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1 /**
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2 * Orthanc - 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 "DicomServer.h"
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22
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23 #include "../../Core/OrthancException.h"
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24 #include "../../Core/Toolbox.h"
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25 #include "../Internals/DcmtkLogging.h"
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26 #include "../Internals/CommandDispatcher.h"
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27
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28 #include <boost/thread.hpp>
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29 #include <dcmtk/dcmdata/dcdict.h>
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30
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31
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62
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32 namespace Orthanc
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33 {
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34 struct DicomServer::PImpl
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35 {
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36 boost::thread thread_;
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37
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38 //std::set<
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39 };
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40
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41
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42 void DicomServer::ServerThread(DicomServer* server)
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43 {
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44 /* Disable "gethostbyaddr" (which results in memory leaks) and use raw IP addresses */
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45 dcmDisableGethostbyaddr.set(OFTrue);
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46
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47 /* make sure data dictionary is loaded */
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48 if (!dcmDataDict.isDictionaryLoaded())
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49 {
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101
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50 LOG4CPP_WARN(Internals::GetLogger(), "no data dictionary loaded, check environment variable: "
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51 DCM_DICT_ENVIRONMENT_VARIABLE);
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52 }
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53
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54 /* initialize network, i.e. create an instance of T_ASC_Network*. */
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55 T_ASC_Network *net;
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56 OFCondition cond = ASC_initializeNetwork
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57 (NET_ACCEPTOR, OFstatic_cast(int, server->port_), /*opt_acse_timeout*/ 30, &net);
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58 if (cond.bad())
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59 {
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60 LOG4CPP_ERROR(Internals::GetLogger(), "cannot create network: " + std::string(cond.text()));
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61 throw OrthancException("Cannot create network");
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62 }
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63
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64 LOG4CPP_WARN(Internals::GetLogger(), "DICOM server started");
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65
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66 server->started_ = true;
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67
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68 while (server->continue_)
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69 {
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70 /* receive an association and acknowledge or reject it. If the association was */
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71 /* acknowledged, offer corresponding services and invoke one or more if required. */
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72 std::auto_ptr<Internals::CommandDispatcher> dispatcher(Internals::AcceptAssociation(*server, net));
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73
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74 if (dispatcher.get() != NULL)
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75 {
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76 if (server->isThreaded_)
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77 {
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78 server->bagOfDispatchers_.Add(dispatcher.release());
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79 }
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80 else
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81 {
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82 IRunnableBySteps::RunUntilDone(*dispatcher);
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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 LOG4CPP_WARN(Internals::GetLogger(), "DICOM server stopping");
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88
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89 /* drop the network, i.e. free memory of T_ASC_Network* structure. This call */
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90 /* is the counterpart of ASC_initializeNetwork(...) which was called above. */
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91 cond = ASC_dropNetwork(&net);
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92 if (cond.bad())
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93 {
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94 LOG4CPP_ERROR(Internals::GetLogger(), "Error while dropping the network: " + std::string(cond.text()));
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95 }
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96 }
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97
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98
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99 DicomServer::DicomServer() : pimpl_(new PImpl)
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100 {
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101 aet_ = "ANY-SCP";
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102 port_ = 104;
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103 findRequestHandlerFactory_ = NULL;
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104 moveRequestHandlerFactory_ = NULL;
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105 storeRequestHandlerFactory_ = NULL;
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106 applicationEntityFilter_ = NULL;
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107 checkCalledAet_ = true;
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108 clientTimeout_ = 30;
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109 isThreaded_ = true;
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110 }
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111
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112 DicomServer::~DicomServer()
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113 {
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114 Stop();
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115 }
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116
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117 void DicomServer::SetPortNumber(uint16_t port)
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118 {
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119 Stop();
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120 port_ = port;
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121 }
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122
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123 uint16_t DicomServer::GetPortNumber() const
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124 {
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125 return port_;
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126 }
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127
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128 void DicomServer::SetThreaded(bool isThreaded)
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129 {
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130 Stop();
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131 isThreaded_ = isThreaded;
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132 }
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133
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134 bool DicomServer::IsThreaded() const
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135 {
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136 return isThreaded_;
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137 }
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138
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139 void DicomServer::SetClientTimeout(uint32_t timeout)
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140 {
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141 Stop();
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142 clientTimeout_ = timeout;
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143 }
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144
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145 uint32_t DicomServer::GetClientTimeout() const
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146 {
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147 return clientTimeout_;
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148 }
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149
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150
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151 void DicomServer::SetCalledApplicationEntityTitleCheck(bool check)
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152 {
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153 Stop();
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154 checkCalledAet_ = check;
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155 }
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156
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157 bool DicomServer::HasCalledApplicationEntityTitleCheck() const
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158 {
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159 return checkCalledAet_;
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160 }
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161
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162 void DicomServer::SetApplicationEntityTitle(const std::string& aet)
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163 {
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164 if (aet.size() == 0)
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165 {
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166 throw OrthancException("Too short AET");
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167 }
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168
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169 for (size_t i = 0; i < aet.size(); i++)
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170 {
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171 if (!isalnum(aet[i]) && aet[i] != '-')
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172 {
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173 throw OrthancException("Only alphanumeric characters are allowed in AET");
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174 }
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175 }
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176
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177 Stop();
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178 aet_ = aet;
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179 }
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180
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181 const std::string& DicomServer::GetApplicationEntityTitle() const
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182 {
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183 return aet_;
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184 }
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185
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186 void DicomServer::SetFindRequestHandlerFactory(IFindRequestHandlerFactory& factory)
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187 {
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188 Stop();
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189 findRequestHandlerFactory_ = &factory;
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190 }
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191
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192 bool DicomServer::HasFindRequestHandlerFactory() const
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193 {
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194 return (findRequestHandlerFactory_ != NULL);
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195 }
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196
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197 IFindRequestHandlerFactory& DicomServer::GetFindRequestHandlerFactory() const
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198 {
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199 if (HasFindRequestHandlerFactory())
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200 {
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201 return *findRequestHandlerFactory_;
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202 }
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203 else
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204 {
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205 throw OrthancException("No C-FIND request handler factory");
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206 }
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207 }
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208
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209 void DicomServer::SetMoveRequestHandlerFactory(IMoveRequestHandlerFactory& factory)
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210 {
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211 Stop();
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212 moveRequestHandlerFactory_ = &factory;
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213 }
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214
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215 bool DicomServer::HasMoveRequestHandlerFactory() const
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216 {
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217 return (moveRequestHandlerFactory_ != NULL);
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218 }
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219
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220 IMoveRequestHandlerFactory& DicomServer::GetMoveRequestHandlerFactory() const
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221 {
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222 if (HasMoveRequestHandlerFactory())
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223 {
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224 return *moveRequestHandlerFactory_;
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225 }
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226 else
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227 {
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228 throw OrthancException("No C-MOVE request handler factory");
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229 }
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230 }
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231
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232 void DicomServer::SetStoreRequestHandlerFactory(IStoreRequestHandlerFactory& factory)
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233 {
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234 Stop();
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235 storeRequestHandlerFactory_ = &factory;
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236 }
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237
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238 bool DicomServer::HasStoreRequestHandlerFactory() const
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239 {
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240 return (storeRequestHandlerFactory_ != NULL);
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241 }
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242
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243 IStoreRequestHandlerFactory& DicomServer::GetStoreRequestHandlerFactory() const
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244 {
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245 if (HasStoreRequestHandlerFactory())
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246 {
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247 return *storeRequestHandlerFactory_;
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248 }
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249 else
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250 {
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251 throw OrthancException("No C-STORE request handler factory");
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252 }
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253 }
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254
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255 void DicomServer::SetApplicationEntityFilter(IApplicationEntityFilter& factory)
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256 {
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257 Stop();
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258 applicationEntityFilter_ = &factory;
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259 }
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260
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261 bool DicomServer::HasApplicationEntityFilter() const
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262 {
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263 return (applicationEntityFilter_ != NULL);
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264 }
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265
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266 IApplicationEntityFilter& DicomServer::GetApplicationEntityFilter() const
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267 {
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268 if (HasApplicationEntityFilter())
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269 {
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270 return *applicationEntityFilter_;
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271 }
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272 else
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273 {
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274 throw OrthancException("No application entity filter");
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275 }
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276 }
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277
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278 void DicomServer::Start()
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279 {
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280 Stop();
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281 continue_ = true;
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282 started_ = false;
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283 pimpl_->thread_ = boost::thread(ServerThread, this);
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284
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285 while (!started_)
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286 {
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287 Toolbox::USleep(50000); // Wait 50ms
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288 }
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289 }
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290
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291 void DicomServer::Stop()
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292 {
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293 continue_ = false;
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294 pimpl_->thread_.join();
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295
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296 bagOfDispatchers_.StopAll();
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297 }
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298 }
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