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
|
/* -*- 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 .
*/
#include <RDFaExportHelper.hxx>
#include <xmloff/xmlnamespace.hxx>
#include <xmloff/xmlexp.hxx>
#include <xmloff/xmltoken.hxx>
#include <comphelper/stl_types.hxx>
#include <comphelper/processfactory.hxx>
#include <com/sun/star/frame/XModel.hpp>
#include <com/sun/star/uri/XUriReference.hpp>
#include <com/sun/star/uri/UriReferenceFactory.hpp>
#include <com/sun/star/rdf/Statement.hpp>
#include <com/sun/star/rdf/XLiteral.hpp>
#include <com/sun/star/rdf/XRepositorySupplier.hpp>
#include <com/sun/star/rdf/XDocumentRepository.hpp>
#include <rtl/ustrbuf.hxx>
#include <tools/diagnose_ex.h>
#include <algorithm>
using namespace ::com::sun::star;
namespace xmloff {
static OUString
makeCURIE(SvXMLExport * i_pExport,
uno::Reference<rdf::XURI> const & i_xURI)
{
OSL_ENSURE(i_xURI.is(), "makeCURIE: null URI");
if (!i_xURI.is()) throw uno::RuntimeException();
const OUString Namespace( i_xURI->getNamespace() );
OSL_ENSURE(!Namespace.isEmpty(), "makeCURIE: no namespace");
if (Namespace.isEmpty()) throw uno::RuntimeException();
// N.B.: empty LocalName is valid!
return i_pExport->EnsureNamespace(Namespace) + ":" + i_xURI->getLocalName();
}
// #i112473# SvXMLExport::GetRelativeReference() not right for RDF on SaveAs
// because the URIs in the repository are not rewritten on SaveAs, the
// URI of the loaded document has to be used, not the URI of the target doc.
static OUString
getRelativeReference(SvXMLExport const& rExport, OUString const& rURI)
{
uno::Reference< rdf::XURI > const xModelURI(
rExport.GetModel(), uno::UNO_QUERY_THROW );
OUString const baseURI( xModelURI->getStringValue() );
uno::Reference<uno::XComponentContext> xContext( comphelper::getProcessComponentContext() );
uno::Reference<uri::XUriReferenceFactory> const xUriFactory =
uri::UriReferenceFactory::create( xContext );
uno::Reference< uri::XUriReference > const xBaseURI(
xUriFactory->parse(baseURI), uno::UNO_SET_THROW );
uno::Reference< uri::XUriReference > const xAbsoluteURI(
xUriFactory->parse(rURI), uno::UNO_SET_THROW );
uno::Reference< uri::XUriReference > const xRelativeURI(
xUriFactory->makeRelative(xBaseURI, xAbsoluteURI, true, true, false),
uno::UNO_SET_THROW );
OUString const relativeURI(xRelativeURI->getUriReference());
return relativeURI;
}
RDFaExportHelper::RDFaExportHelper(SvXMLExport & i_rExport)
: m_rExport(i_rExport), m_Counter(0)
{
const uno::Reference<rdf::XRepositorySupplier> xRS( m_rExport.GetModel(),
uno::UNO_QUERY_THROW);
m_xRepository.set(xRS->getRDFRepository(), uno::UNO_QUERY_THROW);
}
OUString
RDFaExportHelper::LookupBlankNode(
uno::Reference<rdf::XBlankNode> const & i_xBlankNode)
{
OSL_ENSURE(i_xBlankNode.is(), "null BlankNode?");
if (!i_xBlankNode.is()) throw uno::RuntimeException();
OUString & rEntry(
m_BlankNodeMap[ i_xBlankNode->getStringValue() ] );
if (rEntry.isEmpty())
{
rEntry = "_:b" + OUString::number(++m_Counter);
}
return rEntry;
}
void
RDFaExportHelper::AddRDFa(
uno::Reference<rdf::XMetadatable> const & i_xMetadatable)
{
try
{
beans::Pair< uno::Sequence<rdf::Statement>, sal_Bool > const
RDFaResult( m_xRepository->getStatementRDFa(i_xMetadatable) );
uno::Sequence<rdf::Statement> const & rStatements( RDFaResult.First );
if (!rStatements.hasElements())
{
return; // no RDFa
}
// all stmts have the same subject, so we only handle first one
const uno::Reference<rdf::XURI> xSubjectURI(rStatements[0].Subject,
uno::UNO_QUERY);
const uno::Reference<rdf::XBlankNode> xSubjectBNode(
rStatements[0].Subject, uno::UNO_QUERY);
if (!xSubjectURI.is() && !xSubjectBNode.is())
{
throw uno::RuntimeException();
}
const OUString about( xSubjectURI.is()
? getRelativeReference(m_rExport, xSubjectURI->getStringValue())
: "[" + LookupBlankNode(xSubjectBNode) + "]"
);
const uno::Reference<rdf::XLiteral> xContent(
rStatements[0].Object, uno::UNO_QUERY_THROW );
const uno::Reference<rdf::XURI> xDatatype(xContent->getDatatype());
if (xDatatype.is())
{
const OUString datatype(
makeCURIE(&m_rExport, xDatatype) );
m_rExport.AddAttribute(XML_NAMESPACE_XHTML,
token::XML_DATATYPE, datatype);
}
if (RDFaResult.Second) // there is xhtml:content
{
m_rExport.AddAttribute(XML_NAMESPACE_XHTML, token::XML_CONTENT,
xContent->getValue());
}
::std::vector<OUString> curies;
for (rdf::Statement const& rStatement : rStatements)
{
curies.push_back(makeCURIE(&m_rExport, rStatement.Predicate));
}
OUStringBuffer property;
::comphelper::intersperse(curies.begin(), curies.end(),
::comphelper::OUStringBufferAppender(property),
OUString(" "));
m_rExport.AddAttribute(XML_NAMESPACE_XHTML, token::XML_PROPERTY,
property.makeStringAndClear());
m_rExport.AddAttribute(XML_NAMESPACE_XHTML, token::XML_ABOUT, about);
}
catch (uno::Exception &)
{
TOOLS_WARN_EXCEPTION("xmloff.core", "");
}
}
} // namespace xmloff
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
