import quincy 17.2.0

[ceph.git] / ceph / src / arrow / ruby / red-arrow / lib / arrow / generic-filterable.rb

diff --git a/ceph/src/arrow/ruby/red-arrow/lib/arrow/generic-filterable.rb b/ceph/src/arrow/ruby/red-arrow/lib/arrow/generic-filterable.rb
new file mode 100644 (file)
index 0000000..50a7914
--- /dev/null
+++ b/ceph/src/arrow/ruby/red-arrow/lib/arrow/generic-filterable.rb
@@ -0,0 +1,43 @@
+# 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 Arrow
+  module GenericFilterable
+    class << self
+      def included(base)
+        base.__send__(:alias_method, :filter_raw, :filter)
+        base.__send__(:alias_method, :filter, :filter_generic)
+      end
+    end
+
+    def filter_generic(filter, options=nil)
+      case filter
+      when ::Array
+        filter_raw(BooleanArray.new(filter), options)
+      when ChunkedArray
+        if respond_to?(:filter_chunked_array)
+          filter_chunked_array(filter, options)
+        else
+          # TODO: Implement this in C++
+          filter_raw(filter.pack, options)
+        end
+      else
+        filter_raw(filter, options)
+      end
+    end
+  end
+end