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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 | |
43 | using namespace QPatternistSDK; |
44 | using namespace QPatternist; |
45 | |
46 | ExternalSourceLoader::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 | |
54 | QPatternist::SequenceType::Ptr |
55 | ExternalSourceLoader::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 | |
92 | QPatternist::Item |
93 | ExternalSourceLoader::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 | |