| 1 | // %pacpus:license{
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| 2 | // This file is part of the PACPUS framework distributed under the
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| 3 | // CECILL-C License, Version 1.0.
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| 4 | // %pacpus:license}
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| 5 | /// @version $Id: ComponentBase.cpp 76 2013-01-10 17:05:10Z kurdejma $
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| 6 |
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| 7 | #include <Pacpus/kernel/ComponentBase.h>
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| 8 |
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| 9 | #include <Pacpus/kernel/ComponentManager.h>
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| 10 | #include <Pacpus/kernel/Log.h>
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| 11 | #include <Pacpus/kernel/PacpusException.h>
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| 12 |
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| 13 | #include <boost/program_options/parsers.hpp>
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| 14 | #include <boost/program_options/variables_map.hpp>
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| 15 | #include <ostream>
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| 16 | #include <string>
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| 17 | #include <vector>
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| 18 |
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| 19 | namespace po = boost::program_options;
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| 20 | using namespace pacpus;
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| 21 | using namespace std;
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| 22 |
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| 23 | vector<string> convertAttributesToArgumentVector(const QDomNamedNodeMap & attributes);
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| 24 |
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| 25 | namespace std
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| 26 | {
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| 27 |
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| 28 | template <typename _Elem, typename _Traits>
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| 29 | std::basic_ostream<_Elem, _Traits> & operator<<(std::basic_ostream<_Elem, _Traits> & os, const boost::program_options::variables_map & vm)
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| 30 | {
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| 31 | for (po::variables_map::const_iterator i = vm.begin(); i != vm.end(); ++i) {
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| 32 | const po::variable_value & v = i->second;
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| 33 | if (v.empty()) {
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| 34 | continue;
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| 35 | }
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| 36 | const type_info & type = v.value().type();
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| 37 | if (type == typeid(string)) {
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| 38 | const string & val = v.as<string>();
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| 39 | os << i->first << "=" << val;
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| 40 | } else if (type == typeid(long)) {
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| 41 | int val = v.as<long>();
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| 42 | os << i->first << "=" << val;
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| 43 | } else if (type == typeid(int)) {
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| 44 | int val = v.as<int>();
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| 45 | os << i->first << "=" << val;
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| 46 | } else if (type == typeid(unsigned long)) {
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| 47 | int val = v.as<unsigned long>();
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| 48 | os << i->first << "=" << val;
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| 49 | } else if (type == typeid(unsigned int)) {
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| 50 | int val = v.as<unsigned int>();
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| 51 | os << i->first << "=" << val;
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| 52 | } else if (type == typeid(double)) {
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| 53 | int val = v.as<double>();
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| 54 | os << i->first << "=" << val;
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| 55 | } else if (type == typeid(float)) {
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| 56 | int val = v.as<float>();
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| 57 | os << i->first << "=" << val;
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| 58 | } else if (type == typeid(bool)) {
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| 59 | int val = v.as<bool>();
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| 60 | os << i->first << "=" << val;
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| 61 | } else {
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| 62 | // unknown value type
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| 63 | os << i->first;
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| 64 | }
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| 65 | os << "\n";
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| 66 | }
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| 67 | return os;
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| 68 | }
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| 69 |
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| 70 | } // namespace std
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| 71 |
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| 72 | DECLARE_STATIC_LOGGER("pacpus.core.ComponentBase");
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| 73 |
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| 74 | ComponentBase::ComponentBase(const QString & componentName)
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| 75 | : m_componentName(componentName)
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| 76 | , m_isActive(false)
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| 77 | , mIsRecording(true)
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| 78 | , m_manager(NULL)
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| 79 | , m_ui(NULL)
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| 80 | , m_componentState(NOT_MONITORED)
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| 81 | , mOptionsDescription("Component parameters")
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| 82 | {
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| 83 | LOG_TRACE("constructor");
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| 84 | // Get a pointer on the instance of ComponentManager.
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| 85 | m_manager = ComponentManager::getInstance();
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| 86 | LOG_INFO("component " << getName() << " was created");
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| 87 |
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| 88 | addParameters()
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| 89 | ("name", po::value<string>(&mName)->required(), "component name")
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| 90 | ("type", po::value<string>(&mTypeName)->required(), "component type")
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| 91 | ("ui", po::value<bool>(&mHasGui)->default_value(false), "whether to show GUI")
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| 92 | ("verbose", po::value<bool>(&mVerbose)->default_value(false), "set output verbose")
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| 93 | ("verbosity-level", po::value<int>(&mVerbosityLevel)->default_value(0), "set verbosity level")
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| 94 | ("recording", po::value<bool>(&mIsRecording)->default_value(false), "whether to record data")
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| 95 | ;
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| 96 | }
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| 97 |
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| 98 | ComponentBase::~ComponentBase()
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| 99 | {
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| 100 | LOG_TRACE("destructor");
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| 101 | }
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| 102 |
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| 103 | bool ComponentBase::isActive() const
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| 104 | {
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| 105 | return m_isActive;
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| 106 | }
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| 107 |
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| 108 | void ComponentBase::setActive(bool isActive)
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| 109 | {
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| 110 | m_isActive = isActive;
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| 111 | }
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| 112 |
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| 113 | bool ComponentBase::isRecording() const
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| 114 | {
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| 115 | return mIsRecording;
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| 116 | }
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| 117 |
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| 118 | void ComponentBase::setRecording(bool isRecording)
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| 119 | {
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| 120 | mIsRecording = isRecording;
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| 121 | }
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| 122 |
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| 123 | const XmlComponentConfig ComponentBase::xmlParameters() const
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| 124 | {
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| 125 | return param;
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| 126 | }
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| 127 |
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| 128 | int ComponentBase::startComponent()
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| 129 | {
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| 130 | if (isActive()) {
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| 131 | LOG_DEBUG("component already started, cannot (re-)start");
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| 132 | return false;
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| 133 | }
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| 134 |
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| 135 | setActive(true);
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| 136 | startActivity();
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| 137 |
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| 138 | return true;
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| 139 | }
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| 140 |
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| 141 | int ComponentBase::stopComponent()
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| 142 | {
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| 143 | if (!isActive()) {
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| 144 | LOG_DEBUG("component already stopped, cannot (re-)stop");
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| 145 | return false;
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| 146 | }
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| 147 |
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| 148 | setActive(false);
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| 149 | stopActivity();
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| 150 |
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| 151 | return true;
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| 152 | }
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| 153 |
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| 154 | void ComponentBase::setState(const COMPONENT_STATE state)
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| 155 | {
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| 156 | m_componentState = state;
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| 157 | }
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| 158 |
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| 159 | // FIXME: this should be const.
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| 160 | ComponentBase::COMPONENT_STATE ComponentBase::getState()
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| 161 | {
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| 162 | COMPONENT_STATE state = m_componentState;
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| 163 | if (ComponentBase::NOT_MONITORED != m_componentState) {
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| 164 | m_componentState = ComponentBase::MONITOR_NOK;
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| 165 | }
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| 166 | return state;
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| 167 | }
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| 168 |
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| 169 | ComponentBase::COMPONENT_CONFIGURATION ComponentBase::configurationState() const
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| 170 | {
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| 171 | return m_configurationState;
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| 172 | }
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| 173 |
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| 174 | void ComponentBase::setConfigurationState(COMPONENT_CONFIGURATION state)
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| 175 | {
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| 176 | m_configurationState = state;
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| 177 | }
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| 178 |
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| 179 | bool ComponentBase::isConfigured() const
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| 180 | {
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| 181 | return (m_configurationState == CONFIGURED_OK);
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| 182 | }
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| 183 |
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| 184 | QString ComponentBase::getName() const
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| 185 | {
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| 186 | return m_componentName;
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| 187 | }
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| 188 |
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| 189 | ComponentBase::InputsMap & ComponentBase::inputs()
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| 190 | {
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| 191 | return m_inputs;
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| 192 | }
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| 193 |
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| 194 | const ComponentBase::InputsMap & ComponentBase::inputs() const
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| 195 | {
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| 196 | return m_inputs;
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| 197 | }
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| 198 |
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| 199 | ComponentBase::OutputsMap & ComponentBase::outputs()
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| 200 | {
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| 201 | return m_outputs;
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| 202 | }
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| 203 |
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| 204 | const ComponentBase::OutputsMap & ComponentBase::outputs() const
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| 205 | {
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| 206 | return m_outputs;
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| 207 | }
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| 208 |
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| 209 | InputInterfaceBase * ComponentBase::getInput(QString inputName) const
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| 210 | {
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| 211 | if (inputs().contains(inputName)) {
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| 212 | return inputs()[inputName];
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| 213 | }
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| 214 | LOG_WARN("Component " << getName() << " does not contain input " << inputName);
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| 215 | return NULL;
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| 216 | }
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| 217 |
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| 218 | OutputInterfaceBase * ComponentBase::getOutput(QString outputName) const
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| 219 | {
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| 220 | if (outputs().contains(outputName)) {
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| 221 | return outputs()[outputName];
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| 222 | }
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| 223 | LOG_WARN("Component " << getName() << " does not contain output " << outputName);
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| 224 | return NULL;
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| 225 | }
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| 226 |
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| 227 | bool ComponentBase::hasGui() const
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| 228 | {
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| 229 | return mHasGui;
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| 230 | }
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| 231 |
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| 232 | bool ComponentBase::isOutputVerbose() const
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| 233 | {
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| 234 | return mVerbose || (getVerbosityLevel() > 0);
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| 235 | }
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| 236 |
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| 237 | int ComponentBase::getVerbosityLevel() const
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| 238 | {
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| 239 | return mVerbosityLevel;
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| 240 | }
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| 241 |
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| 242 | po::options_description_easy_init ComponentBase::addParameters()
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| 243 | {
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| 244 | return mOptionsDescription.add_options();
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| 245 | }
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| 246 |
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| 247 | class DomElementParser
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| 248 | {
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| 249 | public:
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| 250 | DomElementParser(QDomElement const& args);
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| 251 |
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| 252 | /** Sets options descriptions to use. */
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| 253 | DomElementParser& options(const boost::program_options::options_description& desc);
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| 254 |
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| 255 | /** Parses the options and returns the result of parsing.
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| 256 | Throws on error.
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| 257 | */
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| 258 | boost::program_options::basic_parsed_options<char> run();
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| 259 |
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| 260 | /** Specifies that unregistered options are allowed and should
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| 261 | be passed though. For each command like token that looks
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| 262 | like an option but does not contain a recognized name, an
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| 263 | instance of basic_option<charT> will be added to result,
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| 264 | with 'unrecognized' field set to 'true'. It's possible to
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| 265 | collect all unrecognized options with the 'collect_unrecognized'
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| 266 | funciton.
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| 267 | */
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| 268 | DomElementParser& allow_unregistered();
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| 269 |
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| 270 | private:
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| 271 | boost::program_options::basic_parsed_options<char> parseDomElement(
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| 272 | const QDomElement& dom_element,
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| 273 | const boost::program_options::options_description& desc,
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| 274 | bool allow_unregistered = false);
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| 275 |
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| 276 | private:
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| 277 | const boost::program_options::options_description* m_desc;
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| 278 | const QDomElement& m_dom_element;
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| 279 | bool m_allow_unregistered;
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| 280 | };
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| 281 |
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| 282 | DomElementParser::DomElementParser(const QDomElement& dom_element)
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| 283 | : m_dom_element(dom_element)
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| 284 | , m_allow_unregistered(false)
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| 285 | {
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| 286 | }
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| 287 |
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| 288 | DomElementParser& DomElementParser::options(const boost::program_options::options_description& desc)
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| 289 | {
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| 290 | m_desc = &desc;
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| 291 | return *this;
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| 292 | }
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| 293 |
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| 294 | DomElementParser& DomElementParser::allow_unregistered()
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| 295 | {
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| 296 | m_allow_unregistered = true;
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| 297 | return *this;
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| 298 | }
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| 299 |
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| 300 | #include <boost/iterator/iterator_facade.hpp>
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| 301 | #include <boost/program_options/errors.hpp>
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| 302 |
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| 303 | namespace detail
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| 304 | {
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| 305 | template <typename charT>
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| 306 | class basic_dom_element_iterator
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| 307 | : public boost::iterator_facade<
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| 308 | basic_dom_element_iterator<charT>
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| 309 | , const boost::program_options::option
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| 310 | , boost::random_access_traversal_tag
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| 311 | >
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| 312 | {
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| 313 | public:
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| 314 | typedef boost::program_options::option ValueType;
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| 315 |
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| 316 | basic_dom_element_iterator<charT>()
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| 317 | : m_dom_element(NULL)
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| 318 | , m_at_eof(true)
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| 319 | {
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| 320 | }
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| 321 |
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| 322 | basic_dom_element_iterator<charT>(const QDomElement& dom_element,
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| 323 | const std::set<std::string>& allowed_options,
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| 324 | bool allow_unregistered = false)
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| 325 | : m_dom_element(&dom_element)
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| 326 | , m_allowed_options(allowed_options)
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| 327 | , m_allow_unregistered(allow_unregistered)
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| 328 | , m_i(0)
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| 329 | {
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| 330 | m_attrs = m_dom_element->attributes();
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| 331 | m_at_eof = !(m_i < m_attrs.size());
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| 332 | if (!m_at_eof) {
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| 333 | get();
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| 334 | }
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| 335 | }
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| 336 |
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| 337 | private:
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| 338 | friend class ::boost::iterator_core_access;
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| 339 |
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| 340 | bool equal(const basic_dom_element_iterator<charT>& other) const
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| 341 | {
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| 342 | if (m_at_eof && other.m_at_eof) {
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| 343 | return true;
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| 344 | }
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| 345 | return false;
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| 346 | }
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| 347 |
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| 348 | void increment()
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| 349 | {
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| 350 | ++m_i;
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| 351 | m_at_eof = !(m_i < m_attrs.size());
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| 352 | if (!m_at_eof) {
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| 353 | get();
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| 354 | }
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| 355 | }
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| 356 |
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| 357 | const ValueType& dereference() const
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| 358 | {
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| 359 | return m_value;
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| 360 | }
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| 361 |
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| 362 | void advance(size_t n)
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| 363 | {
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| 364 | m_i += n;
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| 365 | m_at_eof = !(m_i < m_attrs.size());
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| 366 | if (!m_at_eof) {
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| 367 | get();
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| 368 | }
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| 369 | }
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| 370 |
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| 371 | difference_type distance_to(const basic_dom_element_iterator<charT>& other) const
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| 372 | {
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| 373 | return other.m_i - this->m_i;
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| 374 | }
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| 375 |
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| 376 | private:
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| 377 | ValueType& value()
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| 378 | {
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| 379 | return m_value;
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| 380 | }
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| 381 |
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| 382 | void get()
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| 383 | {
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| 384 | using namespace boost::program_options;
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| 385 |
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| 386 | QDomNode node = m_attrs.item(m_i);
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| 387 | QDomAttr attr = node.toAttr();
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| 388 |
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| 389 | string name = attr.name().toStdString();
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| 390 | string value = attr.value().toStdString();
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| 391 |
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| 392 | bool registered = allowed_option(name);
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| 393 | if (!registered && !m_allow_unregistered) {
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| 394 | boost::throw_exception(unknown_option(name));
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| 395 | }
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| 396 |
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| 397 | this->value().string_key = name;
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| 398 | this->value().value.clear();
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| 399 | this->value().value.push_back(value);
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| 400 | this->value().unregistered = !registered;
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| 401 | this->value().original_tokens.push_back(name);
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| 402 | this->value().original_tokens.push_back(value);
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| 403 | }
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| 404 |
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| 405 | bool allowed_option(const std::string& s) const
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| 406 | {
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| 407 | set<string>::const_iterator i = m_allowed_options.find(s);
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| 408 | if (i != m_allowed_options.end()) {
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| 409 | return true;
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| 410 | }
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| 411 | return false;
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| 412 | }
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| 413 |
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| 414 | private:
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| 415 | const QDomElement* m_dom_element;
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| 416 | std::set<std::string> m_allowed_options;
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| 417 | bool m_allow_unregistered;
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| 418 |
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| 419 | QDomNamedNodeMap m_attrs;
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| 420 | int m_i;
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| 421 | bool m_at_eof;
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| 422 | ValueType m_value;
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| 423 | };
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| 424 |
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| 425 | typedef basic_dom_element_iterator<char> dom_element_iterator;
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| 426 | typedef basic_dom_element_iterator<wchar_t> wdom_element_iterator;
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| 427 |
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| 428 | }
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| 429 |
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| 430 | boost::program_options::basic_parsed_options<char> DomElementParser::run()
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| 431 | {
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| 432 | assert(m_desc);
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| 433 | return parseDomElement(m_dom_element, *m_desc, m_allow_unregistered);
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| 434 | }
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| 435 |
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| 436 | boost::program_options::basic_parsed_options<char> DomElementParser::parseDomElement(
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| 437 | const QDomElement& dom_element,
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| 438 | const boost::program_options::options_description& desc,
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| 439 | bool allow_unregistered)
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| 440 | {
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| 441 | // TODO: use XPath paths
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| 442 |
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| 443 | typedef char charT;
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| 444 |
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| 445 | using boost::program_options::error;
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| 446 | using boost::shared_ptr;
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| 447 | using namespace boost::program_options;
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| 448 | using ::detail::basic_dom_element_iterator;
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| 449 |
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| 450 | set<string> allowed_options;
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| 451 |
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| 452 | const vector<shared_ptr<option_description> >& options = desc.options();
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| 453 | for (unsigned i = 0; i < options.size(); ++i) {
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| 454 | const option_description& d = *options[i];
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| 455 |
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| 456 | if (d.long_name().empty()) {
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| 457 | boost::throw_exception(
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| 458 | error("abbreviated option names are not permitted when parsing DOM elements"));
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| 459 | }
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| 460 |
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| 461 | allowed_options.insert(d.long_name());
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| 462 | }
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| 463 |
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| 464 | // Parser returns char strings
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| 465 | parsed_options result(&desc);
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| 466 | copy(basic_dom_element_iterator<charT>(dom_element, allowed_options, allow_unregistered),
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| 467 | basic_dom_element_iterator<charT>(),
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| 468 | back_inserter(result.options));
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| 469 |
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| 470 | // Convert char strings into desired type.
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| 471 | return basic_parsed_options<charT>(result);
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| 472 | }
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| 473 |
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| 474 | DomElementParser parseDomElement();
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| 475 |
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| 476 | /** Creates instance of 'command_line_parser', passes parameters to it,
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| 477 | and returns the result of calling the 'run' method.
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| 478 | */
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| 479 | boost::program_options::basic_parsed_options<char>
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| 480 | parseDomElement(QDomElement const& domElement, const boost::program_options::options_description&);
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| 481 |
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| 482 | boost::program_options::basic_parsed_options<char>
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| 483 | parseDomElement(QDomElement const& domElement, const boost::program_options::options_description& desc)
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| 484 | {
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| 485 | return DomElementParser(domElement)
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| 486 | .options(desc)
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| 487 | .run();
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| 488 | }
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| 489 |
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| 490 | void ComponentBase::parseParameters(XmlComponentConfig const& cfg)
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| 491 | {
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| 492 | LOG_INFO("Parsing parameters...");
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| 493 | LOG_INFO(mOptionsDescription);
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| 494 |
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| 495 | po::variables_map vm;
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| 496 | try {
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| 497 | po::store(
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| 498 | DomElementParser(cfg.getDomElement())
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| 499 | .options(mOptionsDescription)
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| 500 | .allow_unregistered() // FIXME: temporary only, at term all the components specify all parameters
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| 501 | .run()
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| 502 | , vm);
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| 503 | po::notify(vm);
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| 504 | } catch (po::error& e) {
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| 505 | LOG_WARN(e.what());
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| 506 | throw PacpusException(e.what());
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| 507 | }
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| 508 |
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| 509 | LOG_INFO("Parsed parameter values:\n" << vm);
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| 510 | }
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| 511 |
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| 512 | vector<string> convertAttributesToArgumentVector(const QDomNamedNodeMap & attributes)
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| 513 | {
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| 514 | vector<string> xargs;
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| 515 | xargs.reserve(attributes.size());
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| 516 |
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| 517 | for (int i = 0; i < attributes.size(); ++i) {
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| 518 | QDomAttr parameter = attributes.item(i).toAttr();
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| 519 | if (parameter.isNull()) {
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| 520 | LOG_WARN("node is not a parameter");
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| 521 | continue;
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| 522 | }
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| 523 |
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| 524 | QString arg = QString("--") + parameter.name() + "=";
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| 525 |
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| 526 | bool shouldAddQuotes = parameter.value().contains(' ');
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| 527 | if (shouldAddQuotes) {
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| 528 | arg += '\"';
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| 529 | arg += parameter.value();
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| 530 | arg += '\"';
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| 531 | } else {
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| 532 | arg += parameter.value();
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| 533 | }
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| 534 |
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| 535 | LOG_DEBUG("parameter: " << arg);
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| 536 | xargs.push_back(arg.toStdString());
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| 537 | }
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| 538 |
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| 539 | return xargs;
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| 540 | }
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