--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/auto/xmlpatternssdk/ExternalSourceLoader.cpp	Wed Mar 31 11:06:36 2010 +0300
@@ -0,0 +1,140 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QCoreApplication>
+#include <QFile>
+#include <QtDebug>
+#include <QXmlResultItems>
+#include <QXmlNamePool>
+
+#include "Global.h"
+
+#include "qcommonsequencetypes_p.h"
+#include "qdebug_p.h"
+#include "qatomicstring_p.h"
+
+#include "ExternalSourceLoader.h"
+
+using namespace QPatternistSDK;
+using namespace QPatternist;
+
+ExternalSourceLoader::ExternalSourceLoader(const VariableMap &varMap,
+                                           const QPatternist::ResourceLoader::Ptr &r) : m_variableMap(varMap)
+                                                                                      , m_resourceLoader(r)
+                                                                                      , m_query(Global::namePoolAsPublic())
+{
+    Q_ASSERT(m_resourceLoader);
+}
+
+QPatternist::SequenceType::Ptr
+ExternalSourceLoader::announceExternalVariable(const QXmlName name,
+                                               const QPatternist::SequenceType::Ptr &declaredType)
+{
+    pDebug() << "ExternalSourceLoader::announceExternalVariable()";
+    Q_ASSERT(!name.isNull());
+    Q_ASSERT(declaredType);
+    Q_UNUSED(declaredType); /* Needed when bulding in release mode. */
+
+    if(name.namespaceURI() == QPatternist::StandardNamespaces::empty)
+    {
+        const VariableValue variable(m_variableMap.value(Global::namePool()->stringForLocalName(name.localName())));
+
+        if(variable.first.isEmpty())
+            return QPatternist::SequenceType::Ptr();
+        else
+        {
+            /* If announceDocument() can't load a document for uriForVar, it will return
+             * null, which we will too, which is fine, since we can't supply a value for
+             * this variable then. */
+            if(variable.second == Document)
+                return m_resourceLoader->announceDocument(variable.first, QPatternist::ResourceLoader::WillUse);
+            else if(variable.second == URI)
+            {
+                return QPatternist::CommonSequenceTypes::ExactlyOneString;
+            }
+            else
+            {
+                /* The type is Query, and we don't pre-load
+                 * them. No particular reason, just not worth it. */
+                return QPatternist::CommonSequenceTypes::ZeroOrMoreItems;
+            }
+        }
+    }
+    else
+        return QPatternist::SequenceType::Ptr();
+}
+
+QPatternist::Item
+ExternalSourceLoader::evaluateSingleton(const QXmlName name,
+                                        const QPatternist::DynamicContext::Ptr &context)
+{
+    Q_ASSERT(!name.isNull());
+    const VariableValue variable(m_variableMap.value(Global::namePool()->stringForLocalName(name.localName())));
+
+    if(variable.second == Document)
+    {
+        Q_ASSERT_X(QFile::exists(variable.first.toLocalFile()), Q_FUNC_INFO,
+                   qPrintable(QString::fromLatin1("The file %1 doesn't exist").arg(variable.first.toLocalFile())));
+        Q_ASSERT_X(m_resourceLoader->openDocument(variable.first, context), Q_FUNC_INFO,
+                   "We're supposed to have the value. If not, an error should have been issued at query compile time.");
+
+        return m_resourceLoader->openDocument(variable.first, context);
+    }
+    else if(variable.second == Query)
+    {
+        /* Well, here we open the file and execute it. */
+        m_query.setQuery(QUrl::fromLocalFile(variable.first.toLocalFile()));
+        Q_ASSERT(m_query.isValid());
+
+        QXmlResultItems result;
+        m_query.evaluateTo(&result);
+
+        return QPatternist::Item::fromPublic(result.next());
+    }
+    else
+    {
+        Q_ASSERT(variable.second == URI);
+        return QPatternist::AtomicString::fromValue(variable.first.toString());
+    }
+}
+
+// vim: et:ts=4:sw=4:sts=4
+