Mercurial > hg > orthanc
annotate OrthancFramework/Sources/DicomNetworking/Internals/FindScp.cpp @ 4466:2243f1bb909b
ABI compatibility for DicomStoreUserConnection::Transcode()
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 21 Jan 2021 17:54:44 +0100 |
parents | d9473bd5ed43 |
children | 8efeaba1b7f9 |
rev | line source |
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0 | 1 /** |
62 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
0 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
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8 * modify it under the terms of the GNU Lesser General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
136 | 11 * |
0 | 12 * This program is distributed in the hope that it will be useful, but |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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15 * Lesser General Public License for more details. |
0 | 16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
0 | 20 **/ |
21 | |
22 | |
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23 |
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24 |
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25 /*========================================================================= |
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26 |
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27 This file is based on portions of the following project: |
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28 |
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29 Program: DCMTK 3.6.0 |
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30 Module: http://dicom.offis.de/dcmtk.php.en |
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31 |
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32 Copyright (C) 1994-2011, OFFIS e.V. |
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33 All rights reserved. |
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34 |
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35 This software and supporting documentation were developed by |
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36 |
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37 OFFIS e.V. |
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38 R&D Division Health |
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39 Escherweg 2 |
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40 26121 Oldenburg, Germany |
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41 |
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42 Redistribution and use in source and binary forms, with or without |
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43 modification, are permitted provided that the following conditions |
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44 are met: |
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45 |
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46 - Redistributions of source code must retain the above copyright |
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47 notice, this list of conditions and the following disclaimer. |
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48 |
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49 - Redistributions in binary form must reproduce the above copyright |
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50 notice, this list of conditions and the following disclaimer in the |
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51 documentation and/or other materials provided with the distribution. |
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52 |
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53 - Neither the name of OFFIS nor the names of its contributors may be |
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54 used to endorse or promote products derived from this software |
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55 without specific prior written permission. |
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56 |
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57 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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58 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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59 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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60 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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61 HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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62 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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63 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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64 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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65 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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66 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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67 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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68 |
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69 =========================================================================*/ |
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70 |
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71 |
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72 |
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73 #include "../../PrecompiledHeaders.h" |
0 | 74 #include "FindScp.h" |
75 | |
3451 | 76 #include "../../DicomFormat/DicomArray.h" |
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77 #include "../../DicomParsing/FromDcmtkBridge.h" |
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78 #include "../../DicomParsing/ToDcmtkBridge.h" |
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79 #include "../../Logging.h" |
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80 #include "../../OrthancException.h" |
0 | 81 |
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82 #include <dcmtk/dcmdata/dcfilefo.h> |
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83 #include <dcmtk/dcmdata/dcdeftag.h> |
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84 |
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85 |
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86 |
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87 /** |
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88 * The function below is extracted from DCMTK 3.6.0, cf. file |
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89 * "dcmtk-3.6.0/dcmwlm/libsrc/wldsfs.cc". |
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90 **/ |
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91 |
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92 static void HandleExistentButEmptyReferencedStudyOrPatientSequenceAttributes(DcmDataset *dataset, |
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93 const DcmTagKey &sequenceTagKey) |
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94 // Date : May 3, 2005 |
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95 // Author : Thomas Wilkens |
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96 // Task : This function performs a check on a sequence attribute in the given dataset. At two different places |
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97 // in the definition of the DICOM worklist management service, a sequence attribute with a return type |
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98 // of 2 is mentioned containing two 1C attributes in its item; the condition of the two 1C attributes |
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99 // specifies that in case a sequence item is present, then these two attributes must be existent and |
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100 // must contain a value. (I am talking about ReferencedStudySequence and ReferencedPatientSequence.) |
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101 // In cases where the sequence attribute contains exactly one item with an empty ReferencedSOPClass |
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102 // and an empty ReferencedSOPInstance, we want to remove the item from the sequence. This is what |
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103 // this function does. |
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104 // Parameters : dataset - [in] Dataset in which the consistency of the sequence attribute shall be checked. |
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105 // sequenceTagKey - [in] DcmTagKey of the sequence attribute which shall be checked. |
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106 // Return Value : none. |
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107 { |
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108 DcmElement *sequenceAttribute = NULL, *referencedSOPClassUIDAttribute = NULL, *referencedSOPInstanceUIDAttribute = NULL; |
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109 |
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110 // in case the sequence attribute contains exactly one item with an empty |
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111 // ReferencedSOPClassUID and an empty ReferencedSOPInstanceUID, remove the item |
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112 if( dataset->findAndGetElement( sequenceTagKey, sequenceAttribute ).good() && |
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113 ( (DcmSequenceOfItems*)sequenceAttribute )->card() == 1 && |
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114 ( (DcmSequenceOfItems*)sequenceAttribute )->getItem(0)->findAndGetElement( DCM_ReferencedSOPClassUID, referencedSOPClassUIDAttribute ).good() && |
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115 referencedSOPClassUIDAttribute->getLength() == 0 && |
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116 ( (DcmSequenceOfItems*)sequenceAttribute )->getItem(0)->findAndGetElement( DCM_ReferencedSOPInstanceUID, referencedSOPInstanceUIDAttribute, OFFalse ).good() && |
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117 referencedSOPInstanceUIDAttribute->getLength() == 0 ) |
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118 { |
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119 DcmItem *item = ((DcmSequenceOfItems*)sequenceAttribute)->remove( ((DcmSequenceOfItems*)sequenceAttribute)->getItem(0) ); |
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120 delete item; |
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121 } |
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122 } |
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123 |
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124 |
0 | 125 |
62 | 126 namespace Orthanc |
0 | 127 { |
128 namespace | |
129 { | |
130 struct FindScpData | |
131 { | |
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132 DicomServer::IRemoteModalities* modalities_; |
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133 IFindRequestHandler* findHandler_; |
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134 IWorklistRequestHandler* worklistHandler_; |
0 | 135 DicomFindAnswers answers_; |
136 DcmDataset* lastRequest_; | |
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137 const std::string* remoteIp_; |
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138 const std::string* remoteAet_; |
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139 const std::string* calledAet_; |
2059 | 140 |
4200 | 141 FindScpData() : |
142 modalities_(NULL), | |
143 findHandler_(NULL), | |
144 worklistHandler_(NULL), | |
145 answers_(false), | |
146 lastRequest_(NULL), | |
147 remoteIp_(NULL), | |
148 remoteAet_(NULL), | |
149 calledAet_(NULL) | |
2059 | 150 { |
151 } | |
0 | 152 }; |
153 | |
154 | |
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155 |
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156 static void FixWorklistQuery(ParsedDicomFile& query) |
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157 { |
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158 // TODO: Check out |
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159 // WlmDataSourceFileSystem::HandleExistentButEmptyDescriptionAndCodeSequenceAttributes()" |
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160 // in DCMTK 3.6.0 |
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161 |
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162 DcmDataset* dataset = query.GetDcmtkObject().getDataset(); |
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163 HandleExistentButEmptyReferencedStudyOrPatientSequenceAttributes(dataset, DCM_ReferencedStudySequence); |
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164 HandleExistentButEmptyReferencedStudyOrPatientSequenceAttributes(dataset, DCM_ReferencedPatientSequence); |
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165 } |
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166 |
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167 |
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168 static void FixFindQuery(DicomMap& target, |
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169 const DicomMap& source) |
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170 { |
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171 // "The definition of a Data Set in PS3.5 specifically excludes |
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172 // the range of groups below group 0008, and this includes in |
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173 // particular Meta Information Header elements such as Transfer |
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174 // Syntax UID (0002,0010)." |
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175 // http://dicom.nema.org/medical/dicom/current/output/chtml/part04/sect_C.4.html#sect_C.4.1.1.3 |
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176 // https://groups.google.com/d/msg/orthanc-users/D3kpPuX8yV0/_zgHOzkMEQAJ |
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177 |
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178 DicomArray a(source); |
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179 |
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180 for (size_t i = 0; i < a.GetSize(); i++) |
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181 { |
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182 if (a.GetElement(i).GetTag().GetGroup() >= 0x0008) |
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183 { |
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184 target.SetValue(a.GetElement(i).GetTag(), a.GetElement(i).GetValue()); |
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185 } |
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186 } |
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187 } |
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188 |
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189 |
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190 |
0 | 191 void FindScpCallback( |
192 /* in */ | |
193 void *callbackData, | |
194 OFBool cancelled, | |
195 T_DIMSE_C_FindRQ *request, | |
196 DcmDataset *requestIdentifiers, | |
197 int responseCount, | |
198 /* out */ | |
199 T_DIMSE_C_FindRSP *response, | |
200 DcmDataset **responseIdentifiers, | |
201 DcmDataset **statusDetail) | |
202 { | |
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203 assert(response != NULL); |
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204 assert(requestIdentifiers != NULL); |
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205 |
0 | 206 bzero(response, sizeof(T_DIMSE_C_FindRSP)); |
207 *statusDetail = NULL; | |
208 | |
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209 std::string sopClassUid(request->AffectedSOPClassUID); |
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210 |
656 | 211 FindScpData& data = *reinterpret_cast<FindScpData*>(callbackData); |
0 | 212 if (data.lastRequest_ == NULL) |
213 { | |
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214 { |
4288 | 215 std::stringstream s; // DcmObject::PrintHelper cannot be used with VS2008 |
216 requestIdentifiers->print(s); | |
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217 CLOG(TRACE, DICOM) << "Received C-FIND Request:" << std::endl << s.str(); |
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218 } |
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219 |
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220 bool ok = false; |
0 | 221 |
222 try | |
223 { | |
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224 RemoteModalityParameters modality; |
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225 |
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226 /** |
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227 * Ensure that the remote modality is known to Orthanc for C-FIND requests. |
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228 **/ |
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229 |
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230 assert(data.modalities_ != NULL); |
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231 if (!data.modalities_->LookupAETitle(modality, *data.remoteAet_)) |
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232 { |
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233 throw OrthancException(ErrorCode_UnknownModality, |
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234 "Modality with AET \"" + (*data.remoteAet_) + |
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235 "\" is not defined in the \"DicomModalities\" configuration option"); |
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236 } |
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237 |
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238 |
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239 if (sopClassUid == UID_FINDModalityWorklistInformationModel) |
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240 { |
2059 | 241 data.answers_.SetWorklist(true); |
242 | |
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243 if (data.worklistHandler_ != NULL) |
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244 { |
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245 ParsedDicomFile query(*requestIdentifiers); |
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246 FixWorklistQuery(query); |
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247 |
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248 data.worklistHandler_->Handle(data.answers_, query, |
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249 *data.remoteIp_, *data.remoteAet_, |
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250 *data.calledAet_, modality.GetManufacturer()); |
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251 ok = true; |
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252 } |
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253 else |
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254 { |
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255 CLOG(ERROR, DICOM) << "No worklist handler is installed, cannot handle this C-FIND request"; |
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256 } |
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257 } |
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258 else |
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259 { |
2059 | 260 data.answers_.SetWorklist(false); |
261 | |
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262 if (data.findHandler_ != NULL) |
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263 { |
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264 std::list<DicomTag> sequencesToReturn; |
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265 |
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266 for (unsigned long i = 0; i < requestIdentifiers->card(); i++) |
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267 { |
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268 DcmElement* element = requestIdentifiers->getElement(i); |
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269 if (element && !element->isLeaf()) |
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270 { |
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271 const DicomTag tag(FromDcmtkBridge::Convert(element->getTag())); |
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272 |
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273 DcmSequenceOfItems& sequence = dynamic_cast<DcmSequenceOfItems&>(*element); |
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274 if (sequence.card() != 0) |
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275 { |
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276 CLOG(WARNING, DICOM) << "Orthanc only supports sequence matching on worklists, " |
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277 << "ignoring C-FIND SCU constraint on tag (" << tag.Format() |
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278 << ") " << FromDcmtkBridge::GetTagName(*element); |
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279 } |
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280 |
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281 sequencesToReturn.push_back(tag); |
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282 } |
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283 } |
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284 |
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285 DicomMap input; |
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286 std::set<DicomTag> ignoreTagLength; |
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287 FromDcmtkBridge::ExtractDicomSummary(input, *requestIdentifiers, 0 /* don't truncate tags */, ignoreTagLength); |
2125 | 288 |
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289 DicomMap filtered; |
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290 FixFindQuery(filtered, input); |
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291 |
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292 data.findHandler_->Handle(data.answers_, filtered, sequencesToReturn, |
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293 *data.remoteIp_, *data.remoteAet_, |
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294 *data.calledAet_, modality.GetManufacturer()); |
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295 ok = true; |
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296 } |
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297 else |
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298 { |
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299 CLOG(ERROR, DICOM) << "No C-Find handler is installed, cannot handle this request"; |
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300 } |
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301 } |
0 | 302 } |
62 | 303 catch (OrthancException& e) |
0 | 304 { |
305 // Internal error! | |
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306 CLOG(ERROR, DICOM) << "C-FIND request handler has failed: " << e.What(); |
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307 } |
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308 |
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309 if (!ok) |
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310 { |
0 | 311 response->DimseStatus = STATUS_FIND_Failed_UnableToProcess; |
312 *responseIdentifiers = NULL; | |
313 return; | |
314 } | |
315 | |
316 data.lastRequest_ = requestIdentifiers; | |
317 } | |
318 else if (data.lastRequest_ != requestIdentifiers) | |
319 { | |
320 // Internal error! | |
321 response->DimseStatus = STATUS_FIND_Failed_UnableToProcess; | |
322 *responseIdentifiers = NULL; | |
323 return; | |
324 } | |
722 | 325 |
0 | 326 if (responseCount <= static_cast<int>(data.answers_.GetSize())) |
327 { | |
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328 // There are pending results that are still to be sent |
0 | 329 response->DimseStatus = STATUS_Pending; |
1789 | 330 *responseIdentifiers = data.answers_.ExtractDcmDataset(responseCount - 1); |
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331 |
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332 if (*responseIdentifiers) |
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333 { |
4288 | 334 std::stringstream s; // DcmObject::PrintHelper cannot be used with VS2008 |
335 (*responseIdentifiers)->print(s); | |
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336 OFString str; |
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337 CLOG(TRACE, DICOM) << "Sending C-FIND Response " |
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338 << responseCount << "/" << data.answers_.GetSize() << ":" << std::endl |
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339 << s.str(); |
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340 } |
0 | 341 } |
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342 else if (data.answers_.IsComplete()) |
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343 { |
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344 // Success: All the results have been sent |
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345 response->DimseStatus = STATUS_Success; |
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346 *responseIdentifiers = NULL; |
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347 } |
0 | 348 else |
349 { | |
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350 // Success, but the results were too numerous and had to be cropped |
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351 CLOG(WARNING, DICOM) << "Too many results for an incoming C-FIND query"; |
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352 response->DimseStatus = STATUS_FIND_Cancel_MatchingTerminatedDueToCancelRequest; |
0 | 353 *responseIdentifiers = NULL; |
354 } | |
355 } | |
356 } | |
357 | |
358 | |
359 OFCondition Internals::findScp(T_ASC_Association * assoc, | |
360 T_DIMSE_Message * msg, | |
361 T_ASC_PresentationContextID presID, | |
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362 DicomServer::IRemoteModalities& modalities, |
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363 IFindRequestHandler* findHandler, |
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364 IWorklistRequestHandler* worklistHandler, |
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365 const std::string& remoteIp, |
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366 const std::string& remoteAet, |
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367 const std::string& calledAet, |
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368 int timeout) |
0 | 369 { |
370 FindScpData data; | |
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371 data.modalities_ = &modalities; |
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372 data.findHandler_ = findHandler; |
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373 data.worklistHandler_ = worklistHandler; |
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374 data.lastRequest_ = NULL; |
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375 data.remoteIp_ = &remoteIp; |
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376 data.remoteAet_ = &remoteAet; |
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377 data.calledAet_ = &calledAet; |
0 | 378 |
379 OFCondition cond = DIMSE_findProvider(assoc, presID, &msg->msg.CFindRQ, | |
380 FindScpCallback, &data, | |
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381 /*opt_blockMode*/ (timeout ? DIMSE_NONBLOCKING : DIMSE_BLOCKING), |
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382 /*opt_dimse_timeout*/ timeout); |
0 | 383 |
384 // if some error occured, dump corresponding information and remove the outfile if necessary | |
385 if (cond.bad()) | |
386 { | |
387 OFString temp_str; | |
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388 CLOG(ERROR, DICOM) << "Find SCP Failed: " << cond.text(); |
0 | 389 } |
390 | |
391 return cond; | |
392 } | |
393 } |