added parsing method to iCalCalendar

[sope] / sope-ical / NGiCal / iCalCalendar.m

diff --git a/sope-ical/NGiCal/iCalCalendar.m b/sope-ical/NGiCal/iCalCalendar.m
index 3554848d6d8045789de283d29424e98f92703bbe..9bdddcbab33558c06bf4fcd85c66a1f4a70690da 100644 (file)
--- a/sope-ical/NGiCal/iCalCalendar.m
+++ b/sope-ical/NGiCal/iCalCalendar.m
@@ -20,10 +20,96 @@
 */
 
 #include "iCalCalendar.h"
+#include <SaxObjC/SaxObjC.h>
+#include "iCalEntityObject.h"
 #include "common.h"
 
+@interface iCalCalendar(Privates)
+- (void)addToEvents:(iCalEvent *)_event;
+- (void)addToTimezones:(id)_tz;
+- (void)addToTodos:(iCalToDo *)_todo;
+- (void)addToJournals:(iCalJournal *)_obj;
+- (void)addToFreeBusys:(iCalFreeBusy *)_obj;
+@end
+
 @implementation iCalCalendar
 
+static id<NSObject,SaxXMLReader> parser  = nil; // THREAD
+static SaxObjectDecoder          *sax    = nil; // THREAD
+
++ (id<NSObject,SaxXMLReader>)iCalParser {
+  if (sax == nil) {
+    sax = [[SaxObjectDecoder alloc] initWithMappingNamed:@"NGiCal"];;
+    if (sax == nil) {
+      NSLog(@"ERROR(%s): could not create iCal SAX handler!",
+           __PRETTY_FUNCTION__);
+    }
+  }
+  if (sax != nil && parser == nil) {
+    parser =
+      [[[SaxXMLReaderFactory standardXMLReaderFactory] 
+                            createXMLReaderForMimeType:@"text/calendar"]
+                             retain];
+    if (parser == nil) {
+      NSLog(@"ERROR(%s): did not find a parser for text/calendar!",
+           __PRETTY_FUNCTION__);
+      return nil;
+    }
+    
+    [parser setContentHandler:sax];
+    [parser setErrorHandler:sax];
+  }
+  return parser;
+}
+
++ (iCalCalendar *)parseCalendarFromSource:(id)_src {
+  static id<NSObject,SaxXMLReader> parser;
+  id root, cal;
+  
+  if ((parser = [self iCalParser]) == nil)
+    return nil;
+  
+  [parser parseFromSource:_src];
+  root = [[sax rootObject] retain];
+  [sax reset];
+  
+  if (root == nil)
+    return nil;
+  if ([root isKindOfClass:self])
+    return [root autorelease];
+  
+  if (![root isKindOfClass:[iCalEntityObject class]]) {
+    NSLog(@"ERROR(%s): parsed object is of an unexpected class %@: %@",
+         __PRETTY_FUNCTION__, NSStringFromClass([root class]), root);
+    [root release];
+    return nil;
+  }
+  
+  /* so we just got an iCalEntityObject, wrap that manually into a cal */
+  cal = [[[self alloc] initWithEntityObject:root] autorelease];
+  [root release]; root = nil;
+  return cal;
+}
+
+- (id)initWithEntityObject:(iCalEntityObject *)_entityObject {
+  if ((self = [self init])) {
+    if ([_entityObject isKindOfClass:[iCalEvent class]])
+      [self addToEvents:(iCalEvent *)_entityObject];
+    else if ([_entityObject isKindOfClass:[iCalToDo class]])
+      [self addToTodos:(iCalToDo *)_entityObject];
+    else if ([_entityObject isKindOfClass:[iCalJournal class]])
+      [self addToJournals:(iCalJournal *)_entityObject];
+    else if ([_entityObject isKindOfClass:[iCalFreeBusy class]])
+      [self addToFreeBusys:(iCalFreeBusy *)_entityObject];
+    else if ([_entityObject isNotNull]) {
+      [self errorWithFormat:@"Unexpected entity object: %@", _entityObject];
+      [self release];
+      return nil;
+    }
+  }
+  return self;
+}
+
 - (void)dealloc {
   [self->version   release];
   [self->calscale  release];
@@ -112,7 +198,7 @@
   return self->journals;
 }
 
-- (void)addToFreeBusys:(iCalJournal *)_obj {
+- (void)addToFreeBusys:(iCalFreeBusy *)_obj {
   if (_obj == nil) return;
   if (self->freeBusys == nil)
     self->freeBusys = [[NSMutableArray alloc] initWithCapacity:4];