import quincy 17.2.0

[ceph.git] / ceph / src / arrow / ruby / red-arrow / lib / arrow / record-batch.rb

diff --git a/ceph/src/arrow/ruby/red-arrow/lib/arrow/record-batch.rb b/ceph/src/arrow/ruby/red-arrow/lib/arrow/record-batch.rb
new file mode 100644 (file)
index 0000000..c5aaf87
--- /dev/null
+++ b/ceph/src/arrow/ruby/red-arrow/lib/arrow/record-batch.rb
@@ -0,0 +1,75 @@
+# 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 "arrow/raw-table-converter"
+
+module Arrow
+  class RecordBatch
+    include ColumnContainable
+    include RecordContainable
+    include Enumerable
+
+    class << self
+      def new(*args)
+        n_args = args.size
+        case n_args
+        when 1
+          raw_table_converter = RawTableConverter.new(args[0])
+          n_rows = raw_table_converter.n_rows
+          schema = raw_table_converter.schema
+          values = raw_table_converter.values
+          super(schema, n_rows, values)
+        when 2
+          schema, data = args
+          RecordBatchBuilder.build(schema, data)
+        when 3
+          super
+        else
+          message = "wrong number of arguments (given #{n_args}, expected 1..3)"
+          raise ArgumentError, message
+        end
+      end
+    end
+
+    alias_method :each, :each_record
+
+    alias_method :size, :n_rows
+    alias_method :length, :n_rows
+
+    # Converts the record batch to {Arrow::Table}.
+    #
+    # @return [Arrow::Table]
+    #
+    # @since 0.12.0
+    def to_table
+      Table.new(schema, [self])
+    end
+
+    def respond_to_missing?(name, include_private)
+      return true if find_column(name)
+      super
+    end
+
+    def method_missing(name, *args, &block)
+      if args.empty?
+        column = find_column(name)
+        return column if column
+      end
+      super
+    end
+  end
+end