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# 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.
module ArrowDataset
class FileFormat
class << self
def resolve(format)
case format
when :arrow, :arrow_file, :arrow_streaming
IPCFileFormat.new
when :parquet
ParquetFileFormat.new
when :csv
CSVFileFormat.new
else
available_formats = [
:arrow,
:arrow_file,
:arrow_streaming,
:parquet,
:csv,
]
message = "Arrow::Table load format must be one of ["
message << available_formats.join(", ")
message << "]: #{@options[:format].inspect}"
raise ArgumentError, message
end
end
end
alias_method :open_writer_raw, :open_writer
def open_writer(destination, file_system, path, schema, options)
writer = open_writer_raw(destination, file_system, path, schema, options)
if block_given?
begin
yield(writer)
ensure
writer.finish
end
else
writer
end
end
end
end
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