youtubebeat/vendor/github.com/elastic/beats/libbeat/autodiscover/builder/plugin.go

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2018-11-18 11:08:38 +01:00
// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package builder
import (
"errors"
"github.com/elastic/beats/libbeat/autodiscover"
p "github.com/elastic/beats/libbeat/plugin"
)
type builderPlugin struct {
name string
builder autodiscover.BuilderConstructor
}
var pluginKey = "libbeat.autodiscover.builder"
// Plugin accepts a BuilderConstructor to be registered as a plugin
func Plugin(name string, b autodiscover.BuilderConstructor) map[string][]interface{} {
return p.MakePlugin(pluginKey, builderPlugin{name, b})
}
func init() {
p.MustRegisterLoader(pluginKey, func(ifc interface{}) error {
b, ok := ifc.(builderPlugin)
if !ok {
return errors.New("plugin does not match builder plugin type")
}
return autodiscover.Registry.AddBuilder(b.name, b.builder)
})
}