Diffstat (limited to 'libopie2/opiepim/backend/ocontactaccessbackend_xml.h') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | libopie2/opiepim/backend/ocontactaccessbackend_xml.h | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/libopie2/opiepim/backend/ocontactaccessbackend_xml.h b/libopie2/opiepim/backend/ocontactaccessbackend_xml.h index 50ea329..12a75ba 100644 --- a/libopie2/opiepim/backend/ocontactaccessbackend_xml.h +++ b/libopie2/opiepim/backend/ocontactaccessbackend_xml.h @@ -1,171 +1,182 @@ /* * 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 1.4 2002/10/16 10:52:40 eilers + * Added some docu to the interface and now using the cache infrastucture by zecke.. :) + * * Revision 1.3 2002/10/14 16:21:54 eilers * Some minor interface updates * * 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 ) + OContactAccessBackend_XML ( QString appname, QString filename = 0l ): + m_changed( false ) { 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() { + + if ( !m_changed ) + return true; + 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(); + + m_changed = false; 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(); + m_changed = false; } 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 ); } @@ -254,73 +265,80 @@ class OContactAccessBackend_XML : public OContactAccessBackend { bool hasQuerySettings (uint querySettings) const { /* OContactAccess::IgnoreCase may be added with one * of the other settings, but never used alone. * The other settings are just valid alone... */ switch ( querySettings & ~OContactAccess::IgnoreCase ){ case OContactAccess::RegExp: return ( true ); case OContactAccess::WildCards: return ( true ); case OContactAccess::ExactMatch: return ( true ); default: return ( false ); } } bool add ( const OContact &newcontact ) { //qWarning("odefaultbackend: ACTION::ADD"); updateJournal (newcontact, OContact::ACTION_ADD); addContact_p( newcontact ); + + m_changed = true; + return true; } bool replace ( const OContact &contact ) { + m_changed = true; + bool found = false; QValueListIterator<OContact> it; for( it = m_contactList.begin(); it != m_contactList.end(); ++it ){ if ( (*it).uid() == contact.uid() ){ found = true; break; } } if (found) { updateJournal (contact, OContact::ACTION_REPLACE); m_contactList.remove (it); m_contactList.append (contact); return true; } else return false; } bool remove ( int uid ) { + m_changed = true; + bool found = false; QValueListIterator<OContact> it; for( it = m_contactList.begin(); it != m_contactList.end(); ++it ){ if ((*it).uid() == uid){ found = true; break; } } if (found) { updateJournal ( *it, OContact::ACTION_REMOVE); m_contactList.remove (it); return true; } else return false; } bool reload(){ /* Reload is the same as load in this implementation */ return ( load() ); } private: void addContact_p( const OContact &newcontact ){ m_contactList.append (newcontact); @@ -532,32 +550,33 @@ class OContactAccessBackend_XML : public OContactAccessBackend { // get a XML-File which is readable by our parser. // This is just a cheat, but better than rewrite the parser. if ( created ){ buf = "<Contacts>"; QCString cstr = buf.utf8(); f.writeBlock( cstr.data(), cstr.length() ); } buf = "<Contact "; cnt.save( buf ); buf += " action=\"" + QString::number( (int)action ) + "\" "; buf += "/>\n"; QCString cstr = buf.utf8(); f.writeBlock( cstr.data(), cstr.length() ); } void removeJournal() { QFile f ( m_journalName ); if ( f.exists() ) f.remove(); } protected: + bool m_changed; QString m_journalName; QString m_fileName; QString m_appName; QValueList<OContact> m_contactList; QDateTime m_readtime; }; #endif |