252 lines
7.5 KiB
Mathematica
252 lines
7.5 KiB
Mathematica
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/*
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Copyright (C) 2004 SKYRIX Software AG
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This file is part of OpenGroupware.org.
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OGo is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 2, or (at your option) any
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later version.
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OGo is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with OGo; see the file COPYING. If not, write to the
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Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA.
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*/
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#include "OCSiCalFieldExtractor.h"
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#include "common.h"
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#include <SaxObjC/SaxObjC.h>
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#include <NGiCal/NGiCal.h>
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#include "iCalEntityObject+OCS.h"
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#include "iCalRepeatableEntityObject+OCS.h"
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@implementation OCSiCalFieldExtractor
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static id<NSObject,SaxXMLReader> parser = nil;
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static SaxObjectDecoder *sax = nil;
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static OCSiCalFieldExtractor *extractor = nil;
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static NSCalendarDate *distantFuture = nil;
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static NSNumber *distantFutureNumber = nil;
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+ (void)initialize {
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static BOOL didInit = NO;
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if (didInit) return;
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didInit = YES;
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parser = [[[SaxXMLReaderFactory standardXMLReaderFactory]
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createXMLReaderForMimeType:@"text/calendar"]
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retain];
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if (parser == nil)
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NSLog(@"ERROR: did not find a parser for text/calendar!");
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sax = [[SaxObjectDecoder alloc] initWithMappingNamed:@"NGiCal"];
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if (sax == nil)
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NSLog(@"ERROR: could not create the iCal SAX handler!");
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[parser setContentHandler:sax];
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[parser setErrorHandler:sax];
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distantFuture = [[NSCalendarDate distantFuture] retain];
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/* INT_MAX due to Postgres constraint */
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distantFutureNumber = [[NSNumber numberWithUnsignedInt:INT_MAX] retain];
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}
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+ (id)sharedICalFieldExtractor {
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if (extractor == nil) extractor = [[self alloc] init];
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return extractor;
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}
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- (void)dealloc {
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[super dealloc];
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}
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/* operations */
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- (NSNumber *)numberForDate:(NSCalendarDate *)_date {
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if (_date == distantFuture)
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return distantFutureNumber;
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return [NSNumber numberWithUnsignedInt:[_date timeIntervalSince1970]];
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}
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- (NSMutableDictionary *)extractQuickFieldsFromEvent:(iCalEvent *)_event {
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NSMutableDictionary *row;
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NSCalendarDate *startDate, *endDate;
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NSArray *attendees;
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NSString *uid, *title, *location, *status, *accessClass;
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NSNumber *sequence;
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id organizer;
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id participants, partmails;
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NSMutableString *partstates;
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unsigned i, count;
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if (_event == nil)
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return nil;
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/* extract values */
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startDate = [_event startDate];
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endDate = [_event endDate];
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uid = [_event uid];
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title = [_event summary];
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location = [_event location];
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sequence = [_event sequence];
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accessClass = [[_event accessClass] uppercaseString];
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status = [[_event status] uppercaseString];
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attendees = [_event attendees];
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partmails = [attendees valueForKey:@"rfc822Email"];
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partmails = [partmails componentsJoinedByString:@"\n"];
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participants = [attendees valueForKey:@"cn"];
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participants = [participants componentsJoinedByString:@"\n"];
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/* build row */
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row = [NSMutableDictionary dictionaryWithCapacity:8];
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if ([uid isNotNull])
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[row setObject:uid forKey:@"uid"];
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else
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[self logWithFormat:@"WARNING: could not extract a uid from event!"];
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[row setObject:[NSNumber numberWithBool:[_event isAllDay]]
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forKey:@"isallday"];
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[row setObject:[NSNumber numberWithBool:[_event isRecurrent]]
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forKey:@"iscycle"];
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[row setObject:[NSNumber numberWithBool:[_event isOpaque]]
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forKey:@"isopaque"];
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[row setObject:[NSNumber numberWithInt:[_event priorityNumber]]
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forKey:@"priority"];
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if ([title isNotNull]) [row setObject:title forKey:@"title"];
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if ([location isNotNull]) [row setObject:location forKey:@"location"];
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if ([sequence isNotNull]) [row setObject:sequence forKey:@"sequence"];
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if ([startDate isNotNull])
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[row setObject:[self numberForDate:startDate] forKey:@"startdate"];
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if ([endDate isNotNull])
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[row setObject:[self numberForDate:endDate] forKey:@"enddate"];
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if ([_event isRecurrent]) {
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NSCalendarDate *date;
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date = [_event lastPossibleRecurrenceStartDate];
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if (!date) {
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/* this could also be *nil*, but in the end it makes the fetchspecs
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more complex - thus we set it to a "reasonable" distant future */
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date = distantFuture;
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}
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[row setObject:[self numberForDate:date] forKey:@"cycleenddate"];
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[row setObject:[_event cycleInfo] forKey:@"cycleinfo"];
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}
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if ([participants length] > 0)
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[row setObject:participants forKey:@"participants"];
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if ([partmails length] > 0)
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[row setObject:partmails forKey:@"partmails"];
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if ([status isNotNull]) {
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int code = 1;
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if ([status isEqualToString:@"TENTATIVE"])
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code = 0;
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else if ([status isEqualToString:@"CANCELLED"])
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code = 2;
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[row setObject:[NSNumber numberWithInt:code] forKey:@"status"];
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}
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else {
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/* confirmed by default */
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[row setObject:[NSNumber numberWithInt:1] forKey:@"status"];
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}
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if([accessClass isNotNull] && ![accessClass isEqualToString:@"PUBLIC"]) {
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[row setObject:[NSNumber numberWithBool:NO] forKey:@"ispublic"];
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}
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else {
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[row setObject:[NSNumber numberWithBool:YES] forKey:@"ispublic"];
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}
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organizer = [_event organizer];
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if (organizer) {
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NSString *email;
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email = [organizer valueForKey:@"rfc822Email"];
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if (email)
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[row setObject:email forKey:@"orgmail"];
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}
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/* construct partstates */
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count = [attendees count];
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partstates = [[NSMutableString alloc] initWithCapacity:count * 2];
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for ( i = 0; i < count; i++) {
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iCalPerson *p;
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iCalPersonPartStat stat;
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p = [attendees objectAtIndex:i];
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stat = [p participationStatus];
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if(i != 0)
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[partstates appendString:@"\n"];
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[partstates appendFormat:@"%d", stat];
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}
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[row setObject:partstates forKey:@"partstates"];
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[partstates release];
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return row;
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}
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- (NSMutableDictionary *)extractQuickFieldsFromCalendar:(iCalCalendar *)_cal {
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NSArray *events;
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if (_cal == nil)
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return nil;
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events = [_cal events];
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if ([events count] == 0) {
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[self logWithFormat:@"ERROR: given calendar contains no events: %@", _cal];
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return nil;
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}
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if ([events count] > 1) {
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[self logWithFormat:
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@"WARNING: given calendar contains more than one event: %@",
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_cal];
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}
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return [self extractQuickFieldsFromEvent:[events objectAtIndex:0]];
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}
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- (NSMutableDictionary *)extractQuickFieldsFromContent:(NSString *)_content {
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NSAutoreleasePool *pool;
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NSDictionary *fields;
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id cal;
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if (parser == nil || sax == nil)
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return nil;
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if ([_content length] == 0)
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return nil;
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pool = [[NSAutoreleasePool alloc] init];
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[parser parseFromSource:_content];
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cal = [sax rootObject];
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fields = nil;
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if ([cal isKindOfClass:[iCalEvent class]])
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fields = [[self extractQuickFieldsFromEvent:cal] retain];
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else if ([cal isKindOfClass:[iCalCalendar class]])
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fields = [[self extractQuickFieldsFromCalendar:cal] retain];
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else if ([cal isNotNull]) {
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[self logWithFormat:@"ERROR: unexpected iCalendar parse result: %@",
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cal];
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}
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[sax reset];
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[pool release];
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return [fields autorelease];
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}
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@end /* OCSiCalFieldExtractor */
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