orthanc: OrthancServer/Search/DatabaseLookup.cpp comparison

comparison OrthancServer/Search/DatabaseLookup.cpp @ 2892:ce310baccda6 db-changes

DicomTagConstraint and DatabaseLookup

author	Sebastien Jodogne <s.jodogne@gmail.com>
date	Tue, 16 Oct 2018 18:00:05 +0200
parents
children	1723cbba55c7

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-:497a637366b4
+:ce310baccda6
+/**
+* Orthanc - A Lightweight, RESTful DICOM Store
+* Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+* Department, University Hospital of Liege, Belgium
+* Copyright (C) 2017-2018 Osimis S.A., Belgium
+*
+* This program is free software: you can redistribute it and/or
+* modify it under the terms of the GNU General Public License as
+* published by the Free Software Foundation, either version 3 of the
+* License, or (at your option) any later version.
+*
+* In addition, as a special exception, the copyright holders of this
+* program give permission to link the code of its release with the
+* OpenSSL project's "OpenSSL" library (or with modified versions of it
+* that use the same license as the "OpenSSL" library), and distribute
+* the linked executables. You must obey the GNU General Public License
+* in all respects for all of the code used other than "OpenSSL". If you
+* modify file(s) with this exception, you may extend this exception to
+* your version of the file(s), but you are not obligated to do so. If
+* you do not wish to do so, delete this exception statement from your
+* version. If you delete this exception statement from all source files
+* in the program, then also delete it here.
+*
+* This program is distributed in the hope that it will be useful, but
+* WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+* General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program. If not, see <http://www.gnu.org/licenses/>.
+**/
+#include "../PrecompiledHeadersServer.h"
+#include "DatabaseLookup.h"
+#include "../ServerToolbox.h"
+#include "../../Core/DicomParsing/FromDcmtkBridge.h"
+namespace Orthanc
+{
+void DatabaseLookup::LoadTags(ResourceType level)
+{
+const DicomTag* tags = NULL;
+size_t size;
+ServerToolbox::LoadIdentifiers(tags, size, level);
+for (size_t i = 0; i < size; i++)
+{
+assert(tags_.find(tags[i]) == tags_.end());
+tags_[tags[i]] = TagInfo(DicomTagType_Identifier, level);
+}
+DicomMap::LoadMainDicomTags(tags, size, level);
+for (size_t i = 0; i < size; i++)
+{
+if (tags_.find(tags[i]) == tags_.end())
+{
+tags_[tags[i]] = TagInfo(DicomTagType_Main, level);
+}
+}
+}
+DatabaseLookup::DatabaseLookup()
+{
+LoadTags(ResourceType_Patient);
+LoadTags(ResourceType_Study);
+LoadTags(ResourceType_Series);
+LoadTags(ResourceType_Instance);
+}
+DatabaseLookup::~DatabaseLookup()
+{
+for (size_t i = 0; i < constraints_.size(); i++)
+{
+assert(constraints_[i] != NULL);
+delete constraints_[i];
+}
+}
+const DicomTagConstraint& DatabaseLookup::GetConstraint(size_t index) const
+{
+if (index >= constraints_.size())
+{
+throw OrthancException(ErrorCode_ParameterOutOfRange);
+}
+else
+{
+assert(constraints_[index] != NULL);
+return *constraints_[index];
+}
+}
+void DatabaseLookup::AddConstraint(DicomTagConstraint* constraint)
+{
+if (constraint == NULL)
+{
+throw OrthancException(ErrorCode_NullPointer);
+}
+else
+{
+constraints_.push_back(constraint);
+std::map<DicomTag, TagInfo>::const_iterator tag = tags_.find(constraint->GetTag());
+if (tag == tags_.end())
+{
+constraint->SetTagInfo(DicomTagType_Generic, ResourceType_Instance);
+}
+else
+{
+constraint->SetTagInfo(tag->second.GetType(), tag->second.GetLevel());
+}
+}
+}
+bool DatabaseLookup::IsMatch(const DicomMap& value)
+{
+for (size_t i = 0; i < constraints_.size(); i++)
+{
+assert(constraints_[i] != NULL);
+if (!constraints_[i]->IsMatch(value))
+{
+return false;
+}
+}
+return true;
+}
+void DatabaseLookup::AddDicomConstraint(const DicomTag& tag,
+const std::string& dicomQuery,
+bool caseSensitivePN)
+{
+ValueRepresentation vr = FromDcmtkBridge::LookupValueRepresentation(tag);
+if (vr == ValueRepresentation_Sequence)
+{
+throw OrthancException(ErrorCode_ParameterOutOfRange);
+}
+/**
+* DICOM specifies that searches must always be case sensitive,
+* except for tags with a PN value representation. For PN, Orthanc
+* uses the configuration option "CaseSensitivePN" to decide
+* whether matching is case-sensitive or case-insensitive.
+*
+* Reference: DICOM PS 3.4
+*   - C.2.2.2.1 ("Single Value Matching")
+*   - C.2.2.2.4 ("Wild Card Matching")
+* http://medical.nema.org/Dicom/2011/11_04pu.pdf
+*
+* "Except for Attributes with a PN Value Representation, only
+* entities with values which match exactly the value specified in the
+* request shall match. This matching is case-sensitive, i.e.,
+* sensitive to the exact encoding of the key attribute value in
+* character sets where a letter may have multiple encodings (e.g.,
+* based on its case, its position in a word, or whether it is
+* accented)
+*
+* For Attributes with a PN Value Representation (e.g., Patient Name
+* (0010,0010)), an application may perform literal matching that is
+* either case-sensitive, or that is insensitive to some or all
+* aspects of case, position, accent, or other character encoding
+* variants."
+*
+* (0008,0018) UI SOPInstanceUID     => Case-sensitive
+* (0008,0050) SH AccessionNumber    => Case-sensitive
+* (0010,0020) LO PatientID          => Case-sensitive
+* (0020,000D) UI StudyInstanceUID   => Case-sensitive
+* (0020,000E) UI SeriesInstanceUID  => Case-sensitive
+**/
+bool caseSensitive = true;
+if (vr == ValueRepresentation_PersonName)
+{
+caseSensitive = caseSensitivePN;
+}
+if ((vr == ValueRepresentation_Date ||
+vr == ValueRepresentation_DateTime ||
+vr == ValueRepresentation_Time) &&
+dicomQuery.find('-') != std::string::npos)
+{
+/**
+* Range matching is only defined for TM, DA and DT value
+* representations. This code fixes issues 35 and 37.
+*
+* Reference: "Range matching is not defined for types of
+* Attributes other than dates and times", DICOM PS 3.4,
+* C.2.2.2.5 ("Range Matching").
+**/
+size_t separator = dicomQuery.find('-');
+std::string lower = dicomQuery.substr(0, separator);
+std::string upper = dicomQuery.substr(separator + 1);
+if (!lower.empty())
+{
+AddConstraint(new DicomTagConstraint
+(tag, ConstraintType_GreaterOrEqual, lower, caseSensitive));
+}
+if (!upper.empty())
+{
+AddConstraint(new DicomTagConstraint
+(tag, ConstraintType_SmallerOrEqual, upper, caseSensitive));
+}
+}
+else if (dicomQuery.find('\\') != std::string::npos)
+{
+DicomTag fixedTag(tag);
+if (tag == DICOM_TAG_MODALITIES_IN_STUDY)
+{
+// http://www.itk.org/Wiki/DICOM_QueryRetrieve_Explained
+// http://dicomiseasy.blogspot.be/2012/01/dicom-queryretrieve-part-i.html
+fixedTag = DICOM_TAG_MODALITY;
+}
+std::auto_ptr<DicomTagConstraint> constraint
+(new DicomTagConstraint(fixedTag, ConstraintType_List, caseSensitive));
+std::vector<std::string> items;
+Toolbox::TokenizeString(items, dicomQuery, '\\');
+for (size_t i = 0; i < items.size(); i++)
+{
+constraint->AddValue(items[i]);
+}
+AddConstraint(constraint.release());
+}
+else if (dicomQuery.find('*') != std::string::npos ||
+dicomQuery.find('?') != std::string::npos)
+{
+AddConstraint(new DicomTagConstraint
+(tag, ConstraintType_Wildcard, dicomQuery, caseSensitive));
+}
+else
+{
+AddConstraint(new DicomTagConstraint
+(tag, ConstraintType_Equal, dicomQuery, caseSensitive));
+}
+}
+}

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comparison OrthancServer/Search/DatabaseLookup.cpp @ 2892:ce310baccda6 db-changes