|
1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
|
2 // All rights reserved. |
|
3 // This component and the accompanying materials are made available |
|
4 // under the terms of "Eclipse Public License v1.0" |
|
5 // which accompanies this distribution, and is available |
|
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
7 // |
|
8 // Initial Contributors: |
|
9 // Nokia Corporation - initial contribution. |
|
10 // |
|
11 // Contributors: |
|
12 // |
|
13 // Description: |
|
14 // XML Deserializer implementation |
|
15 // |
|
16 |
|
17 #include <xml/dom/xmlengdeserializer.h> |
|
18 #include <xml/dom/xmlengerrors.h> |
|
19 #include "xmlengdeserializerxop.h" |
|
20 #include "xmlengdeserializergzip.h" |
|
21 #include <xml/utils/xmlengxestd.h> |
|
22 #include <xml/utils/xmlengxestrings.h> |
|
23 #include <xml/dom/xmlengdatacontainer.h> |
|
24 #include <xml/dom/xmlengparsingoptions.h> |
|
25 #include <xml/dom/xmlengserializeerrors.h> |
|
26 |
|
27 #include <xml/parser.h> |
|
28 #include <xml/parserfeature.h> |
|
29 #include <xml/matchdata.h> |
|
30 #include <f32file.h> |
|
31 |
|
32 _LIT8(KXmlMimeType, "text/xml"); |
|
33 _LIT8(KParserType,"libxml2"); |
|
34 |
|
35 using namespace Xml; |
|
36 |
|
37 // -------------------------------------------------------------------------------------- |
|
38 // Creates an instance of CXmlEngDeserializer |
|
39 // -------------------------------------------------------------------------------------- |
|
40 // |
|
41 EXPORT_C CXmlEngDeserializer* CXmlEngDeserializer::NewL( MContentHandler& aContentHandler, TXmlEngDeserializerType aType ) |
|
42 { |
|
43 switch(aType) |
|
44 { |
|
45 case EDeserializerXOP: |
|
46 { |
|
47 return CXmlEngDeserializerXOP::NewL( aContentHandler, EFalse ); |
|
48 } |
|
49 case EDeserializerXOPInfoset: |
|
50 { |
|
51 return CXmlEngDeserializerXOP::NewL( aContentHandler, ETrue ); |
|
52 } |
|
53 case EDeserializerGZip: |
|
54 { |
|
55 return CXmlEngDeserializerGZIP::NewL( aContentHandler ); |
|
56 } |
|
57 case EDeserializerDefault: |
|
58 default: |
|
59 { |
|
60 CXmlEngDeserializer* self = new (ELeave) CXmlEngDeserializer; |
|
61 CleanupStack::PushL(self); |
|
62 self->ConstructL( aContentHandler ); |
|
63 CleanupStack::Pop(self); |
|
64 return self; |
|
65 } |
|
66 } |
|
67 } |
|
68 |
|
69 |
|
70 // -------------------------------------------------------------------------------------- |
|
71 // Set input type as file |
|
72 // -------------------------------------------------------------------------------------- |
|
73 // |
|
74 EXPORT_C void CXmlEngDeserializer::SetInputFileL(const TDesC& aFileName) |
|
75 { |
|
76 if(iInputFileName) |
|
77 { |
|
78 delete iInputFileName; |
|
79 iInputFileName=NULL; |
|
80 } |
|
81 iInputFileName = aFileName.AllocL(); |
|
82 iSerializationOutput = EDeserializeFromFile; |
|
83 } |
|
84 |
|
85 // -------------------------------------------------------------------------------------- |
|
86 // Set input type as buffer |
|
87 // -------------------------------------------------------------------------------------- |
|
88 // |
|
89 EXPORT_C void CXmlEngDeserializer::SetInputBuffer(const TDesC8& aBuffer) |
|
90 { |
|
91 iBuffer.Set(aBuffer); |
|
92 iSerializationOutput = EDeserializeFromBuffer; |
|
93 } |
|
94 |
|
95 // -------------------------------------------------------------------------------------- |
|
96 // Set content handler |
|
97 // -------------------------------------------------------------------------------------- |
|
98 // |
|
99 EXPORT_C void CXmlEngDeserializer::SetContentHandlerL(MContentHandler& aContentHandler) |
|
100 { |
|
101 TInt i; |
|
102 delete iParser; |
|
103 iParser = NULL; |
|
104 ConstructL( aContentHandler ); |
|
105 for(i=1; i<=ELastFeature; i*=2) |
|
106 { |
|
107 if(i & iFeatures) |
|
108 { |
|
109 iParser->EnableFeature(i); |
|
110 } |
|
111 } |
|
112 } |
|
113 |
|
114 // -------------------------------------------------------------------------------------- |
|
115 // Set parsing options |
|
116 // May be used to alter deserializer output |
|
117 // -------------------------------------------------------------------------------------- |
|
118 // |
|
119 EXPORT_C void CXmlEngDeserializer::SetParsingOptions(TXmlEngParsingOptions& aOptions) |
|
120 { |
|
121 iParsingOptions = aOptions; |
|
122 } |
|
123 |
|
124 // -------------------------------------------------------------------------------------- |
|
125 // Set parsing options |
|
126 // May be used to alter deserializer output |
|
127 // -------------------------------------------------------------------------------------- |
|
128 // |
|
129 EXPORT_C const TXmlEngParsingOptions& CXmlEngDeserializer::ParsingOptions() |
|
130 { |
|
131 return iParsingOptions; |
|
132 } |
|
133 |
|
134 // -------------------------------------------------------------------------------------- |
|
135 // Set external data array |
|
136 // -------------------------------------------------------------------------------------- |
|
137 // |
|
138 EXPORT_C void CXmlEngDeserializer::UseExternalDataL(RArray<TXmlEngDataContainer>& aList) |
|
139 { |
|
140 iDataList = &aList; |
|
141 } |
|
142 |
|
143 // -------------------------------------------------------------------------------------- |
|
144 // Fetches external data registered in this deserializer |
|
145 // -------------------------------------------------------------------------------------- |
|
146 // |
|
147 EXPORT_C RArray<TXmlEngDataContainer>* CXmlEngDeserializer::ExternalData() |
|
148 { |
|
149 return iDataList; |
|
150 } |
|
151 |
|
152 // -------------------------------------------------------------------------------------- |
|
153 // Enables CParser feature |
|
154 // -------------------------------------------------------------------------------------- |
|
155 // |
|
156 EXPORT_C TInt CXmlEngDeserializer::EnableFeature(TInt aParserFeature) |
|
157 { |
|
158 TInt res = iParser->EnableFeature(aParserFeature); |
|
159 if(!res) |
|
160 { |
|
161 iFeatures |= aParserFeature; |
|
162 } |
|
163 return res; |
|
164 } |
|
165 |
|
166 // -------------------------------------------------------------------------------------- |
|
167 // Disables CParser feature |
|
168 // -------------------------------------------------------------------------------------- |
|
169 // |
|
170 EXPORT_C TInt CXmlEngDeserializer::DisableFeature(TInt aParserFeature) |
|
171 { |
|
172 TInt res = iParser->DisableFeature(aParserFeature); |
|
173 if(!res) |
|
174 { |
|
175 iFeatures &= ~aParserFeature; |
|
176 } |
|
177 return res; |
|
178 } |
|
179 |
|
180 // -------------------------------------------------------------------------------------- |
|
181 // Checks if a feature is enabled |
|
182 // -------------------------------------------------------------------------------------- |
|
183 // |
|
184 EXPORT_C TBool CXmlEngDeserializer::IsFeatureEnabled(TInt aParserFeature) const |
|
185 { |
|
186 return iParser->IsFeatureEnabled(aParserFeature); |
|
187 } |
|
188 |
|
189 // -------------------------------------------------------------------------------------- |
|
190 // Serializes TXmlEngNode to file |
|
191 // -------------------------------------------------------------------------------------- |
|
192 // |
|
193 EXPORT_C void CXmlEngDeserializer::DeserializeL() |
|
194 { |
|
195 switch(iSerializationOutput) |
|
196 { |
|
197 case EDeserializeFromFile: |
|
198 { |
|
199 if(!iInputFileName) |
|
200 { |
|
201 User::Leave(KXmlEngErrNoParameters); |
|
202 } |
|
203 RFs fs; |
|
204 CleanupClosePushL(fs); |
|
205 User::LeaveIfError(fs.Connect()); |
|
206 DeserializeL( fs, iInputFileName->Des() ); |
|
207 CleanupStack::PopAndDestroy(&fs); |
|
208 break; |
|
209 } |
|
210 case EDeserializeFromBuffer: |
|
211 { |
|
212 if(iBuffer.Length() == 0) |
|
213 { |
|
214 User::Leave(KXmlEngErrNoParameters); |
|
215 } |
|
216 DeserializeL(iBuffer); |
|
217 break; |
|
218 } |
|
219 case EDeserializeFromStream: |
|
220 { |
|
221 // Currently this feature is not supported. Implement when need arises or remove. |
|
222 User::Leave(KErrNotSupported); |
|
223 } |
|
224 default: |
|
225 { |
|
226 User::Leave(KErrNotSupported); |
|
227 break; |
|
228 } |
|
229 } |
|
230 } |
|
231 |
|
232 // -------------------------------------------------------------------------------------- |
|
233 // Deserialize document |
|
234 // -------------------------------------------------------------------------------------- |
|
235 // |
|
236 EXPORT_C void CXmlEngDeserializer::DeserializeL( const TDesC& aFileName, |
|
237 const TXmlEngParsingOptions& /*aOptions*/) |
|
238 { |
|
239 RFs fs; |
|
240 CleanupClosePushL(fs); |
|
241 User::LeaveIfError(fs.Connect()); |
|
242 ParseL(*iParser,fs,aFileName); |
|
243 CleanupStack::PopAndDestroy(&fs); |
|
244 } |
|
245 |
|
246 // -------------------------------------------------------------------------------------- |
|
247 // Deserialize document |
|
248 // -------------------------------------------------------------------------------------- |
|
249 // |
|
250 EXPORT_C void CXmlEngDeserializer::DeserializeL( RFs& aRFs, |
|
251 const TDesC& aFileName, |
|
252 const TXmlEngParsingOptions& /*aOptions*/) |
|
253 { |
|
254 ParseL(*iParser,aRFs,aFileName); |
|
255 } |
|
256 |
|
257 // -------------------------------------------------------------------------------------- |
|
258 // Deserialize document |
|
259 // -------------------------------------------------------------------------------------- |
|
260 // |
|
261 EXPORT_C void CXmlEngDeserializer::DeserializeL( const TDesC8& aBuffer, |
|
262 const TXmlEngParsingOptions& /*aOptions*/) |
|
263 { |
|
264 ParseL(*iParser,aBuffer); |
|
265 } |
|
266 // -------------------------------------------------------------------------------------- |
|
267 // Default Constructor |
|
268 // -------------------------------------------------------------------------------------- |
|
269 // |
|
270 CXmlEngDeserializer::CXmlEngDeserializer() |
|
271 { |
|
272 iParsingOptions = TXmlEngParsingOptions(); |
|
273 } |
|
274 |
|
275 // -------------------------------------------------------------------------------------- |
|
276 // Destructor |
|
277 // -------------------------------------------------------------------------------------- |
|
278 // |
|
279 CXmlEngDeserializer::~CXmlEngDeserializer() |
|
280 { |
|
281 delete iParser; |
|
282 delete iInputFileName; |
|
283 } |
|
284 |
|
285 // -------------------------------------------------------------------------------------- |
|
286 // 2nd phase constructor |
|
287 // -------------------------------------------------------------------------------------- |
|
288 // |
|
289 void CXmlEngDeserializer::ConstructL( MContentHandler& aContentHandler ) |
|
290 { |
|
291 if(iParser) |
|
292 { |
|
293 delete iParser; |
|
294 iParser = NULL; |
|
295 } |
|
296 |
|
297 CMatchData* matchData = CMatchData::NewLC(); |
|
298 matchData->SetMimeTypeL(KXmlMimeType); |
|
299 matchData->SetVariantL(KParserType); |
|
300 iParser = CParser::NewL(*matchData, aContentHandler); |
|
301 CleanupStack::PopAndDestroy(&(*matchData)); |
|
302 } |
|
303 |
|
304 |
|
305 // -------------------------------------------------------------------------------------- |
|
306 // Retrieves pointer to data container referenced by CID |
|
307 // -------------------------------------------------------------------------------------- |
|
308 // |
|
309 TXmlEngDataContainer* CXmlEngDeserializer::GetDataContainer(const TDesC8& aCid) |
|
310 { |
|
311 for(TInt i = 0; i < iDataList->Count(); i++) |
|
312 { |
|
313 if( (*iDataList)[i].Cid() == aCid ) |
|
314 { |
|
315 return &(*iDataList)[i]; |
|
316 } |
|
317 } |
|
318 return NULL; |
|
319 } |
|
320 |