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

65 lines
1.7 KiB
Go

// 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 plugin
import "fmt"
type PluginLoader func(p interface{}) error
var registry = map[string]PluginLoader{}
func Bundle(
bundles ...map[string][]interface{},
) map[string][]interface{} {
ret := map[string][]interface{}{}
for _, bundle := range bundles {
for name, plugins := range bundle {
ret[name] = append(ret[name], plugins...)
}
}
return ret
}
func MakePlugin(key string, ifc interface{}) map[string][]interface{} {
return map[string][]interface{}{
key: {ifc},
}
}
func MustRegisterLoader(name string, l PluginLoader) {
err := RegisterLoader(name, l)
if err != nil {
panic(err)
}
}
func RegisterLoader(name string, l PluginLoader) error {
if l := registry[name]; l != nil {
return fmt.Errorf("plugin loader '%v' already registered", name)
}
registry[name] = l
return nil
}
func LoadPlugins(path string) error {
// TODO: add flag to enable/disable plugins?
return loadPlugins(path)
}