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1 /**
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2 * Palantir - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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18 **/
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19
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20
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21 #include "PalantirInitialization.h"
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22
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23 #include "../Core/PalantirException.h"
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24 #include "../Core/Toolbox.h"
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25
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26 #include <boost/lexical_cast.hpp>
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27 #include <boost/filesystem.hpp>
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28 #include <curl/curl.h>
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29 #include <boost/thread.hpp>
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30
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31 namespace Palantir
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32 {
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33 static const char* CONFIGURATION_FILE = "Configuration.json";
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34
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35 static boost::mutex globalMutex_;
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36 static std::auto_ptr<Json::Value> configuration_;
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37
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38
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39 static void ReadGlobalConfiguration(const char* configurationFile)
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40 {
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41 configuration_.reset(new Json::Value);
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42
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43 std::string content;
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44
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45 if (configurationFile)
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46 {
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47 Toolbox::ReadFile(content, configurationFile);
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48 }
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49 else
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50 {
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51 #if PALANTIR_RELEASE == 0
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52 boost::filesystem::path p = PALANTIR_PATH;
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53 p /= "Resources";
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54 p /= CONFIGURATION_FILE;
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55 Toolbox::ReadFile(content, p.string());
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56 #else
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57 Toolbox::ReadFile(content, CONFIGURATION_FILE);
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58 #endif
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59 }
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60
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61 Json::Reader reader;
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62 if (!reader.parse(content, *configuration_))
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63 {
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64 throw PalantirException("Unable to read the configuration file");
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65 }
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66 }
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67
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68
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69 void PalantirInitialize(const char* configurationFile)
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70 {
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71 boost::mutex::scoped_lock lock(globalMutex_);
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72 ReadGlobalConfiguration(configurationFile);
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73 curl_global_init(CURL_GLOBAL_ALL);
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74 }
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75
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76
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77
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78 void PalantirFinalize()
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79 {
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80 boost::mutex::scoped_lock lock(globalMutex_);
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81 curl_global_cleanup();
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82 configuration_.reset(NULL);
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83 }
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84
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85
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86
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87 std::string GetGlobalStringParameter(const std::string& parameter,
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88 const std::string& defaultValue)
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89 {
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90 boost::mutex::scoped_lock lock(globalMutex_);
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91
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92 if (configuration_->isMember(parameter))
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93 {
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94 return (*configuration_) [parameter].asString();
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95 }
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96 else
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97 {
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98 return defaultValue;
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99 }
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100 }
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101
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102
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103 int GetGlobalIntegerParameter(const std::string& parameter,
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104 int defaultValue)
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105 {
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106 boost::mutex::scoped_lock lock(globalMutex_);
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107
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108 if (configuration_->isMember(parameter))
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109 {
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110 return (*configuration_) [parameter].asInt();
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111 }
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112 else
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113 {
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114 return defaultValue;
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115 }
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116 }
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117
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118
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119
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120 void GetDicomModality(const std::string& name,
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121 std::string& aet,
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122 std::string& address,
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123 int& port)
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124 {
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125 boost::mutex::scoped_lock lock(globalMutex_);
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126
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127 if (!configuration_->isMember("DicomModalities"))
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128 {
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129 throw PalantirException("");
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130 }
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131
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132 const Json::Value& modalities = (*configuration_) ["DicomModalities"];
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133 if (modalities.type() != Json::objectValue ||
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134 !modalities.isMember(name))
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135 {
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136 throw PalantirException("");
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137 }
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138
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139 try
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140 {
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141 aet = modalities[name].get(0u, "").asString();
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142 address = modalities[name].get(1u, "").asString();
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143 port = modalities[name].get(2u, "").asInt();
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144 }
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145 catch (...)
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146 {
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147 throw PalantirException("Badly formatted DICOM modality");
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148 }
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149 }
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150
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151
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152
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153 void GetListOfDicomModalities(std::set<std::string>& target)
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154 {
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155 boost::mutex::scoped_lock lock(globalMutex_);
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156
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157 target.clear();
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158
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159 if (!configuration_->isMember("DicomModalities"))
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160 {
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161 return;
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162 }
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163
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164 const Json::Value& modalities = (*configuration_) ["DicomModalities"];
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165 if (modalities.type() != Json::objectValue)
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166 {
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167 throw PalantirException("Badly formatted list of DICOM modalities");
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168 }
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169
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170 Json::Value::Members members = modalities.getMemberNames();
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171 for (size_t i = 0; i < members.size(); i++)
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172 {
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173 for (size_t j = 0; j < members[i].size(); j++)
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174 {
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175 if (!isalnum(members[i][j]) && members[i][j] != '-')
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176 {
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177 throw PalantirException("Only alphanumeric and dash characters are allowed in the names of the modalities");
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178 }
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179 }
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180
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181 target.insert(members[i]);
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182 }
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183 }
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184 }
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