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runnerfactory.go
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runnerfactory.go
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// 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 input
import (
"github.com/elastic/beats/v7/filebeat/channel"
"github.com/elastic/beats/v7/filebeat/registrar"
"github.com/elastic/beats/v7/libbeat/beat"
"github.com/elastic/beats/v7/libbeat/cfgfile"
"github.com/elastic/beats/v7/libbeat/common"
"github.com/elastic/beats/v7/libbeat/publisher/pipeline"
)
// RunnerFactory is a factory for registrars
type RunnerFactory struct {
outlet channel.Factory
registrar *registrar.Registrar
beatDone chan struct{}
}
// NewRunnerFactory instantiates a new RunnerFactory
func NewRunnerFactory(outlet channel.Factory, registrar *registrar.Registrar, beatDone chan struct{}) *RunnerFactory {
return &RunnerFactory{
outlet: outlet,
registrar: registrar,
beatDone: beatDone,
}
}
// Create creates a input based on a config
func (r *RunnerFactory) Create(
pipeline beat.PipelineConnector,
c *common.Config,
) (cfgfile.Runner, error) {
connector := r.outlet(pipeline)
p, err := New(c, connector, r.beatDone, r.registrar.GetStates())
if err != nil {
// In case of error with loading state, input is still returned
return p, err
}
return p, nil
}
func (r *RunnerFactory) CheckConfig(cfg *common.Config) error {
runner, err := r.Create(pipeline.NewNilPipeline(), cfg)
if _, ok := err.(*common.ErrInputNotFinished); ok {
// error is related to state, and hence config can be considered valid
return nil
}
if err != nil {
return err
}
runner.Stop()
return nil
}