1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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4 | ** Contact: Qt Software Information ([email protected])
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5 | **
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6 | ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
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7 | **
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8 | ** $QT_BEGIN_LICENSE:LGPL$
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9 | ** Commercial Usage
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10 | ** Licensees holding valid Qt Commercial licenses may use this file in
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11 | ** accordance with the Qt Commercial License Agreement provided with the
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12 | ** Software or, alternatively, in accordance with the terms contained in
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13 | ** a written agreement between you and Nokia.
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14 | **
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15 | ** GNU Lesser General Public License Usage
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16 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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17 | ** General Public License version 2.1 as published by the Free Software
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18 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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19 | ** packaging of this file. Please review the following information to
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20 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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21 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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22 | **
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23 | ** In addition, as a special exception, Nokia gives you certain
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24 | ** additional rights. These rights are described in the Nokia Qt LGPL
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25 | ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
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26 | ** package.
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27 | **
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28 | ** GNU General Public License Usage
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29 | ** Alternatively, this file may be used under the terms of the GNU
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30 | ** General Public License version 3.0 as published by the Free Software
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31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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32 | ** packaging of this file. Please review the following information to
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33 | ** ensure the GNU General Public License version 3.0 requirements will be
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34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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35 | **
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36 | ** If you are unsure which license is appropriate for your use, please
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37 | ** contact the sales department at [email protected].
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38 | ** $QT_END_LICENSE$
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39 | **
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40 | ****************************************************************************/
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41 |
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42 | #include <QtCore/QFile>
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43 | #include <QtCore/QTextCodec>
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44 | #include <QtCore/QTimer>
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45 | #include <QtCore/QXmlStreamReader>
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46 |
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47 | #include <QtNetwork/QNetworkRequest>
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48 |
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49 | #include "qacceltreebuilder_p.h"
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50 | #include "qatomicstring_p.h"
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51 | #include "qautoptr_p.h"
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52 | #include "qcommonsequencetypes_p.h"
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53 |
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54 | #include "qacceltreeresourceloader_p.h"
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55 |
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56 | QT_BEGIN_NAMESPACE
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57 |
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58 | using namespace QPatternist;
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59 |
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60 | static inline uint qHash(const QUrl &uri)
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61 | {
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62 | return qHash(uri.toString());
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63 | }
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64 |
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65 | AccelTreeResourceLoader::AccelTreeResourceLoader(const NamePool::Ptr &np,
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66 | const NetworkAccessDelegator::Ptr &manager) : m_namePool(np)
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67 | , m_networkAccessDelegator(manager)
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68 | {
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69 | Q_ASSERT(m_namePool);
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70 | Q_ASSERT(m_networkAccessDelegator);
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71 | }
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72 |
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73 | bool AccelTreeResourceLoader::retrieveDocument(const QUrl &uri,
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74 | const ReportContext::Ptr &context)
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75 | {
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76 | Q_ASSERT(uri.isValid());
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77 | AccelTreeBuilder<true> builder(uri, uri, m_namePool, context.data());
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78 |
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79 | const AutoPtr<QNetworkReply> reply(load(uri, m_networkAccessDelegator, context));
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80 |
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81 | if(!reply)
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82 | return false;
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83 |
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84 | bool success = false;
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85 | success = streamToReceiver(reply.data(), &builder, m_namePool, context, uri);
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86 |
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87 | m_loadedDocuments.insert(uri, builder.builtDocument());
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88 | return success;
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89 | }
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90 |
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91 | QNetworkReply *AccelTreeResourceLoader::load(const QUrl &uri,
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92 | const NetworkAccessDelegator::Ptr &networkDelegator,
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93 | const ReportContext::Ptr &context)
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94 | {
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95 | return load(uri,
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96 | networkDelegator->managerFor(uri),
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97 | context);
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98 | }
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99 |
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100 | QNetworkReply *AccelTreeResourceLoader::load(const QUrl &uri,
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101 | QNetworkAccessManager *const networkManager,
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102 | const ReportContext::Ptr &context)
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103 | {
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104 | Q_ASSERT(networkManager);
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105 | Q_ASSERT(uri.isValid());
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106 |
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107 | NetworkLoop networkLoop;
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108 |
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109 | QNetworkRequest request(uri);
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110 | QNetworkReply *const reply = networkManager->get(request);
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111 | networkLoop.connect(reply, SIGNAL(error(QNetworkReply::NetworkError)), SLOT(error(QNetworkReply::NetworkError)));
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112 | networkLoop.connect(reply, SIGNAL(finished()), SLOT(finished()));
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113 |
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114 | if(networkLoop.exec())
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115 | {
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116 | const QString errorMessage(escape(reply->errorString()));
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117 |
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118 | /* Note, we delete reply before we exit this function with error(). */
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119 | delete reply;
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120 |
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121 | const QSourceLocation location(uri);
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122 |
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123 | if(context)
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124 | context->error(errorMessage, ReportContext::FODC0002, location);
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125 |
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126 | return 0;
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127 | }
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128 | else
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129 | return reply;
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130 | }
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131 |
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132 | bool AccelTreeResourceLoader::streamToReceiver(QIODevice *const dev,
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133 | QAbstractXmlReceiver *const receiver,
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134 | const NamePool::Ptr &np,
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135 | const ReportContext::Ptr &context,
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136 | const QUrl &uri)
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137 | {
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138 | Q_ASSERT(dev);
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139 | Q_ASSERT(receiver);
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140 | Q_ASSERT(np);
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141 |
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142 | QXmlStreamReader reader(dev);
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143 |
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144 | /* Optimize: change NamePool to take QStringRef such that we don't have to call toString() below. That
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145 | * will save us a gazillion of temporary QStrings. */
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146 |
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147 | while(!reader.atEnd())
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148 | {
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149 | reader.readNext();
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150 |
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151 | switch(reader.tokenType())
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152 | {
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153 | case QXmlStreamReader::StartElement:
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154 | {
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155 | /* Send the name. */
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156 | receiver->startElement(np->allocateQName(reader.namespaceUri().toString(), reader.name().toString(),
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157 | reader.prefix().toString()));
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158 |
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159 | /* Send namespace declarations. */
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160 | const QXmlStreamNamespaceDeclarations &nss = reader.namespaceDeclarations();
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161 |
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162 | /* The far most common case, is for it to be empty. */
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163 | if(!nss.isEmpty())
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164 | {
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165 | const int len = nss.size();
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166 |
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167 | for(int i = 0; i < len; ++i)
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168 | {
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169 | const QXmlStreamNamespaceDeclaration &ns = nss.at(i);
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170 | receiver->namespaceBinding(np->allocateBinding(ns.prefix().toString(), ns.namespaceUri().toString()));
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171 | }
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172 | }
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173 |
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174 | /* Send attributes. */
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175 | const QXmlStreamAttributes &attrs = reader.attributes();
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176 | const int len = attrs.size();
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177 |
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178 | for(int i = 0; i < len; ++i)
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179 | {
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180 | const QXmlStreamAttribute &attr = attrs.at(i);
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181 |
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182 | receiver->attribute(np->allocateQName(attr.namespaceUri().toString(), attr.name().toString(),
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183 | attr.prefix().toString()),
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184 | attr.value());
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