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/*=========================================================================
*
* Copyright UMC Utrecht and contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include "elxComponentLoader.h"
#include "elxSupportedImageTypes.h"
#include "elxInstallFunctions.h"
#include "elxMacro.h"
#include "elxInstallAllComponents.h"
// ITKFactoryRegistration headers:
#include <itkImageIOFactoryRegisterManager.h>
#include <itkMeshIOFactoryRegisterManager.h>
#include <itkTransformIOFactoryRegisterManager.h>
#include <iostream>
#include <string>
#include <tuple>
namespace elastix
{
/**
* Definition of class template, needed in InstallSupportedImageTypes()
*/
/** Define a class<N> with a method DO(...) that calls class<N+1>::DO(...) */
template <ComponentDatabase::IndexType VIndex>
class _installsupportedimagesrecursively
{
public:
/** ElastixTypedef is defined in elxSupportedImageTypes.h, by means of the
* the elxSupportedImageTypesMacro */
using ET = ElastixTypedef<VIndex>;
using ElastixType = typename ET::ElastixType;
using ComponentDescriptionType = ComponentDatabase::ComponentDescriptionType;
static int
DO(const ComponentDescriptionType & name, ComponentDatabase * cdb)
{
int dummy1 = InstallFunctions<ElastixType>::InstallComponent(name, VIndex, cdb);
int dummy2 = cdb->SetIndex(
ET::FixedPixelTypeString, ET::FixedDimension, ET::MovingPixelTypeString, ET::MovingDimension, VIndex);
if (ElastixTypedef<VIndex + 1>::IsDefined)
{
return _installsupportedimagesrecursively<VIndex + 1>::DO(name, cdb);
}
return (dummy1 + dummy2);
}
};
// end template class
/** To prevent an infinite loop, DO() does nothing in class<lastImageTypeCombination> */
template <>
class _installsupportedimagesrecursively<NrOfSupportedImageTypes + 1>
{
public:
using ComponentDescriptionType = ComponentDatabase::ComponentDescriptionType;
static int
DO(const ComponentDescriptionType & /** name */, ComponentDatabase * /** cdb */)
{
return 0;
}
};
// end template class specialization
/**
* ****************** Constructor ********************************
*/
ComponentLoader::ComponentLoader()
{
this->m_ImageTypeSupportInstalled = false;
}
/**
* ****************** Destructor *********************************
*/
ComponentLoader::~ComponentLoader() = default;
/**
* *************** InstallSupportedImageTypes ********************
*/
int
ComponentLoader::InstallSupportedImageTypes()
{
/**
* Method: A recursive template was defined at the top of this file, that
* installs support for all combinations of ImageTypes defined in
* elxSupportedImageTypes.h
*
* Result: The VIndices are stored in the elx::ComponentDatabase::IndexMap.
* The New() functions of ElastixTemplate<> in the
* elx::ComponentDatabase::CreatorMap, with key "Elastix".
*/
/** Call class<1>::DO(...) */
int _InstallDummy_SupportedImageTypes =
_installsupportedimagesrecursively<1>::DO("Elastix", this->m_ComponentDatabase);
if (_InstallDummy_SupportedImageTypes == 0)
{
this->m_ImageTypeSupportInstalled = true;
}
return _InstallDummy_SupportedImageTypes;
} // end InstallSupportedImageTypes
/**
* ****************** LoadComponents *****************************
*/
int
ComponentLoader::LoadComponents()
{
// Retrieve those IOFactoryRegisterManager instances, just to ensure that they are really constructed.
const volatile auto ioFactoryRegisterManagerInstances =
std::make_tuple(itk::ImageIOFactoryRegisterManagerInstance,
itk::MeshIOFactoryRegisterManagerInstance,
itk::TransformIOFactoryRegisterManagerInstance);
(void)ioFactoryRegisterManagerInstances;
int installReturnCode = 0;
/** Generate the mapping between indices and image types */
if (!this->m_ImageTypeSupportInstalled)
{
installReturnCode = this->InstallSupportedImageTypes();
if (installReturnCode != 0)
{
log::error("ERROR: ImageTypeSupport installation failed. ");
return installReturnCode;
}
} // end if !ImageTypeSupportInstalled
log::info("Installing all components.");
/** Fill the component database */
installReturnCode = InstallAllComponents(this->m_ComponentDatabase);
if (installReturnCode)
{
log::error("ERROR: Installing of at least one of components failed.");
return installReturnCode;
}
log::info("InstallingComponents was successful.\n");
return 0;
} // end LoadComponents
} // end namespace elastix
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