wehub-resource-sync
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114 lines
3.0 KiB
Go
114 lines
3.0 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 column
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import (
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"github.com/cockroachdb/errors"
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"github.com/tidwall/gjson"
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)
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// ColumnDynamic is a logically wrapper for dynamic json field with provided output field.
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type ColumnDynamic struct {
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*ColumnJSONBytes
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outputField string
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}
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func NewColumnDynamic(column *ColumnJSONBytes, outputField string) *ColumnDynamic {
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return &ColumnDynamic{
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ColumnJSONBytes: column,
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outputField: outputField,
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}
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}
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func (c *ColumnDynamic) Name() string {
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return c.outputField
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}
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// Get returns element at idx as interface{}.
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// Overrides internal json column behavior, returns raw json data.
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func (c *ColumnDynamic) Get(idx int) (interface{}, error) {
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bs, err := c.ColumnJSONBytes.Value(idx)
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if err != nil {
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return 0, err
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}
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r := gjson.GetBytes(bs, c.outputField)
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if !r.Exists() {
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return 0, errors.New("column not has value")
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}
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return r.Raw, nil
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}
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func (c *ColumnDynamic) GetAsInt64(idx int) (int64, error) {
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bs, err := c.ColumnJSONBytes.Value(idx)
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if err != nil {
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return 0, err
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}
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r := gjson.GetBytes(bs, c.outputField)
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if !r.Exists() {
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return 0, errors.New("column not has value")
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}
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if r.Type != gjson.Number {
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return 0, errors.New("column not int")
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}
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return r.Int(), nil
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}
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func (c *ColumnDynamic) GetAsString(idx int) (string, error) {
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bs, err := c.ColumnJSONBytes.Value(idx)
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if err != nil {
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return "", err
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}
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r := gjson.GetBytes(bs, c.outputField)
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if !r.Exists() {
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return "", errors.New("column not has value")
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}
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if r.Type != gjson.String {
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return "", errors.New("column not string")
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}
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return r.String(), nil
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}
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func (c *ColumnDynamic) GetAsBool(idx int) (bool, error) {
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bs, err := c.ColumnJSONBytes.Value(idx)
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if err != nil {
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return false, err
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}
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r := gjson.GetBytes(bs, c.outputField)
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if !r.Exists() {
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return false, errors.New("column not has value")
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}
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if !r.IsBool() {
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return false, errors.New("column not string")
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}
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return r.Bool(), nil
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}
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func (c *ColumnDynamic) GetAsDouble(idx int) (float64, error) {
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bs, err := c.ColumnJSONBytes.Value(idx)
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if err != nil {
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return 0, err
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}
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r := gjson.GetBytes(bs, c.outputField)
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if !r.Exists() {
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return 0, errors.New("column not has value")
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}
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if r.Type != gjson.Number {
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return 0, errors.New("column not string")
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}
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return r.Float(), nil
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}
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