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tdepim/libkcal/resourcecached.cpp

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/*
This file is part of libkcal.
Copyright (c) 2003,2004 Cornelius Schumacher <schumacher@kde.org>
This library 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.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
// TODO [FIXME] IMPORTANT
// If a cached resource initiates a reload while an event editor is active, or an event is locked for editing,
// a big fat crash will ensue. The reload subroutine must ABORT if ANY korganizer events are locked for editing!!!
#include <tqdatastream.h>
#include <tqdatetime.h>
#include <tqfile.h>
#include <tqstring.h>
#include <tqptrlist.h>
#include <kdebug.h>
#include <klocale.h>
#include <kurl.h>
#include <kstandarddirs.h>
#include "event.h"
#include "exceptions.h"
#include "incidence.h"
#include "journal.h"
#include "todo.h"
#include <unistd.h>
#include "resourcecached.h"
using namespace KCal;
static bool m_editoropen = false;
ResourceCached::ResourceCached( const TDEConfig* config )
: ResourceCalendar( config ), mCalendar( TQString::fromLatin1( "UTC" ) ),
mReloadPolicy( ReloadNever ), mReloadInterval( 10 ),
mReloadTimer( 0, "mReloadTimer" ), mReloaded( false ),
mSavePolicy( SaveNever ), mSaveInterval( 10 ),
mSaveTimer( 0, "mSaveTimer" ), mIdMapper( "kcal/uidmaps/" )
{
connect( &mReloadTimer, TQT_SIGNAL( timeout() ), TQT_SLOT( slotReload() ) );
connect( &mSaveTimer, TQT_SIGNAL( timeout() ), TQT_SLOT( slotSave() ) );
}
ResourceCached::~ResourceCached()
{
}
void ResourceCached::setReloadPolicy( int i )
{
mReloadPolicy = i;
setupReloadTimer();
}
int ResourceCached::reloadPolicy() const
{
return mReloadPolicy;
}
void ResourceCached::setReloadInterval( int minutes )
{
mReloadInterval = minutes;
}
int ResourceCached::reloadInterval() const
{
return mReloadInterval;
}
void ResourceCached::setSavePolicy( int i )
{
mSavePolicy = i;
setupSaveTimer();
}
int ResourceCached::savePolicy() const
{
return mSavePolicy;
}
void ResourceCached::setSaveInterval( int minutes )
{
mSaveInterval = minutes;
}
int ResourceCached::saveInterval() const
{
return mSaveInterval;
}
void ResourceCached::readConfig( const TDEConfig *config )
{
mReloadPolicy = config->readNumEntry( "ReloadPolicy", ReloadNever );
mReloadInterval = config->readNumEntry( "ReloadInterval", 10 );
mSaveInterval = config->readNumEntry( "SaveInterval", 10 );
mSavePolicy = config->readNumEntry( "SavePolicy", SaveNever );
mLastLoad = config->readDateTimeEntry( "LastLoad" );
mLastSave = config->readDateTimeEntry( "LastSave" );
setupSaveTimer();
setupReloadTimer();
}
void ResourceCached::setupSaveTimer()
{
if ( mSavePolicy == SaveInterval ) {
kdDebug(5800) << "ResourceCached::setSavePolicy(): start save timer (interval "
<< mSaveInterval << " minutes)." << endl;
mSaveTimer.start( mSaveInterval * 60 * 1000 ); // n minutes
} else {
mSaveTimer.stop();
}
}
void ResourceCached::setupReloadTimer()
{
if ( mReloadPolicy == ReloadInterval ) {
kdDebug(5800) << "ResourceCached::setSavePolicy(): start reload timer "
"(interval " << mReloadInterval << " minutes)" << endl;
mReloadTimer.start( mReloadInterval * 60 * 1000 ); // n minutes
} else {
mReloadTimer.stop();
}
}
void ResourceCached::writeConfig( TDEConfig *config )
{
config->writeEntry( "ReloadPolicy", mReloadPolicy );
config->writeEntry( "ReloadInterval", mReloadInterval );
config->writeEntry( "SavePolicy", mSavePolicy );
config->writeEntry( "SaveInterval", mSaveInterval );
config->writeEntry( "LastLoad", mLastLoad );
config->writeEntry( "LastSave", mLastSave );
}
bool ResourceCached::addEvent(Event *event)
{
return mCalendar.addEvent( event );
}
bool ResourceCached::addEvent(Event *event, const TQString &subresource )
{
Q_UNUSED( subresource ); // CalendarLocal does not support subresources
return mCalendar.addEvent( event );
}
// probably not really efficient, but...it works for now.
bool ResourceCached::deleteEvent( Event *event )
{
kdDebug(5800) << "ResourceCached::deleteEvent" << endl;
return mCalendar.deleteEvent( event );
}
Event *ResourceCached::event( const TQString &uid )
{
return mCalendar.event( uid );
}
Event::List ResourceCached::rawEventsForDate( const TQDate &qd,
EventSortField sortField,
SortDirection sortDirection )
{
Event::List list = mCalendar.rawEventsForDate( qd, sortField, sortDirection );
return list;
}
Event::List ResourceCached::rawEvents( const TQDate &start, const TQDate &end,
bool inclusive )
{
return mCalendar.rawEvents( start, end, inclusive );
}
Event::List ResourceCached::rawEventsForDate( const TQDateTime &qdt )
{
return mCalendar.rawEventsForDate( qdt.date() );
}
Event::List ResourceCached::rawEvents( EventSortField sortField, SortDirection sortDirection )
{
return mCalendar.rawEvents( sortField, sortDirection );
}
bool ResourceCached::addTodo( Todo *todo )
{
return mCalendar.addTodo( todo );
}
bool ResourceCached::addTodo( Todo *todo, const TQString &subresource )
{
Q_UNUSED( subresource ); // CalendarLocal does not support subresources
return mCalendar.addTodo( todo );
}
bool ResourceCached::deleteTodo( Todo *todo )
{
return mCalendar.deleteTodo( todo );
}
bool ResourceCached::deleteJournal( Journal *journal )
{
return mCalendar.deleteJournal( journal );
}
Todo::List ResourceCached::rawTodos( TodoSortField sortField, SortDirection sortDirection )
{
return mCalendar.rawTodos( sortField, sortDirection );
}
Todo *ResourceCached::todo( const TQString &uid )
{
return mCalendar.todo( uid );
}
Todo::List ResourceCached::rawTodosForDate( const TQDate &date )
{
return mCalendar.rawTodosForDate( date );
}
bool ResourceCached::addJournal( Journal *journal )
{
return mCalendar.addJournal( journal );
}
bool ResourceCached::addJournal( Journal *journal, const TQString &subresource )
{
Q_UNUSED( subresource ); // CalendarLocal does not support subresources
return mCalendar.addJournal( journal );
}
Journal *ResourceCached::journal( const TQString &uid )
{
return mCalendar.journal( uid );
}
Journal::List ResourceCached::rawJournals( JournalSortField sortField, SortDirection sortDirection )
{
return mCalendar.rawJournals( sortField, sortDirection );
}
Journal::List ResourceCached::rawJournalsForDate( const TQDate &date )
{
return mCalendar.rawJournalsForDate( date );
}
Alarm::List ResourceCached::alarmsTo( const TQDateTime &to )
{
return mCalendar.alarmsTo( to );
}
Alarm::List ResourceCached::alarms( const TQDateTime &from, const TQDateTime &to )
{
// kdDebug(5800) << "ResourceCached::alarms(" << from.toString() << " - " << to.toString() << ")\n";
return mCalendar.alarms( from, to );
}
void ResourceCached::setTimeZoneId( const TQString& tzid )
{
mCalendar.setTimeZoneId( tzid );
}
TQString ResourceCached::timeZoneId() const
{
return mCalendar.timeZoneId();
}
void ResourceCached::clearChanges()
{
mAddedIncidences.clear();
mChangedIncidences.clear();
mDeletedIncidences.clear();
}
void ResourceCached::loadCache()
{
setIdMapperIdentifier();
mIdMapper.load();
if ( TDEStandardDirs::exists( cacheFile() ) ) {
mCalendar.load( cacheFile() );
if ( readOnly() ) {
Incidence::List incidences( rawIncidences() );
Incidence::List::Iterator it;
for ( it = incidences.begin(); it != incidences.end(); ++it ) {
(*it)->setReadOnly( true );
}
}
}
}
void ResourceCached::saveCache()
{
kdDebug(5800) << "ResourceCached::saveCache(): " << cacheFile() << endl;
setIdMapperIdentifier();
mIdMapper.save();
mCalendar.save( cacheFile() );
}
void ResourceCached::setIdMapperIdentifier()
{
mIdMapper.setIdentifier( type() + "_" + identifier() );
}
void ResourceCached::clearCache()
{
mCalendar.close();
}
void ResourceCached::clearEventsCache()
{
mCalendar.closeEvents();
}
void ResourceCached::clearTodosCache()
{
mCalendar.closeTodos();
}
void ResourceCached::clearJournalsCache()
{
mCalendar.closeJournals();
}
void ResourceCached::cleanUpEventCache( const Event::List &eventList )
{
CalendarLocal calendar ( TQString::fromLatin1( "UTC" ) );
if ( TDEStandardDirs::exists( cacheFile() ) )
calendar.load( cacheFile() );
else
return;
Event::List list = calendar.events();
Event::List::ConstIterator cacheIt, it;
for ( cacheIt = list.begin(); cacheIt != list.end(); ++cacheIt ) {
bool found = false;
for ( it = eventList.begin(); it != eventList.end(); ++it ) {
if ( (*it)->uid() == (*cacheIt)->uid() )
found = true;
}
if ( !found ) {
mIdMapper.removeRemoteId( mIdMapper.remoteId( (*cacheIt)->uid() ) );
Event *event = mCalendar.event( (*cacheIt)->uid() );
if ( event )
mCalendar.deleteEvent( event );
}
}
calendar.close();
}
void ResourceCached::cleanUpTodoCache( const Todo::List &todoList )
{
CalendarLocal calendar ( TQString::fromLatin1( "UTC" ) );
if ( TDEStandardDirs::exists( cacheFile() ) )
calendar.load( cacheFile() );
else
return;
Todo::List list = calendar.todos();
Todo::List::ConstIterator cacheIt, it;
for ( cacheIt = list.begin(); cacheIt != list.end(); ++cacheIt ) {
bool found = false;
for ( it = todoList.begin(); it != todoList.end(); ++it ) {
if ( (*it)->uid() == (*cacheIt)->uid() )
found = true;
}
if ( !found ) {
mIdMapper.removeRemoteId( mIdMapper.remoteId( (*cacheIt)->uid() ) );
Todo *todo = mCalendar.todo( (*cacheIt)->uid() );
if ( todo )
mCalendar.deleteTodo( todo );
}
}
calendar.close();
}
KPIM::IdMapper& ResourceCached::idMapper()
{
return mIdMapper;
}
TQString ResourceCached::cacheFile() const
{
return locateLocal( "cache", "kcal/tderesources/" + identifier() );
}
TQString ResourceCached::changesCacheFile( const TQString &type ) const
{
return locateLocal( "cache", "kcal/changescache/" + identifier() + "_" + type );
}
void ResourceCached::saveChangesCache( const TQMap<Incidence*, bool> &map, const TQString &type )
{
CalendarLocal calendar ( TQString::fromLatin1( "UTC" ) );
bool isEmpty = true;
TQMap<Incidence *,bool>::ConstIterator it;
for ( it = map.begin(); it != map.end(); ++it ) {
isEmpty = false;
calendar.addIncidence( it.key()->clone() );
}
if ( !isEmpty ) {
calendar.save( changesCacheFile( type ) );
} else {
TQFile file( changesCacheFile( type ) );
file.remove();
}
calendar.close();
}
void ResourceCached::saveChangesCache()
{
saveChangesCache( mAddedIncidences, "added" );
saveChangesCache( mDeletedIncidences, "deleted" );
saveChangesCache( mChangedIncidences, "changed" );
}
void ResourceCached::loadChangesCache( TQMap<Incidence*, bool> &map, const TQString &type )
{
CalendarLocal calendar ( TQString::fromLatin1( "UTC" ) );
if ( TDEStandardDirs::exists( changesCacheFile( type ) ) )
calendar.load( changesCacheFile( type ) );
else
return;
const Incidence::List list = calendar.incidences();
Incidence::List::ConstIterator it;
for ( it = list.begin(); it != list.end(); ++it )
map.insert( (*it)->clone(), true );
calendar.close();
}
void ResourceCached::loadChangesCache()
{
loadChangesCache( mAddedIncidences, "added" );
loadChangesCache( mDeletedIncidences, "deleted" );
loadChangesCache( mChangedIncidences, "changed" );
}
void ResourceCached::calendarIncidenceAdded( Incidence *i )
{
#if 1
kdDebug(5800) << "ResourceCached::calendarIncidenceAdded(): "
<< i->uid() << endl;
#endif
TQMap<Incidence *,bool>::ConstIterator it;
it = mAddedIncidences.find( i );
if ( it == mAddedIncidences.end() ) {
mAddedIncidences.insert( i, true );
}
checkForAutomaticSave();
}
void ResourceCached::calendarIncidenceChanged( Incidence *i )
{
#if 1
kdDebug(5800) << "ResourceCached::calendarIncidenceChanged(): "
<< i->uid() << endl;
#endif
TQMap<Incidence *,bool>::ConstIterator it;
it = mChangedIncidences.find( i );
// FIXME: If you modify an added incidence, there's no need to add it to mChangedIncidences!
if ( it == mChangedIncidences.end() ) {
mChangedIncidences.insert( i, true );
}
checkForAutomaticSave();
}
void ResourceCached::calendarIncidenceDeleted( Incidence *i )
{
#if 1
kdDebug(5800) << "ResourceCached::calendarIncidenceDeleted(): "
<< i->uid() << endl;
#endif
if (i->hasRecurrenceID()) {
// This incidence has a parent; notify the parent of the child's death and do not destroy the parent!
// Get the parent
IncidenceList il = i->childIncidences();
IncidenceListIterator it;
it = il.begin();
Incidence *parentIncidence;
parentIncidence = this->incidence(*it);
// Remove the child
calendarIncidenceChanged(parentIncidence);
}
else {
TQMap<Incidence *,bool>::ConstIterator it;
it = mDeletedIncidences.find( i );
if ( it == mDeletedIncidences.end() ) {
mDeletedIncidences.insert( i, true );
}
}
checkForAutomaticSave();
}
Incidence::List ResourceCached::addedIncidences() const
{
Incidence::List added;
TQMap<Incidence *,bool>::ConstIterator it;
for( it = mAddedIncidences.begin(); it != mAddedIncidences.end(); ++it ) {
added.append( it.key() );
}
return added;
}
Incidence::List ResourceCached::changedIncidences() const
{
Incidence::List changed;
TQMap<Incidence *,bool>::ConstIterator it;
for( it = mChangedIncidences.begin(); it != mChangedIncidences.end(); ++it ) {
changed.append( it.key() );
}
return changed;
}
Incidence::List ResourceCached::deletedIncidences() const
{
Incidence::List deleted;
TQMap<Incidence *,bool>::ConstIterator it;
for( it = mDeletedIncidences.begin(); it != mDeletedIncidences.end(); ++it ) {
deleted.append( it.key() );
}
return deleted;
}
Incidence::List ResourceCached::allChanges() const
{
Incidence::List changes;
TQMap<Incidence *,bool>::ConstIterator it;
for( it = mAddedIncidences.begin(); it != mAddedIncidences.end(); ++it ) {
changes.append( it.key() );
}
for( it = mChangedIncidences.begin(); it != mChangedIncidences.end(); ++it ) {
changes.append( it.key() );
}
for( it = mDeletedIncidences.begin(); it != mDeletedIncidences.end(); ++it ) {
changes.append( it.key() );
}
return changes;
}
bool ResourceCached::hasChanges() const
{
return !( mAddedIncidences.isEmpty() && mChangedIncidences.isEmpty() &&
mDeletedIncidences.isEmpty() );
}
void ResourceCached::clearChange( Incidence *incidence )
{
clearChange( incidence->uid() );
}
void ResourceCached::clearChange( const TQString &uid )
{
TQMap<Incidence*, bool>::Iterator it;
for ( it = mAddedIncidences.begin(); it != mAddedIncidences.end(); ++it )
if ( it.key()->uid() == uid ) {
mAddedIncidences.remove( it );
break;
}
for ( it = mChangedIncidences.begin(); it != mChangedIncidences.end(); ++it )
if ( it.key()->uid() == uid ) {
mChangedIncidences.remove( it );
break;
}
for ( it = mDeletedIncidences.begin(); it != mDeletedIncidences.end(); ++it )
if ( it.key()->uid() == uid ) {
mDeletedIncidences.remove( it );
break;
}
}
void ResourceCached::enableChangeNotification()
{
mCalendar.registerObserver( this );
}
void ResourceCached::disableChangeNotification()
{
mCalendar.unregisterObserver( this );
}
bool ResourceCached::editorWindowOpen()
{
return m_editoropen;
}
void ResourceCached::setEditorWindowOpen(bool open)
{
m_editoropen = open;
}
void ResourceCached::slotReload()
{
if ( !isActive() ) return;
// Make sure no editor windows are open
if (editorWindowOpen() == true) return;
kdDebug(5800) << "ResourceCached::slotReload()" << endl;
load();
}
void ResourceCached::slotSave()
{
if ( !isActive() ) return;
kdDebug(5800) << "ResourceCached::slotSave()" << endl;
save();
}
void ResourceCached::checkForAutomaticSave()
{
if ( mSavePolicy == SaveAlways ) {
kdDebug(5800) << "ResourceCached::checkForAutomaticSave(): save now" << endl;
mSaveTimer.start( 1 * 1000, true ); // 1 second
} else if ( mSavePolicy == SaveDelayed ) {
kdDebug(5800) << "ResourceCached::checkForAutomaticSave(): save delayed"
<< endl;
mSaveTimer.start( 15 * 1000, true ); // 15 seconds
}
}
bool ResourceCached::checkForReload()
{
if ( mReloadPolicy == ReloadNever ) return false;
if ( mReloadPolicy == ReloadOnStartup ) return !mReloaded;
return true;
}
bool ResourceCached::checkForSave()
{
if ( mSavePolicy == SaveNever ) return false;
return true;
}
void ResourceCached::addInfoText( TQString &txt ) const
{
if ( mLastLoad.isValid() ) {
txt += "<br>";
txt += i18n("Last loaded: %1")
.arg( TDEGlobal::locale()->formatDateTime( mLastLoad ) );
}
if ( mLastSave.isValid() ) {
txt += "<br>";
txt += i18n("Last saved: %1")
.arg( TDEGlobal::locale()->formatDateTime( mLastSave ) );
}
}
void ResourceCached::doClose()
{
mCalendar.close();
}
bool ResourceCached::doOpen()
{
kdDebug(5800) << "Opening resource " << resourceName() << endl;
return true;
}
void KCal::ResourceCached::setOwner( const Person &owner )
{
mCalendar.setOwner( owner );
}
const Person & KCal::ResourceCached::getOwner() const
{
return mCalendar.getOwner();
}
#include "resourcecached.moc"