Alexandria  2.16
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CatalogFromTable.cpp
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1 /*
2  * Copyright (C) 2012-2020 Euclid Science Ground Segment
3  *
4  * This library is free software; you can redistribute it and/or modify it under
5  * the terms of the GNU Lesser General Public License as published by the Free
6  * Software Foundation; either version 3.0 of the License, or (at your option)
7  * any later version.
8  *
9  * This library is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11  * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12  * details.
13  *
14  * You should have received a copy of the GNU Lesser General Public License
15  * along with this library; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
25 #include <vector>
28 #include "Table/ColumnInfo.h"
29 #include "Table/CastVisitor.h"
30 
31 using namespace std;
32 namespace Euclid {
33 namespace SourceCatalog {
34 
35 CatalogFromTable::CatalogFromTable(
36  std::shared_ptr<Euclid::Table::ColumnInfo> column_info_ptr,
37  const string& source_id_column_name,
38  std::vector<std::shared_ptr<AttributeFromRow>> attribute_from_row_ptr_vector) {
39 
40  unique_ptr<size_t> source_id_index_ptr = column_info_ptr->find(source_id_column_name);
41  if (source_id_index_ptr == nullptr) {
42  throw Elements::Exception() << "Column info does not have the column " << source_id_column_name;
43  }
44  m_source_id_index = *(source_id_index_ptr);
45 
46  m_attribute_from_row_ptr_vector = std::move(
47  attribute_from_row_ptr_vector);
48 }
49 
50 CatalogFromTable::~CatalogFromTable() {
51  // @todo Auto-generated destructor stub
52 }
53 
54 Euclid::SourceCatalog::Catalog CatalogFromTable::createCatalog(
55  const Euclid::Table::Table& input_table) {
56 
57  vector<Source> source_vector;
58 
59  // Figure out the type of the first row, and then assume all following
60  // must be of the same
61  CastSourceIdVisitor castVisitor;
62 
63  for (auto row : input_table) {
64 
65  auto source_id = boost::apply_visitor(castVisitor, row[m_source_id_index]);
66 
67  vector<shared_ptr<Attribute>> attribute_ptr_vector;
68 
69  for (auto& attribute_from_table_ptr : m_attribute_from_row_ptr_vector) {
70  attribute_ptr_vector.push_back(
71  attribute_from_table_ptr->createAttribute(row));
72  }
73 
74  source_vector.push_back(Source { source_id, move(attribute_ptr_vector) });
75  }
76 
77  return Catalog { source_vector };
78 }
79 
80 } // namespace SourceCatalog
81 } // end of namespace Euclid
This type can be used together with boost::apply_visitor to cast boost::variant with an unknown under...
Definition: Source.h:109
STL namespace.
Represents a table.
Definition: Table.h:49
The Source class includes all information related to a sky source.
Definition: Source.h:48
Catalog contains a container of sources.
Definition: Catalog.h:47