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/*
* Copyright (C) 2005-2022 Centre National d'Etudes Spatiales (CNES)
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* 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
*
* 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.
*/
#ifndef otbMetadataSupplierInterface_hxx
#define otbMetadataSupplierInterface_hxx
#include "otbMetadataSupplierInterface.h"
namespace otb
{
template <typename T> T MetadataSupplierInterface::GetAs(T const& defaultValue, std::string const& path, int band) const
{
bool hasValue;
std::string ret = GetMetadataValue(path, hasValue, band);
if (!hasValue)
{
return defaultValue;
}
boost::trim(ret);
try
{
return boost::lexical_cast<T>(ret);
}
catch (boost::bad_lexical_cast&)
{
return defaultValue;
}
}
template <typename T> T MetadataSupplierInterface::GetAs(std::string const& path, int band) const
{
bool hasValue;
std::string ret = GetMetadataValue(path, hasValue, band);
if (!hasValue)
{
otbGenericExceptionMacro(MissingMetadataException,<<"Missing metadata '"<<path<<"'")
}
boost::trim(ret);
try
{
return boost::lexical_cast<T>(ret);
}
catch (boost::bad_lexical_cast&)
{
otbGenericExceptionMacro(MissingMetadataException,<<"Bad metadata value for '"<<path<<"', got: "<<ret)
}
}
template < typename T> std::vector<T> MetadataSupplierInterface::GetAsVector(std::string const& path, char sep, int size, int band) const
{
bool hasValue;
std::string ret = GetMetadataValue(path, hasValue, band);
if (!hasValue)
{
otbGenericExceptionMacro(MissingMetadataException,<<"Missing metadata '"<<path<<"'")
}
string_view value(ret);
string_view filt_value = rstrip(lstrip(value,"[ "), "] ");
std::vector<T> output;
typedef part_range<splitter_on_delim> range_type;
const range_type parts = split_on(filt_value, sep);
for (auto const& part : parts)
{
// TODO: check if we can use lexical_cast on a string_view
std::string strPart = to<std::string>(part, "casting string_view to std::string");
if (strPart.empty())
{
continue;
}
try
{
output.push_back(boost::lexical_cast<T>(strPart));
}
catch (boost::bad_lexical_cast&)
{
otbGenericExceptionMacro(MissingMetadataException,<<"Bad metadata vector element in '"<<path<<"', got :"<<part)
}
}
if ((size >= 0) && (output.size() != (size_t)size))
{
otbGenericExceptionMacro(MissingMetadataException,<<"Bad number of elements in vector '"<<path<<"', expected "<<size<< ", got "<<output.size())
}
return output;
}
} // end namespace otb
#endif
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