47 lines
1.4 KiB
Go
47 lines
1.4 KiB
Go
/*
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Copyright 2021 The Dapr Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may 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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package metadata
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import (
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"strings"
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)
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// Base is the common metadata across components.
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// All components-specific metadata should embed this.
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type Base struct {
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// Name is the name of the component that's being used.
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Name string
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// Properties is the metadata properties.
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Properties map[string]string `json:"properties,omitempty"`
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}
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// GetProperty returns the value of a property, looking it up case-insensitively
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func (b Base) GetProperty(names ...string) (string, bool) {
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// Note that we must look for "names" inside the map, and not vice-versa: this way we can guarantee the order
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// Start by lowercasing all metadata keys
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mdkeys := make(map[string]string, len(b.Properties))
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for k := range b.Properties {
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mdkeys[strings.ToLower(k)] = k
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}
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for _, k := range names {
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mapK := mdkeys[strings.ToLower(k)]
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if mapK != "" {
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return b.Properties[mapK], true
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}
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}
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return "", false
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}
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