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
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef Patternist_AccelTreeResourceLoader_H
#define Patternist_AccelTreeResourceLoader_H
#include <QtCore/QEventLoop>
#include <QtNetwork/QNetworkReply>
#include "qabstractxmlreceiver.h"
#include "qacceltree_p.h"
#include "qacceltreebuilder_p.h"
#include "qdeviceresourceloader_p.h"
#include "qnamepool_p.h"
#include "qnetworkaccessdelegator_p.h"
#include "qreportcontext_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QIODevice;
namespace QPatternist
{
/**
* @short An helper class which enables QNetworkAccessManager
* to be used in a blocking manner.
*
* @see AccelTreeResourceLoader::load()
* @author Frans Englich <fenglich@trolltech.com>
*/
class NetworkLoop : public QEventLoop
{
Q_OBJECT
public:
NetworkLoop() : m_hasReceivedError(false)
{
}
public Q_SLOTS:
void error(QNetworkReply::NetworkError code)
{
Q_UNUSED(code);
m_hasReceivedError = true;
exit(1);
}
void finished()
{
if(m_hasReceivedError)
exit(1);
else
exit(0);
}
private:
bool m_hasReceivedError;
};
/**
* @short Handles requests for documents, and instantiates
* them as AccelTree instances.
*
* @author Frans Englich <fenglich@trolltech.com>
*/
class Q_AUTOTEST_EXPORT AccelTreeResourceLoader : public DeviceResourceLoader
{
public:
/**
* Describes the behaviour of the resource loader in case of an
* error.
*/
enum ErrorHandling
{
FailOnError, ///< The resource loader will report the error via the report context.
ContinueOnError ///< The resource loader will report no error and return an empty QNetworkReply.
};
/**
* AccelTreeResourceLoader does not own @p context.
*/
AccelTreeResourceLoader(const NamePool::Ptr &np,
const NetworkAccessDelegator::Ptr &networkDelegator, AccelTreeBuilder<true>::Features = AccelTreeBuilder<true>::NoneFeature);
virtual Item openDocument(const QUrl &uri,
const ReportContext::Ptr &context);
virtual Item openDocument(QIODevice *source, const QUrl &documentUri,
const ReportContext::Ptr &context);
virtual SequenceType::Ptr announceDocument(const QUrl &uri, const Usage usageHint);
virtual bool isDocumentAvailable(const QUrl &uri);
virtual bool isUnparsedTextAvailable(const QUrl &uri,
const QString &encoding);
virtual Item openUnparsedText(const QUrl &uri,
const QString &encoding,
const ReportContext::Ptr &context,
const SourceLocationReflection *const where);
/**
* @short Helper function that do NetworkAccessDelegator::get(), but
* does it blocked.
*
* The returned QNetworkReply has emitted QNetworkReply::finished().
*
* The caller owns the return QIODevice instance.
*
* @p context may be @c null or valid. If @c null, no error reporting
* is done and @c null is returned.
*
* @see NetworkAccessDelegator
*/
static QNetworkReply *load(const QUrl &uri,
QNetworkAccessManager *const networkManager,
const ReportContext::Ptr &context, ErrorHandling handling = FailOnError);
/**
* @overload
*/
static QNetworkReply *load(const QUrl &uri,
const NetworkAccessDelegator::Ptr &networkDelegator,
const ReportContext::Ptr &context, ErrorHandling handling = FailOnError);
/**
* @short Returns the URIs this AccelTreeResourceLoader has loaded
* which are for devices through variable bindings.
*/
virtual QSet<QUrl> deviceURIs() const;
virtual void clear(const QUrl &uri);
private:
static bool streamToReceiver(QIODevice *const dev,
AccelTreeBuilder<true> *const receiver,
const NamePool::Ptr &np,
const ReportContext::Ptr &context,
const QUrl &uri);
bool retrieveDocument(const QUrl &uri,
const ReportContext::Ptr &context);
bool retrieveDocument(QIODevice *source, const QUrl &documentUri,
const ReportContext::Ptr &context);
/**
* If @p context is @c null, no error reporting should be done.
*/
bool retrieveUnparsedText(const QUrl &uri,
const QString &encoding,
const ReportContext::Ptr &context,
const SourceLocationReflection *const where);
QHash<QUrl, AccelTree::Ptr> m_loadedDocuments;
const NamePool::Ptr m_namePool;
const NetworkAccessDelegator::Ptr m_networkAccessDelegator;
QHash<QPair<QUrl, QString>, QString> m_unparsedTexts;
AccelTreeBuilder<true>::Features m_features;
};
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
|
