Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 47 insertions, 0 deletions

diff --git a/src/arrow/c_glib/test/helper/readable.rb b/src/arrow/c_glib/test/helper/readable.rb
new file mode 100644
index 000000000..81bf0795c
--- /dev/null
+++ b/src/arrow/c_glib/test/helper/readable.rb
@@ -0,0 +1,47 @@
+# 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 Helper
+  module Readable
+    def read_table(input, type: :file)
+      if input.is_a?(Arrow::Buffer)
+        input_stream = Arrow::BufferIntputStream.new(input)
+      else
+        input_stream = Arrow::FileInputStream.new(input)
+      end
+      begin
+        if type == :file
+          reader = Arrow::RecordBatchFileReader.new(input_stream)
+          record_batches = []
+          reader.n_record_batches.times do |i|
+            record_batches << reader.read_record_batch(i)
+          end
+          yield(Arrow::Table.new(record_batches[0].schema, record_batches))
+        else
+          reader = Arrow::RecordBatchStreamReader.new(input_stream)
+          begin
+            yield(reader.read_all)
+          ensure
+            reader.close
+          end
+        end
+      ensure
+        input_stream.close
+      end
+    end
+  end
+end