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// 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 util
import (
"github.com/apache/arrow-go/v18/arrow"
"github.com/apache/arrow-go/v18/arrow/array"
"github.com/apache/arrow-go/v18/arrow/memory"
)
func isArrayDataNil(arrayData arrow.ArrayData) bool {
if arrayData == nil {
return true
}
if v, ok := arrayData.(*array.Data); ok {
return v == nil
}
panic("unknown ArrayData type")
}
func totalArrayDataSize(arrayData arrow.ArrayData, seenBuffers map[*memory.Buffer]struct{}) int64 {
var sum int64
var void = struct{}{}
for _, buf := range arrayData.Buffers() {
if buf == nil {
continue
}
if _, ok := seenBuffers[buf]; !ok {
sum += int64(buf.Len())
seenBuffers[buf] = void
}
}
for _, child := range arrayData.Children() {
sum += totalArrayDataSize(child, seenBuffers)
}
dict := arrayData.Dictionary()
if !isArrayDataNil(dict) {
sum += totalArrayDataSize(dict, seenBuffers)
}
return sum
}
func totalArraySize(arr arrow.Array, seenBuffers map[*memory.Buffer]struct{}) int64 {
return totalArrayDataSize(arr.Data(), seenBuffers)
}
func totalRecordSize(record arrow.Record, seenBuffers map[*memory.Buffer]struct{}) int64 {
var sum int64
for _, c := range record.Columns() {
sum += totalArraySize(c, seenBuffers)
}
return sum
}
// TotalArraySize returns the sum of the number of bytes in each buffer referenced by the Array.
func TotalArraySize(arr arrow.Array) int64 {
seenBuffer := make(map[*memory.Buffer]struct{})
return totalArraySize(arr, seenBuffer)
}
// TotalRecordSize return the sum of bytes in each buffer referenced by the Record.
func TotalRecordSize(record arrow.Record) int64 {
seenBuffer := make(map[*memory.Buffer]struct{})
return totalRecordSize(record, seenBuffer)
}
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