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reader_file.go
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/
reader_file.go
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// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
package iplibrary
import (
"compress/gzip"
"errors"
"io"
"net"
"os"
)
type FileReader struct {
rawReader *Reader
}
func NewFileReader(path string) (*FileReader, error) {
fp, err := os.Open(path)
if err != nil {
return nil, err
}
defer func() {
_ = fp.Close()
}()
return NewFileDataReader(fp)
}
func NewFileDataReader(dataReader io.Reader) (*FileReader, error) {
gzReader, err := gzip.NewReader(dataReader)
if err != nil {
return nil, errors.New("create gzip reader failed: " + err.Error())
}
reader, err := NewReader(gzReader)
if err != nil {
return nil, err
}
return &FileReader{
rawReader: reader,
}, nil
}
func (this *FileReader) Meta() *Meta {
return this.rawReader.meta
}
func (this *FileReader) Lookup(ip net.IP) *QueryResult {
return this.rawReader.Lookup(ip)
}
func (this *FileReader) RawReader() *Reader {
return this.rawReader
}