summaryrefslogtreecommitdiff
path: root/unoxml/source/dom/saxbuilder.cxx
blob: b62dd3f839a25b9f86cfdfaeb3c73a1047d04d63 (plain)
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
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
#ifdef _MSC_VER
#pragma warning(disable : 4701)
#endif

#include "saxbuilder.hxx"

#include <com/sun/star/xml/dom/DocumentBuilder.hpp>
#include <com/sun/star/xml/sax/SAXException.hpp>
#include <comphelper/processfactory.hxx>
#include <cppuhelper/supportsservice.hxx>

using namespace css::lang;
using namespace css::uno;
using namespace css::xml::dom;
using namespace css::xml::sax;

namespace DOM
{
    Reference< XInterface > CSAXDocumentBuilder::_getInstance(const Reference< XMultiServiceFactory >& rSMgr)
    {
        return static_cast< XSAXDocumentBuilder* >(new CSAXDocumentBuilder(rSMgr));
    }

    const char* CSAXDocumentBuilder::aImplementationName = "com.sun.star.comp.xml.dom.SAXDocumentBuilder";
    const char* CSAXDocumentBuilder::aSupportedServiceNames[] = {
        "com.sun.star.xml.dom.SAXDocumentBuilder",
        nullptr
    };

    CSAXDocumentBuilder::CSAXDocumentBuilder(const Reference< XMultiServiceFactory >& mgr)
        : m_aServiceManager(mgr)
        , m_aState( SAXDocumentBuilderState_READY)
    {}

    OUString CSAXDocumentBuilder::_getImplementationName()
    {
        return OUString::createFromAscii(aImplementationName);
    }
    Sequence<OUString> CSAXDocumentBuilder::_getSupportedServiceNames()
    {
        Sequence<OUString> aSequence;
        for (int i=0; aSupportedServiceNames[i]!=nullptr; i++) {
            aSequence.realloc(i+1);
            aSequence[i] = OUString::createFromAscii(aSupportedServiceNames[i]);
        }
        return aSequence;
    }

    Sequence< OUString > SAL_CALL CSAXDocumentBuilder::getSupportedServiceNames()
    {
        return CSAXDocumentBuilder::_getSupportedServiceNames();
    }

    OUString SAL_CALL CSAXDocumentBuilder::getImplementationName()
    {
        return CSAXDocumentBuilder::_getImplementationName();
    }

    sal_Bool SAL_CALL CSAXDocumentBuilder::supportsService(const OUString& aServiceName)
    {
        return cppu::supportsService(this, aServiceName);
    }

    SAXDocumentBuilderState SAL_CALL CSAXDocumentBuilder::getState()
    {
        ::osl::MutexGuard g(m_Mutex);

        return m_aState;
    }

    void SAL_CALL CSAXDocumentBuilder::reset()
    {
        ::osl::MutexGuard g(m_Mutex);

        m_aDocument.clear();
        m_aFragment.clear();
        while (!m_aNodeStack.empty()) m_aNodeStack.pop();
        while (!m_aNSStack.empty()) m_aNSStack.pop();
        m_aState = SAXDocumentBuilderState_READY;
    }

    Reference< XDocument > SAL_CALL CSAXDocumentBuilder::getDocument()
    {
        ::osl::MutexGuard g(m_Mutex);

        if (m_aState != SAXDocumentBuilderState_DOCUMENT_FINISHED)
            throw RuntimeException();

        return m_aDocument;
    }

    Reference< XDocumentFragment > SAL_CALL CSAXDocumentBuilder::getDocumentFragment()
    {
        ::osl::MutexGuard g(m_Mutex);

        if (m_aState != SAXDocumentBuilderState_FRAGMENT_FINISHED)
            throw RuntimeException();
        return m_aFragment;
    }

    void SAL_CALL CSAXDocumentBuilder::startDocumentFragment(const Reference< XDocument >& ownerDoc)
    {
        ::osl::MutexGuard g(m_Mutex);

        // start a new document fragment and push it onto the stack
        // we have to be in a clean state to do this
        if (m_aState != SAXDocumentBuilderState_READY)
            throw RuntimeException();

        m_aDocument = ownerDoc;
        Reference< XDocumentFragment > aFragment = m_aDocument->createDocumentFragment();
        m_aNodeStack.push(aFragment);
        m_aFragment = aFragment;
        m_aState = SAXDocumentBuilderState_BUILDING_FRAGMENT;
    }

    void SAL_CALL CSAXDocumentBuilder::endDocumentFragment()
    {
        ::osl::MutexGuard g(m_Mutex);

        // there should only be the document left on the node stack
        if (m_aState != SAXDocumentBuilderState_BUILDING_FRAGMENT)
            throw RuntimeException();

        Reference< XNode > aNode = m_aNodeStack.top();
        if ( aNode->getNodeType() != NodeType_DOCUMENT_FRAGMENT_NODE)
            throw RuntimeException();
        m_aNodeStack.pop();
        m_aState = SAXDocumentBuilderState_FRAGMENT_FINISHED;
    }

    // document handler

    void SAL_CALL  CSAXDocumentBuilder::startDocument()
    {
        ::osl::MutexGuard g(m_Mutex);

        // start a new document and push it onto the stack
        // we have to be in a clean state to do this
        if (m_aState != SAXDocumentBuilderState_READY)
            throw SAXException();

        Reference< XDocumentBuilder > aBuilder(DocumentBuilder::create(comphelper::getComponentContext(m_aServiceManager)));
        Reference< XDocument > aDocument = aBuilder->newDocument();
        m_aNodeStack.push(aDocument);
        m_aDocument = aDocument;
        m_aState = SAXDocumentBuilderState_BUILDING_DOCUMENT;
    }

    void SAL_CALL CSAXDocumentBuilder::endDocument()
    {
        ::osl::MutexGuard g(m_Mutex);

        // there should only be the document left on the node stack
        if (m_aState != SAXDocumentBuilderState_BUILDING_DOCUMENT)
            throw SAXException();

        Reference< XNode > aNode = m_aNodeStack.top();
        if ( aNode->getNodeType() != NodeType_DOCUMENT_NODE)
            throw SAXException();
        m_aNodeStack.pop();
        m_aState = SAXDocumentBuilderState_DOCUMENT_FINISHED;
    }

    void SAL_CALL CSAXDocumentBuilder::startElement(const OUString& aName, const Reference< XAttributeList>& attribs)
    {
        ::osl::MutexGuard g(m_Mutex);

        if ( m_aState != SAXDocumentBuilderState_BUILDING_DOCUMENT &&
             m_aState != SAXDocumentBuilderState_BUILDING_FRAGMENT)
        {
            throw SAXException();
        }

        // start with mappings in effect for last level
        NSMap aNSMap;
        if (!m_aNSStack.empty())
            aNSMap = NSMap(m_aNSStack.top());

        // handle xmlns: attributes and add to mappings
        OUString attr_qname;
        OUString attr_value;
        OUString newprefix;
        AttrMap aAttrMap;
        sal_Int32 idx=-1;
        sal_Int16 nAttributes = attribs->getLength();
        for (sal_Int16 i=0; i<nAttributes; i++)
        {
            attr_qname = attribs->getNameByIndex(i);
            attr_value = attribs->getValueByIndex(i);
            // new prefix mapping
            if (attr_qname.startsWith("xmlns:"))
            {
                newprefix = attr_qname.copy(attr_qname.indexOf(':')+1);
                aNSMap.emplace(newprefix, attr_value);
            }
            else if ( attr_qname == "xmlns" )
            {
                // new default prefix
                aNSMap.emplace(OUString(), attr_value);
            }
            else
            {
                aAttrMap.emplace(attr_qname, attr_value);
            }
        }

        // does the element have a prefix?
        OUString aPrefix;
        OUString aURI;
        Reference< XElement > aElement;
        idx = aName.indexOf(':');
        if (idx != -1)
        {
            aPrefix = aName.copy(0, idx);
        }
        else
            aPrefix.clear();

        NSMap::const_iterator result = aNSMap.find(aPrefix);
        if ( result != aNSMap.end())
        {
            // found a URI for prefix
            // qualified name
            aElement = m_aDocument->createElementNS( result->second, aName);
        }
        else
        {
            // no URI for prefix
            aElement = m_aDocument->createElement(aName);
        }
        aElement.set( m_aNodeStack.top()->appendChild(aElement), UNO_QUERY);
        m_aNodeStack.push(aElement);

        // set non xmlns attributes
        aPrefix.clear();
        aURI.clear();
        AttrMap::const_iterator a = aAttrMap.begin();
        while (a != aAttrMap.end())
        {
            attr_qname = a->first;
            attr_value = a->second;
            idx = attr_qname.indexOf(':');
            if (idx != -1)
                aPrefix = attr_qname.copy(0, idx);
            else
                aPrefix.clear();

            result = aNSMap.find(aPrefix);
            if (result != aNSMap.end())
            {
                // set attribute with namespace
                aElement->setAttributeNS(result->second, attr_qname, attr_value);
            }
            else
            {
                // set attribute without namespace
                aElement->setAttribute(attr_qname, attr_value);
            }
            ++a;
        }
        m_aNSStack.push(aNSMap);
    }

    void SAL_CALL CSAXDocumentBuilder::endElement(const OUString& aName)
    {
        ::osl::MutexGuard g(m_Mutex);

        // pop the current element from the stack
        if ( m_aState != SAXDocumentBuilderState_BUILDING_DOCUMENT &&
             m_aState != SAXDocumentBuilderState_BUILDING_FRAGMENT)
            throw SAXException();

        Reference< XNode > aNode(m_aNodeStack.top());
        if (aNode->getNodeType() != NodeType_ELEMENT_NODE)
            throw SAXException();

        Reference< XElement > aElement(aNode, UNO_QUERY);
        OUString aRefName;
        OUString aPrefix = aElement->getPrefix();
        if (!aPrefix.isEmpty())
            aRefName = aPrefix + ":" + aElement->getTagName();
        else
            aRefName = aElement->getTagName();
        if (aRefName != aName) // consistency check
            throw SAXException();

        // pop it
        m_aNodeStack.pop();
        m_aNSStack.pop();
    }

    void SAL_CALL CSAXDocumentBuilder::characters(const OUString& aChars)
    {
        ::osl::MutexGuard g(m_Mutex);

        //  append text node to the current top element
         if (m_aState != SAXDocumentBuilderState_BUILDING_DOCUMENT &&
             m_aState != SAXDocumentBuilderState_BUILDING_FRAGMENT)
            throw SAXException();

         Reference< XText > aText = m_aDocument->createTextNode(aChars);
         m_aNodeStack.top()->appendChild(aText);
    }

    void SAL_CALL CSAXDocumentBuilder::ignorableWhitespace(const OUString& )
    {
        ::osl::MutexGuard g(m_Mutex);

        //  ignore ignorable whitespace
        if ( m_aState != SAXDocumentBuilderState_BUILDING_DOCUMENT &&
             m_aState != SAXDocumentBuilderState_BUILDING_FRAGMENT)
            throw SAXException();
    }

    void SAL_CALL CSAXDocumentBuilder::processingInstruction(const OUString& aTarget, const OUString& aData)
    {
        ::osl::MutexGuard g(m_Mutex);

        //  append PI node to the current top
        if ( m_aState != SAXDocumentBuilderState_BUILDING_DOCUMENT &&
             m_aState != SAXDocumentBuilderState_BUILDING_FRAGMENT)
            throw SAXException();

        Reference< XProcessingInstruction > aInstruction = m_aDocument->createProcessingInstruction(
                aTarget, aData);
        m_aNodeStack.top()->appendChild(aInstruction);
    }

    void SAL_CALL CSAXDocumentBuilder::setDocumentLocator(const Reference< XLocator >& aLocator)
    {
        ::osl::MutexGuard g(m_Mutex);

        // set the document locator...
        m_aLocator = aLocator;
    }
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */