orthanc: OrthancServer/Sources/Search/DatabaseLookup.cpp comparison

comparison OrthancServer/Sources/Search/DatabaseLookup.cpp @ 4044:d25f4c0fa160 framework

splitting code into OrthancFramework and OrthancServer

author	Sebastien Jodogne <s.jodogne@gmail.com>
date	Wed, 10 Jun 2020 20:30:34 +0200
parents	OrthancServer/Search/DatabaseLookup.cpp@2a170a8f1faf
children	05b8fd21089c

comparison

equal deleted inserted replaced

-:6c6239aec462
+:d25f4c0fa160
+/**
+* Orthanc - A Lightweight, RESTful DICOM Store
+* Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+* Department, University Hospital of Liege, Belgium
+* Copyright (C) 2017-2020 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"
+#include "../../Core/DicomParsing/ToDcmtkBridge.h"
+#include "../../Core/OrthancException.h"
+#include "../../Core/Toolbox.h"
+namespace Orthanc
+{
+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);
+}
+}
+bool DatabaseLookup::IsMatch(const DicomMap& value) const
+{
+for (size_t i = 0; i < constraints_.size(); i++)
+{
+assert(constraints_[i] != NULL);
+if (!constraints_[i]->IsMatch(value))
+{
+return false;
+}
+}
+return true;
+}
+bool DatabaseLookup::IsMatch(DcmItem& item,
+Encoding encoding,
+bool hasCodeExtensions) const
+{
+for (size_t i = 0; i < constraints_.size(); i++)
+{
+assert(constraints_[i] != NULL);
+const bool isOptionalConstraint = !constraints_[i]->IsMandatory();
+const DcmTagKey tag = ToDcmtkBridge::Convert(constraints_[i]->GetTag());
+DcmElement* element = NULL;
+if (!item.findAndGetElement(tag, element).good())
+{
+return isOptionalConstraint;
+}
+if (element == NULL)
+{
+return false;
+}
+std::set<DicomTag> ignoreTagLength;
+std::unique_ptr<DicomValue> value(FromDcmtkBridge::ConvertLeafElement
+(*element, DicomToJsonFlags_None,
+0, encoding, hasCodeExtensions, ignoreTagLength));
+// WARNING: Also modify "HierarchicalMatcher::Setup()" if modifying this code
+if (value.get() == NULL ||
+value->IsNull())
+{
+return isOptionalConstraint;
+}
+else if (value->IsBinary() ||
+!constraints_[i]->IsMatch(value->GetContent()))
+{
+return false;
+}
+}
+return true;
+}
+void DatabaseLookup::AddDicomConstraintInternal(const DicomTag& tag,
+ValueRepresentation vr,
+const std::string& dicomQuery,
+bool caseSensitive,
+bool mandatoryTag)
+{
+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, mandatoryTag));
+}
+if (!upper.empty())
+{
+AddConstraint(new DicomTagConstraint
+(tag, ConstraintType_SmallerOrEqual, upper, caseSensitive, mandatoryTag));
+}
+}
+else if (tag == DICOM_TAG_MODALITIES_IN_STUDY ||
+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::unique_ptr<DicomTagConstraint> constraint
+(new DicomTagConstraint(fixedTag, ConstraintType_List, caseSensitive, mandatoryTag));
+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 (
+/**
+* New test in Orthanc 1.6.0: Wild card matching is only allowed
+* for a subset of value representations: AE, CS, LO, LT, PN,
+* SH, ST, UC, UR, UT.
+* http://dicom.nema.org/medical/dicom/2019e/output/chtml/part04/sect_C.2.2.2.4.html
+**/
+(vr == ValueRepresentation_ApplicationEntity ||    // AE
+vr == ValueRepresentation_CodeString ||           // CS
+vr == ValueRepresentation_LongString ||           // LO
+vr == ValueRepresentation_LongText ||             // LT
+vr == ValueRepresentation_PersonName ||           // PN
+vr == ValueRepresentation_ShortString ||          // SH
+vr == ValueRepresentation_ShortText ||            // ST
+vr == ValueRepresentation_UnlimitedCharacters ||  // UC
+vr == ValueRepresentation_UniversalResource ||    // UR
+vr == ValueRepresentation_UnlimitedText           // UT
+) &&
+(dicomQuery.find('*') != std::string::npos ||
+dicomQuery.find('?') != std::string::npos))
+{
+AddConstraint(new DicomTagConstraint
+(tag, ConstraintType_Wildcard, dicomQuery, caseSensitive, mandatoryTag));
+}
+else
+{
+AddConstraint(new DicomTagConstraint
+(tag, ConstraintType_Equal, dicomQuery, caseSensitive, mandatoryTag));
+}
+}
+void DatabaseLookup::AddDicomConstraint(const DicomTag& tag,
+const std::string& dicomQuery,
+bool caseSensitivePN,
+bool mandatoryTag)
+{
+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
+**/
+if (vr == ValueRepresentation_PersonName)
+{
+AddDicomConstraintInternal(tag, vr, dicomQuery, caseSensitivePN, mandatoryTag);
+}
+else
+{
+AddDicomConstraintInternal(tag, vr, dicomQuery, true /* case sensitive */, mandatoryTag);
+}
+}
+void DatabaseLookup::AddRestConstraint(const DicomTag& tag,
+const std::string& dicomQuery,
+bool caseSensitive,
+bool mandatoryTag)
+{
+AddDicomConstraintInternal(tag, FromDcmtkBridge::LookupValueRepresentation(tag),
+dicomQuery, caseSensitive, mandatoryTag);
+}
+bool DatabaseLookup::HasOnlyMainDicomTags() const
+{
+std::set<DicomTag> mainTags;
+DicomMap::GetMainDicomTags(mainTags);
+for (size_t i = 0; i < constraints_.size(); i++)
+{
+assert(constraints_[i] != NULL);
+if (mainTags.find(constraints_[i]->GetTag()) == mainTags.end())
+{
+// This is not a main DICOM tag
+return false;
+}
+}
+return true;
+}
+}

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comparison OrthancServer/Sources/Search/DatabaseLookup.cpp @ 4044:d25f4c0fa160 framework