import quincy 17.2.0

[ceph.git] / ceph / src / arrow / go / arrow / internal / arrjson / option.go

diff --git a/ceph/src/arrow/go/arrow/internal/arrjson/option.go b/ceph/src/arrow/go/arrow/internal/arrjson/option.go
new file mode 100644 (file)
index 0000000..5bd1888
--- /dev/null
+++ b/ceph/src/arrow/go/arrow/internal/arrjson/option.go
@@ -0,0 +1,57 @@
+// 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.
+
+package arrjson // import "github.com/apache/arrow/go/v6/arrow/internal/arrjson"
+
+import (
+       "github.com/apache/arrow/go/v6/arrow"
+       "github.com/apache/arrow/go/v6/arrow/memory"
+)
+
+type config struct {
+       alloc  memory.Allocator
+       schema *arrow.Schema
+}
+
+func newConfig(opts ...Option) *config {
+       cfg := &config{
+               alloc: memory.NewGoAllocator(),
+       }
+
+       for _, opt := range opts {
+               opt(cfg)
+       }
+
+       return cfg
+}
+
+// Option is a functional option to configure opening or creating Arrow files
+// and streams.
+type Option func(*config)
+
+// WithAllocator specifies the Arrow memory allocator used while building records.
+func WithAllocator(mem memory.Allocator) Option {
+       return func(cfg *config) {
+               cfg.alloc = mem
+       }
+}
+
+// WithSchema specifies the Arrow schema to be used for reading or writing.
+func WithSchema(schema *arrow.Schema) Option {
+       return func(cfg *config) {
+               cfg.schema = schema
+       }
+}