Mercurial > hg > orthanc
view OrthancFramework/Sources/DicomFormat/DicomValue.cpp @ 4377:4770ac7287ec
integration varian->mainline
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 17 Dec 2020 11:42:48 +0100 |
parents | 50b0c69b653a |
children | d9473bd5ed43 |
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/** * 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 Lesser General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/>. **/ #include "../PrecompiledHeaders.h" #include "DicomValue.h" #include "../OrthancException.h" #include "../SerializationToolbox.h" #include "../Toolbox.h" #include <boost/lexical_cast.hpp> namespace Orthanc { DicomValue::DicomValue() : type_(Type_Null) { } DicomValue::DicomValue(const DicomValue& other) : type_(other.type_), content_(other.content_) { } DicomValue::DicomValue(const std::string& content, bool isBinary) : type_(isBinary ? Type_Binary : Type_String), content_(content) { } DicomValue::DicomValue(const char* data, size_t size, bool isBinary) : type_(isBinary ? Type_Binary : Type_String) { content_.assign(data, size); } const std::string& DicomValue::GetContent() const { if (type_ == Type_Null) { throw OrthancException(ErrorCode_BadParameterType); } else { return content_; } } bool DicomValue::IsNull() const { return type_ == Type_Null; } bool DicomValue::IsBinary() const { return type_ == Type_Binary; } DicomValue* DicomValue::Clone() const { return new DicomValue(*this); } #if ORTHANC_ENABLE_BASE64 == 1 void DicomValue::FormatDataUriScheme(std::string& target, const std::string& mime) const { Toolbox::EncodeBase64(target, GetContent()); target.insert(0, "data:" + mime + ";base64,"); } void DicomValue::FormatDataUriScheme(std::string& target) const { FormatDataUriScheme(target, MIME_BINARY); } #endif // same as ParseValue but in case the value actually contains a sequence, // it will return the first value // this has been introduced to support invalid "width/height" DICOM tags in some US // images where the width is stored as "800\0" ! template <typename T, bool allowSigned> static bool ParseFirstValue(T& result, const DicomValue& source) { if (source.IsBinary() || source.IsNull()) { return false; } try { std::string value = Toolbox::StripSpaces(source.GetContent()); if (value.empty()) { return false; } if (!allowSigned && value[0] == '-') { return false; } if (value.find("\\") == std::string::npos) { result = boost::lexical_cast<T>(value); return true; } else { std::vector<std::string> tokens; Toolbox::TokenizeString(tokens, value, '\\'); if (tokens.size() >= 1) { result = boost::lexical_cast<T>(tokens[0]); return true; } return false; } } catch (boost::bad_lexical_cast&) { return false; } } template <typename T, bool allowSigned> static bool ParseValue(T& result, const DicomValue& source) { if (source.IsBinary() || source.IsNull()) { return false; } try { std::string value = Toolbox::StripSpaces(source.GetContent()); if (value.empty()) { return false; } if (!allowSigned && value[0] == '-') { return false; } result = boost::lexical_cast<T>(value); return true; } catch (boost::bad_lexical_cast&) { return false; } } bool DicomValue::ParseInteger32(int32_t& result) const { int64_t tmp; if (ParseValue<int64_t, true>(tmp, *this)) { result = static_cast<int32_t>(tmp); return (tmp == static_cast<int64_t>(result)); // Check no overflow occurs } else { return false; } } bool DicomValue::ParseInteger64(int64_t& result) const { return ParseValue<int64_t, true>(result, *this); } bool DicomValue::ParseUnsignedInteger32(uint32_t& result) const { uint64_t tmp; if (ParseValue<uint64_t, false>(tmp, *this)) { result = static_cast<uint32_t>(tmp); return (tmp == static_cast<uint64_t>(result)); // Check no overflow occurs } else { return false; } } bool DicomValue::ParseUnsignedInteger64(uint64_t& result) const { return ParseValue<uint64_t, false>(result, *this); } bool DicomValue::ParseFloat(float& result) const { return ParseValue<float, true>(result, *this); } bool DicomValue::ParseDouble(double& result) const { return ParseValue<double, true>(result, *this); } bool DicomValue::ParseFirstFloat(float& result) const { return ParseFirstValue<float, true>(result, *this); } bool DicomValue::ParseFirstUnsignedInteger(unsigned int& result) const { return ParseFirstValue<unsigned int, true>(result, *this); } bool DicomValue::CopyToString(std::string& result, bool allowBinary) const { if (IsNull()) { return false; } else if (IsBinary() && !allowBinary) { return false; } else { result.assign(content_); return true; } } static const char* KEY_TYPE = "Type"; static const char* KEY_CONTENT = "Content"; void DicomValue::Serialize(Json::Value& target) const { target = Json::objectValue; switch (type_) { case Type_Null: target[KEY_TYPE] = "Null"; break; case Type_String: target[KEY_TYPE] = "String"; target[KEY_CONTENT] = content_; break; case Type_Binary: { target[KEY_TYPE] = "Binary"; std::string base64; Toolbox::EncodeBase64(base64, content_); target[KEY_CONTENT] = base64; break; } default: throw OrthancException(ErrorCode_InternalError); } } void DicomValue::Unserialize(const Json::Value& source) { std::string type = SerializationToolbox::ReadString(source, KEY_TYPE); if (type == "Null") { type_ = Type_Null; content_.clear(); } else if (type == "String") { type_ = Type_String; content_ = SerializationToolbox::ReadString(source, KEY_CONTENT); } else if (type == "Binary") { type_ = Type_Binary; const std::string base64 =SerializationToolbox::ReadString(source, KEY_CONTENT); Toolbox::DecodeBase64(content_, base64); } else { throw OrthancException(ErrorCode_BadFileFormat); } } }