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Diffstat (limited to '')
-rw-r--r-- | src/arrow/ruby/red-arrow/lib/arrow/table-table-formatter.rb | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/arrow/ruby/red-arrow/lib/arrow/table-table-formatter.rb b/src/arrow/ruby/red-arrow/lib/arrow/table-table-formatter.rb new file mode 100644 index 000000000..36121e1b6 --- /dev/null +++ b/src/arrow/ruby/red-arrow/lib/arrow/table-table-formatter.rb @@ -0,0 +1,49 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you 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. + +require "time" + +module Arrow + # TODO: Almost codes should be implemented in Apache Arrow C++. + class TableTableFormatter < TableFormatter + private + def format_header(text, column_formatters) + column_formatters.each do |column_formatter| + text << "\t" + text << column_formatter.aligned_name + end + text << "\n" + end + + def format_rows(text, column_formatters, rows, n_digits, start_offset) + rows.each_with_index do |row, nth_row| + text << ("%*d" % [n_digits, start_offset + nth_row]) + row.each_with_index do |column_value, nth_column| + text << "\t" + column_formatter = column_formatters[nth_column] + aligned_name = column_formatter.aligned_name + text << column_formatter.format_value(column_value, aligned_name.size) + end + text << "\n" + end + end + + def format_ellipsis(text) + text << "...\n" + end + end +end |