| -rw-r--r-- | libopie2/opiepim/backend/obackendfactory.h | 88 | ||||
| -rw-r--r-- | libopie2/opiepim/backend/ocontactaccessbackend.h | 4 | ||||
| -rw-r--r-- | libopie2/opiepim/backend/ocontactaccessbackend_xml.h | 10 |
3 files changed, 102 insertions, 0 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 @@ -1,135 +1,145 @@ /* * 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(); |