44f7700c0c
* Backend: Enable Go module graph pruning and lazy module loading This commit applies the changes by running `go mod tidy -go=1.17` to enable module graph pruning and lazy module loading supported by Go 1.17 or higher. Signed-off-by: Eng Zer Jun <engzerjun@gmail.com> * Backend: Move from io/ioutil to io and os package The io/ioutil package has been deprecated as of Go 1.16, see https://golang.org/doc/go1.16#ioutil. This commit replaces the existing io/ioutil functions with their new definitions in io and os packages. Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
53 lines
758 B
Go
53 lines
758 B
Go
package clusters
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import (
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"encoding/json"
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"os"
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)
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type jsonImporter struct {
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}
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func JsonImporter() Importer {
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return &jsonImporter{}
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}
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func (i *jsonImporter) Import(file string, start, end int) ([][]float64, error) {
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if start < 0 || end < 0 || start > end {
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return [][]float64{}, errInvalidRange
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}
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f, err := os.ReadFile(file)
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if err != nil {
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return [][]float64{}, err
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}
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var (
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d = make([][]float64, 0)
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s = end - start + 1
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g = make([]float64, 0, s)
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c int
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)
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err = json.Unmarshal(f, &d)
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if err != nil {
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return [][]float64{}, err
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}
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for i, _ := range d {
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c = 0
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for j := start; j <= end; j++ {
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g[c] = d[i][j]
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c++
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}
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d[i] = make([]float64, 0, s)
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for j := 0; j < s; j++ {
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d[i][j] = g[j]
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}
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}
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return d, nil
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}
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