Mercurial > hg > orthanc

annotate OrthancServer/Internals/FindScp.cpp @ 1787:1b1d5470233f worklists

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refactoring of DicomFindAnswers
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 18 Nov 2015 15:50:32 +0100
parents 164d78911382
children 6a2d507ef064
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, 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 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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34 /*=========================================================================
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35
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36 This file is based on portions of the following project:
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37
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38 Program: DCMTK 3.6.0
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39 Module: http://dicom.offis.de/dcmtk.php.en
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41 Copyright (C) 1994-2011, OFFIS e.V.
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42 All rights reserved.
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44 This software and supporting documentation were developed by
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46 OFFIS e.V.
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47 R&D Division Health
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48 Escherweg 2
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49 26121 Oldenburg, Germany
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51 Redistribution and use in source and binary forms, with or without
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52 modification, are permitted provided that the following conditions
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53 are met:
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54
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55 - Redistributions of source code must retain the above copyright
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56 notice, this list of conditions and the following disclaimer.
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57
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58 - Redistributions in binary form must reproduce the above copyright
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59 notice, this list of conditions and the following disclaimer in the
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60 documentation and/or other materials provided with the distribution.
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62 - Neither the name of OFFIS nor the names of its contributors may be
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63 used to endorse or promote products derived from this software
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64 without specific prior written permission.
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66 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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67 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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68 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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69 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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70 HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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71 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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72 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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73 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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74 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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75 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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76 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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78 =========================================================================*/
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81
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82 #include "../PrecompiledHeadersServer.h"
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83 #include "FindScp.h"
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85 #include "../FromDcmtkBridge.h"
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86 #include "../ToDcmtkBridge.h"
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87 #include "../../Core/Logging.h"
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88 #include "../../Core/OrthancException.h"
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89
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90 #include <dcmtk/dcmdata/dcfilefo.h>
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91
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92 namespace Orthanc
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93 {
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94 namespace
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95 {
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96 struct FindScpData
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97 {
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98 IFindRequestHandler* findHandler_;
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99 IWorklistRequestHandler* worklistHandler_;
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100 DicomFindAnswers answers_;
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101 DcmDataset* lastRequest_;
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102 const std::string* remoteIp_;
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103 const std::string* remoteAet_;
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104 bool noCroppingOfResults_;
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105 };
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107
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108 void FindScpCallback(
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109 /* in */
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110 void *callbackData,
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111 OFBool cancelled,
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112 T_DIMSE_C_FindRQ *request,
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113 DcmDataset *requestIdentifiers,
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114 int responseCount,
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115 /* out */
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116 T_DIMSE_C_FindRSP *response,
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117 DcmDataset **responseIdentifiers,
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118 DcmDataset **statusDetail)
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119 {
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120 bzero(response, sizeof(T_DIMSE_C_FindRSP));
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121 *statusDetail = NULL;
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122
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123 std::string sopClassUid(request->AffectedSOPClassUID);
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124
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125 FindScpData& data = *reinterpret_cast<FindScpData*>(callbackData);
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126 if (data.lastRequest_ == NULL)
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127 {
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128 bool ok = false;
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129
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130 try
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131 {
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132 if (sopClassUid == UID_FINDModalityWorklistInformationModel)
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133 {
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134 if (data.worklistHandler_ != NULL)
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135 {
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136 // TODO
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137 /*std::auto_ptr<ParsedDicomFile> query(ParsedDicomFile::CreateFromDcmtkDataset(requestIdentifiers));
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138 DicomWorklistAnswers a;
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139 data.worklistHandler_->Handle(a, *query, *data.remoteIp_, *data.remoteAet_);*/
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140 ok = true;
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141 }
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142 else
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143 {
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144 LOG(ERROR) << "No worklist handler is installed, cannot handle this C-FIND request";
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145 }
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146 }
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147 else
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148 {
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149 if (data.findHandler_ != NULL)
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150 {
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151 DicomMap input;
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152 FromDcmtkBridge::Convert(input, *requestIdentifiers);
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153 data.noCroppingOfResults_ = data.findHandler_->Handle(data.answers_, input,
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154 *data.remoteIp_, *data.remoteAet_);
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155 ok = true;
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156 }
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157 else
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158 {
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159 LOG(ERROR) << "No C-Find handler is installed, cannot handle this request";
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160 }
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161 }
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162 }
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163 catch (OrthancException& e)
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164 {
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165 // Internal error!
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166 LOG(ERROR) << "C-FIND request handler has failed: " << e.What();
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167 }
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168
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169 if (!ok)
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170 {
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171 response->DimseStatus = STATUS_FIND_Failed_UnableToProcess;
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172 *responseIdentifiers = NULL;
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173 return;
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174 }
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175
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176 data.lastRequest_ = requestIdentifiers;
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177 }
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178 else if (data.lastRequest_ != requestIdentifiers)
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179 {
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180 // Internal error!
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181 response->DimseStatus = STATUS_FIND_Failed_UnableToProcess;
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182 *responseIdentifiers = NULL;
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183 return;
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184 }
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185
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186 if (responseCount <= static_cast<int>(data.answers_.GetSize()))
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187 {
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188 // There are pending results that are still to be sent
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189 response->DimseStatus = STATUS_Pending;
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190
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191 void* obj = data.answers_.GetAnswer(responseCount - 1).GetDcmtkObject();
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192 DcmFileFormat* fileFormat = static_cast<DcmFileFormat*>(obj);
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193 assert(fileFormat != NULL);
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194
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195 *responseIdentifiers = new DcmDataset(*fileFormat->getDataset());
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196 }
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197 else if (data.noCroppingOfResults_)
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198 {
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199 // Success: All the results have been sent
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200 response->DimseStatus = STATUS_Success;
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201 *responseIdentifiers = NULL;
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202 }
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203 else
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204 {
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205 // Success, but the results were too numerous and had to be cropped
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206 LOG(WARNING) << "Too many results for an incoming C-FIND query";
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207 response->DimseStatus = STATUS_FIND_Cancel_MatchingTerminatedDueToCancelRequest;
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208 *responseIdentifiers = NULL;
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209 }
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210 }
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211 }
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212
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213
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214 OFCondition Internals::findScp(T_ASC_Association * assoc,
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215 T_DIMSE_Message * msg,
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216 T_ASC_PresentationContextID presID,
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217 IFindRequestHandler* findHandler,
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218 IWorklistRequestHandler* worklistHandler,
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219 const std::string& remoteIp,
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220 const std::string& remoteAet)
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221 {
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222 FindScpData data;
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223 data.lastRequest_ = NULL;
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224 data.findHandler_ = findHandler;
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225 data.worklistHandler_ = worklistHandler;
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226 data.remoteIp_ = &remoteIp;
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227 data.remoteAet_ = &remoteAet;
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228 data.noCroppingOfResults_ = true;
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229
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230 OFCondition cond = DIMSE_findProvider(assoc, presID, &msg->msg.CFindRQ,
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231 FindScpCallback, &data,
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232 /*opt_blockMode*/ DIMSE_BLOCKING,
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233 /*opt_dimse_timeout*/ 0);
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234
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235 // if some error occured, dump corresponding information and remove the outfile if necessary
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236 if (cond.bad())
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237 {
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238 OFString temp_str;
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239 LOG(ERROR) << "Find SCP Failed: " << cond.text();
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240 }
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241
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242 return cond;
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243 }
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244 }