mirror of
https://github.com/Icinga/icingabeat.git
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120 lines
3.6 KiB
Go
120 lines
3.6 KiB
Go
// Licensed to Elasticsearch B.V. under one or more contributor
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// license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright
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// ownership. Elasticsearch B.V. licenses this file to you under
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// the Apache License, Version 2.0 (the "License"); you may
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// 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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package channel
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import (
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"github.com/elastic/beats/libbeat/beat"
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"github.com/elastic/beats/libbeat/common"
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"github.com/elastic/beats/libbeat/processors"
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)
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// ConnectorFunc is an adapter for using ordinary functions as Connector.
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type ConnectorFunc func(*common.Config, beat.ClientConfig) (Outleter, error)
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type pipelineConnector struct {
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parent *OutletFactory
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pipeline beat.Pipeline
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}
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// Connect passes the cfg and the zero value of beat.ClientConfig to the underlying function.
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func (fn ConnectorFunc) Connect(cfg *common.Config) (Outleter, error) {
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return fn(cfg, beat.ClientConfig{})
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}
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// ConnectWith passes the configuration and the pipeline connection setting to the underlying function.
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func (fn ConnectorFunc) ConnectWith(cfg *common.Config, clientCfg beat.ClientConfig) (Outleter, error) {
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return fn(cfg, clientCfg)
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}
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func (c *pipelineConnector) Connect(cfg *common.Config) (Outleter, error) {
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return c.ConnectWith(cfg, beat.ClientConfig{})
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}
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func (c *pipelineConnector) ConnectWith(cfg *common.Config, clientCfg beat.ClientConfig) (Outleter, error) {
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config := inputOutletConfig{}
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if err := cfg.Unpack(&config); err != nil {
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return nil, err
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}
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var err error
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var userProcessors beat.ProcessorList
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userProcessors, err = processors.New(config.Processors)
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if err != nil {
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return nil, err
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}
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if lst := clientCfg.Processing.Processor; lst != nil {
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if len(userProcessors.All()) == 0 {
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userProcessors = lst
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} else if orig := lst.All(); len(orig) > 0 {
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newLst := processors.NewList(nil)
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newLst.List = append(newLst.List, lst, userProcessors)
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userProcessors = newLst
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}
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}
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setOptional := func(to common.MapStr, key string, value string) {
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if value != "" {
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to.Put(key, value)
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}
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}
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meta := clientCfg.Processing.Meta.Clone()
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fields := clientCfg.Processing.Fields.Clone()
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serviceType := config.ServiceType
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if serviceType == "" {
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serviceType = config.Module
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}
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setOptional(meta, "pipeline", config.Pipeline)
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setOptional(fields, "fileset.name", config.Fileset)
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setOptional(fields, "service.type", serviceType)
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setOptional(fields, "input.type", config.Type)
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if config.Module != "" {
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event := common.MapStr{"module": config.Module}
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if config.Fileset != "" {
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event["dataset"] = config.Module + "." + config.Fileset
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}
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fields["event"] = event
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}
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mode := clientCfg.PublishMode
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if mode == beat.DefaultGuarantees {
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mode = beat.GuaranteedSend
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}
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// connect with updated configuration
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clientCfg.PublishMode = mode
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clientCfg.Processing.EventMetadata = config.EventMetadata
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clientCfg.Processing.Meta = meta
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clientCfg.Processing.Fields = fields
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clientCfg.Processing.Processor = userProcessors
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client, err := c.pipeline.ConnectWith(clientCfg)
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if err != nil {
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return nil, err
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}
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outlet := newOutlet(client, c.parent.wgEvents)
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if c.parent.done != nil {
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return CloseOnSignal(outlet, c.parent.done), nil
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}
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return outlet, nil
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}
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