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1 /**
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2 * Palanthir - 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/PalanthirException.h"
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24 #include "../../Core/Toolbox.h"
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25 #include "../Internals/CommandDispatcher.h"
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26
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27 #include <boost/thread.hpp>
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28 #include <dcmtk/dcmdata/dcdict.h>
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29
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30
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50
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31 namespace Palanthir
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32 {
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33 struct DicomServer::PImpl
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34 {
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35 boost::thread thread_;
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36
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37 //std::set<
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38 };
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39
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40
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41 namespace Internals
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42 {
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43 OFLogger Logger = OFLog::getLogger("dcmtk.apps.storescp");
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44 }
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45
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46
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47 void DicomServer::ServerThread(DicomServer* server)
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48 {
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49 /* Disable "gethostbyaddr" (which results in memory leaks) and use raw IP addresses */
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50 dcmDisableGethostbyaddr.set(OFTrue);
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51
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52 /* make sure data dictionary is loaded */
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53 if (!dcmDataDict.isDictionaryLoaded())
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54 {
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55 OFLOG_WARN(Internals::Logger, "no data dictionary loaded, check environment variable: "
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56 << DCM_DICT_ENVIRONMENT_VARIABLE);
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57 }
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58
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59 /* initialize network, i.e. create an instance of T_ASC_Network*. */
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60 T_ASC_Network *net;
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61 OFCondition cond = ASC_initializeNetwork
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62 (NET_ACCEPTOR, OFstatic_cast(int, server->port_), /*opt_acse_timeout*/ 30, &net);
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63 if (cond.bad())
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64 {
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65 OFString temp_str;
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66 OFLOG_ERROR(Internals::Logger, "cannot create network: " << DimseCondition::dump(temp_str, cond));
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67 throw PalanthirException("Cannot create network");
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0
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68 }
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69
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70 OFLOG_WARN(Internals::Logger, "DICOM server started");
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71
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72 server->started_ = true;
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73
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74 while (server->continue_)
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75 {
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76 /* receive an association and acknowledge or reject it. If the association was */
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77 /* acknowledged, offer corresponding services and invoke one or more if required. */
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78 std::auto_ptr<Internals::CommandDispatcher> dispatcher(Internals::AcceptAssociation(*server, net));
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79
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80 if (dispatcher.get() != NULL)
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81 {
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82 if (server->isThreaded_)
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83 {
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84 server->bagOfDispatchers_.Add(dispatcher.release());
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85 }
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86 else
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87 {
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88 IRunnableBySteps::RunUntilDone(*dispatcher);
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89 }
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90 }
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91 }
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92
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93 OFLOG_WARN(Internals::Logger, "DICOM server stopping");
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94
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95 /* drop the network, i.e. free memory of T_ASC_Network* structure. This call */
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96 /* is the counterpart of ASC_initializeNetwork(...) which was called above. */
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97 cond = ASC_dropNetwork(&net);
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98 if (cond.bad())
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99 {
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100 OFString temp_str;
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101 OFLOG_ERROR(Internals::Logger, DimseCondition::dump(temp_str, cond));
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102 }
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103 }
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104
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105
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106 DicomServer::DicomServer() : pimpl_(new PImpl)
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107 {
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108 aet_ = "ANY-SCP";
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109 port_ = 104;
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110 findRequestHandlerFactory_ = NULL;
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111 moveRequestHandlerFactory_ = NULL;
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112 storeRequestHandlerFactory_ = NULL;
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113 applicationEntityFilter_ = NULL;
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114 checkCalledAet_ = true;
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115 clientTimeout_ = 30;
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116 isThreaded_ = true;
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117 }
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118
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119 DicomServer::~DicomServer()
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120 {
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121 Stop();
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122 }
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123
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124 void DicomServer::SetPortNumber(uint16_t port)
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125 {
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126 Stop();
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127 port_ = port;
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128 }
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129
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130 uint16_t DicomServer::GetPortNumber() const
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131 {
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132 return port_;
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133 }
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134
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135 void DicomServer::SetThreaded(bool isThreaded)
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136 {
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137 Stop();
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138 isThreaded_ = isThreaded;
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139 }
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140
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141 bool DicomServer::IsThreaded() const
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142 {
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143 return isThreaded_;
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144 }
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145
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146 void DicomServer::SetClientTimeout(uint32_t timeout)
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147 {
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148 Stop();
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149 clientTimeout_ = timeout;
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150 }
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151
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152 uint32_t DicomServer::GetClientTimeout() const
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153 {
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154 return clientTimeout_;
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155 }
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156
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157
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158 void DicomServer::SetCalledApplicationEntityTitleCheck(bool check)
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159 {
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160 Stop();
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161 checkCalledAet_ = check;
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162 }
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163
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164 bool DicomServer::HasCalledApplicationEntityTitleCheck() const
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165 {
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166 return checkCalledAet_;
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167 }
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168
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169 void DicomServer::SetApplicationEntityTitle(const std::string& aet)
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170 {
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171 if (aet.size() == 0)
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172 {
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173 throw PalanthirException("Too short AET");
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174 }
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175
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176 for (size_t i = 0; i < aet.size(); i++)
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177 {
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178 if (!isalnum(aet[i]) && aet[i] != '-')
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179 {
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180 throw PalanthirException("Only alphanumeric characters are allowed in AET");
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181 }
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182 }
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183
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184 Stop();
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185 aet_ = aet;
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186 }
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187
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188 const std::string& DicomServer::GetApplicationEntityTitle() const
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189 {
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190 return aet_;
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191 }
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192
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193 void DicomServer::SetFindRequestHandlerFactory(IFindRequestHandlerFactory& factory)
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194 {
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195 Stop();
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196 findRequestHandlerFactory_ = &factory;
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197 }
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198
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199 bool DicomServer::HasFindRequestHandlerFactory() const
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200 {
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201 return (findRequestHandlerFactory_ != NULL);
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202 }
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203
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204 IFindRequestHandlerFactory& DicomServer::GetFindRequestHandlerFactory() const
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205 {
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206 if (HasFindRequestHandlerFactory())
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207 {
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208 return *findRequestHandlerFactory_;
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209 }
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210 else
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211 {
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212 throw PalanthirException("No C-FIND request handler factory");
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213 }
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214 }
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215
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216 void DicomServer::SetMoveRequestHandlerFactory(IMoveRequestHandlerFactory& factory)
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217 {
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218 Stop();
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219 moveRequestHandlerFactory_ = &factory;
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220 }
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221
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222 bool DicomServer::HasMoveRequestHandlerFactory() const
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223 {
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224 return (moveRequestHandlerFactory_ != NULL);
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225 }
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226
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227 IMoveRequestHandlerFactory& DicomServer::GetMoveRequestHandlerFactory() const
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228 {
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229 if (HasMoveRequestHandlerFactory())
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230 {
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231 return *moveRequestHandlerFactory_;
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232 }
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233 else
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234 {
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235 throw PalanthirException("No C-MOVE request handler factory");
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236 }
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237 }
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238
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239 void DicomServer::SetStoreRequestHandlerFactory(IStoreRequestHandlerFactory& factory)
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240 {
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241 Stop();
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242 storeRequestHandlerFactory_ = &factory;
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243 }
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244
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245 bool DicomServer::HasStoreRequestHandlerFactory() const
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246 {
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247 return (storeRequestHandlerFactory_ != NULL);
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248 }
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249
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250 IStoreRequestHandlerFactory& DicomServer::GetStoreRequestHandlerFactory() const
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251 {
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252 if (HasStoreRequestHandlerFactory())
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253 {
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254 return *storeRequestHandlerFactory_;
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255 }
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256 else
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257 {
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258 throw PalanthirException("No C-STORE request handler factory");
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259 }
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260 }
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261
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262 void DicomServer::SetApplicationEntityFilter(IApplicationEntityFilter& factory)
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263 {
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264 Stop();
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265 applicationEntityFilter_ = &factory;
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266 }
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267
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268 bool DicomServer::HasApplicationEntityFilter() const
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269 {
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270 return (applicationEntityFilter_ != NULL);
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271 }
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272
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273 IApplicationEntityFilter& DicomServer::GetApplicationEntityFilter() const
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274 {
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275 if (HasApplicationEntityFilter())
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276 {
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277 return *applicationEntityFilter_;
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278 }
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279 else
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280 {
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281 throw PalanthirException("No application entity filter");
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282 }
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283 }
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284
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285 void DicomServer::Start()
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286 {
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287 Stop();
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288 continue_ = true;
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289 started_ = false;
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290 pimpl_->thread_ = boost::thread(ServerThread, this);
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291
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292 while (!started_)
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293 {
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294 Toolbox::USleep(50000); // Wait 50ms
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295 }
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296 }
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297
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298 void DicomServer::Stop()
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299 {
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300 continue_ = false;
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301 pimpl_->thread_.join();
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302
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303 bagOfDispatchers_.StopAll();
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304 }
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305 }
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