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/* -*-objc-*-
*
* GNUstep RSS Kit
* Copyright (C) 2006 Guenther Noack
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, in version 2.1
* of the License
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#import "RSSLinks.h"
#import "GNUstep.h"
@implementation RSSLink
+(id) linkWithString: (NSString*) aURLString
andRel: (NSString*) aRelation
andType: (NSString*) aType
{
id result = nil;
if (aRelation == nil || // nil defaults to "related"
[aRelation isEqualToString: @"related"]) {
result = [RSSRelatedLink relatedLinkWithString: aURLString
andType: aType];
} else if ([aRelation isEqualToString: @"alternate"]) {
result = [RSSAlternativeLink alternativeLinkWithString: aURLString
andType: aType];
} else if ([aRelation isEqualToString: @"enclosure"]) {
result = [RSSEnclosureLink enclosureLinkWithString: aURLString
andType: aType];
} else if ([aRelation isEqualToString: @"via"]) {
result = [RSSViaLink viaLinkWithString: aURLString
andType: aType];
} else if ([aRelation isEqualToString: @"self"]) {
result = nil; // self relation not supported yet! FIXME
}
return result;
}
-(id) initWithString: (NSString*) aURLString
{
return [self initWithString: aURLString
andType: nil];
}
-(id) initWithString: (NSString*) aURLString
andType: (NSString*) aType
{
if ([self isMemberOfClass: [RSSLink class]]) {
[self release];
[NSException
raise: @"Abstract Class Instantiation"
format: @"Abstract class %@ cannot be instantiated directly!",
[isa class]];
}
if ((self = [super initWithString: aURLString]) != nil) {
ASSIGN(_type, aType);
}
return self;
}
-(NSString*) relationType
{
#ifdef GNUSTEP
[self subclassResponsibility: _cmd];
#endif
return nil;
}
-(NSString*) fileType
{
return [[_type retain] autorelease];
}
@end
@implementation RSSAlternativeLink
+(id) alternativeLinkWithString: (NSString*) aURLString
{
return [self alternativeLinkWithString: aURLString
andType: nil];
}
+(id) alternativeLinkWithString: (NSString*) aURLString
andType: (NSString*) aType
{
return AUTORELEASE([[self alloc] initWithString: aURLString
andType: aType]);
}
-(NSString*) relationType
{
return @"alternate";
}
@end
@implementation RSSEnclosureLink
+(id) enclosureLinkWithString: (NSString*) aURLString
{
return [self enclosureLinkWithString: aURLString
andType: nil];
}
+(id) enclosureLinkWithString: (NSString*) aURLString
andType: (NSString*) aType;
{
return AUTORELEASE([[self alloc] initWithString: aURLString
andType: aType]);
}
-(NSString*) relationType
{
return @"enclosure";
}
@end
@implementation RSSRelatedLink
+(id) relatedLinkWithString: (NSString*) aURLString
{
return [self relatedLinkWithString: aURLString
andType: nil];
}
+(id) relatedLinkWithString: (NSString*) aURLString
andType: (NSString*) aType
{
return AUTORELEASE([[self alloc] initWithString: aURLString
andType: aType]);
}
-(NSString*) relationType
{
return @"related";
}
@end
@implementation RSSViaLink
+(id) viaLinkWithString: (NSString*) aURLString
{
return [self viaLinkWithString: aURLString
andType: nil];
}
+(id) viaLinkWithString: (NSString*) aURLString
andType: (NSString*) aType
{
return AUTORELEASE([[self alloc] initWithString: aURLString
andType: aType]);
}
-(NSString*) relationType
{
return @"via";
}
@end
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