/
filter.gen.go
118 lines (103 loc) · 2.58 KB
/
filter.gen.go
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// Generated by tmpl
// https://github.com/benbjohnson/tmpl
//
// DO NOT EDIT!
// Source: filter.gen.go.tmpl
package arrowutil
import (
"fmt"
"github.com/apache/arrow/go/v7/arrow/bitutil"
"github.com/apache/arrow/go/v7/arrow/memory"
"github.com/influxdata/flux/array"
)
func Filter(arr array.Array, bitset []byte, mem memory.Allocator) array.Array {
switch arr := arr.(type) {
case *array.Int:
return FilterInts(arr, bitset, mem)
case *array.Uint:
return FilterUints(arr, bitset, mem)
case *array.Float:
return FilterFloats(arr, bitset, mem)
case *array.Boolean:
return FilterBooleans(arr, bitset, mem)
case *array.String:
return FilterStrings(arr, bitset, mem)
default:
panic(fmt.Errorf("unsupported array data type: %s", arr.DataType()))
}
}
func FilterInts(arr *array.Int, bitset []byte, mem memory.Allocator) *array.Int {
n := bitutil.CountSetBits(bitset, 0, len(bitset))
b := NewIntBuilder(mem)
b.Resize(n)
for i := 0; i < len(bitset); i++ {
if bitutil.BitIsSet(bitset, i) {
if arr.IsValid(i) {
b.Append(arr.Value(i))
} else {
b.AppendNull()
}
}
}
return b.NewIntArray()
}
func FilterUints(arr *array.Uint, bitset []byte, mem memory.Allocator) *array.Uint {
n := bitutil.CountSetBits(bitset, 0, len(bitset))
b := NewUintBuilder(mem)
b.Resize(n)
for i := 0; i < len(bitset); i++ {
if bitutil.BitIsSet(bitset, i) {
if arr.IsValid(i) {
b.Append(arr.Value(i))
} else {
b.AppendNull()
}
}
}
return b.NewUintArray()
}
func FilterFloats(arr *array.Float, bitset []byte, mem memory.Allocator) *array.Float {
n := bitutil.CountSetBits(bitset, 0, len(bitset))
b := NewFloatBuilder(mem)
b.Resize(n)
for i := 0; i < len(bitset); i++ {
if bitutil.BitIsSet(bitset, i) {
if arr.IsValid(i) {
b.Append(arr.Value(i))
} else {
b.AppendNull()
}
}
}
return b.NewFloatArray()
}
func FilterBooleans(arr *array.Boolean, bitset []byte, mem memory.Allocator) *array.Boolean {
n := bitutil.CountSetBits(bitset, 0, len(bitset))
b := NewBooleanBuilder(mem)
b.Resize(n)
for i := 0; i < len(bitset); i++ {
if bitutil.BitIsSet(bitset, i) {
if arr.IsValid(i) {
b.Append(arr.Value(i))
} else {
b.AppendNull()
}
}
}
return b.NewBooleanArray()
}
func FilterStrings(arr *array.String, bitset []byte, mem memory.Allocator) *array.String {
n := bitutil.CountSetBits(bitset, 0, len(bitset))
b := NewStringBuilder(mem)
b.Resize(n)
for i := 0; i < len(bitset); i++ {
if bitutil.BitIsSet(bitset, i) {
if arr.IsValid(i) {
b.Append(arr.Value(i))
} else {
b.AppendNull()
}
}
}
return b.NewStringArray()
}