Mercurial > hg > orthanc-databases
diff Framework/Common/ResultBase.cpp @ 0:7cea966b6829
initial commit
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 04 Jul 2018 08:16:29 +0200 |
parents | |
children | 714c5d2bee76 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Framework/Common/ResultBase.cpp Wed Jul 04 08:16:29 2018 +0200 @@ -0,0 +1,160 @@ +/** + * 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 Affero 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 + * Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + **/ + + +#include "ResultBase.h" + +#include "../Common/BinaryStringValue.h" +#include "../Common/Integer64Value.h" +#include "../Common/NullValue.h" +#include "../Common/Utf8StringValue.h" + +#include <Core/Logging.h> +#include <Core/OrthancException.h> + +#include <cassert> +#include <memory> + +namespace OrthancDatabases +{ + void ResultBase::ClearFields() + { + for (size_t i = 0; i < fields_.size(); i++) + { + if (fields_[i] != NULL) + { + delete fields_[i]; + fields_[i] = NULL; + } + } + } + + + void ResultBase::ConvertFields() + { + assert(expectedType_.size() == fields_.size() && + hasExpectedType_.size() == fields_.size()); + + for (size_t i = 0; i < fields_.size(); i++) + { + if (fields_[i] == NULL) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); + } + + ValueType sourceType = fields_[i]->GetType(); + ValueType targetType = expectedType_[i]; + + if (hasExpectedType_[i] && + sourceType != ValueType_Null && + sourceType != targetType) + { + std::auto_ptr<IValue> converted(fields_[i]->Convert(targetType)); + + if (converted.get() == NULL) + { + LOG(ERROR) << "Cannot convert between data types from a database"; + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadParameterType); + } + else + { + assert(fields_[i] != NULL); + delete fields_[i]; + fields_[i] = converted.release(); + } + } + } + } + + + void ResultBase::FetchFields() + { + ClearFields(); + + if (!IsDone()) + { + for (size_t i = 0; i < fields_.size(); i++) + { + fields_[i] = FetchField(i); + + if (fields_[i] == NULL) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); + } + } + + ConvertFields(); + } + } + + + void ResultBase::SetFieldsCount(size_t count) + { + if (!fields_.empty()) + { + // This method can only be invoked once + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); + } + + fields_.resize(count); + expectedType_.resize(count, ValueType_Null); + hasExpectedType_.resize(count, false); + } + + + void ResultBase::SetExpectedType(size_t field, + ValueType type) + { + assert(expectedType_.size() == fields_.size() && + hasExpectedType_.size() == fields_.size()); + + if (field < fields_.size()) + { + expectedType_[field] = type; + hasExpectedType_[field] = true; + + if (!IsDone()) + { + ConvertFields(); + } + } + } + + + const IValue& ResultBase::GetField(size_t index) const + { + if (IsDone()) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); + } + else if (index >= fields_.size()) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); + } + else if (fields_[index] == NULL) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); + } + else + { + return *fields_[index]; + } + } +}