-/*
- * 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);
- }
+/*\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 any library licensed under the Apache Software License,\r
+ * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library\r
+ * (or with modified versions of the above that use the same license as the above),\r
+ * and distribute linked combinations including the two. You must obey the\r
+ * GNU General Public License in all respects for all of the code used other than\r
+ * the above mentioned libraries. If you modify this file, you may extend this\r
+ * exception to your version of the file, but you are not obligated to do so.\r
+ * If you do not wish to do so, delete this exception statement from your version.\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
+import java.util.Iterator;\r
+import java.util.List;\r
+import java.util.Map;\r
+import java.util.TimeZone;\r
+import java.util.Vector;\r
+\r
+import com.codestudio.util.SQLManager;\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.log.LoggerWrapper;\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
+\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 1.46 2003/09/03 18:29:03 zapata Exp $\r
+ * @author rk\r
+ *\r
+ */\r
+public class Database implements StorageObject {\r
+ private static Class GENERIC_ENTITY_CLASS = mir.entity.StorableObjectEntity.class;\r
+ private static Class STORABLE_OBJECT_ENTITY_CLASS = mir.entity.StorableObjectEntity.class;\r
+\r
+\r
+ private static Map POPUP_EMPTYLINE = new HashMap();\r
+ protected static final ObjectStore o_store = ObjectStore.getInstance();\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_EMPTYLINE.put("key", "");\r
+ POPUP_EMPTYLINE.put("value", "--");\r
+ }\r
+\r
+ protected LoggerWrapper logger;\r
+ protected MirPropertiesConfiguration configuration;\r
+ protected String theTable;\r
+ protected String theCoreTable = null;\r
+ protected String thePKeyName = "id";\r
+ protected int thePKeyType;\r
+ protected int thePKeyIndex;\r
+ protected boolean evaluatedMetaData = false;\r
+ protected ArrayList metadataFields;\r
+ protected ArrayList metadataLabels;\r
+ protected ArrayList metadataNotNullFields;\r
+ protected int[] metadataTypes;\r
+ protected Class theEntityClass;\r
+ protected List popupCache = null;\r
+ protected boolean hasPopupCache = false;\r
+ protected Map hashCache = null;\r
+ protected boolean hasTimestamp = true;\r
+ private String database_driver;\r
+ private String database_url;\r
+ private int defaultLimit;\r
+\r
+ TimeZone timezone;\r
+ SimpleDateFormat internalDateFormat;\r
+ SimpleDateFormat userInputDateFormat;\r
+/*\r
+ private SimpleDateFormat _dateFormatterOut;\r
+ private SimpleDateFormat _dateFormatterIn;\r
+ _dateFormatterOut = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");\r
+ _dateFormatterIn = new SimpleDateFormat("yyyy-MM-dd HH:mm");\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
+ }\r
+ catch (PropertiesConfigExc e) {\r
+ throw new StorageObjectFailure(e);\r
+ }\r
+ logger = new LoggerWrapper("Database");\r
+ timezone = TimeZone.getTimeZone(configuration.getString("Mir.DefaultTimezone"));\r
+ internalDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");\r
+ internalDateFormat.setTimeZone(timezone);\r
+\r
+ userInputDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm");\r
+ userInputDateFormat.setTimeZone(timezone);\r
+\r
+\r
+ String theAdaptorName = configuration.getString("Database.Adaptor");\r
+ defaultLimit = Integer.parseInt(configuration.getString("Database.Limit"));\r
+\r
+ try {\r
+ theEntityClass = GENERIC_ENTITY_CLASS;\r
+ }\r
+ catch (Throwable e) {\r
+ logger.error("Error in Database() constructor with " + 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
+ public String getCoreTable() {\r
+ if (theCoreTable != null) {\r
+ return theCoreTable;\r
+ }\r
+ else {\r
+ return theTable;\r
+ }\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
+ }\r
+\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 List getLabels() throws StorageObjectFailure {\r
+ if (metadataLabels == null) {\r
+ get_meta_data();\r
+ }\r
+\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 List getFields() throws StorageObjectFailure {\r
+ if (metadataFields == null) {\r
+ get_meta_data();\r
+ }\r
+\r
+ return metadataFields;\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
+\r
+ if (rs != null) {\r
+ try {\r
+ switch (aType) {\r
+ case java.sql.Types.BIT:\r
+ outValue = (rs.getBoolean(valueIndex) == true) ? "1" : "0";\r
+\r
+ break;\r
+\r
+ case java.sql.Types.INTEGER:\r
+ case java.sql.Types.SMALLINT:\r
+ case java.sql.Types.TINYINT:\r
+ case java.sql.Types.BIGINT:\r
+\r
+ int out = rs.getInt(valueIndex);\r
+\r
+ if (!rs.wasNull()) {\r
+ outValue = new Integer(out).toString();\r
+ }\r
+\r
+ break;\r
+\r
+ case java.sql.Types.NUMERIC:\r
+\r
+ /** @todo Numeric can be float or double depending upon\r
+ * metadata.getScale() / especially with oracle */\r
+ long outl = rs.getLong(valueIndex);\r
+\r
+ if (!rs.wasNull()) {\r
+ outValue = new Long(outl).toString();\r
+ }\r
+\r
+ break;\r
+\r
+ case java.sql.Types.REAL:\r
+\r
+ float tempf = rs.getFloat(valueIndex);\r
+\r
+ if (!rs.wasNull()) {\r
+ tempf *= 10;\r
+ tempf += 0.5;\r
+\r
+ int tempf_int = (int) tempf;\r
+ tempf = (float) tempf_int;\r
+ tempf /= 10;\r
+ outValue = "" + tempf;\r
+ outValue = outValue.replace('.', ',');\r
+ }\r
+\r
+ break;\r
+\r
+ case java.sql.Types.DOUBLE:\r
+\r
+ double tempd = rs.getDouble(valueIndex);\r
+\r
+ if (!rs.wasNull()) {\r
+ tempd *= 10;\r
+ tempd += 0.5;\r
+\r
+ int tempd_int = (int) tempd;\r
+ tempd = (double) tempd_int;\r
+ tempd /= 10;\r
+ outValue = "" + tempd;\r
+ outValue = outValue.replace('.', ',');\r
+ }\r
+\r
+ break;\r
+\r
+ case java.sql.Types.CHAR:\r
+ case java.sql.Types.VARCHAR:\r
+ case java.sql.Types.LONGVARCHAR:\r
+ outValue = rs.getString(valueIndex);\r
+\r
+ break;\r
+\r
+ case java.sql.Types.LONGVARBINARY:\r
+ outValue = rs.getString(valueIndex);\r
+\r
+ break;\r
+\r
+ case java.sql.Types.TIMESTAMP:\r
+\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
+\r
+ if (!rs.wasNull()) {\r
+ java.util.Date date = new java.util.Date(timestamp.getTime());\r
+\r
+ Calendar calendar = new GregorianCalendar();\r
+ calendar.setTime(date);\r
+ calendar.setTimeZone(timezone);\r
+ outValue = internalDateFormat.format(date);\r
+\r
+ int offset = calendar.get(Calendar.ZONE_OFFSET) + calendar.get(Calendar.DST_OFFSET);\r
+ String tzOffset = StringUtil.zeroPaddingNumber(Math.abs(offset) / _millisPerHour, 2, 2);\r
+\r
+ if (offset<0)\r
+ outValue = outValue + "-";\r
+ else\r
+ outValue = outValue + "+";\r
+ outValue = outValue + tzOffset;\r
+ }\r
+\r
+ break;\r
+\r
+ default:\r
+ outValue = "<unsupported value>";\r
+ logger.warn("Unsupported Datatype: at " + valueIndex + " (" + aType + ")");\r
+ }\r
+ } catch (SQLException e) {\r
+ throw new StorageObjectFailure("Could not get Value out of Resultset -- ",\r
+ e);\r
+ }\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) throws StorageObjectExc {\r
+ if ((id == null) || id.equals("")) {\r
+ throw new StorageObjectExc("Database.selectById: Missing id");\r
+ }\r
+\r
+ // ask object store for object\r
+ if (StoreUtil.implementsStorableObject(theEntityClass)) {\r
+ String uniqueId = id;\r
+\r
+ if (theEntityClass.equals(StorableObjectEntity.class)) {\r
+ uniqueId += ("@" + theTable);\r
+ }\r
+\r
+ StoreIdentifier search_sid = new StoreIdentifier(theEntityClass, uniqueId);\r
+ logger.debug("CACHE: (dbg) looking for sid " + search_sid.toString());\r
+\r
+ Entity hit = (Entity) o_store.use(search_sid);\r
+\r
+ if (hit != null) {\r
+ return hit;\r
+ }\r
+ }\r
+\r
+ Statement stmt = null;\r
+ Connection con = getPooledCon();\r
+ Entity returnEntity = null;\r
+\r
+ try {\r
+ ResultSet rs;\r
+\r
+ /** @todo better prepared statement */\r
+ String selectSql =\r
+ "select * from " + theTable + " where " + thePKeyName + "=" + id;\r
+ stmt = con.createStatement();\r
+ rs = executeSql(stmt, selectSql);\r
+\r
+ if (rs != null) {\r
+ if (evaluatedMetaData == false) {\r
+ evalMetaData(rs.getMetaData());\r
+ }\r
+\r
+ if (rs.next()) {\r
+ returnEntity = makeEntityFromResultSet(rs);\r
+ }\r
+ else {\r
+ logger.debug("No data for id: " + id + " in table " + theTable);\r
+ }\r
+\r
+ rs.close();\r
+ }\r
+ else {\r
+ logger.debug("No Data for Id " + id + " in Table " + theTable);\r
+ }\r
+ }\r
+ catch (SQLException sqe) {\r
+ throwSQLException(sqe, "selectById");\r
+ return null;\r
+ }\r
+ catch (NumberFormatException e) {\r
+ logger.error("ID is no number: " + id);\r
+ }\r
+ finally {\r
+ freeConnection(con, stmt);\r
+ }\r
+\r
+ return returnEntity;\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) throws StorageObjectFailure {\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) throws StorageObjectFailure {\r
+ return selectByWhereClause(aField + "=" + aValue, offset);\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) throws StorageObjectFailure {\r
+ return selectByWhereClause(where, 0);\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) throws StorageObjectFailure {\r
+ return selectByWhereClause(whereClause, null, offset);\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
+ public EntityList selectByWhereClause(String where, String order) throws StorageObjectFailure {\r
+ return selectByWhereClause(where, order, 0);\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
+ public EntityList selectByWhereClause(String whereClause, String orderBy, int offset) throws StorageObjectFailure {\r
+ return selectByWhereClause(whereClause, orderBy, offset, defaultLimit);\r
+ }\r
+\r
+ /**\r
+ * select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.\r
+ * @param aWhereClause where-Clause\r
+ * @param anOrderByClause 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
+ public EntityList selectByWhereClause(String aWhereClause, String anOrderByClause,\r
+ int offset, int limit) throws StorageObjectFailure {\r
+\r
+ // check o_store for entitylist\r
+ if (StoreUtil.implementsStorableObject(theEntityClass)) {\r
+ StoreIdentifier search_sid =\r
+ new StoreIdentifier(\r
+ theEntityClass, StoreContainerType.STOC_TYPE_ENTITYLIST,\r
+ StoreUtil.getEntityListUniqueIdentifierFor(theTable, aWhereClause, anOrderByClause, offset, limit));\r
+ EntityList hit = (EntityList) o_store.use(search_sid);\r
+\r
+ if (hit != null) {\r
+ logger.debug("CACHE (hit): " + search_sid.toString());\r
+\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;\r
+ int 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
+ if ((aWhereClause != null) && (aWhereClause.trim().length() == 0)) {\r
+ aWhereClause = null;\r
+ }\r
+\r
+ StringBuffer countSql =\r
+ new StringBuffer("select count(*) from ").append(theTable);\r
+ StringBuffer selectSql =\r
+ new StringBuffer("select * from ").append(theTable);\r
+\r
+ if (aWhereClause != null) {\r
+ selectSql.append(" where ").append(aWhereClause);\r
+ countSql.append(" where ").append(aWhereClause);\r
+ }\r
+\r
+ if ((anOrderByClause != null) && !(anOrderByClause.trim().length() == 0)) {\r
+ selectSql.append(" order by ").append(anOrderByClause);\r
+ }\r
+\r
+ if ((limit > -1) && (offset > -1)) {\r
+ selectSql.append(" LIMIT ").append(limit).append(" OFFSET ").append(offset);\r
+ }\r
+\r
+ // execute sql\r
+ try {\r
+ con = getPooledCon();\r
+ stmt = con.createStatement();\r
+\r
+ // selecting...\r
+ rs = executeSql(stmt, selectSql.toString());\r
+\r
+ if (rs != null) {\r
+ if (!evaluatedMetaData) {\r
+ evalMetaData(rs.getMetaData());\r
+ }\r
+\r
+ theReturnList = new EntityList();\r
+\r
+ Entity theResultEntity;\r
+\r
+ while (rs.next()) {\r
+ theResultEntity = makeEntityFromResultSet(rs);\r
+ theReturnList.add(theResultEntity);\r
+ offsetCount++;\r
+ }\r
+\r
+ rs.close();\r
+ }\r
+\r
+ // making entitylist infos\r
+ count = offsetCount;\r
+\r
+ if (theReturnList != null) {\r
+ // now we decide if we have to know an overall count...\r
+ count = offsetCount;\r
+\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
+\r
+ if (rs != null) {\r
+ if (rs.next()) {\r
+ count = rs.getInt(1);\r
+ }\r
+\r
+ rs.close();\r
+ }\r
+ else {\r
+ logger.error("Could not count: " + countSql);\r
+ }\r
+ }\r
+ }\r
+\r
+ theReturnList.setCount(count);\r
+ theReturnList.setOffset(offset);\r
+ theReturnList.setWhere(aWhereClause);\r
+ theReturnList.setOrder(anOrderByClause);\r
+ theReturnList.setStorage(this);\r
+ theReturnList.setLimit(limit);\r
+\r
+ if (offset >= limit) {\r
+ theReturnList.setPrevBatch(offset - limit);\r
+ }\r
+\r
+ if ((offset + offsetCount) < count) {\r
+ theReturnList.setNextBatch(offset + limit);\r
+ }\r
+\r
+ if (StoreUtil.implementsStorableObject(theEntityClass)) {\r
+ StoreIdentifier sid = theReturnList.getStoreIdentifier();\r
+ logger.debug("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
+ return theReturnList;\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
+ /** @todo OS: get Pkey from ResultSet and consult ObjectStore */\r
+ Map theResultHash = new HashMap();\r
+ String theResult = null;\r
+ int theType;\r
+ Entity returnEntity = null;\r
+\r
+ try {\r
+ int size = metadataFields.size();\r
+\r
+ for (int i = 0; i < size; i++) {\r
+ // alle durchlaufen bis nix mehr da\r
+ theType = metadataTypes[i];\r
+\r
+ if (theType == java.sql.Types.LONGVARBINARY) {\r
+ InputStreamReader is =\r
+ (InputStreamReader) rs.getCharacterStream(i + 1);\r
+\r
+ if (is != null) {\r
+ char[] data = new char[32768];\r
+ StringBuffer theResultString = new StringBuffer();\r
+ int len;\r
+\r
+ while ((len = is.read(data)) > 0) {\r
+ theResultString.append(data, 0, len);\r
+ }\r
+\r
+ is.close();\r
+ theResult = theResultString.toString();\r
+ } else {\r
+ theResult = null;\r
+ }\r
+ } else {\r
+ theResult = getValueAsString(rs, (i + 1), theType);\r
+ }\r
+\r
+ if (theResult != null) {\r
+ theResultHash.put(metadataFields.get(i), theResult);\r
+ }\r
+ }\r
+\r
+ if (theEntityClass != null) {\r
+ returnEntity = (Entity) theEntityClass.newInstance();\r
+ returnEntity.setStorage(this);\r
+ returnEntity.setValues(theResultHash);\r
+\r
+ if (returnEntity instanceof StorableObject) {\r
+ logger.debug("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
+\r
+ return null;\r
+ }\r
+\r
+ return returnEntity;\r
+ }\r
+\r
+ /**\r
+ * Inserts an entity into the database.\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;\r
+ PreparedStatement pstmt = null;\r
+\r
+ try {\r
+ List streamedInput = theEntity.streamedInput();\r
+ StringBuffer f = new StringBuffer();\r
+ StringBuffer v = new StringBuffer();\r
+ String aField;\r
+ String aValue;\r
+ boolean firstField = true;\r
+\r
+ // make sql-string\r
+ for (int i = 0; i < getFields().size(); i++) {\r
+ aField = (String) getFields().get(i);\r
+\r
+ if (!aField.equals(thePKeyName)) {\r
+ aValue = null;\r
+\r
+ // exceptions\r
+ if (!theEntity.hasValueForField(aField) && (\r
+ 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 =\r
+ "'" +\r
+ JDBCStringRoutines.escapeStringLiteral((String) theEntity.getValue(aField)) + "'";\r
+ }\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
+\r
+ f.append(aField);\r
+ v.append(aValue);\r
+ }\r
+ }\r
+ }\r
+ // end for\r
+\r
+ // insert into db\r
+ StringBuffer sqlBuf =\r
+ new StringBuffer("insert into ").append(theTable).append("(").append(f)\r
+ .append(") values (").append(v).append(")");\r
+ String sql = sqlBuf.toString();\r
+\r
+ logger.debug("INSERT: " + sql);\r
+ con = getPooledCon();\r
+ con.setAutoCommit(false);\r
+ pstmt = con.prepareStatement(sql);\r
+\r
+ if (streamedInput != null) {\r
+ for (int i = 0; i < streamedInput.size(); i++) {\r
+ String inputString =\r
+ (String) theEntity.getValue((String) streamedInput.get(i));\r
+ pstmt.setBytes(i + 1, inputString.getBytes());\r
+ }\r
+ }\r
+\r
+ int ret = pstmt.executeUpdate();\r
+\r
+ if (ret == 0) {\r
+ //insert failed\r
+ return null;\r
+ }\r
+\r
+ pstmt = con.prepareStatement("select currval('" + getCoreTable() + "_id_seq')");\r
+\r
+ ResultSet rs = pstmt.executeQuery();\r
+ rs.next();\r
+ returnId = rs.getString(1);\r
+ theEntity.setId(returnId);\r
+ }\r
+ catch (SQLException sqe) {\r
+ throwSQLException(sqe, "insert");\r
+ }\r
+ finally {\r
+ try {\r
+ con.setAutoCommit(true);\r
+ }\r
+ catch (Exception e) {\r
+ }\r
+\r
+ freeConnection(con, pstmt);\r
+ }\r
+\r
+ /** @todo store entity in o_store */\r
+ return returnId;\r
+ }\r
+\r
+ /**\r
+ * Updates an entity in the database\r
+ *\r
+ * @param theEntity\r
+ */\r
+ public void update(Entity theEntity) throws StorageObjectFailure {\r
+ Connection con = null;\r
+ PreparedStatement pstmt = null;\r
+\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
+ /** @todo extension: check if Entity did change, otherwise we don't need\r
+ * the roundtrip to the database */\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
+ List streamedInput = theEntity.streamedInput();\r
+ String id = theEntity.getId();\r
+ String aField;\r
+ StringBuffer fv = new StringBuffer();\r
+ boolean firstField = true;\r
+\r
+ //cache\r
+ invalidatePopupCache();\r
+\r
+ // build sql statement\r
+ for (int i = 0; i < getFields().size(); i++) {\r
+ aField = (String) metadataFields.get(i);\r
+\r
+ // only normal cases\r
+ if ( !(aField.equals(thePKeyName) ||\r
+ aField.equals("webdb_create") ||\r
+ aField.equals("webdb_lastchange") ||\r
+ ((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
+\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
+\r
+ StringBuffer sql =\r
+ new StringBuffer("update ").append(theTable).append(" set ").append(fv);\r
+\r
+ // exceptions\r
+ if (metadataFields.contains("webdb_lastchange")) {\r
+ sql.append(",webdb_lastchange=NOW()");\r
+ }\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
+\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
+\r
+ // TimeStamp stuff\r
+ try {\r
+ java.util.Date d = userInputDateFormat.parse(dateString);\r
+// Timestamp tStamp = new Timestamp(d.getTime());\r
+ sql.append(",webdb_create='" + JDBCStringRoutines.formatDate(d) + "'");\r
+ }\r
+ catch (ParseException e) {\r
+ throw new StorageObjectFailure(e);\r
+ }\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
+\r
+ sql.append(" where id=").append(id);\r
+ logger.debug("UPDATE: " + sql);\r
+\r
+ try {\r
+ con = getPooledCon();\r
+ con.setAutoCommit(false);\r
+ pstmt = con.prepareStatement(sql.toString());\r
+\r
+ if (streamedInput != null) {\r
+ for (int i = 0; i < streamedInput.size(); i++) {\r
+ String inputString =\r
+ theEntity.getValue((String) streamedInput.get(i));\r
+ pstmt.setBytes(i + 1, inputString.getBytes());\r
+ }\r
+ }\r
+\r
+ pstmt.executeUpdate();\r
+ }\r
+ catch (SQLException sqe) {\r
+ throwSQLException(sqe, "update");\r
+ }\r
+ finally {\r
+ try {\r
+ con.setAutoCommit(true);\r
+ }\r
+ catch (Exception e) {\r
+ ;\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
+ invalidatePopupCache();\r
+\r
+ // ostore send notification\r
+ if (StoreUtil.implementsStorableObject(theEntityClass)) {\r
+ String uniqueId = id;\r
+\r
+ if (theEntityClass.equals(StorableObjectEntity.class)) {\r
+ uniqueId += ("@" + theTable);\r
+ }\r
+\r
+ logger.debug("CACHE: (del) " + id);\r
+\r
+ StoreIdentifier search_sid =\r
+ new StoreIdentifier(theEntityClass,\r
+ StoreContainerType.STOC_TYPE_ENTITY, uniqueId);\r
+ o_store.invalidate(search_sid);\r
+ }\r
+\r
+ /** @todo could be prepared Statement */\r
+ Statement stmt = null;\r
+ Connection con = null;\r
+ int res = 0;\r
+ String sql =\r
+ "delete from " + theTable + " where " + thePKeyName + "='" + id + "'";\r
+\r
+ //theLog.printInfo("DELETE " + sql);\r
+ try {\r
+ con = getPooledCon();\r
+ stmt = con.createStatement();\r
+ res = stmt.executeUpdate(sql);\r
+ } catch (SQLException sqe) {\r
+ throwSQLException(sqe, "delete");\r
+ } finally {\r
+ freeConnection(con, stmt);\r
+ }\r
+\r
+ return (res > 0) ? true : false;\r
+ }\r
+\r
+ /**\r
+ * Deletes entities based on a where clause\r
+ *\r
+ * @param aWhereClause\r
+ * @return\r
+ * @throws StorageObjectFailure\r
+ */\r
+ public int deleteByWhereClause(String aWhereClause) throws StorageObjectFailure {\r
+ invalidatePopupCache();\r
+ if (StoreUtil.implementsStorableObject(theEntityClass)) {\r
+ StoreContainerType stoc_type = StoreContainerType.valueOf(theEntityClass, StoreContainerType.STOC_TYPE_ENTITYLIST);\r
+ o_store.invalidate(stoc_type);\r
+ }\r
+\r
+ Statement stmt = null;\r
+ Connection con = null;\r
+ int res = 0;\r
+ String sql =\r
+ "delete from " + theTable + " where " + aWhereClause;\r
+\r
+ //theLog.printInfo("DELETE " + sql);\r
+ try {\r
+ con = getPooledCon();\r
+ stmt = con.createStatement();\r
+ res = stmt.executeUpdate(sql);\r
+ }\r
+ catch (SQLException sqe) {\r
+ throwSQLException(sqe, "delete");\r
+ }\r
+ finally {\r
+ freeConnection(con, stmt);\r
+ }\r
+\r
+ return res;\r
+ }\r
+\r
+ /* noch nicht implementiert.\r
+ * @return immer false\r
+ */\r
+ public boolean delete(EntityList theEntityList) {\r
+ invalidatePopupCache();\r
+\r
+ return false;\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
+ ResultSet rs;\r
+ long startTime = System.currentTimeMillis();\r
+\r
+ try {\r
+ rs = stmt.executeQuery(sql);\r
+\r
+ logger.debug((System.currentTimeMillis() - startTime) + "ms. for: " + sql);\r
+ }\r
+ catch (SQLException e) {\r
+ logger.error(e.getMessage() +"\n" + (System.currentTimeMillis() - startTime) + "ms. for: " + sql);\r
+ throw e;\r
+ }\r
+\r
+ return rs;\r
+ }\r
+/*\r
+ public ResultSet executeSql(String sql) throws StorageObjectFailure, SQLException {\r
+ long startTime = System.currentTimeMillis();\r
+ Connection connection = null;\r
+ Statement statement = null;\r
+\r
+ try {\r
+ connection = getPooledCon();\r
+ statement = connection.createStatement();\r
+ ResultSet result;\r
+\r
+ result = statement.executeQuery(sql);\r
+\r
+ logger.debug((System.currentTimeMillis() - startTime) + "ms. for: " + sql);\r
+ return result;\r
+ }\r
+ catch (Throwable e) {\r
+ logger.error(e.getMessage() +"\n" + (System.currentTimeMillis() - startTime) + "ms. for: " + sql);\r
+ throw new StorageObjectFailure(e);\r
+ }\r
+ finally {\r
+ if (connection!=null) {\r
+ freeConnection(connection, statement);\r
+ }\r
+ }\r
+ }\r
+*/\r
+ private Map processRow(ResultSet aResultSet) throws StorageObjectFailure, StorageObjectExc {\r
+ try {\r
+ Map result = new HashMap();\r
+ ResultSetMetaData metaData = aResultSet.getMetaData();\r
+ int nrColumns = metaData.getColumnCount();\r
+ for (int i=0; i<nrColumns; i++) {\r
+ result.put(metaData.getColumnName(i+1), getValueAsString(aResultSet, i+1, metaData.getColumnType(i+1)));\r
+ }\r
+\r
+ return result;\r
+ }\r
+ catch (Throwable e) {\r
+ throw new StorageObjectFailure(e);\r
+ }\r
+ }\r
+\r
+ public List executeFreeSql(String sql, int aLimit) throws StorageObjectFailure, StorageObjectExc {\r
+ Connection connection = null;\r
+ Statement statement = null;\r
+ try {\r
+ List result = new Vector();\r
+ connection = getPooledCon();\r
+ statement = connection.createStatement();\r
+ ResultSet resultset = executeSql(statement, sql);\r
+ try {\r
+ while (resultset.next() && result.size() < aLimit) {\r
+ result.add(processRow(resultset));\r
+ }\r
+ }\r
+ finally {\r
+ resultset.close();\r
+ }\r
+\r
+ return result;\r
+ }\r
+ catch (Throwable e) {\r
+ throw new StorageObjectFailure(e);\r
+ }\r
+ finally {\r
+ if (connection!=null) {\r
+ freeConnection(connection, statement);\r
+ }\r
+ }\r
+ };\r
+\r
+ public Map executeFreeSingleRowSql(String anSqlStatement) throws StorageObjectFailure, StorageObjectExc {\r
+ try {\r
+ List resultList = executeFreeSql(anSqlStatement, 1);\r
+ try {\r
+ if (resultList.size()>0)\r
+ return (Map) resultList.get(0);\r
+ else\r
+ return null;\r
+ }\r
+ finally {\r
+ }\r
+ }\r
+ catch (Throwable t) {\r
+ throw new StorageObjectFailure(t);\r
+ }\r
+ };\r
+\r
+ public String executeFreeSingleValueSql(String sql) throws StorageObjectFailure, StorageObjectExc {\r
+ Map row = executeFreeSingleRowSql(sql);\r
+\r
+ if (row==null)\r
+ return null;\r
+\r
+ Iterator i = row.values().iterator();\r
+ if (i.hasNext())\r
+ return (String) i.next();\r
+ else\r
+ return null;\r
+ };\r
+\r
+ /**\r
+ * returns the number of rows in the table\r
+ */\r
+ public int getSize(String where) throws SQLException, StorageObjectFailure {\r
+ long startTime = System.currentTimeMillis();\r
+ String sql = "SELECT Count(*) FROM " + theTable;\r
+\r
+ if ((where != null) && (where.length() != 0)) {\r
+ sql = sql + " where " + where;\r
+ }\r
+\r
+ Connection con = null;\r
+ Statement stmt = null;\r
+ int result = 0;\r
+\r
+ try {\r
+ con = getPooledCon();\r
+ stmt = con.createStatement();\r
+\r
+ ResultSet rs = executeSql(stmt, sql);\r
+\r
+ while (rs.next()) {\r
+ result = rs.getInt(1);\r
+ }\r
+ }\r
+ catch (SQLException e) {\r
+ logger.error("Database.getSize: " + e.getMessage());\r
+ }\r
+ finally {\r
+ freeConnection(con, stmt);\r
+ }\r
+\r
+ //theLog.printInfo(theTable + " has "+ result +" rows where " + where);\r
+ logger.debug((System.currentTimeMillis() - startTime) + "ms. for: " + sql);\r
+\r
+ return result;\r
+ }\r
+\r
+ public int executeUpdate(Statement stmt, String sql)\r
+ throws StorageObjectFailure, SQLException {\r
+ int rs;\r
+ long startTime = System.currentTimeMillis();\r
+\r
+ try {\r
+ rs = stmt.executeUpdate(sql);\r
+\r
+ logger.debug((System.currentTimeMillis() - startTime) + "ms. for: " + sql);\r
+ }\r
+ catch (SQLException e) {\r
+ logger.error("Failed: " + (System.currentTimeMillis() - startTime) + "ms. for: " + sql);\r
+ throw e;\r
+ }\r
+\r
+ return rs;\r
+ }\r
+\r
+ public int executeUpdate(String sql)\r
+ throws StorageObjectFailure, SQLException {\r
+ int result = -1;\r
+ long startTime = System.currentTimeMillis();\r
+ Connection con = null;\r
+ PreparedStatement pstmt = null;\r
+\r
+ try {\r
+ con = getPooledCon();\r
+ pstmt = con.prepareStatement(sql);\r
+ result = pstmt.executeUpdate();\r
+ }\r
+ catch (Throwable e) {\r
+ logger.error("Database.executeUpdate(" + sql + "): " + e.getMessage());\r
+ throw new StorageObjectFailure("Database.executeUpdate(" + sql + "): " + e.getMessage(), e);\r
+ }\r
+ finally {\r
+ freeConnection(con, pstmt);\r
+ }\r
+\r
+ logger.debug((System.currentTimeMillis() - 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) throws StorageObjectFailure {\r
+ this.evaluatedMetaData = true;\r
+ this.metadataFields = new ArrayList();\r
+ this.metadataLabels = new ArrayList();\r
+ this.metadataNotNullFields = new ArrayList();\r
+\r
+ try {\r
+ int numFields = md.getColumnCount();\r
+ this.metadataTypes = new int[numFields];\r
+\r
+ String aField;\r
+ int aType;\r
+\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
+\r
+ if (aField.equals(thePKeyName)) {\r
+ thePKeyType = aType;\r
+ thePKeyIndex = i;\r
+ }\r
+\r
+ if (md.isNullable(i) == ResultSetMetaData.columnNullable) {\r
+ metadataNotNullFields.add(aField);\r
+ }\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
+\r
+ try {\r
+ con = getPooledCon();\r
+ pstmt = con.prepareStatement(sql);\r
+\r
+ logger.debug("METADATA: " + sql);\r
+ ResultSet rs = pstmt.executeQuery();\r
+ evalMetaData(rs.getMetaData());\r
+ rs.close();\r
+ }\r
+ catch (SQLException e) {\r
+ throwSQLException(e, "get_meta_data");\r
+ }\r
+ finally {\r
+ freeConnection(con, pstmt);\r
+ }\r
+ }\r
+\r
+ public Connection getPooledCon() throws StorageObjectFailure {\r
+ Connection con = null;\r
+\r
+ try {\r
+ con = SQLManager.getInstance().requestConnection();\r
+ }\r
+ catch (SQLException e) {\r
+ logger.error("could not connect to the database " + e.getMessage());\r
+\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)\r
+ 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 aFunction) throws StorageObjectFailure {\r
+ String state = "";\r
+ String message = "";\r
+ int vendor = 0;\r
+\r
+ if (sqe != null) {\r
+ state = sqe.getSQLState();\r
+ message = sqe.getMessage();\r
+ vendor = sqe.getErrorCode();\r
+ }\r
+\r
+ String information =\r
+ "SQL Error: " +\r
+ "state= " + state +\r
+ ", vendor= " + vendor +\r
+ ", message=" + message +\r
+ ", function= " + aFunction;\r
+\r
+ logger.error(information);\r
+\r
+ throw new StorageObjectFailure(information, sqe);\r
+ }\r
+\r
+ protected void _throwStorageObjectException(Exception e, String aFunction)\r
+ throws StorageObjectFailure {\r
+\r
+ if (e != null) {\r
+ logger.error(e.getMessage() + aFunction);\r
+ throw new StorageObjectFailure(aFunction, e);\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 aMessage) throws StorageObjectFailure {\r
+ logger.error(aMessage);\r
+ throw new StorageObjectFailure(aMessage, null);\r
+ }\r
}
projects / mir.git / blobdiff