1 files changed, 59 insertions, 0 deletions
diff --git a/src/arrow/ruby/red-arrow-dataset/lib/arrow-dataset/file-format.rb b/src/arrow/ruby/red-arrow-dataset/lib/arrow-dataset/file-format.rb
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+++ b/src/arrow/ruby/red-arrow-dataset/lib/arrow-dataset/file-format.rb
@@ -0,0 +1,59 @@
+# 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