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Delete old inefficient code, add some more checks upon dictionary creation

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This commit is contained in:
Andrei Chulkov 2020-01-15 18:47:41 +03:00
parent a4fefc7a45
commit 1d68725814
1 changed files with 11 additions and 65 deletions
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76
dbms/src/Dictionaries/PolygonDictionary.cpp
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@ -522,69 +522,6 @@ void IPolygonDictionary::extractMultiPolygons(const ColumnPtr &column, std::vect
bg::correct(multi_polygon);
}
IPolygonDictionary::Point IPolygonDictionary::fieldToPoint(const Field &field)
{
if (field.getType() == Field::Types::Array)
{
auto coordinate_array = field.get<Array>();
if (coordinate_array.size() != DIM)
throw Exception{"All points should be " + std::to_string(DIM) + "-dimensional", ErrorCodes::BAD_ARGUMENTS};
Float64 values[DIM];
for (size_t i = 0; i < DIM; ++i)
{
if (coordinate_array[i].getType() != Field::Types::Float64)
throw Exception{"Coordinates should be Float64", ErrorCodes::TYPE_MISMATCH};
values[i] = coordinate_array[i].get<Float64>();
}
return {values[0], values[1]};
}
else
throw Exception{"Point is not represented by an array", ErrorCodes::TYPE_MISMATCH};
}
IPolygonDictionary::Polygon IPolygonDictionary::fieldToPolygon(const Field & field)
{
Polygon result;
if (field.getType() == Field::Types::Array)
{
const auto & ring_array = field.get<Array>();
if (ring_array.empty())
throw Exception{"Empty polygons are not allowed", ErrorCodes::BAD_ARGUMENTS};
result.inners().resize(ring_array.size() - 1);
if (ring_array[0].getType() != Field::Types::Array)
throw Exception{"Outer polygon ring is not represented by an array", ErrorCodes::TYPE_MISMATCH};
for (const auto & point : ring_array[0].get<Array>())
bg::append(result.outer(), fieldToPoint(point));
for (size_t i = 0; i < result.inners().size(); ++i)
{
if (ring_array[i + 1].getType() != Field::Types::Array)
throw Exception{"Inner polygon ring is not represented by an array", ErrorCodes::TYPE_MISMATCH};
for (const auto & point : ring_array[i + 1].get<Array>())
bg::append(result.inners()[i], fieldToPoint(point));
}
}
else
throw Exception{"Polygon is not represented by an array", ErrorCodes::TYPE_MISMATCH};
bg::correct(result);
return result;
}
// TODO: Do this more efficiently by casting to the corresponding Column and avoiding Fields.
IPolygonDictionary::MultiPolygon IPolygonDictionary::fieldToMultiPolygon(const Field &field)
{
MultiPolygon result;
if (field.getType() == Field::Types::Array)
{
const auto& polygon_array = field.get<Array>();
result.reserve(polygon_array.size());
for (const auto & polygon : polygon_array)
result.push_back(fieldToPolygon(polygon));
}
else
throw Exception{"MultiPolygon is not represented by an array", ErrorCodes::TYPE_MISMATCH};
return result;
}
SimplePolygonDictionary::SimplePolygonDictionary(
const std::string & database_,
const std::string & name_,
@ -636,11 +573,20 @@ void registerDictionaryPolygon(DictionaryFactory & factory)
const String database = config.getString(config_prefix + ".database", "");
const String name = config.getString(config_prefix + ".name");
// TODO: Check that there is only one key and it is of the correct type.
if (!dict_struct.key)
throw Exception{"'key' is required for dictionary of layout 'polygon'", ErrorCodes::BAD_ARGUMENTS};
if (dict_struct.key->size() != 1)
throw Exception{"The 'key' should consist of a single attribute for dictionary of layout 'polygon'",
ErrorCodes::BAD_ARGUMENTS};
// TODO: Once arrays are fully supported this should be changed to a more reasonable check.
if ((*dict_struct.key)[0].type->getName() != "Array(Array(Array(Array(Float64))))")
throw Exception{"The 'key' should be a 4-dimensional array of Float64 for dictionary of layout 'polygon'",
ErrorCodes::BAD_ARGUMENTS};
if (dict_struct.range_min || dict_struct.range_max)
throw Exception{name
+ ": elements .structure.range_min and .structure.range_max should be defined only "
"for a dictionary of layout 'range_hashed'",
"for a dictionary of layout 'polygon'",
ErrorCodes::BAD_ARGUMENTS};
const DictionaryLifetime dict_lifetime{config, config_prefix + ".lifetime"};