4 files changed, 110 insertions, 2 deletions

diff --git a/libopie2/opiepim/backend/obackendfactory.h b/libopie2/opiepim/backend/obackendfactory.h
new file mode 100644
index 0000000..599fbf2
--- a/dev/null
+++ b/libopie2/opiepim/backend/obackendfactory.h
@@ -0,0 +1,88 @@
+/*
+ * Class to manage Backends.
+ *
+ * Copyright (c) 2002 by Stefan Eilers (Eilers.Stefan@epost.de)
+ *
+ * =====================================================================
+         *This program is free software; you can redistribute it and/or
+         *modify it under the terms of the GNU Library General Public
+ *      License as published by the Free Software Foundation;
+ *      either version 2 of the License, or (at your option) any later
+ *      version.
+ * =====================================================================
+ * ToDo: Use plugins 
+ * =====================================================================
+ * Version: $Id$
+ * =====================================================================
+ * History:
+ * $Log$
+ * Revision 1.1  2002/10/07 17:35:01  eilers
+ * added OBackendFactory for advanced backend access
+ *
+ *
+ * =====================================================================
+ */
+#ifndef __OPIE_BACKENDFACTORY_H_
+#define __OPIE_BACKENDFACTORY_H_
+
+#include <qstring.h>
+#include <qasciidict.h>
+#include <qpe/config.h>
+
+#include "otodoaccessxml.h"
+#include "ocontactaccessbackend_xml.h"
+#include "otodoaccesssql.h"
+
+
+template<class T>
+class OBackendFactory
+{
+ public:
+        OBackendFactory() {};
+
+        enum BACKENDS {
+                TODO,
+                CONTACT,
+                DATE
+        };
+        
+        static T* Default( const QString backendName, const QString& appName ){
+        
+
+                Config config( "pimaccess" );
+                config.setGroup ( backendName );
+                QString backend = config.readEntry( "usebackend" );
+
+                QAsciiDict<int> dict ( 3 );
+                dict.setAutoDelete ( TRUE );
+
+                dict.insert( "todo", new int (TODO) );
+                dict.insert( "contact", new int (CONTACT) );
+
+                qWarning ("TODO is: %d", TODO);
+                qWarning ("CONTACT is: %d", CONTACT);
+        
+                switch ( *dict.take( backendName ) ){
+                case TODO:
+                        if ( backend == "sql" ) 
+                                return (T*) new OTodoAccessBackendSQL("");
+                        
+                        return (T*) new OTodoAccessXML( appName );
+                case CONTACT:
+                        if ( backend == "sql" ) 
+                                qWarning ("OBackendFactory:: sql Backend not implemented! Using XML instead!");
+
+                        return (T*) new OContactAccessBackend_XML( appName );
+                case DATE:
+                        qWarning ("OBackendFactory:: DATE-Backend not implemented!");
+                        return NULL;
+                default:
+                        return NULL;
+                }
+        
+        
+        }
+};
+
+
+#endif
diff --git a/libopie2/opiepim/backend/ocontactaccessbackend.h b/libopie2/opiepim/backend/ocontactaccessbackend.h
index 9469bbc..a651477 100644
--- a/libopie2/opiepim/backend/ocontactaccessbackend.h
+++ b/libopie2/opiepim/backend/ocontactaccessbackend.h
@@ -1,70 +1,74 @@
 /**
  * The class responsible for managing a backend.
  * The implementation of this abstract class contains
  * the complete database handling.
  *
  * Copyright (c) 2002 by Stefan Eilers (Eilers.Stefan@epost.de)
  * Copyright (c) 2002 by Holger Freyther (zecke@handhelds.org)
  *
  * =====================================================================
          *This program is free software; you can redistribute it and/or
          *modify it under the terms of the GNU Library General Public
  *      License as published by the Free Software Foundation;
  *      either version 2 of the License, or (at your option) any later
  *      version.
  * =====================================================================
  * ToDo: Define enum for query settings
  * =====================================================================
  * Version: $Id$
  * =====================================================================
  * History:
  * $Log$
+ * Revision 1.2  2002/10/07 17:34:24  eilers
+ * added OBackendFactory for advanced backend access
+ *
  * Revision 1.1  2002/09/27 17:11:44  eilers
  * Added API for accessing the Contact-Database ! It is compiling, but
  * please do not expect that anything is working !
  * I will debug that stuff in the next time ..
  * Please read README_COMPILE for compiling !
  *
  * =====================================================================
  *
  */
 
 #ifndef _OCONTACTACCESSBACKEND_H_
 #define _OCONTACTACCESSBACKEND_H_
 
+#include "ocontact.h"
 #include "opimaccessbackend.h"
 
 class OContactAccessBackend: public OPimAccessBackend<OContact> {
  public:
         OContactAccessBackend() {}
         virtual ~OContactAccessBackend() {}
 
 
         /** Return if database was changed externally.
          * This may just make sense on file based databases like a XML-File.
          * It is used to prevent to overwrite the current database content
          * if the file was already changed by something else !
          * If this happens, we have to reload before save our data.
          * If we use real databases, this should be handled by the database
          * management system themselve, therefore this function should always return false in
          * this case. It is not our problem to handle this conflict ...
          * @return <i>true</i> if the database was changed and if save without reload will
          * be dangerous. <i>false</i> if the database was not changed or it is save to write
          * in this situation.
          */
         virtual bool wasChangedExternally() = 0;
 
         /** Return all possible settings.
          *  @return All settings provided by the current backend
          * (i.e.: query_WildCards & query_IgnoreCase)
          */
         virtual const uint querySettings() = 0;
 
         /** Check whether settings are correct.
          * @return <i>true</i> if the given settings are correct and possible.
          */
         virtual bool hasQuerySettings (uint querySettings) const = 0;
 
 
 };
 #endif
diff --git a/libopie2/opiepim/backend/ocontactaccessbackend_xml.h b/libopie2/opiepim/backend/ocontactaccessbackend_xml.h
index 2cdb45b..97ef40f 100644
--- a/libopie2/opiepim/backend/ocontactaccessbackend_xml.h
+++ b/libopie2/opiepim/backend/ocontactaccessbackend_xml.h
@@ -1,231 +1,241 @@
 /*
  * XML Backend for the OPIE-Contact Database.
  *
  * Copyright (c) 2002 by Stefan Eilers (Eilers.Stefan@epost.de)
  *
  * =====================================================================
          *This program is free software; you can redistribute it and/or
          *modify it under the terms of the GNU Library General Public
  *      License as published by the Free Software Foundation; either
  *      version 2 of the License, or (at your option) any later version.
  * =====================================================================
  * ToDo: XML-Backend: Automatic reload if something was changed...
  *
  *
  * =====================================================================
  * Version: $Id$
  * =====================================================================
  * History:
  * $Log$
+ * Revision 1.2  2002/10/07 17:34:24  eilers
+ * added OBackendFactory for advanced backend access
+ *
  * Revision 1.1  2002/09/27 17:11:44  eilers
  * Added API for accessing the Contact-Database ! It is compiling, but
  * please do not expect that anything is working !
  * I will debug that stuff in the next time ..
  * Please read README_COMPILE for compiling !
  *
  *
  */
 
 #ifndef _OContactAccessBackend_XML_
 #define _OContactAccessBackend_XML_
 
 #include <qasciidict.h>
 #include <qdatetime.h>
 #include <qfile.h>
+#include <qfileinfo.h>
 #include <qregexp.h>
 #include <qarray.h>
 
+#include <qpe/global.h>
+
 #include <opie/xmltree.h>
 #include "ocontactaccessbackend.h"
+#include "ocontactaccess.h"
+
+#include <stdlib.h>
+#include <errno.h>
 
 using namespace Opie;
 
 /* the default xml implementation */
 class OContactAccessBackend_XML : public OContactAccessBackend {
  public:
         OContactAccessBackend_XML ( QString appname, QString filename = 0l )
                 {
                         m_appName = appname;
                         
                         /* Set journalfile name ... */
                         m_journalName = getenv("HOME");
                         m_journalName +="/.abjournal" + appname;
                         
                         /* Expecting to access the default filename if nothing else is set */
                         if ( filename.isEmpty() ){
                                 m_fileName = Global::applicationFileName( "addressbook","addressbook.xml" );
                         } else
                                 m_fileName = filename;
                         
                         /* Load Database now */
                         load ();
                 }
         
         bool save() {
                 QString strNewFile = m_fileName + ".new";
                 QFile f( strNewFile );
                 if ( !f.open( IO_WriteOnly|IO_Raw ) )
                         return false;
                 
                 int total_written;
                 QString out;
                 out = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><!DOCTYPE Addressbook ><AddressBook>\n"
                         " <Groups>\n"
                         " </Groups>\n"
                         " <Contacts>\n";
                 //QValueList<Contact>::iterator it;
                 QValueListConstIterator<OContact> it;
                 for ( it = m_contactList.begin(); it != m_contactList.end(); ++it ) {
                         out += "<Contact ";
                         (*it).save( out );
                         out += "/>\n";
                         QCString cstr = out.utf8();
                         total_written = f.writeBlock( cstr.data(), cstr.length() );
                         if ( total_written != int(cstr.length()) ) {
                                 f.close();
                                 QFile::remove( strNewFile );
                                 return false;
                         }
                         out = "";
                 }
                 out += " </Contacts>\n</AddressBook>\n";
                 
                 QCString cstr = out.utf8();
                 total_written = f.writeBlock( cstr.data(), cstr.length() );
                 if ( total_written != int( cstr.length() ) ) {
                         f.close();
                         QFile::remove( strNewFile );
                         return false;
                 }
                 f.close();
                 
                 // move the file over, I'm just going to use the system call
                 // because, I don't feel like using QDir.
                 if ( ::rename( strNewFile.latin1(), m_fileName.latin1() ) < 0 ) {
                         qWarning( "problem renaming file %s to %s, errno: %d",
                                   strNewFile.latin1(), m_journalName.latin1(), errno );
                         // remove the tmp file...
                         QFile::remove( strNewFile );
                 }
                 
                 /* The journalfile should be removed now... */
                 removeJournal();
                 return true;
         }
         
         bool load () {
                 m_contactList.clear();
                 
                 /* Load XML-File and journal if it exists */
                 if ( !load ( m_fileName, false ) )
                         return false;
                 /* The returncode of the journalfile is ignored due to the
                  * fact that it does not exist when this class is instantiated !
                  * But there may such a file exist, if the application crashed.
                  * Therefore we try to load it to get the changes before the #
                  * crash happened...
                  */
                 load (m_journalName, true);
                 
                 return true;
         }
 
         void clear () {
                 m_contactList.clear();
 
         }
         
         bool wasChangedExternally()
                 {
                         QFileInfo fi( m_fileName );
                         
                         QDateTime lastmod = fi.lastModified ();
                         
                         return (lastmod != m_readtime);
                 }
         
         QArray<int> allRecords() const {
                 QArray<int> uid_list( m_contactList.count() );
                 
                 uint counter = 0; 
                 QValueListConstIterator<OContact> it;
                 for( it = m_contactList.begin(); it != m_contactList.end(); ++it ){
                         uid_list[counter++] = (*it).uid();
                 }
                 
                 return ( uid_list );
         }
         
         OContact find ( int uid ) const
                 {
                         bool found = false;
                         OContact foundContact; //Create empty contact
 
                         QValueListConstIterator<OContact> it;
                         for( it = m_contactList.begin(); it != m_contactList.end(); ++it ){
                                 if ((*it).uid() == uid){
                                         found = true;
                                         break;
                                 }
                         }
                         if ( found ){
                                 foundContact = *it;
                         }
                         
                         return ( foundContact );
                 }
         
         QArray<int> queryByExample ( const OContact &query, int settings ){
                 
                 QArray<int> m_currentQuery( m_contactList.count() );
                 QValueListConstIterator<OContact> it;
                 uint arraycounter = 0;
                 
                 for( it = m_contactList.begin(); it != m_contactList.end(); ++it ){
                         /* Search all fields and compare them with query object. Store them into list
                          * if all fields matches.
                          */
                         bool allcorrect = true;
                         for ( int i = 0; i < Qtopia::rid; i++ ) {
                                 /* Just compare fields which are not empty in the query object */
                                 if ( !query.field(i).isEmpty() ){
                                         switch ( settings & ~OContactAccess::query_IgnoreCase ){
                                         case OContactAccess::query_RegExp:{
                                                 QRegExp expr ( query.field(i),
                                                                !(settings & OContactAccess::query_IgnoreCase),
                                                                false );
                                                 if ( expr.find ( (*it).field(i), 0 ) == -1 )
                                                         allcorrect = false;
                                         }
                                                 break;
                                         case OContactAccess::query_WildCards:{
                                                 QRegExp expr ( query.field(i),
                                                                !(settings & OContactAccess::query_IgnoreCase),
                                                                true );
                                                 if ( expr.find ( (*it).field(i), 0 ) == -1 )
                                                         allcorrect = false;
                                         }
                                                 break;
                                         case OContactAccess::query_ExactMatch:{
                                                 if (settings & OContactAccess::query_IgnoreCase){
                                                         if ( query.field(i).upper() !=
                                                              (*it).field(i).upper() )
                                                                 allcorrect = false;
                                                 }else{
                                                         if ( query.field(i) != (*it).field(i) )
                                                                 allcorrect = false;
                                                 }
                                         }
                                                 break;
                                         }
                                 }
                         }
                         if ( allcorrect ){
                                 m_currentQuery[arraycounter++] = (*it).uid();
                         }
                 }
                         
                 // Shrink to fit..
                 m_currentQuery.resize(arraycounter);
         
                 return m_currentQuery;
diff --git a/libopie2/opiepim/core/ocontactaccess.cpp b/libopie2/opiepim/core/ocontactaccess.cpp
index 8a8ff08..b5f358b 100644
--- a/libopie2/opiepim/core/ocontactaccess.cpp
+++ b/libopie2/opiepim/core/ocontactaccess.cpp
@@ -1,180 +1,186 @@
 /*
  * Class to manage the Contacts.
  *
  * Copyright (c) 2002 by Stefan Eilers (Eilers.Stefan@epost.de)
  *
  * =====================================================================
          *This program is free software; you can redistribute it and/or
          *modify it under the terms of the GNU Library General Public
  *      License as published by the Free Software Foundation; either
  *      version 2 of the License, or (at your option) any later version.
  * =====================================================================
  * Info: This class could just work with a change in the header-file
  *       of the Contact class ! Therefore our libopie only compiles
  *       with our version of libqpe
  * =====================================================================
  * ToDo: XML-Backend: Automatic reload if something was changed...
  *
  *
  * =====================================================================
  * Version: $Id$
  * =====================================================================
  * History:
  * $Log$
+ * Revision 1.3  2002/10/07 17:34:24  eilers
+ * added OBackendFactory for advanced backend access
+ *
  * Revision 1.2  2002/10/02 16:18:11  eilers
  * debugged and seems to work almost perfectly ..
  *
  * Revision 1.1  2002/09/27 17:11:44  eilers
  * Added API for accessing the Contact-Database ! It is compiling, but
  * please do not expect that anything is working !
  * I will debug that stuff in the next time ..
  * Please read README_COMPILE for compiling !
  *
  *
  */
 
 #include "ocontactaccess.h"
+#include "obackendfactory.h"
 
 #include <qasciidict.h>
 #include <qdatetime.h>
 #include <qfile.h>
 #include <qregexp.h>
 #include <qlist.h>
 #include <qcopchannel_qws.h>
 
 //#include <qpe/qcopenvelope_qws.h>
 #include <qpe/global.h>
 
 #include <errno.h>
 #include <fcntl.h>
 #include <unistd.h>
 #include <stdlib.h>
 
 #include "ocontactaccessbackend_xml.h"
 
 
-OContactAccess::OContactAccess ( const QString appname, const QString filename,
+OContactAccess::OContactAccess ( const QString appname, const QString ,
                          OContactAccessBackend* end, bool autosync ):
         OPimAccessTemplate<OContact>( end ),
         m_changed ( false )
 {
         /* take care of the backend. If there is no one defined, we 
          * will use the XML-Backend as default (until we have a cute SQL-Backend..).
          */
         if( end == 0 ) {
-                end = new OContactAccessBackend_XML( appname, filename );
+                // __asm__("int3");
+                qWarning ("Using BackendFactory !");
+                end = OBackendFactory<OContactAccessBackend>::Default( "contact", appname );
         }
         // Set backend locally and in template
         m_backEnd = end;
         OPimAccessTemplate<OContact>::setBackEnd (end);
         
 
         /* Connect signal of external db change to function */
         QCopChannel *dbchannel = new QCopChannel( "QPE/PIM", this );
         connect( dbchannel, SIGNAL(received(const QCString &, const QByteArray &)),
                this, SLOT(copMessage( const QCString &, const QByteArray &)) );
         if ( autosync ){
                 QCopChannel *syncchannel = new QCopChannel( "QPE/Sync", this );
                 connect( syncchannel, SIGNAL(received(const QCString &, const QByteArray &)),
                          this, SLOT(copMessage( const QCString &, const QByteArray &)) );
         }
 
 
 }
 OContactAccess::~OContactAccess ()
 {
         /* The user may forget to save the changed database, therefore try to
          * do it for him..
          */
         if ( m_changed ) 
                 save();
         // delete m_backEnd; is done by template..
 }
 
 bool OContactAccess::load()
 {
         return ( m_backEnd->load() );
 }
 
 bool OContactAccess::save ()
 {
         /* If the database was changed externally, we could not save the
          * Data. This will remove added items which is unacceptable !
          * Therefore: Reload database and merge the data...
          */
         if ( m_backEnd->wasChangedExternally() )
                 reload();
 
         if ( m_changed ){ 
                 bool status = m_backEnd->save();
                 if ( !status ) return false;
 
                 m_changed = false;
                 /* Now tell everyone that new data is available.
                  */
                 QCopEnvelope e( "QPE/PIM", "addressbookUpdated()" );
 
         }
 
         return true;
 }
 
 const uint OContactAccess::querySettings()
 {
         return ( m_backEnd->querySettings() );
 }
 
 bool OContactAccess::hasQuerySettings ( int querySettings ) const
 {
         return ( m_backEnd->hasQuerySettings ( querySettings ) );
 }
 
 bool OContactAccess::add ( const OContact& newcontact )
 {
         m_changed = true;
         return ( m_backEnd->add ( newcontact ) );
 }
 
 bool OContactAccess::replace ( const OContact& contact )
 {
         m_changed = true;
         return ( m_backEnd->replace ( contact ) );
 }
 
 bool OContactAccess::remove ( const OContact& t )
 {
         m_changed = true;
         return ( m_backEnd->remove ( t.uid() ) );
 }
 
 bool OContactAccess::remove ( int uid )
 {
         m_changed = true;
         return ( m_backEnd->remove ( uid ) );
 }
 
 bool OContactAccess::wasChangedExternally()const
 {
         return ( m_backEnd->wasChangedExternally() );
 }
 
 
 bool OContactAccess::reload()
 {
         return ( m_backEnd->reload() );
 }
 
 void OContactAccess::copMessage( const QCString &msg, const QByteArray & )
 {
         if ( msg == "addressbookUpdated()" ){
                 qWarning ("OContactAccess: Received addressbokUpdated()");
                 emit signalChanged ( this );
         } else if ( msg == "flush()" ) {
                 qWarning ("OContactAccess: Received flush()");
                 save ();
         } else if ( msg == "reload()" ) {
                 qWarning ("OContactAccess: Received reload()");
                 reload ();
                 emit signalChanged ( this );
         }
 }