youtubebeat/vendor/github.com/elastic/beats/libbeat/processors/registry.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 processors
import (
"errors"
"github.com/elastic/beats/libbeat/common"
"github.com/elastic/beats/libbeat/logp"
p "github.com/elastic/beats/libbeat/plugin"
)
type processorPlugin struct {
name string
constr Constructor
}
var pluginKey = "libbeat.processor"
func Plugin(name string, c Constructor) map[string][]interface{} {
return p.MakePlugin(pluginKey, processorPlugin{name, c})
}
func init() {
p.MustRegisterLoader(pluginKey, func(ifc interface{}) error {
p, ok := ifc.(processorPlugin)
if !ok {
return errors.New("plugin does not match processor plugin type")
}
return registry.Register(p.name, p.constr)
})
}
type Constructor func(config *common.Config) (Processor, error)
var registry = NewNamespace()
func RegisterPlugin(name string, constructor Constructor) {
logp.Debug("processors", "Register plugin %s", name)
err := registry.Register(name, constructor)
if err != nil {
panic(err)
}
}