1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the test suite of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:GPL-EXCEPT$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU
19** General Public License version 3 as published by the Free Software
20** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
21** included in the packaging of this file. Please review the following
22** information to ensure the GNU General Public License requirements will
23** be met: https://www.gnu.org/licenses/gpl-3.0.html.
24**
25** $QT_END_LICENSE$
26**
27****************************************************************************/
28
29#include <QCoreApplication>
30#include <QFile>
31#include <QtDebug>
32#include <QXmlResultItems>
33#include <QXmlNamePool>
34
35#include "Global.h"
36
37#include <private/qcommonsequencetypes_p.h>
38#include <private/qxmldebug_p.h>
39#include <private/qatomicstring_p.h>
40
41#include "ExternalSourceLoader.h"
42
43using namespace QPatternistSDK;
44using namespace QPatternist;
45
46ExternalSourceLoader::ExternalSourceLoader(const VariableMap &varMap,
47 const QPatternist::ResourceLoader::Ptr &r) : m_variableMap(varMap)
48 , m_resourceLoader(r)
49 , m_query(Global::namePoolAsPublic())
50{
51 Q_ASSERT(m_resourceLoader);
52}
53
54QPatternist::SequenceType::Ptr
55ExternalSourceLoader::announceExternalVariable(const QXmlName name,
56 const QPatternist::SequenceType::Ptr &declaredType)
57{
58 pDebug() << "ExternalSourceLoader::announceExternalVariable()";
59 Q_ASSERT(!name.isNull());
60 Q_ASSERT(declaredType);
61 Q_UNUSED(declaredType); /* Needed when bulding in release mode. */
62
63 if(name.namespaceURI() == QPatternist::StandardNamespaces::empty)
64 {
65 const VariableValue variable(m_variableMap.value(akey: Global::namePool()->stringForLocalName(code: name.localName())));
66
67 if(variable.first.isEmpty())
68 return QPatternist::SequenceType::Ptr();
69 else
70 {
71 /* If announceDocument() can't load a document for uriForVar, it will return
72 * null, which we will too, which is fine, since we can't supply a value for
73 * this variable then. */
74 if(variable.second == Document)
75 return m_resourceLoader->announceDocument(uri: variable.first, usageHint: QPatternist::ResourceLoader::WillUse);
76 else if(variable.second == URI)
77 {
78 return QPatternist::CommonSequenceTypes::ExactlyOneString;
79 }
80 else
81 {
82 /* The type is Query, and we don't pre-load
83 * them. No particular reason, just not worth it. */
84 return QPatternist::CommonSequenceTypes::ZeroOrMoreItems;
85 }
86 }
87 }
88 else
89 return QPatternist::SequenceType::Ptr();
90}
91
92QPatternist::Item
93ExternalSourceLoader::evaluateSingleton(const QXmlName name,
94 const QPatternist::DynamicContext::Ptr &context)
95{
96 Q_ASSERT(!name.isNull());
97 const VariableValue variable(m_variableMap.value(akey: Global::namePool()->stringForLocalName(code: name.localName())));
98
99 if(variable.second == Document)
100 {
101 Q_ASSERT_X(QFile::exists(variable.first.toLocalFile()), Q_FUNC_INFO,
102 qPrintable(QString::fromLatin1("The file %1 doesn't exist").arg(variable.first.toLocalFile())));
103 Q_ASSERT_X(m_resourceLoader->openDocument(variable.first, context), Q_FUNC_INFO,
104 "We're supposed to have the value. If not, an error should have been issued at query compile time.");
105
106 return m_resourceLoader->openDocument(uri: variable.first, context);
107 }
108 else if(variable.second == Query)
109 {
110 /* Well, here we open the file and execute it. */
111 m_query.setQuery(queryURI: QUrl::fromLocalFile(localfile: variable.first.toLocalFile()));
112 Q_ASSERT(m_query.isValid());
113
114 QXmlResultItems result;
115 m_query.evaluateTo(result: &result);
116
117 return QPatternist::Item::fromPublic(i: result.next());
118 }
119 else
120 {
121 Q_ASSERT(variable.second == URI);
122 return QPatternist::AtomicString::fromValue(value: variable.first.toString());
123 }
124}
125
126// vim: et:ts=4:sw=4:sts=4
127
128

source code of qtxmlpatterns/tests/auto/xmlpatternssdk/ExternalSourceLoader.cpp