mirror of
https://gitee.com/milvus-io/milvus.git
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81f0d498be
issue: https://github.com/milvus-io/milvus/issues/44567 Signed-off-by: yhmo <yihua.mo@zilliz.com>
110 lines
2.9 KiB
Go
110 lines
2.9 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package importutilv2
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import (
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"fmt"
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"path/filepath"
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"github.com/samber/lo"
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"github.com/milvus-io/milvus/pkg/v2/proto/internalpb"
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"github.com/milvus-io/milvus/pkg/v2/util/merr"
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)
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type FileType int
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const (
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Invalid FileType = 0
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JSON FileType = 1
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Numpy FileType = 2
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Parquet FileType = 3
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CSV FileType = 4
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JSONLines FileType = 5
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JSONFileExt = ".json"
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JSONLFileExt = ".jsonl"
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NDJSONFileExt = ".ndjson"
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NumpyFileExt = ".npy"
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ParquetFileExt = ".parquet"
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CSVFileExt = ".csv"
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)
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var FileTypeName = map[int]string{
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0: "Invalid",
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1: "JSON",
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2: "Numpy",
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3: "Parquet",
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4: "CSV",
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5: "JSONLines",
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}
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func (f FileType) String() string {
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return FileTypeName[int(f)]
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}
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func isJSONLinesType(ft string) bool {
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return ft == JSONLFileExt || ft == NDJSONFileExt
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}
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func GetFileType(file *internalpb.ImportFile) (FileType, error) {
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if len(file.GetPaths()) == 0 {
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return Invalid, merr.WrapErrImportFailed("no file to import")
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}
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exts := lo.Map(file.GetPaths(), func(path string, _ int) string {
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return filepath.Ext(path)
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})
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ext := exts[0]
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for i := 1; i < len(exts); i++ {
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// *.jsonl equals *.ndjson
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if isJSONLinesType(exts[i]) && isJSONLinesType(ext) {
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continue
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}
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if exts[i] != ext {
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return Invalid, merr.WrapErrImportFailed(
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fmt.Sprintf("inconsistency in file types, (%s) vs (%s)",
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file.GetPaths()[0], file.GetPaths()[i]))
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}
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}
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switch ext {
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case JSONFileExt, JSONLFileExt, NDJSONFileExt:
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if len(file.GetPaths()) != 1 {
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return Invalid, merr.WrapErrImportFailed("for JSON import, accepts only one file")
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}
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if isJSONLinesType(ext) {
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return JSONLines, nil
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} else {
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return JSON, nil
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}
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case NumpyFileExt:
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return Numpy, nil
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case ParquetFileExt:
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if len(file.GetPaths()) != 1 {
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return Invalid, merr.WrapErrImportFailed("for Parquet import, accepts only one file")
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}
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return Parquet, nil
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case CSVFileExt:
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if len(file.GetPaths()) != 1 {
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return Invalid, merr.WrapErrImportFailed("for CSV import, accepts only one file")
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}
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return CSV, nil
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}
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return Invalid, merr.WrapErrImportFailed(fmt.Sprintf("unexpected file type, files=%v", file.GetPaths()))
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}
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