- selectSql.append(" order by ").append(ob);\r
- }\r
- if (theAdaptor.hasLimit()) {\r
- if (limit > -1 && offset > -1) {\r
- selectSql.append(" LIMIT ").append(limit).append(" OFFSET ").append(offset);\r
- }\r
- }\r
-\r
- // execute sql\r
- try {\r
- con = getPooledCon();\r
- stmt = con.createStatement();\r
-\r
- // selecting...\r
- rs = executeSql(stmt, selectSql.toString());\r
- if (rs != null) {\r
- if (!evaluatedMetaData)\r
- evalMetaData(rs.getMetaData());\r
-\r
- theReturnList = new EntityList();\r
- Entity theResultEntity;\r
- while (rs.next()) {\r
- theResultEntity = makeEntityFromResultSet(rs);\r
- theReturnList.add(theResultEntity);\r
- offsetCount++;\r
- }\r
- rs.close();\r
- }\r
-\r
- // making entitylist infos\r
- if (! (theAdaptor.hasLimit()))\r
- count = offsetCount;\r
-\r
- if (theReturnList != null) {\r
- // now we decide if we have to know an overall count...\r
- count = offsetCount;\r
- if (limit > -1 && offset > -1) {\r
- if (offsetCount == limit) {\r
- /** @todo counting should be deffered to entitylist\r
- * getSize() should be used */\r
- rs = executeSql(stmt, countSql.toString());\r
- if (rs != null) {\r
- if (rs.next())\r
- count = rs.getInt(1);\r
- rs.close();\r
- }\r
- else\r
- theLog.printError("Could not count: " + countSql);\r
- }\r
- }\r
- theReturnList.setCount(count);\r
- theReturnList.setOffset(offset);\r
- theReturnList.setWhere(wc);\r
- theReturnList.setOrder(ob);\r
- theReturnList.setStorage(this);\r
- theReturnList.setLimit(limit);\r
- if (offset >= limit)\r
- theReturnList.setPrevBatch(offset - limit);\r
- if (offset + offsetCount < count)\r
- theReturnList.setNextBatch(offset + limit);\r
- if (StoreUtil.implementsStorableObject(theEntityClass)) {\r
- StoreIdentifier sid = theReturnList.getStoreIdentifier();\r
- theLog.printDebugInfo("CACHE (add): " + sid.toString());\r
- o_store.add(sid);\r
- }\r
- }\r
- }\r
- catch (SQLException sqe) {\r
- throwSQLException(sqe, "selectByWhereClause");\r
- }\r
- finally {\r
- try {\r
- if (con != null)\r
- freeConnection(con, stmt);\r
- }\r
- catch (Throwable t) {\r
- }\r
-\r
- }\r
-\r
- return theReturnList;\r
- }\r
-\r
-\r
- /**\r
- * Bastelt aus einer Zeile der Datenbank ein EntityObjekt.\r
- *\r
- * @param rs Das ResultSetObjekt.\r
- * @return Entity Die Entity.\r
- */\r
- private Entity makeEntityFromResultSet (ResultSet rs)\r
- throws StorageObjectFailure\r
- {\r
- /** @todo OS: get Pkey from ResultSet and consult ObjectStore */\r
- HashMap theResultHash = new HashMap();\r
- String theResult = null;\r
- int theType;\r
- Entity returnEntity = null;\r
- try {\r
- int size = metadataFields.size();\r
- for (int i = 0; i < size; i++) {\r
- // alle durchlaufen bis nix mehr da\r
-\r
- theType = metadataTypes[i];\r
- if (theType == java.sql.Types.LONGVARBINARY) {\r
- InputStreamReader is = (InputStreamReader)rs.getCharacterStream(i + 1);\r
- if (is != null) {\r
- char[] data = new char[32768];\r
- StringBuffer theResultString = new StringBuffer();\r
- int len;\r
- while ((len = is.read(data)) > 0) {\r
- theResultString.append(data, 0, len);\r
- }\r
- is.close();\r
- theResult = theResultString.toString();\r
- }\r
- else {\r
- theResult = null;\r
- }\r
- }\r
- else {\r
- theResult = getValueAsString(rs, (i + 1), theType);\r
- }\r
- if (theResult != null) {\r
- theResultHash.put(metadataFields.get(i), theResult);\r
- }\r
- }\r
- if (theEntityClass != null) {\r
- returnEntity = (Entity)theEntityClass.newInstance();\r
- returnEntity.setValues(theResultHash);\r
- returnEntity.setStorage(myselfDatabase);\r
- if ( returnEntity instanceof StorableObject ) {\r
- theLog.printDebugInfo("CACHE: ( in) " + returnEntity.getId() + " :"+theTable);\r
- o_store.add(((StorableObject)returnEntity).getStoreIdentifier());\r
- }\r
- } else {\r
- throwStorageObjectException("Internal Error: theEntityClass not set!");\r
- }\r
- }\r
- catch (IllegalAccessException e) {\r
- throwStorageObjectException("No access! -- " + e.getMessage());\r
- }\r
- catch (IOException e) {\r
- throwStorageObjectException("IOException! -- " + e.getMessage());\r
- }\r
- catch (InstantiationException e) {\r
- throwStorageObjectException("No Instatiation! -- " + e.getMessage());\r
- }\r
- catch (SQLException sqe) {\r
- throwSQLException(sqe, "makeEntityFromResultSet");\r
- return null;\r
- }\r
- return returnEntity;\r
- }\r
-\r
- /**\r
- * insert-Operator: f?gt eine Entity in die Tabelle ein. Eine Spalte WEBDB_CREATE\r
- * wird automatisch mit dem aktuellen Datum gefuellt.\r
- *\r
- * @param theEntity\r
- * @return der Wert des Primary-keys der eingef?gten Entity\r
- */\r
- public String insert (Entity theEntity) throws StorageObjectFailure {\r
- //cache\r
- invalidatePopupCache();\r
-\r
- // invalidating all EntityLists corresponding with theEntityClass\r
- if ( StoreUtil.implementsStorableObject(theEntityClass) ) {\r
- StoreContainerType stoc_type =\r
- StoreContainerType.valueOf( theEntityClass,\r
- StoreContainerType.STOC_TYPE_ENTITYLIST);\r
- o_store.invalidate(stoc_type);\r
- }\r
-\r
- String returnId = null;\r
- Connection con = null; PreparedStatement pstmt = null;\r
-\r
- try {\r
- ArrayList streamedInput = theEntity.streamedInput();\r
- StringBuffer f = new StringBuffer();\r
- StringBuffer v = new StringBuffer();\r
- String aField, aValue;\r
- boolean firstField = true;\r
- // make sql-string\r
- for (int i = 0; i < getFields().size(); i++) {\r
- aField = (String)getFields().get(i);\r
- if (!aField.equals(thePKeyName)) {\r
- aValue = null;\r
- // sonderfaelle\r
- if (aField.equals("webdb_create") ||\r
- aField.equals("webdb_lastchange")) {\r
- aValue = "NOW()";\r
- }\r
- else {\r
- if (streamedInput != null && streamedInput.contains(aField)) {\r
- aValue = "?";\r
- }\r
- else {\r
- if (theEntity.hasValueForField(aField)) {\r
- aValue = "'" + JDBCStringRoutines.escapeStringLiteral((String)theEntity.getValue(aField)) + "'";\r
- }\r
- }\r
- }\r
- // wenn Wert gegeben, dann einbauen\r
- if (aValue != null) {\r
- if (firstField == false) {\r
- f.append(",");\r
- v.append(",");\r
- }\r
- else {\r
- firstField = false;\r
- }\r
- f.append(aField);\r
- v.append(aValue);\r
- }\r
- }\r
- } // end for\r
- // insert into db\r
- StringBuffer sqlBuf = new StringBuffer("insert into ").append(theTable).append("(").append(f).append(") values (").append(v).append(")");\r
- String sql = sqlBuf.toString();\r
- //theLog.printInfo("INSERT: " + sql);\r
- con = getPooledCon();\r
- con.setAutoCommit(false);\r
- pstmt = con.prepareStatement(sql);\r
- if (streamedInput != null) {\r
- for (int i = 0; i < streamedInput.size(); i++) {\r
- String inputString = (String)theEntity.getValue((String)streamedInput.get(i));\r
- pstmt.setBytes(i + 1, inputString.getBytes());\r
- }\r
- }\r
- int ret = pstmt.executeUpdate();\r
- if(ret == 0){\r
- //insert failed\r
- return null;\r
- }\r
- pstmt = con.prepareStatement(theAdaptor.getLastInsertSQL((Database)myselfDatabase));\r
- ResultSet rs = pstmt.executeQuery();\r
- rs.next();\r
- returnId = rs.getString(1);\r
- theEntity.setId(returnId);\r
- } catch (SQLException sqe) {\r
- throwSQLException(sqe, "insert");\r
- } finally {\r
- try {\r
- con.setAutoCommit(true);\r
- } catch (Exception e) {\r
- ;\r
- }\r
- freeConnection(con, pstmt);\r
- }\r
- /** @todo store entity in o_store */\r
- return returnId;\r
- }\r
-\r
- /**\r
- * update-Operator: aktualisiert eine Entity. Eine Spalte WEBDB_LASTCHANGE\r
- * wird automatisch mit dem aktuellen Datum gefuellt.\r
- *\r
- * @param theEntity\r
- */\r
- public void update (Entity theEntity) throws StorageObjectFailure\r
- {\r
- Connection con = null; PreparedStatement pstmt = null;\r
- /** @todo this is stupid: why do we prepare statement, when we\r
- * throw it away afterwards. should be regular statement\r
- * update/insert could better be one routine called save()\r
- * that chooses to either insert or update depending if we\r
- * have a primary key in the entity. i don't know if we\r
- * still need the streamed input fields. // rk */\r
-\r
- /** @todo extension: check if Entity did change, otherwise we don't need\r
- * the roundtrip to the database */\r
-\r
- /** invalidating corresponding entitylists in o_store*/\r
- if ( StoreUtil.implementsStorableObject(theEntityClass) ) {\r
- StoreContainerType stoc_type =\r
- StoreContainerType.valueOf( theEntityClass,\r
- StoreContainerType.STOC_TYPE_ENTITYLIST);\r
- o_store.invalidate(stoc_type);\r
- }\r
-\r
- ArrayList streamedInput = theEntity.streamedInput();\r
- String id = theEntity.getId();\r
- String aField;\r
- StringBuffer fv = new StringBuffer();\r
- boolean firstField = true;\r
- //cache\r
- invalidatePopupCache();\r
- // build sql statement\r
- for (int i = 0; i < getFields().size(); i++) {\r
- aField = (String)metadataFields.get(i);\r
- // only normal cases\r
- if (!(aField.equals(thePKeyName) || aField.equals("webdb_create") ||\r
- aField.equals("webdb_lastchange") || (streamedInput != null && streamedInput.contains(aField)))) {\r
- if (theEntity.hasValueForField(aField)) {\r
- if (firstField == false) {\r
- fv.append(", ");\r
- }\r
- else {\r
- firstField = false;\r
- }\r
- fv.append(aField).append("='").append(JDBCStringRoutines.escapeStringLiteral((String) theEntity.getValue(aField))).append("'");\r
-\r
-// fv.append(aField).append("='").append(StringUtil.quote((String)theEntity.getValue(aField))).append("'");\r
- }\r
- }\r
- }\r
- StringBuffer sql = new StringBuffer("update ").append(theTable).append(" set ").append(fv);\r
- // exceptions\r
- if (metadataFields.contains("webdb_lastchange")) {\r
- sql.append(",webdb_lastchange=NOW()");\r
- }\r
- // special case: the webdb_create requires the field in yyyy-mm-dd HH:mm\r
- // format so anything extra will be ignored. -mh\r
- if (metadataFields.contains("webdb_create") &&\r
- theEntity.hasValueForField("webdb_create")) {\r
- // minimum of 10 (yyyy-mm-dd)...\r
- if (theEntity.getValue("webdb_create").length() >= 10) {\r
- String dateString = theEntity.getValue("webdb_create");\r
- // if only 10, then add 00:00 so it doesn't throw a ParseException\r
- if (dateString.length() == 10)\r
- dateString=dateString+" 00:00";\r
-\r
- // TimeStamp stuff\r
- try {\r
- java.util.Date d = _dateFormatterIn.parse(dateString);\r
- Timestamp tStamp = new Timestamp(d.getTime());\r
- sql.append(",webdb_create='"+tStamp.toString()+"'");\r
- } catch (ParseException e) {\r
- throw new StorageObjectFailure(e);\r
- }\r
- }\r
- }\r
- if (streamedInput != null) {\r
- for (int i = 0; i < streamedInput.size(); i++) {\r
- sql.append(",").append(streamedInput.get(i)).append("=?");\r
- }\r
- }\r
- sql.append(" where id=").append(id);\r
- //theLog.printInfo("UPDATE: " + sql);\r
- // execute sql\r
- try {\r
- con = getPooledCon();\r
- con.setAutoCommit(false);\r
- pstmt = con.prepareStatement(sql.toString());\r
- if (streamedInput != null) {\r
- for (int i = 0; i < streamedInput.size(); i++) {\r
- String inputString = theEntity.getValue((String)streamedInput.get(i));\r
- pstmt.setBytes(i + 1, inputString.getBytes());\r
- }\r
- }\r
- pstmt.executeUpdate();\r
- }\r
- catch (SQLException sqe) {\r
- throwSQLException(sqe, "update");\r
- }\r
- finally {\r
- try {\r
- con.setAutoCommit(true);\r
- } catch (Exception e) {\r
- ;\r
- }\r
- freeConnection(con, pstmt);\r
- }\r
- }\r
-\r
- /*\r
- * delete-Operator\r
- * @param id des zu loeschenden Datensatzes\r
- * @return boolean liefert true zurueck, wenn loeschen erfolgreich war.\r
- */\r
- public boolean delete (String id) throws StorageObjectFailure {\r
-\r
- invalidatePopupCache();\r
- // ostore send notification\r
- if ( StoreUtil.implementsStorableObject(theEntityClass) ) {\r
- String uniqueId = id;\r
- if ( theEntityClass.equals(StorableObjectEntity.class) )\r
- uniqueId+="@"+theTable;\r
- theLog.printInfo("CACHE: (del) " + id);\r
- StoreIdentifier search_sid =\r
- new StoreIdentifier(theEntityClass, StoreContainerType.STOC_TYPE_ENTITY, uniqueId);\r
- o_store.invalidate(search_sid);\r
- }\r
-\r
- /** @todo could be prepared Statement */\r
- Statement stmt = null; Connection con = null;\r
- int res = 0;\r
- String sql="delete from "+theTable+" where "+thePKeyName+"='"+id+"'";\r
- //theLog.printInfo("DELETE " + sql);\r
- try {\r
- con = getPooledCon(); stmt = con.createStatement();\r
- res = stmt.executeUpdate(sql);\r
- }\r
- catch (SQLException sqe) { throwSQLException(sqe, "delete"); }\r
- finally { freeConnection(con, stmt); }\r
-\r
- return (res > 0) ? true : false;\r
- }\r
-\r
- /* noch nicht implementiert.\r
- * @return immer false\r
- */\r
- public boolean delete (EntityList theEntityList) {\r
- invalidatePopupCache();\r
- return false;\r
- }\r
-\r
- /**\r
- * Diese Methode sollte ueberschrieben werden, wenn fuer die abgeleitete Database-Klasse\r
- * eine SimpleList mit Standard-Popupdaten erzeugt werden koennen soll.\r
- * @return null\r
- */\r
- public SimpleList getPopupData () throws StorageObjectFailure {\r
- return null;\r
- }\r
-\r
- /**\r
- * Holt Daten fuer Popups.\r
- * @param name Name des Feldes.\r
- * @param hasNullValue Wenn true wird eine leerer Eintrag fuer die Popups erzeugt.\r
- * @return SimpleList Gibt freemarker.template.SimpleList zurueck.\r
- */\r
- public SimpleList getPopupData (String name, boolean hasNullValue)\r
- throws StorageObjectFailure {\r
- return getPopupData(name, hasNullValue, null);\r
- }\r
-\r
- /**\r
- * Holt Daten fuer Popups.\r
- * @param name Name des Feldes.\r
- * @param hasNullValue Wenn true wird eine leerer Eintrag fuer die Popups erzeugt.\r
- * @param where Schraenkt die Selektion der Datensaetze ein.\r
- * @return SimpleList Gibt freemarker.template.SimpleList zurueck.\r
- */\r
- public SimpleList getPopupData (String name, boolean hasNullValue, String where) throws StorageObjectFailure {\r
- return getPopupData(name, hasNullValue, where, null);\r
- }\r
-\r
- /**\r
- * Holt Daten fuer Popups.\r
- * @param name Name des Feldes.\r
- * @param hasNullValue Wenn true wird eine leerer Eintrag fuer die Popups erzeugt.\r
- * @param where Schraenkt die Selektion der Datensaetze ein.\r
- * @param order Gibt ein Feld als Sortierkriterium an.\r
- * @return SimpleList Gibt freemarker.template.SimpleList zurueck.\r
- */\r
- public SimpleList getPopupData (String name, boolean hasNullValue, String where, String order) throws StorageObjectFailure {\r
- // caching\r
- if (hasPopupCache && popupCache != null)\r
- return popupCache;\r
- SimpleList simpleList = null;\r
- Connection con = null;\r
- Statement stmt = null;\r
- // build sql\r
- StringBuffer sql = new StringBuffer("select ").append(thePKeyName)\r
- .append(",").append(name).append(" from ")\r
- .append(theTable);\r
- if (where != null && !(where.length() == 0))\r
- sql.append(" where ").append(where);\r
- sql.append(" order by ");\r
- if (order != null && !(order.length() == 0))\r
- sql.append(order);\r
- else\r
- sql.append(name);\r
- // execute sql\r
- try {\r
- con = getPooledCon();\r
- }\r
- catch (Exception e) {\r
- throw new StorageObjectFailure(e);\r
- }\r
- try {\r
- stmt = con.createStatement();\r
- ResultSet rs = executeSql(stmt, sql.toString());\r
-\r
- if (rs != null) {\r
- if (!evaluatedMetaData) get_meta_data();\r
- simpleList = new SimpleList();\r
- // if popup has null-selector\r
- if (hasNullValue) simpleList.add(POPUP_EMTYLINE);\r
-\r
- SimpleHash popupDict;\r
- while (rs.next()) {\r
- popupDict = new SimpleHash();\r
- popupDict.put("key", getValueAsString(rs, 1, thePKeyType));\r
- popupDict.put("value", rs.getString(2));\r
- simpleList.add(popupDict);\r
- }\r
- rs.close();\r
- }\r
- }\r
- catch (Exception e) {\r
- theLog.printError("getPopupData: "+e.getMessage());\r
- throw new StorageObjectFailure(e);\r
- }\r
- finally {\r
- freeConnection(con, stmt);\r
- }\r
-\r
- if (hasPopupCache) popupCache = simpleList;\r
- return simpleList;\r
- }\r
-\r
- /**\r
- * Liefert alle Daten der Tabelle als SimpleHash zurueck. Dies wird verwandt,\r
- * wenn in den Templates ein Lookup-Table benoetigt wird. Sollte nur bei kleinen\r
- * Tabellen Verwendung finden.\r
- * @return SimpleHash mit den Tabellezeilen.\r
- */\r
- public SimpleHash getHashData () {\r
- /** @todo dangerous! this should have a flag to be enabled, otherwise\r
- * very big Hashes could be returned */\r
- if (hashCache == null) {\r
- try {\r
- hashCache = HTMLTemplateProcessor.makeSimpleHash(selectByWhereClause("",\r
- -1));\r
- }\r
- catch (StorageObjectFailure e) {\r
- theLog.printDebugInfo(e.getMessage());\r
- }\r
- }\r
- return hashCache;\r
- }\r
-\r
- /* invalidates the popupCache\r
- */\r
- protected void invalidatePopupCache () {\r
- /** @todo invalidates toooo much */\r
- popupCache = null;\r
- hashCache = null;\r
- }\r
-\r
- /**\r
- * Diese Methode fuehrt den Sqlstring <i>sql</i> aus und timed im Logfile.\r
- * @param stmt Statemnt\r
- * @param sql Sql-String\r
- * @return ResultSet\r
- * @exception StorageObjectException\r
- */\r
- public ResultSet executeSql (Statement stmt, String sql)\r
- throws StorageObjectFailure, SQLException\r
- {\r
- long startTime = System.currentTimeMillis();\r
- ResultSet rs;\r
- try {\r
- rs = stmt.executeQuery(sql);\r
- //theLog.printInfo((System.currentTimeMillis() - startTime) + "ms. for: " + sql);\r
- }\r
- catch (SQLException e)\r
- {\r
- theLog.printDebugInfo("Failed: " + (System.currentTimeMillis() - startTime) + "ms. for: "+ sql);\r
- throw e;\r
- }\r
-\r
- return rs;\r
- }\r
-\r
- /**\r
- * Fuehrt Statement stmt aus und liefert Resultset zurueck. Das SQL-Statment wird\r
- * getimed und geloggt.\r
- * @param stmt PreparedStatement mit der SQL-Anweisung\r
- * @return Liefert ResultSet des Statements zurueck.\r
- * @exception StorageObjectException, SQLException\r
- */\r
- public ResultSet executeSql (PreparedStatement stmt)\r
- throws StorageObjectFailure, SQLException {\r
-\r
- long startTime = (new java.util.Date()).getTime();\r
- ResultSet rs = stmt.executeQuery();\r
- theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms.");\r
- return rs;\r
- }\r
-\r
- /**\r
- * returns the number of rows in the table\r
- */\r
- public int getSize(String where)\r
- throws SQLException,StorageObjectFailure\r
- {\r
- long startTime = System.currentTimeMillis();\r
- String sql = "SELECT Count(*) FROM "+ theTable;\r
- if (where != null && !(where.length() == 0))\r
- sql = sql + " where " + where;\r
- Connection con = null;\r
- Statement stmt = null;\r
- int result = 0;\r
-\r
- try {\r
- con = getPooledCon();\r
- stmt = con.createStatement();\r
- ResultSet rs = executeSql(stmt,sql);\r
- while(rs.next()){\r
- result = rs.getInt(1);\r
- }\r
- }\r
- catch (SQLException e) {\r
- theLog.printError(e.getMessage());\r
- }\r
- finally {\r
- freeConnection(con,stmt);\r
- }\r
- //theLog.printInfo(theTable + " has "+ result +" rows where " + where);\r
- //theLog.printInfo((System.currentTimeMillis() - startTime) + "ms. for: " + sql);\r
- return result;\r
- }\r
-\r
- public int executeUpdate(Statement stmt, String sql)\r
- throws StorageObjectFailure, SQLException\r
- {\r
- int rs;\r
- long startTime = (new java.util.Date()).getTime();\r
- try\r
- {\r
- rs = stmt.executeUpdate(sql);\r
- //theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms. for: " + sql);\r
- }\r
- catch (SQLException e)\r
- {\r
- theLog.printDebugInfo("Failed: " + (new java.util.Date().getTime()\r
- - startTime) + "ms. for: "+ sql);\r
- throw e;\r
- }\r
- return rs;\r
- }\r
-\r
- public int executeUpdate(String sql) throws StorageObjectFailure, SQLException\r
- {\r
- int result=-1;\r
- long startTime = (new java.util.Date()).getTime();\r
- Connection con=null;\r
- PreparedStatement pstmt=null;\r
- try {\r
- con=getPooledCon();\r
- pstmt = con.prepareStatement(sql);\r
- result = pstmt.executeUpdate();\r
- }\r
- catch (Exception e) {\r
- theLog.printDebugInfo("executeUpdate failed: "+e.getMessage());\r
- throw new StorageObjectFailure("executeUpdate failed",e);\r
- }\r
- finally {\r
- freeConnection(con,pstmt);\r
- }\r
- //theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms. for: " + sql);\r
- return result;\r
- }\r
-\r
- /**\r
- * Wertet ResultSetMetaData aus und setzt interne Daten entsprechend\r
- * @param md ResultSetMetaData\r
- * @exception StorageObjectException\r
- */\r
- private void evalMetaData (ResultSetMetaData md)\r
- throws StorageObjectFailure {\r
-\r
- this.evaluatedMetaData = true;\r
- this.metadataFields = new ArrayList();\r
- this.metadataLabels = new ArrayList();\r
- this.metadataNotNullFields = new ArrayList();\r
- try {\r
- int numFields = md.getColumnCount();\r
- this.metadataTypes = new int[numFields];\r
- String aField;\r
- int aType;\r
- for (int i = 1; i <= numFields; i++) {\r
- aField = md.getColumnName(i);\r
- metadataFields.add(aField);\r
- metadataLabels.add(md.getColumnLabel(i));\r
- aType = md.getColumnType(i);\r
- metadataTypes[i - 1] = aType;\r
- if (aField.equals(thePKeyName)) {\r
- thePKeyType = aType; thePKeyIndex = i;\r
- }\r
- if (md.isNullable(i) == ResultSetMetaData.columnNullable) {\r
- metadataNotNullFields.add(aField);\r
- }\r
- }\r
- } catch (SQLException e) {\r
- throwSQLException(e, "evalMetaData");\r
- }\r
- }\r
-\r
- /**\r
- * Wertet die Metadaten eines Resultsets fuer eine Tabelle aus,\r
- * um die alle Columns und Typen einer Tabelle zu ermitteln.\r
- */\r
- private void get_meta_data () throws StorageObjectFailure {\r
- Connection con = null;\r
- PreparedStatement pstmt = null;\r
- String sql = "select * from " + theTable + " where 0=1";\r
- try {\r
- con = getPooledCon();\r
- pstmt = con.prepareStatement(sql);\r
- //theLog.printInfo("METADATA: " + sql);\r
- ResultSet rs = pstmt.executeQuery();\r
- evalMetaData(rs.getMetaData());\r
- rs.close();\r
- } catch (SQLException e) {\r
- throwSQLException(e, "get_meta_data");\r
- } finally {\r
- freeConnection(con, pstmt);\r
- }\r
- }\r
-\r
-\r
- public Connection getPooledCon() throws StorageObjectFailure {\r
- /* @todo , doublecheck but I'm pretty sure that this is unnecessary. -mh\r
- try{\r
- Class.forName("com.codestudio.sql.PoolMan").newInstance();\r
- } catch (Exception e){\r
- throw new StorageObjectException("Could not find the PoolMan Driver"\r
- +e.toString());\r
- }*/\r
- Connection con = null;\r
-\r
- try{\r
- con = SQLManager.getInstance().requestConnection();\r
- }\r
- catch(SQLException e){\r
- theLog.printError("could not connect to the database "+e.getMessage());\r
- System.err.println("could not connect to the database "+e.getMessage());\r
- throw new StorageObjectFailure("Could not connect to the database",e);\r
- }\r
-\r
- return con;\r
- }\r
-\r
- public void freeConnection (Connection con, Statement stmt) throws StorageObjectFailure {\r
- SQLManager.closeStatement(stmt);\r
- SQLManager.getInstance().returnConnection(con);\r
- }\r
-\r
- /**\r
- * Wertet SQLException aus und wirft dannach eine StorageObjectException\r
- * @param sqe SQLException\r
- * @param wo Funktonsname, in der die SQLException geworfen wurde\r
- * @exception StorageObjectException\r
- */\r
- protected void throwSQLException (SQLException sqe, String wo) \r
- throws StorageObjectFailure {\r
- String state = "";\r
- String message = "";\r
- int vendor = 0;\r
- if (sqe != null) {\r
- state = sqe.getSQLState();\r
- message = sqe.getMessage();\r
- vendor = sqe.getErrorCode();\r
- }\r
- theLog.printError(state + ": " + vendor + " : " + message + " Funktion: "\r
- + wo);\r
- throw new StorageObjectFailure(\r
- (sqe == null) ? "undefined sql exception" :sqe.getMessage(),sqe\r
- );\r
- }\r
-\r
- protected void _throwStorageObjectException (Exception e, String wo)\r
- throws StorageObjectFailure {\r
-\r
- if (e != null) {\r
- theLog.printError(e.getMessage()+ wo);\r
- throw new StorageObjectFailure(wo, e);\r
- }\r
- else {\r
- theLog.printError(wo);\r
- throw new StorageObjectFailure(wo,null);\r
- }\r
-\r
- }\r
-\r
- /**\r
- * Loggt Fehlermeldung mit dem Parameter Message und wirft dannach\r
- * eine StorageObjectException\r
- * @param message Nachricht mit dem Fehler\r
- * @exception StorageObjectException\r
- */\r
- void throwStorageObjectException (String message)\r
- throws StorageObjectFailure {\r
- _throwStorageObjectException(null, message);\r
- }\r
-\r
-}\r
-\r
-\r
-\r
+/*
+ * Copyright (C) 2001, 2002 The Mir-coders group
+ *
+ * This file is part of Mir.
+ *
+ * Mir is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Mir is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Mir; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * In addition, as a special exception, The Mir-coders gives permission to link
+ * the code of this program with the com.oreilly.servlet library, any library
+ * licensed under the Apache Software License, The Sun (tm) Java Advanced
+ * Imaging library (JAI), The Sun JIMI library (or with modified versions of
+ * the above that use the same license as the above), and distribute linked
+ * combinations including the two. You must obey the GNU General Public
+ * License in all respects for all of the code used other than the above
+ * mentioned libraries. If you modify this file, you may extend this exception
+ * to your version of the file, but you are not obligated to do so. If you do
+ * not wish to do so, delete this exception statement from your version.
+ */
+package mir.storage;
+
+import com.codestudio.util.SQLManager;
+
+import freemarker.template.SimpleHash;
+import freemarker.template.SimpleList;
+
+import mir.config.MirPropertiesConfiguration;
+
+import mir.config.MirPropertiesConfiguration.PropertiesConfigExc;
+
+import mir.entity.Entity;
+import mir.entity.EntityList;
+import mir.entity.StorableObjectEntity;
+
+import mir.misc.HTMLTemplateProcessor;
+import mir.misc.Logfile;
+import mir.misc.StringUtil;
+
+import mir.storage.store.ObjectStore;
+import mir.storage.store.StorableObject;
+import mir.storage.store.StoreContainerType;
+import mir.storage.store.StoreIdentifier;
+import mir.storage.store.StoreUtil;
+
+import mir.util.JDBCStringRoutines;
+
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.ResultSetMetaData;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.sql.Timestamp;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.GregorianCalendar;
+import java.util.HashMap;
+
+
+/**
+ * Diese Klasse implementiert die Zugriffsschicht auf die Datenbank.
+ * Alle Projektspezifischen Datenbankklassen erben von dieser Klasse.
+ * In den Unterklassen wird im Minimalfall nur die Tabelle angegeben.
+ * Im Konfigurationsfile findet sich eine Verweis auf den verwendeten
+ * Treiber, Host, User und Passwort, ueber den der Zugriff auf die
+ * Datenbank erfolgt.
+ *
+ * @version $Id: Database.java,v 1.32 2003/01/28 21:47:42 idfx Exp $
+ * @author rk
+ *
+ */
+public class Database implements StorageObject {
+ private static Class GENERIC_ENTITY_CLASS = null;
+ private static Class STORABLE_OBJECT_ENTITY_CLASS = null;
+ private static SimpleHash POPUP_EMTYLINE = new SimpleHash();
+ protected static final ObjectStore o_store = ObjectStore.getInstance();
+ private static final int _millisPerHour = 60 * 60 * 1000;
+ private static final int _millisPerMinute = 60 * 1000;
+
+ static {
+ // always same object saves a little space
+ POPUP_EMTYLINE.put("key", "");
+ POPUP_EMTYLINE.put("value", "--");
+
+ try {
+ GENERIC_ENTITY_CLASS = Class.forName("mir.entity.StorableObjectEntity");
+ STORABLE_OBJECT_ENTITY_CLASS =
+ Class.forName("mir.entity.StorableObjectEntity");
+ } catch (Exception e) {
+ System.err.println("FATAL: Database.java could not initialize" +
+ e.getMessage());
+ }
+ }
+
+ protected MirPropertiesConfiguration configuration;
+ protected String theTable;
+ protected String theCoreTable = null;
+ protected String thePKeyName = "id";
+ protected int thePKeyType;
+ protected int thePKeyIndex;
+ protected boolean evaluatedMetaData = false;
+ protected ArrayList metadataFields;
+ protected ArrayList metadataLabels;
+ protected ArrayList metadataNotNullFields;
+ protected int[] metadataTypes;
+ protected Class theEntityClass;
+ protected StorageObject myselfDatabase;
+ protected SimpleList popupCache = null;
+ protected boolean hasPopupCache = false;
+ protected SimpleHash hashCache = null;
+ protected boolean hasTimestamp = true;
+ private String database_driver;
+ private String database_url;
+ private int defaultLimit;
+ protected DatabaseAdaptor theAdaptor;
+ protected Logfile theLog;
+ private SimpleDateFormat _dateFormatterOut =
+ new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+ private SimpleDateFormat _dateFormatterIn =
+ new SimpleDateFormat("yyyy-MM-dd HH:mm");
+ private Calendar _cal = new GregorianCalendar();
+
+ /**
+ * Kontruktor bekommt den Filenamen des Konfigurationsfiles ?bergeben.
+ * Aus diesem file werden <code>Database.Logfile</code>,
+ * <code>Database.Username</code>,<code>Database.Password</code>,
+ * <code>Database.Host</code> und <code>Database.Adaptor</code>
+ * ausgelesen und ein Broker f?r die Verbindugen zur Datenbank
+ * erzeugt.
+ *
+ * @param String confFilename Dateiname der Konfigurationsdatei
+ */
+ public Database() throws StorageObjectFailure {
+ try {
+ configuration = MirPropertiesConfiguration.instance();
+ } catch (PropertiesConfigExc e) {
+ throw new StorageObjectFailure(e);
+ }
+
+ theLog =
+ Logfile.getInstance(configuration.getStringWithHome("Database.Logfile"));
+
+ String theAdaptorName = configuration.getString("Database.Adaptor");
+ defaultLimit = Integer.parseInt(configuration.getString("Database.Limit"));
+
+ try {
+ theEntityClass = GENERIC_ENTITY_CLASS;
+ theAdaptor =
+ (DatabaseAdaptor) Class.forName(theAdaptorName).newInstance();
+ } catch (Exception e) {
+ theLog.printError("Error in Database() constructor with " +
+ theAdaptorName + " -- " + e.getMessage());
+ throw new StorageObjectFailure("Error in Database() constructor.", e);
+ }
+ }
+
+ /**
+ * Liefert die Entity-Klasse zur?ck, in der eine Datenbankzeile gewrappt
+ * wird. Wird die Entity-Klasse durch die erbende Klasse nicht ?berschrieben,
+ * wird eine mir.entity.GenericEntity erzeugt.
+ *
+ * @return Class-Objekt der Entity
+ */
+ public java.lang.Class getEntityClass() {
+ return theEntityClass;
+ }
+
+ /**
+ * Liefert die Standardbeschr?nkung von select-Statements zur?ck, also
+ * wieviel Datens?tze per Default selektiert werden.
+ *
+ * @return Standard-Anzahl der Datens?tze
+ */
+ public int getLimit() {
+ return defaultLimit;
+ }
+
+ /**
+ * Liefert den Namen des Primary-Keys zur?ck. Wird die Variable nicht von
+ * der erbenden Klasse ?berschrieben, so ist der Wert <code>PKEY</code>
+ * @return Name des Primary-Keys
+ */
+ public String getIdName() {
+ return thePKeyName;
+ }
+
+ /**
+ * Liefert den Namen der Tabelle, auf das sich das Datenbankobjekt bezieht.
+ *
+ * @return Name der Tabelle
+ */
+ public String getTableName() {
+ return theTable;
+ }
+
+ /*
+ * Dient dazu vererbte Tabellen bei objectrelationalen DBMS
+ * zu speichern, wenn die id einer Tabelle in der parenttabelle verwaltet
+ * wird.
+ * @return liefert theCoreTabel als String zurueck, wenn gesetzt, sonst
+ * the Table
+ */
+ public String getCoreTable() {
+ if (theCoreTable != null) {
+ return theCoreTable;
+ } else {
+ return theTable;
+ }
+ }
+
+ /**
+ * Liefert Feldtypen der Felder der Tabelle zurueck (s.a. java.sql.Types)
+ * @return int-Array mit den Typen der Felder
+ * @exception StorageObjectException
+ */
+ public int[] getTypes() throws StorageObjectFailure {
+ if (metadataTypes == null) {
+ get_meta_data();
+ }
+
+ return metadataTypes;
+ }
+
+ /**
+ * Liefert eine Liste der Labels der Tabellenfelder
+ * @return ArrayListe mit Labeln
+ * @exception StorageObjectException
+ */
+ public ArrayList getLabels() throws StorageObjectFailure {
+ if (metadataLabels == null) {
+ get_meta_data();
+ }
+
+ return metadataLabels;
+ }
+
+ /**
+ * Liefert eine Liste der Felder der Tabelle
+ * @return ArrayList mit Feldern
+ * @exception StorageObjectException
+ */
+ public ArrayList getFields() throws StorageObjectFailure {
+ if (metadataFields == null) {
+ get_meta_data();
+ }
+
+ return metadataFields;
+ }
+
+ /*
+ * Gets value out of ResultSet according to type and converts to String
+ * @param inValue Wert aus ResultSet.
+ * @param aType Datenbanktyp.
+ * @return liefert den Wert als String zurueck. Wenn keine Umwandlung moeglich
+ * dann /unsupported value/
+ */
+ private String getValueAsString(ResultSet rs, int valueIndex, int aType)
+ throws StorageObjectFailure {
+ String outValue = null;
+
+ if (rs != null) {
+ try {
+ switch (aType) {
+ case java.sql.Types.BIT:
+ outValue = (rs.getBoolean(valueIndex) == true) ? "1" : "0";
+
+ break;
+
+ case java.sql.Types.INTEGER:
+ case java.sql.Types.SMALLINT:
+ case java.sql.Types.TINYINT:
+ case java.sql.Types.BIGINT:
+
+ int out = rs.getInt(valueIndex);
+
+ if (!rs.wasNull()) {
+ outValue = new Integer(out).toString();
+ }
+
+ break;
+
+ case java.sql.Types.NUMERIC:
+
+ /** @todo Numeric can be float or double depending upon
+ * metadata.getScale() / especially with oracle */
+ long outl = rs.getLong(valueIndex);
+
+ if (!rs.wasNull()) {
+ outValue = new Long(outl).toString();
+ }
+
+ break;
+
+ case java.sql.Types.REAL:
+
+ float tempf = rs.getFloat(valueIndex);
+
+ if (!rs.wasNull()) {
+ tempf *= 10;
+ tempf += 0.5;
+
+ int tempf_int = (int) tempf;
+ tempf = (float) tempf_int;
+ tempf /= 10;
+ outValue = "" + tempf;
+ outValue = outValue.replace('.', ',');
+ }
+
+ break;
+
+ case java.sql.Types.DOUBLE:
+
+ double tempd = rs.getDouble(valueIndex);
+
+ if (!rs.wasNull()) {
+ tempd *= 10;
+ tempd += 0.5;
+
+ int tempd_int = (int) tempd;
+ tempd = (double) tempd_int;
+ tempd /= 10;
+ outValue = "" + tempd;
+ outValue = outValue.replace('.', ',');
+ }
+
+ break;
+
+ case java.sql.Types.CHAR:
+ case java.sql.Types.VARCHAR:
+ case java.sql.Types.LONGVARCHAR:
+ outValue = rs.getString(valueIndex);
+
+ break;
+
+ case java.sql.Types.LONGVARBINARY:
+ outValue = rs.getString(valueIndex);
+
+ break;
+
+ case java.sql.Types.TIMESTAMP:
+
+ // it's important to use Timestamp here as getting it
+ // as a string is undefined and is only there for debugging
+ // according to the API. we can make it a string through formatting.
+ // -mh
+ Timestamp timestamp = (rs.getTimestamp(valueIndex));
+
+ if (!rs.wasNull()) {
+ java.util.Date date = new java.util.Date(timestamp.getTime());
+ outValue = _dateFormatterOut.format(date);
+ _cal.setTime(date);
+
+ int offset =
+ _cal.get(Calendar.ZONE_OFFSET) + _cal.get(Calendar.DST_OFFSET);
+ String tzOffset =
+ StringUtil.zeroPaddingNumber(offset / _millisPerHour, 2, 2);
+ outValue = outValue + "+" + tzOffset;
+ }
+
+ break;
+
+ default:
+ outValue = "<unsupported value>";
+ theLog.printWarning("Unsupported Datatype: at " + valueIndex + " (" +
+ aType + ")");
+ }
+ } catch (SQLException e) {
+ throw new StorageObjectFailure("Could not get Value out of Resultset -- ",
+ e);
+ }
+ }
+
+ return outValue;
+ }
+
+ /*
+ * select-Operator um einen Datensatz zu bekommen.
+ * @param id Primaerschluessel des Datensatzes.
+ * @return liefert EntityObject des gefundenen Datensatzes oder null.
+ */
+ public Entity selectById(String id) throws StorageObjectExc {
+ if ((id == null) || id.equals("")) {
+ throw new StorageObjectExc("id war null");
+ }
+
+ // ask object store for object
+ if (StoreUtil.implementsStorableObject(theEntityClass)) {
+ String uniqueId = id;
+
+ if (theEntityClass.equals(StorableObjectEntity.class)) {
+ uniqueId += ("@" + theTable);
+ }
+
+ StoreIdentifier search_sid =
+ new StoreIdentifier(theEntityClass, uniqueId);
+ theLog.printDebugInfo("CACHE: (dbg) looking for sid " +
+ search_sid.toString());
+
+ Entity hit = (Entity) o_store.use(search_sid);
+
+ if (hit != null) {
+ return hit;
+ }
+ }
+
+ Statement stmt = null;
+ Connection con = getPooledCon();
+ Entity returnEntity = null;
+
+ try {
+ ResultSet rs;
+
+ /** @todo better prepared statement */
+ String selectSql =
+ "select * from " + theTable + " where " + thePKeyName + "=" + id;
+ stmt = con.createStatement();
+ rs = executeSql(stmt, selectSql);
+
+ if (rs != null) {
+ if (evaluatedMetaData == false) {
+ evalMetaData(rs.getMetaData());
+ }
+
+ if (rs.next()) {
+ returnEntity = makeEntityFromResultSet(rs);
+ } else {
+ theLog.printDebugInfo("Keine daten fuer id: " + id + "in Tabelle" +
+ theTable);
+ }
+
+ rs.close();
+ } else {
+ theLog.printDebugInfo("No Data for Id " + id + " in Table " + theTable);
+ }
+ } catch (SQLException sqe) {
+ throwSQLException(sqe, "selectById");
+
+ return null;
+ } catch (NumberFormatException e) {
+ theLog.printError("ID ist keine Zahl: " + id);
+ } finally {
+ freeConnection(con, stmt);
+ }
+
+ /** @todo OS: Entity should be saved in ostore */
+ return returnEntity;
+ }
+
+ /**
+ * select-Operator um Datensaetze zu bekommen, die key = value erfuellen.
+ * @param key Datenbankfeld der Bedingung.
+ * @param value Wert die der key anehmen muss.
+ * @return EntityList mit den gematchten Entities
+ */
+ public EntityList selectByFieldValue(String aField, String aValue)
+ throws StorageObjectFailure {
+ return selectByFieldValue(aField, aValue, 0);
+ }
+
+ /**
+ * select-Operator um Datensaetze zu bekommen, die key = value erfuellen.
+ * @param key Datenbankfeld der Bedingung.
+ * @param value Wert die der key anehmen muss.
+ * @param offset Gibt an ab welchem Datensatz angezeigt werden soll.
+ * @return EntityList mit den gematchten Entities
+ */
+ public EntityList selectByFieldValue(String aField, String aValue, int offset)
+ throws StorageObjectFailure {
+ return selectByWhereClause(aField + "=" + aValue, offset);
+ }
+
+ /**
+ * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
+ * Also offset wird der erste Datensatz genommen.
+ *
+ * @param wc where-Clause
+ * @return EntityList mit den gematchten Entities
+ * @exception StorageObjectException
+ */
+ public EntityList selectByWhereClause(String where)
+ throws StorageObjectFailure {
+ return selectByWhereClause(where, 0);
+ }
+
+ /**
+ * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
+ * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
+ *
+ * @param wc where-Clause
+ * @param offset ab welchem Datensatz.
+ * @return EntityList mit den gematchten Entities
+ * @exception StorageObjectException
+ */
+ public EntityList selectByWhereClause(String whereClause, int offset)
+ throws StorageObjectFailure {
+ return selectByWhereClause(whereClause, null, offset);
+ }
+
+ /**
+ * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
+ * Also offset wird der erste Datensatz genommen.
+ * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
+ *
+ * @param wc where-Clause
+ * @param ob orderBy-Clause
+ * @return EntityList mit den gematchten Entities
+ * @exception StorageObjectException
+ */
+ public EntityList selectByWhereClause(String where, String order)
+ throws StorageObjectFailure {
+ return selectByWhereClause(where, order, 0);
+ }
+
+ /**
+ * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
+ * Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
+ *
+ * @param wc where-Clause
+ * @param ob orderBy-Clause
+ * @param offset ab welchem Datensatz
+ * @return EntityList mit den gematchten Entities
+ * @exception StorageObjectException
+ */
+ public EntityList selectByWhereClause(String whereClause, String orderBy,
+ int offset) throws StorageObjectFailure {
+ return selectByWhereClause(whereClause, orderBy, offset, defaultLimit);
+ }
+
+ /**
+ * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
+ * @param wc where-Clause
+ * @param ob orderBy-Clause
+ * @param offset ab welchem Datensatz
+ * @param limit wieviele Datens?tze
+ * @return EntityList mit den gematchten Entities
+ * @exception StorageObjectException
+ */
+ public EntityList selectByWhereClause(String wc, String ob, int offset,
+ int limit) throws StorageObjectFailure {
+ // check o_store for entitylist
+ if (StoreUtil.implementsStorableObject(theEntityClass)) {
+ StoreIdentifier search_sid =
+ new StoreIdentifier(theEntityClass,
+ StoreContainerType.STOC_TYPE_ENTITYLIST,
+ StoreUtil.getEntityListUniqueIdentifierFor(theTable, wc, ob, offset,
+ limit));
+ EntityList hit = (EntityList) o_store.use(search_sid);
+
+ if (hit != null) {
+ theLog.printDebugInfo("CACHE (hit): " + search_sid.toString());
+
+ return hit;
+ }
+ }
+
+ // local
+ EntityList theReturnList = null;
+ Connection con = null;
+ Statement stmt = null;
+ ResultSet rs;
+ int offsetCount = 0;
+ int count = 0;
+
+ // build sql-statement
+
+ /** @todo count sql string should only be assembled if we really count
+ * see below at the end of method //rk */
+ if ((wc != null) && (wc.length() == 0)) {
+ wc = null;
+ }
+
+ StringBuffer countSql =
+ new StringBuffer("select count(*) from ").append(theTable);
+ StringBuffer selectSql =
+ new StringBuffer("select * from ").append(theTable);
+
+ if (wc != null) {
+ selectSql.append(" where ").append(wc);
+ countSql.append(" where ").append(wc);
+ }
+
+ if ((ob != null) && !(ob.length() == 0)) {
+ selectSql.append(" order by ").append(ob);
+ }
+
+ if (theAdaptor.hasLimit()) {
+ if ((limit > -1) && (offset > -1)) {
+ selectSql.append(" LIMIT ").append(limit).append(" OFFSET ").append(offset);
+ }
+ }
+
+ // execute sql
+ try {
+ con = getPooledCon();
+ stmt = con.createStatement();
+
+ // selecting...
+ rs = executeSql(stmt, selectSql.toString());
+
+ if (rs != null) {
+ if (!evaluatedMetaData) {
+ evalMetaData(rs.getMetaData());
+ }
+
+ theReturnList = new EntityList();
+
+ Entity theResultEntity;
+
+ while (rs.next()) {
+ theResultEntity = makeEntityFromResultSet(rs);
+ theReturnList.add(theResultEntity);
+ offsetCount++;
+ }
+
+ rs.close();
+ }
+
+ // making entitylist infos
+ if (!(theAdaptor.hasLimit())) {
+ count = offsetCount;
+ }
+
+ if (theReturnList != null) {
+ // now we decide if we have to know an overall count...
+ count = offsetCount;
+
+ if ((limit > -1) && (offset > -1)) {
+ if (offsetCount == limit) {
+ /** @todo counting should be deffered to entitylist
+ * getSize() should be used */
+ rs = executeSql(stmt, countSql.toString());
+
+ if (rs != null) {
+ if (rs.next()) {
+ count = rs.getInt(1);
+ }
+
+ rs.close();
+ } else {
+ theLog.printError("Could not count: " + countSql);
+ }
+ }
+ }
+
+ theReturnList.setCount(count);
+ theReturnList.setOffset(offset);
+ theReturnList.setWhere(wc);
+ theReturnList.setOrder(ob);
+ theReturnList.setStorage(this);
+ theReturnList.setLimit(limit);
+
+ if (offset >= limit) {
+ theReturnList.setPrevBatch(offset - limit);
+ }
+
+ if ((offset + offsetCount) < count) {
+ theReturnList.setNextBatch(offset + limit);
+ }
+
+ if (StoreUtil.implementsStorableObject(theEntityClass)) {
+ StoreIdentifier sid = theReturnList.getStoreIdentifier();
+ theLog.printDebugInfo("CACHE (add): " + sid.toString());
+ o_store.add(sid);
+ }
+ }
+ } catch (SQLException sqe) {
+ throwSQLException(sqe, "selectByWhereClause");
+ } finally {
+ try {
+ if (con != null) {
+ freeConnection(con, stmt);
+ }
+ } catch (Throwable t) {
+ }
+ }
+
+ return theReturnList;
+ }
+
+ /**
+ * Bastelt aus einer Zeile der Datenbank ein EntityObjekt.
+ *
+ * @param rs Das ResultSetObjekt.
+ * @return Entity Die Entity.
+ */
+ private Entity makeEntityFromResultSet(ResultSet rs)
+ throws StorageObjectFailure {
+ /** @todo OS: get Pkey from ResultSet and consult ObjectStore */
+ HashMap theResultHash = new HashMap();
+ String theResult = null;
+ int theType;
+ Entity returnEntity = null;
+
+ try {
+ int size = metadataFields.size();
+
+ for (int i = 0; i < size; i++) {
+ // alle durchlaufen bis nix mehr da
+ theType = metadataTypes[i];
+
+ if (theType == java.sql.Types.LONGVARBINARY) {
+ InputStreamReader is =
+ (InputStreamReader) rs.getCharacterStream(i + 1);
+
+ if (is != null) {
+ char[] data = new char[32768];
+ StringBuffer theResultString = new StringBuffer();
+ int len;
+
+ while ((len = is.read(data)) > 0) {
+ theResultString.append(data, 0, len);
+ }
+
+ is.close();
+ theResult = theResultString.toString();
+ } else {
+ theResult = null;
+ }
+ } else {
+ theResult = getValueAsString(rs, (i + 1), theType);
+ }
+
+ if (theResult != null) {
+ theResultHash.put(metadataFields.get(i), theResult);
+ }
+ }
+
+ if (theEntityClass != null) {
+ returnEntity = (Entity) theEntityClass.newInstance();
+ returnEntity.setValues(theResultHash);
+ returnEntity.setStorage(myselfDatabase);
+
+ if (returnEntity instanceof StorableObject) {
+ theLog.printDebugInfo("CACHE: ( in) " + returnEntity.getId() + " :" +
+ theTable);
+ o_store.add(((StorableObject) returnEntity).getStoreIdentifier());
+ }
+ } else {
+ throwStorageObjectException("Internal Error: theEntityClass not set!");
+ }
+ } catch (IllegalAccessException e) {
+ throwStorageObjectException("No access! -- " + e.getMessage());
+ } catch (IOException e) {
+ throwStorageObjectException("IOException! -- " + e.getMessage());
+ } catch (InstantiationException e) {
+ throwStorageObjectException("No Instatiation! -- " + e.getMessage());
+ } catch (SQLException sqe) {
+ throwSQLException(sqe, "makeEntityFromResultSet");
+
+ return null;
+ }
+
+ return returnEntity;
+ }
+
+ /**
+ * insert-Operator: f?gt eine Entity in die Tabelle ein. Eine Spalte WEBDB_CREATE
+ * wird automatisch mit dem aktuellen Datum gefuellt.
+ *
+ * @param theEntity
+ * @return der Wert des Primary-keys der eingef?gten Entity
+ */
+ public String insert(Entity theEntity) throws StorageObjectFailure {
+ //cache
+ invalidatePopupCache();
+
+ // invalidating all EntityLists corresponding with theEntityClass
+ if (StoreUtil.implementsStorableObject(theEntityClass)) {
+ StoreContainerType stoc_type =
+ StoreContainerType.valueOf(theEntityClass,
+ StoreContainerType.STOC_TYPE_ENTITYLIST);
+ o_store.invalidate(stoc_type);
+ }
+
+ String returnId = null;
+ Connection con = null;
+ PreparedStatement pstmt = null;
+
+ try {
+ ArrayList streamedInput = theEntity.streamedInput();
+ StringBuffer f = new StringBuffer();
+ StringBuffer v = new StringBuffer();
+ String aField;
+ String aValue;
+ boolean firstField = true;
+
+ // make sql-string
+ for (int i = 0; i < getFields().size(); i++) {
+ aField = (String) getFields().get(i);
+
+ if (!aField.equals(thePKeyName)) {
+ aValue = null;
+
+ // sonderfaelle
+ if (aField.equals("webdb_create") ||
+ aField.equals("webdb_lastchange")) {
+ aValue = "NOW()";
+ } else {
+ if ((streamedInput != null) && streamedInput.contains(aField)) {
+ aValue = "?";
+ } else {
+ if (theEntity.hasValueForField(aField)) {
+ aValue =
+ "'" +
+ JDBCStringRoutines.escapeStringLiteral((String) theEntity.getValue(
+ aField)) + "'";
+ }
+ }
+ }
+
+ // wenn Wert gegeben, dann einbauen
+ if (aValue != null) {
+ if (firstField == false) {
+ f.append(",");
+ v.append(",");
+ } else {
+ firstField = false;
+ }
+
+ f.append(aField);
+ v.append(aValue);
+ }
+ }
+ }
+ // end for
+
+ // insert into db
+ StringBuffer sqlBuf =
+ new StringBuffer("insert into ").append(theTable).append("(").append(f)
+ .append(") values (").append(v).append(")");
+ String sql = sqlBuf.toString();
+
+ //theLog.printInfo("INSERT: " + sql);
+ con = getPooledCon();
+ con.setAutoCommit(false);
+ pstmt = con.prepareStatement(sql);
+
+ if (streamedInput != null) {
+ for (int i = 0; i < streamedInput.size(); i++) {
+ String inputString =
+ (String) theEntity.getValue((String) streamedInput.get(i));
+ pstmt.setBytes(i + 1, inputString.getBytes());
+ }
+ }
+
+ int ret = pstmt.executeUpdate();
+
+ if (ret == 0) {
+ //insert failed
+ return null;
+ }
+
+ pstmt =
+ con.prepareStatement(theAdaptor.getLastInsertSQL(
+ (Database) myselfDatabase));
+
+ ResultSet rs = pstmt.executeQuery();
+ rs.next();
+ returnId = rs.getString(1);
+ theEntity.setId(returnId);
+ } catch (SQLException sqe) {
+ throwSQLException(sqe, "insert");
+ } finally {
+ try {
+ con.setAutoCommit(true);
+ } catch (Exception e) {
+ ;
+ }
+
+ freeConnection(con, pstmt);
+ }
+
+ /** @todo store entity in o_store */
+ return returnId;
+ }
+
+ /**
+ * update-Operator: aktualisiert eine Entity. Eine Spalte WEBDB_LASTCHANGE
+ * wird automatisch mit dem aktuellen Datum gefuellt.
+ *
+ * @param theEntity
+ */
+ public void update(Entity theEntity) throws StorageObjectFailure {
+ Connection con = null;
+ PreparedStatement pstmt = null;
+
+ /** @todo this is stupid: why do we prepare statement, when we
+ * throw it away afterwards. should be regular statement
+ * update/insert could better be one routine called save()
+ * that chooses to either insert or update depending if we
+ * have a primary key in the entity. i don't know if we
+ * still need the streamed input fields. // rk */
+ /** @todo extension: check if Entity did change, otherwise we don't need
+ * the roundtrip to the database */
+ /** invalidating corresponding entitylists in o_store*/
+ if (StoreUtil.implementsStorableObject(theEntityClass)) {
+ StoreContainerType stoc_type =
+ StoreContainerType.valueOf(theEntityClass,
+ StoreContainerType.STOC_TYPE_ENTITYLIST);
+ o_store.invalidate(stoc_type);
+ }
+
+ ArrayList streamedInput = theEntity.streamedInput();
+ String id = theEntity.getId();
+ String aField;
+ StringBuffer fv = new StringBuffer();
+ boolean firstField = true;
+
+ //cache
+ invalidatePopupCache();
+
+ // build sql statement
+ for (int i = 0; i < getFields().size(); i++) {
+ aField = (String) metadataFields.get(i);
+
+ // only normal cases
+ if (!(aField.equals(thePKeyName) || aField.equals("webdb_create") ||
+ aField.equals("webdb_lastchange") ||
+ ((streamedInput != null) && streamedInput.contains(aField)))) {
+ if (theEntity.hasValueForField(aField)) {
+ if (firstField == false) {
+ fv.append(", ");
+ } else {
+ firstField = false;
+ }
+
+ fv.append(aField).append("='")
+ .append(JDBCStringRoutines.escapeStringLiteral(
+ (String) theEntity.getValue(aField))).append("'");
+
+ // fv.append(aField).append("='").append(StringUtil.quote((String)theEntity.getValue(aField))).append("'");
+ }
+ }
+ }
+
+ StringBuffer sql =
+ new StringBuffer("update ").append(theTable).append(" set ").append(fv);
+
+ // exceptions
+ if (metadataFields.contains("webdb_lastchange")) {
+ sql.append(",webdb_lastchange=NOW()");
+ }
+
+ // special case: the webdb_create requires the field in yyyy-mm-dd HH:mm
+ // format so anything extra will be ignored. -mh
+ if (metadataFields.contains("webdb_create") &&
+ theEntity.hasValueForField("webdb_create")) {
+ // minimum of 10 (yyyy-mm-dd)...
+ if (theEntity.getValue("webdb_create").length() >= 10) {
+ String dateString = theEntity.getValue("webdb_create");
+
+ // if only 10, then add 00:00 so it doesn't throw a ParseException
+ if (dateString.length() == 10) {
+ dateString = dateString + " 00:00";
+ }
+
+ // TimeStamp stuff
+ try {
+ java.util.Date d = _dateFormatterIn.parse(dateString);
+ Timestamp tStamp = new Timestamp(d.getTime());
+ sql.append(",webdb_create='" + tStamp.toString() + "'");
+ } catch (ParseException e) {
+ throw new StorageObjectFailure(e);
+ }
+ }
+ }
+
+ if (streamedInput != null) {
+ for (int i = 0; i < streamedInput.size(); i++) {
+ sql.append(",").append(streamedInput.get(i)).append("=?");
+ }
+ }
+
+ sql.append(" where id=").append(id);
+
+ //theLog.printInfo("UPDATE: " + sql);
+ // execute sql
+ try {
+ con = getPooledCon();
+ con.setAutoCommit(false);
+ pstmt = con.prepareStatement(sql.toString());
+
+ if (streamedInput != null) {
+ for (int i = 0; i < streamedInput.size(); i++) {
+ String inputString =
+ theEntity.getValue((String) streamedInput.get(i));
+ pstmt.setBytes(i + 1, inputString.getBytes());
+ }
+ }
+
+ pstmt.executeUpdate();
+ } catch (SQLException sqe) {
+ throwSQLException(sqe, "update");
+ } finally {
+ try {
+ con.setAutoCommit(true);
+ } catch (Exception e) {
+ ;
+ }
+
+ freeConnection(con, pstmt);
+ }
+ }
+
+ /*
+ * delete-Operator
+ * @param id des zu loeschenden Datensatzes
+ * @return boolean liefert true zurueck, wenn loeschen erfolgreich war.
+ */
+ public boolean delete(String id) throws StorageObjectFailure {
+ invalidatePopupCache();
+
+ // ostore send notification
+ if (StoreUtil.implementsStorableObject(theEntityClass)) {
+ String uniqueId = id;
+
+ if (theEntityClass.equals(StorableObjectEntity.class)) {
+ uniqueId += ("@" + theTable);
+ }
+
+ theLog.printInfo("CACHE: (del) " + id);
+
+ StoreIdentifier search_sid =
+ new StoreIdentifier(theEntityClass,
+ StoreContainerType.STOC_TYPE_ENTITY, uniqueId);
+ o_store.invalidate(search_sid);
+ }
+
+ /** @todo could be prepared Statement */
+ Statement stmt = null;
+ Connection con = null;
+ int res = 0;
+ String sql =
+ "delete from " + theTable + " where " + thePKeyName + "='" + id + "'";
+
+ //theLog.printInfo("DELETE " + sql);
+ try {
+ con = getPooledCon();
+ stmt = con.createStatement();
+ res = stmt.executeUpdate(sql);
+ } catch (SQLException sqe) {
+ throwSQLException(sqe, "delete");
+ } finally {
+ freeConnection(con, stmt);
+ }
+
+ return (res > 0) ? true : false;
+ }
+
+ /* noch nicht implementiert.
+ * @return immer false
+ */
+ public boolean delete(EntityList theEntityList) {
+ invalidatePopupCache();
+
+ return false;
+ }
+
+ /**
+ * Diese Methode sollte ueberschrieben werden, wenn fuer die abgeleitete Database-Klasse
+ * eine SimpleList mit Standard-Popupdaten erzeugt werden koennen soll.
+ * @return null
+ */
+ public SimpleList getPopupData() throws StorageObjectFailure {
+ return null;
+ }
+
+ /**
+ * Holt Daten fuer Popups.
+ * @param name Name des Feldes.
+ * @param hasNullValue Wenn true wird eine leerer Eintrag fuer die Popups erzeugt.
+ * @return SimpleList Gibt freemarker.template.SimpleList zurueck.
+ */
+ public SimpleList getPopupData(String name, boolean hasNullValue)
+ throws StorageObjectFailure {
+ return getPopupData(name, hasNullValue, null);
+ }
+
+ /**
+ * Holt Daten fuer Popups.
+ * @param name Name des Feldes.
+ * @param hasNullValue Wenn true wird eine leerer Eintrag fuer die Popups erzeugt.
+ * @param where Schraenkt die Selektion der Datensaetze ein.
+ * @return SimpleList Gibt freemarker.template.SimpleList zurueck.
+ */
+ public SimpleList getPopupData(String name, boolean hasNullValue, String where)
+ throws StorageObjectFailure {
+ return getPopupData(name, hasNullValue, where, null);
+ }
+
+ /**
+ * Holt Daten fuer Popups.
+ * @param name Name des Feldes.
+ * @param hasNullValue Wenn true wird eine leerer Eintrag fuer die Popups erzeugt.
+ * @param where Schraenkt die Selektion der Datensaetze ein.
+ * @param order Gibt ein Feld als Sortierkriterium an.
+ * @return SimpleList Gibt freemarker.template.SimpleList zurueck.
+ */
+ public SimpleList getPopupData(String name, boolean hasNullValue,
+ String where, String order) throws StorageObjectFailure {
+ // caching
+ if (hasPopupCache && (popupCache != null)) {
+ return popupCache;
+ }
+
+ SimpleList simpleList = null;
+ Connection con = null;
+ Statement stmt = null;
+
+ // build sql
+ StringBuffer sql =
+ new StringBuffer("select ").append(thePKeyName).append(",").append(name)
+ .append(" from ").append(theTable);
+
+ if ((where != null) && !(where.length() == 0)) {
+ sql.append(" where ").append(where);
+ }
+
+ sql.append(" order by ");
+
+ if ((order != null) && !(order.length() == 0)) {
+ sql.append(order);
+ } else {
+ sql.append(name);
+ }
+
+ // execute sql
+ try {
+ con = getPooledCon();
+ } catch (Exception e) {
+ throw new StorageObjectFailure(e);
+ }
+
+ try {
+ stmt = con.createStatement();
+
+ ResultSet rs = executeSql(stmt, sql.toString());
+
+ if (rs != null) {
+ if (!evaluatedMetaData) {
+ get_meta_data();
+ }
+
+ simpleList = new SimpleList();
+
+ // if popup has null-selector
+ if (hasNullValue) {
+ simpleList.add(POPUP_EMTYLINE);
+ }
+
+ SimpleHash popupDict;
+
+ while (rs.next()) {
+ popupDict = new SimpleHash();
+ popupDict.put("key", getValueAsString(rs, 1, thePKeyType));
+ popupDict.put("value", rs.getString(2));
+ simpleList.add(popupDict);
+ }
+
+ rs.close();
+ }
+ } catch (Exception e) {
+ theLog.printError("getPopupData: " + e.getMessage());
+ throw new StorageObjectFailure(e);
+ } finally {
+ freeConnection(con, stmt);
+ }
+
+ if (hasPopupCache) {
+ popupCache = simpleList;
+ }
+
+ return simpleList;
+ }
+
+ /**
+ * Liefert alle Daten der Tabelle als SimpleHash zurueck. Dies wird verwandt,
+ * wenn in den Templates ein Lookup-Table benoetigt wird. Sollte nur bei kleinen
+ * Tabellen Verwendung finden.
+ * @return SimpleHash mit den Tabellezeilen.
+ */
+ public SimpleHash getHashData() {
+ /** @todo dangerous! this should have a flag to be enabled, otherwise
+ * very big Hashes could be returned */
+ if (hashCache == null) {
+ try {
+ hashCache =
+ HTMLTemplateProcessor.makeSimpleHash(selectByWhereClause("", -1));
+ } catch (StorageObjectFailure e) {
+ theLog.printDebugInfo(e.getMessage());
+ }
+ }
+
+ return hashCache;
+ }
+
+ /* invalidates the popupCache
+ */
+ protected void invalidatePopupCache() {
+ /** @todo invalidates toooo much */
+ popupCache = null;
+ hashCache = null;
+ }
+
+ /**
+ * Diese Methode fuehrt den Sqlstring <i>sql</i> aus und timed im Logfile.
+ * @param stmt Statemnt
+ * @param sql Sql-String
+ * @return ResultSet
+ * @exception StorageObjectException
+ */
+ public ResultSet executeSql(Statement stmt, String sql)
+ throws StorageObjectFailure, SQLException {
+ long startTime = System.currentTimeMillis();
+ ResultSet rs;
+
+ try {
+ rs = stmt.executeQuery(sql);
+
+ //theLog.printInfo((System.currentTimeMillis() - startTime) + "ms. for: " + sql);
+ } catch (SQLException e) {
+ theLog.printDebugInfo("Failed: " +
+ (System.currentTimeMillis() - startTime) + "ms. for: " + sql);
+ throw e;
+ }
+
+ return rs;
+ }
+
+ /**
+ * Fuehrt Statement stmt aus und liefert Resultset zurueck. Das SQL-Statment wird
+ * getimed und geloggt.
+ * @param stmt PreparedStatement mit der SQL-Anweisung
+ * @return Liefert ResultSet des Statements zurueck.
+ * @exception StorageObjectException, SQLException
+ */
+ public ResultSet executeSql(PreparedStatement stmt)
+ throws StorageObjectFailure, SQLException {
+ long startTime = (new java.util.Date()).getTime();
+ ResultSet rs = stmt.executeQuery();
+ theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms.");
+
+ return rs;
+ }
+
+ /**
+ * returns the number of rows in the table
+ */
+ public int getSize(String where) throws SQLException, StorageObjectFailure {
+ long startTime = System.currentTimeMillis();
+ String sql = "SELECT Count(*) FROM " + theTable;
+
+ if ((where != null) && !(where.length() == 0)) {
+ sql = sql + " where " + where;
+ }
+
+ Connection con = null;
+ Statement stmt = null;
+ int result = 0;
+
+ try {
+ con = getPooledCon();
+ stmt = con.createStatement();
+
+ ResultSet rs = executeSql(stmt, sql);
+
+ while (rs.next()) {
+ result = rs.getInt(1);
+ }
+ } catch (SQLException e) {
+ theLog.printError(e.getMessage());
+ } finally {
+ freeConnection(con, stmt);
+ }
+
+ //theLog.printInfo(theTable + " has "+ result +" rows where " + where);
+ //theLog.printInfo((System.currentTimeMillis() - startTime) + "ms. for: " + sql);
+ return result;
+ }
+
+ public int executeUpdate(Statement stmt, String sql)
+ throws StorageObjectFailure, SQLException {
+ int rs;
+ long startTime = (new java.util.Date()).getTime();
+
+ try {
+ rs = stmt.executeUpdate(sql);
+
+ //theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms. for: " + sql);
+ } catch (SQLException e) {
+ theLog.printDebugInfo("Failed: " +
+ (new java.util.Date().getTime() - startTime) + "ms. for: " + sql);
+ throw e;
+ }
+
+ return rs;
+ }
+
+ public int executeUpdate(String sql)
+ throws StorageObjectFailure, SQLException {
+ int result = -1;
+ long startTime = (new java.util.Date()).getTime();
+ Connection con = null;
+ PreparedStatement pstmt = null;
+
+ try {
+ con = getPooledCon();
+ pstmt = con.prepareStatement(sql);
+ result = pstmt.executeUpdate();
+ } catch (Exception e) {
+ theLog.printDebugInfo("executeUpdate failed: " + e.getMessage());
+ throw new StorageObjectFailure("executeUpdate failed", e);
+ } finally {
+ freeConnection(con, pstmt);
+ }
+
+ //theLog.printInfo((new java.util.Date().getTime() - startTime) + "ms. for: " + sql);
+ return result;
+ }
+
+ /**
+ * Wertet ResultSetMetaData aus und setzt interne Daten entsprechend
+ * @param md ResultSetMetaData
+ * @exception StorageObjectException
+ */
+ private void evalMetaData(ResultSetMetaData md) throws StorageObjectFailure {
+ this.evaluatedMetaData = true;
+ this.metadataFields = new ArrayList();
+ this.metadataLabels = new ArrayList();
+ this.metadataNotNullFields = new ArrayList();
+
+ try {
+ int numFields = md.getColumnCount();
+ this.metadataTypes = new int[numFields];
+
+ String aField;
+ int aType;
+
+ for (int i = 1; i <= numFields; i++) {
+ aField = md.getColumnName(i);
+ metadataFields.add(aField);
+ metadataLabels.add(md.getColumnLabel(i));
+ aType = md.getColumnType(i);
+ metadataTypes[i - 1] = aType;
+
+ if (aField.equals(thePKeyName)) {
+ thePKeyType = aType;
+ thePKeyIndex = i;
+ }
+
+ if (md.isNullable(i) == ResultSetMetaData.columnNullable) {
+ metadataNotNullFields.add(aField);
+ }
+ }
+ } catch (SQLException e) {
+ throwSQLException(e, "evalMetaData");
+ }
+ }
+
+ /**
+ * Wertet die Metadaten eines Resultsets fuer eine Tabelle aus,
+ * um die alle Columns und Typen einer Tabelle zu ermitteln.
+ */
+ private void get_meta_data() throws StorageObjectFailure {
+ Connection con = null;
+ PreparedStatement pstmt = null;
+ String sql = "select * from " + theTable + " where 0=1";
+
+ try {
+ con = getPooledCon();
+ pstmt = con.prepareStatement(sql);
+
+ //theLog.printInfo("METADATA: " + sql);
+ ResultSet rs = pstmt.executeQuery();
+ evalMetaData(rs.getMetaData());
+ rs.close();
+ } catch (SQLException e) {
+ throwSQLException(e, "get_meta_data");
+ } finally {
+ freeConnection(con, pstmt);
+ }
+ }
+
+ public Connection getPooledCon() throws StorageObjectFailure {
+ /* @todo , doublecheck but I'm pretty sure that this is unnecessary. -mh
+ try{
+ Class.forName("com.codestudio.sql.PoolMan").newInstance();
+ } catch (Exception e){
+ throw new StorageObjectException("Could not find the PoolMan Driver"
+ +e.toString());
+ }*/
+ Connection con = null;
+
+ try {
+ con = SQLManager.getInstance().requestConnection();
+ } catch (SQLException e) {
+ theLog.printError("could not connect to the database " + e.getMessage());
+ System.err.println("could not connect to the database " + e.getMessage());
+ throw new StorageObjectFailure("Could not connect to the database", e);
+ }
+
+ return con;
+ }
+
+ public void freeConnection(Connection con, Statement stmt)
+ throws StorageObjectFailure {
+ SQLManager.closeStatement(stmt);
+ SQLManager.getInstance().returnConnection(con);
+ }
+
+ /**
+ * Wertet SQLException aus und wirft dannach eine StorageObjectException
+ * @param sqe SQLException
+ * @param wo Funktonsname, in der die SQLException geworfen wurde
+ * @exception StorageObjectException
+ */
+ protected void throwSQLException(SQLException sqe, String wo)
+ throws StorageObjectFailure {
+ String state = "";
+ String message = "";
+ int vendor = 0;
+
+ if (sqe != null) {
+ state = sqe.getSQLState();
+ message = sqe.getMessage();
+ vendor = sqe.getErrorCode();
+ }
+
+ theLog.printError(state + ": " + vendor + " : " + message + " Funktion: " +
+ wo);
+ throw new StorageObjectFailure((sqe == null) ? "undefined sql exception"
+ : sqe.getMessage(), sqe);
+ }
+
+ protected void _throwStorageObjectException(Exception e, String wo)
+ throws StorageObjectFailure {
+ if (e != null) {
+ theLog.printError(e.getMessage() + wo);
+ throw new StorageObjectFailure(wo, e);
+ } else {
+ theLog.printError(wo);
+ throw new StorageObjectFailure(wo, null);
+ }
+ }
+
+ /**
+ * Loggt Fehlermeldung mit dem Parameter Message und wirft dannach
+ * eine StorageObjectException
+ * @param message Nachricht mit dem Fehler
+ * @exception StorageObjectException
+ */
+ void throwStorageObjectException(String message) throws StorageObjectFailure {
+ _throwStorageObjectException(null, message);
+ }
+}
projects / mir.git / blobdiff