emkornfield commented on a change in pull request #11538: URL: https://github.com/apache/arrow/pull/11538#discussion_r779315577
########## File path: go/parquet/internal/testutils/primitive_typed.go ########## @@ -0,0 +1,305 @@ +// 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 testutils + +import ( + "fmt" + "reflect" + + "github.com/apache/arrow/go/v7/arrow/memory" + "github.com/apache/arrow/go/v7/parquet" + "github.com/apache/arrow/go/v7/parquet/file" + "github.com/apache/arrow/go/v7/parquet/metadata" + "github.com/apache/arrow/go/v7/parquet/schema" +) + +type PrimitiveTypedTest struct { + Node schema.Node + Schema *schema.Schema + + Typ reflect.Type + + DefLevels []int16 + RepLevels []int16 + Buffer *memory.Buffer + Values interface{} + + ValuesOut interface{} + DefLevelsOut []int16 + RepLevelsOut []int16 +} + +func NewPrimitiveTypedTest(typ reflect.Type) PrimitiveTypedTest { + return PrimitiveTypedTest{Typ: typ} +} + +func (p *PrimitiveTypedTest) SetupValuesOut(nvalues int64) { + p.ValuesOut = reflect.MakeSlice(reflect.SliceOf(p.Typ), int(nvalues), int(nvalues)).Interface() + p.DefLevelsOut = make([]int16, nvalues) + p.RepLevelsOut = make([]int16, nvalues) +} + +func (p *PrimitiveTypedTest) GenerateData(nvalues int64) { + p.DefLevels = make([]int16, nvalues) + p.Values = reflect.MakeSlice(reflect.SliceOf(p.Typ), int(nvalues), int(nvalues)).Interface() + InitValues(p.Values, p.Buffer) + for idx := range p.DefLevels { + p.DefLevels[idx] = 1 + } +} + +func (p *PrimitiveTypedTest) SetupSchema(rep parquet.Repetition, ncols int) { + fields := make([]schema.Node, ncols) + for i := 0; i < ncols; i++ { + name := fmt.Sprintf("column_%d", i) + fields[i], _ = schema.NewPrimitiveNode(name, rep, TypeToParquetType(p.Typ), -1, 12) + } + p.Node, _ = schema.NewGroupNode("schema", parquet.Repetitions.Required, fields, -1) + p.Schema = schema.NewSchema(p.Node.(*schema.GroupNode)) + p.Buffer = memory.NewResizableBuffer(memory.DefaultAllocator) +} + +func (p *PrimitiveTypedTest) UpdateStats(stat metadata.TypedStatistics, numNull int64) { + nvalues := int64(len(p.DefLevels)) + switch s := stat.(type) { + case *metadata.Int32Statistics: + s.Update(p.Values.([]int32)[:nvalues-numNull], numNull) + case *metadata.Int64Statistics: + s.Update(p.Values.([]int64)[:nvalues-numNull], numNull) + case *metadata.Float32Statistics: + s.Update(p.Values.([]float32)[:nvalues-numNull], numNull) + case *metadata.Float64Statistics: + s.Update(p.Values.([]float64)[:nvalues-numNull], numNull) + case *metadata.Int96Statistics: + s.Update(p.Values.([]parquet.Int96)[:nvalues-numNull], numNull) + case *metadata.ByteArrayStatistics: + s.Update(p.Values.([]parquet.ByteArray)[:nvalues-numNull], numNull) + case *metadata.BooleanStatistics: + s.Update(p.Values.([]bool)[:nvalues-numNull], numNull) + case *metadata.FixedLenByteArrayStatistics: + s.Update(p.Values.([]parquet.FixedLenByteArray)[:nvalues-numNull], numNull) + default: + panic("unimplemented") + } +} + +func (p *PrimitiveTypedTest) UpdateStatsSpaced(stat metadata.TypedStatistics, numNull int64, validBits []byte, validBitsOffset int64) { + switch s := stat.(type) { + case *metadata.Int32Statistics: + s.UpdateSpaced(p.Values.([]int32), validBits, validBitsOffset, numNull) + case *metadata.Int64Statistics: + s.UpdateSpaced(p.Values.([]int64), validBits, validBitsOffset, numNull) + case *metadata.Float32Statistics: + s.UpdateSpaced(p.Values.([]float32), validBits, validBitsOffset, numNull) + case *metadata.Float64Statistics: + s.UpdateSpaced(p.Values.([]float64), validBits, validBitsOffset, numNull) + case *metadata.Int96Statistics: + s.UpdateSpaced(p.Values.([]parquet.Int96), validBits, validBitsOffset, numNull) + case *metadata.ByteArrayStatistics: + s.UpdateSpaced(p.Values.([]parquet.ByteArray), validBits, validBitsOffset, numNull) + case *metadata.BooleanStatistics: + s.UpdateSpaced(p.Values.([]bool), validBits, validBitsOffset, numNull) + case *metadata.FixedLenByteArrayStatistics: + s.UpdateSpaced(p.Values.([]parquet.FixedLenByteArray), validBits, validBitsOffset, numNull) + default: + panic("uninplemented") + } +} + +func (p *PrimitiveTypedTest) GetMinMax(stat metadata.TypedStatistics) (min, max interface{}) { + switch s := stat.(type) { + case *metadata.Int32Statistics: + min = s.Min() + max = s.Max() + case *metadata.Int64Statistics: + min = s.Min() + max = s.Max() + case *metadata.Float32Statistics: + min = s.Min() + max = s.Max() + case *metadata.Float64Statistics: + min = s.Min() + max = s.Max() + case *metadata.ByteArrayStatistics: + min = s.Min() + max = s.Max() + case *metadata.Int96Statistics: + min = s.Min() + max = s.Max() + case *metadata.BooleanStatistics: + min = s.Min() + max = s.Max() + case *metadata.FixedLenByteArrayStatistics: + min = s.Min() + max = s.Max() + default: + panic("unimplemented") + } + return +} + +func (p *PrimitiveTypedTest) WriteBatchValues(writer file.ColumnChunkWriter, defLevels, repLevels []int16) (int64, error) { + switch w := writer.(type) { + case *file.Int32ColumnChunkWriter: + return w.WriteBatch(p.Values.([]int32), defLevels, repLevels) + case *file.Int64ColumnChunkWriter: + return w.WriteBatch(p.Values.([]int64), defLevels, repLevels) + case *file.Float32ColumnChunkWriter: + return w.WriteBatch(p.Values.([]float32), defLevels, repLevels) + case *file.Float64ColumnChunkWriter: + return w.WriteBatch(p.Values.([]float64), defLevels, repLevels) + case *file.Int96ColumnChunkWriter: + return w.WriteBatch(p.Values.([]parquet.Int96), defLevels, repLevels) + case *file.ByteArrayColumnChunkWriter: + return w.WriteBatch(p.Values.([]parquet.ByteArray), defLevels, repLevels) + case *file.BooleanColumnChunkWriter: + return w.WriteBatch(p.Values.([]bool), defLevels, repLevels) + case *file.FixedLenByteArrayColumnChunkWriter: + return w.WriteBatch(p.Values.([]parquet.FixedLenByteArray), defLevels, repLevels) + default: + panic("unimplemented") + } +} + +func (p *PrimitiveTypedTest) WriteBatchSubset(batch, offset int, writer file.ColumnChunkWriter, defLevels, repLevels []int16) (int64, error) { + switch w := writer.(type) { + case *file.Int32ColumnChunkWriter: + return w.WriteBatch(p.Values.([]int32)[offset:batch+offset], defLevels, repLevels) + case *file.Int64ColumnChunkWriter: + return w.WriteBatch(p.Values.([]int64)[offset:batch+offset], defLevels, repLevels) + case *file.Float32ColumnChunkWriter: + return w.WriteBatch(p.Values.([]float32)[offset:batch+offset], defLevels, repLevels) + case *file.Float64ColumnChunkWriter: + return w.WriteBatch(p.Values.([]float64)[offset:batch+offset], defLevels, repLevels) + case *file.Int96ColumnChunkWriter: + return w.WriteBatch(p.Values.([]parquet.Int96)[offset:batch+offset], defLevels, repLevels) + case *file.ByteArrayColumnChunkWriter: + return w.WriteBatch(p.Values.([]parquet.ByteArray)[offset:batch+offset], defLevels, repLevels) + case *file.BooleanColumnChunkWriter: + return w.WriteBatch(p.Values.([]bool)[offset:batch+offset], defLevels, repLevels) + case *file.FixedLenByteArrayColumnChunkWriter: + return w.WriteBatch(p.Values.([]parquet.FixedLenByteArray)[offset:batch+offset], defLevels, repLevels) + default: + panic("unimplemented") + } +} + +func (p *PrimitiveTypedTest) WriteBatchValuesSpaced(writer file.ColumnChunkWriter, defLevels, repLevels []int16, validBits []byte, validBitsOffset int64) { + switch w := writer.(type) { + case *file.Int32ColumnChunkWriter: + w.WriteBatchSpaced(p.Values.([]int32), defLevels, repLevels, validBits, validBitsOffset) + case *file.Int64ColumnChunkWriter: + w.WriteBatchSpaced(p.Values.([]int64), defLevels, repLevels, validBits, validBitsOffset) + case *file.Float32ColumnChunkWriter: + w.WriteBatchSpaced(p.Values.([]float32), defLevels, repLevels, validBits, validBitsOffset) + case *file.Float64ColumnChunkWriter: + w.WriteBatchSpaced(p.Values.([]float64), defLevels, repLevels, validBits, validBitsOffset) + case *file.Int96ColumnChunkWriter: + w.WriteBatchSpaced(p.Values.([]parquet.Int96), defLevels, repLevels, validBits, validBitsOffset) + case *file.ByteArrayColumnChunkWriter: + w.WriteBatchSpaced(p.Values.([]parquet.ByteArray), defLevels, repLevels, validBits, validBitsOffset) + case *file.BooleanColumnChunkWriter: + w.WriteBatchSpaced(p.Values.([]bool), defLevels, repLevels, validBits, validBitsOffset) + case *file.FixedLenByteArrayColumnChunkWriter: + w.WriteBatchSpaced(p.Values.([]parquet.FixedLenByteArray), defLevels, repLevels, validBits, validBitsOffset) + default: + panic("unimplemented") + } +} + +func (p *PrimitiveTypedTest) ReadBatch(reader file.ColumnChunkReader, batch, valuesRead int64, defLevels, repLevels []int16) int64 { + switch r := reader.(type) { + case *file.Int32ColumnChunkReader: + _, read, _ := r.ReadBatch(batch, p.ValuesOut.([]int32)[valuesRead:], defLevels, repLevels) + return int64(read) + case *file.Int64ColumnChunkReader: + _, read, _ := r.ReadBatch(batch, p.ValuesOut.([]int64)[valuesRead:], defLevels, repLevels) + return int64(read) + case *file.Float32ColumnChunkReader: + _, read, _ := r.ReadBatch(batch, p.ValuesOut.([]float32)[valuesRead:], defLevels, repLevels) + return int64(read) + case *file.Float64ColumnChunkReader: + _, read, _ := r.ReadBatch(batch, p.ValuesOut.([]float64)[valuesRead:], defLevels, repLevels) + return int64(read) + case *file.Int96ColumnChunkReader: + _, read, _ := r.ReadBatch(batch, p.ValuesOut.([]parquet.Int96)[valuesRead:], defLevels, repLevels) + return int64(read) + case *file.ByteArrayColumnChunkReader: + _, read, _ := r.ReadBatch(batch, p.ValuesOut.([]parquet.ByteArray)[valuesRead:], defLevels, repLevels) + return int64(read) + case *file.BooleanColumnChunkReader: + _, read, _ := r.ReadBatch(batch, p.ValuesOut.([]bool)[valuesRead:], defLevels, repLevels) + return int64(read) + case *file.FixedLenByteArrayColumnChunkReader: + _, read, _ := r.ReadBatch(batch, p.ValuesOut.([]parquet.FixedLenByteArray)[valuesRead:], defLevels, repLevels) + return int64(read) + default: + panic("unimplemented") + } +} + +func Min(v1, v2 interface{}) interface{} { + switch n1 := v1.(type) { + case int32: + if n1 < v2.(int32) { + return n1 + } + return v2 + case int64: + if n1 < v2.(int64) { + return n1 + } + return v2 + case float32: + if n1 < v2.(float32) { + return n1 + } + return v2 + case float64: + if n1 < v2.(float64) { + return n1 + } + return v2 + } + panic("wtf") +} + +func Max(v1, v2 interface{}) interface{} { + switch n1 := v1.(type) { + case int32: + if n1 < v2.(int32) { + return v2 + } + return n1 + case int64: + if n1 < v2.(int64) { + return v2 + } + return n1 + case float32: + if n1 < v2.(float32) { + return v2 + } + return n1 + case float64: + if n1 < v2.(float64) { + return v2 + } + return n1 + } + panic("wtf") Review comment: is wtf common in 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