1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
*************************************************************************/
#import "OOoMetaDataParser.h"
static NSSet *singleValueXMLElements;
static NSSet *multiValueXMLElements;
static NSDictionary *metaXML2MDIKeys;
@implementation OOoMetaDataParser
+ (void)initialize
{
static BOOL isInitialized = NO;
if (isInitialized == NO) {
//set up the meta elements with only one value
NSMutableSet *temp = [NSMutableSet new];
[temp addObject:@"dc:title"];
[temp addObject:@"dc:description"];
[temp addObject:@"meta:user-defined"];
singleValueXMLElements = [[NSSet setWithSet:temp] retain];
//set up the meta elements that can have more than one value
[temp removeAllObjects];
[temp addObject:@"dc:subject"];
[temp addObject:@"meta:keyword"];
[temp addObject:@"meta:initial-creator"];
[temp addObject:@"dc:creator"];
multiValueXMLElements = [[NSSet setWithSet:temp] retain];
[temp release];
//set up the map to store the values with the correct MDI keys
NSMutableDictionary *tempDict = [NSMutableDictionary new];
[tempDict setObject:(NSString*)kMDItemTitle forKey:@"dc:title"];
[tempDict setObject:(NSString*)kMDItemDescription forKey:@"dc:description"];
[tempDict setObject:(NSString*)kMDItemKeywords forKey:@"dc:subject"];
[tempDict setObject:(NSString*)kMDItemAuthors forKey:@"meta:initial-creator"];
[tempDict setObject:(NSString*)kMDItemAuthors forKey:@"dc:creator"];
[tempDict setObject:(NSString*)kMDItemKeywords forKey:@"meta:keyword"];
[tempDict setObject:@"org_openoffice_opendocument_custominfo1" forKey:@"Info 1"];
[tempDict setObject:@"org_openoffice_opendocument_custominfo2" forKey:@"Info 2"];
[tempDict setObject:@"org_openoffice_opendocument_custominfo3" forKey:@"Info 3"];
[tempDict setObject:@"org_openoffice_opendocument_custominfo4" forKey:@"Info 4"];
metaXML2MDIKeys = [[NSDictionary dictionaryWithDictionary:tempDict] retain];
[tempDict release];
isInitialized = YES;
}
}
- (id)init
{
if ((self = [super init]) != nil) {
shouldReadCharacters = NO;
// currentElement = nil;
textCurrentElement = nil;
return self;
}
return nil;
}
- (void)parseXML:(NSData*)data intoDictionary:(NSMutableDictionary*)dict
{
metaValues = dict;
//NSLog(@"data: %@ %d", data, [data length]);
//init parser settings
shouldReadCharacters = NO;
NSXMLParser *parser = [[NSXMLParser alloc] initWithData:data];
[parser setDelegate:self];
[parser setShouldResolveExternalEntities:NO];
[parser parse];
[parser release];
//NSLog(@"finished parsing meta");
}
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict
{
// NSLog(@"<%@>", elementName);
if ([singleValueXMLElements containsObject:elementName] == YES) {
shouldReadCharacters = YES;
} else if ([multiValueXMLElements containsObject:elementName] == YES) {
shouldReadCharacters = YES;
} else {
//we are not interested in this element
shouldReadCharacters = NO;
return;
}
if (shouldReadCharacters == YES) {
textCurrentElement = [NSMutableString new];
isCustom = [elementName isEqualToString:@"meta:user-defined"];
if (isCustom == YES) {
customAttribute = [[attributeDict objectForKey:@"meta:name"] retain];
//NSLog(customAttribute);
}
}
//NSLog(@"start element %@", elementName);
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
// NSLog(@"</%@>", elementName);
if (shouldReadCharacters == YES) {
NSString *mdiName = nil;
if (isCustom == YES) {
mdiName = (NSString*)[metaXML2MDIKeys objectForKey:customAttribute];
} else {
mdiName = (NSString*)[metaXML2MDIKeys objectForKey:elementName];
}
//NSLog(@"mdiName: %@", mdiName);
if (mdiName == nil) {
return;
}
if ([singleValueXMLElements containsObject:elementName] == YES) {
[metaValues setObject:textCurrentElement forKey:mdiName];
} else {
// must be multi-value
NSMutableArray *arr = [metaValues objectForKey:mdiName];
if (arr == nil) {
// we have no array yet, create it
arr = [[NSMutableArray new] autorelease];
// and store it
[metaValues setObject:arr forKey:mdiName];
}
// only store an element once, no need for duplicates
if ([arr containsObject:textCurrentElement] == NO) {
[arr addObject:textCurrentElement];
}
}
// cleanup part 1
[textCurrentElement release];
if (customAttribute != nil) {
[customAttribute release];
}
}
//cleanup part 2
shouldReadCharacters = NO;
isCustom = NO;
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
// NSLog(@"%@", string);
if (shouldReadCharacters == NO) {
return;
}
// this delegate method might be called several times for a single element,
// so we have to collect the received data
[textCurrentElement appendString:string];
//NSLog(@"chars read: %@", string);
}
- (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError
{
//NSLog(@"parsing finished with error");
NSLog([NSString stringWithFormat:@"Error %i, Description: %@, Line: %i, Column: %i", [parseError code],
[[parser parserError] localizedDescription], [parser lineNumber],
[parser columnNumber]]);
}
@end
|
