77 lines
2.3 KiB
Go
77 lines
2.3 KiB
Go
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// Licensed to Elasticsearch B.V. under one or more contributor
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// license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright
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// ownership. Elasticsearch B.V. licenses this file to you under
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// the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License.
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// 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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package schema
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import (
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"github.com/joeshaw/multierror"
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"github.com/elastic/beats/libbeat/common"
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)
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// DefaultApplyOptions are the default options for Apply()
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var DefaultApplyOptions = []ApplyOption{AllRequired}
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// ApplyOption modifies the result of Apply
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type ApplyOption func(common.MapStr, multierror.Errors) (common.MapStr, multierror.Errors)
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// AllRequired considers any missing field as an error, except if explicitly
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// set as optional
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func AllRequired(event common.MapStr, errors multierror.Errors) (common.MapStr, multierror.Errors) {
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k := 0
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for i, err := range errors {
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if err, ok := err.(*KeyNotFoundError); ok {
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if err.Optional {
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continue
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}
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}
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errors[k] = errors[i]
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k++
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}
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return event, errors[:k]
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}
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// FailOnRequired considers missing fields as an error only if they are set
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// as required
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func FailOnRequired(event common.MapStr, errors multierror.Errors) (common.MapStr, multierror.Errors) {
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k := 0
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for i, err := range errors {
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if err, ok := err.(*KeyNotFoundError); ok {
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if !err.Required {
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continue
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}
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}
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errors[k] = errors[i]
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k++
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}
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return event, errors[:k]
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}
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// NotFoundKeys calls a function with the list of missing keys as parameter
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func NotFoundKeys(cb func(keys []string)) ApplyOption {
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return func(event common.MapStr, errors multierror.Errors) (common.MapStr, multierror.Errors) {
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var keys []string
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for _, err := range errors {
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if err, ok := err.(*KeyNotFoundError); ok {
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keys = append(keys, err.Key())
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}
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}
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cb(keys)
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return event, errors
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}
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}
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