collector_proxy.go

// Copyright (c) 2018 The Jaeger Authors.
//
// Licensed 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 tchannel

import (
	"github.com/uber/jaeger-lib/metrics"
	"go.uber.org/zap"

	"github.com/jaegertracing/jaeger/cmd/agent/app/configmanager"
	"github.com/jaegertracing/jaeger/cmd/agent/app/configmanager/tchannel"
	"github.com/jaegertracing/jaeger/cmd/agent/app/reporter"
)

// ProxyBuilder holds objects communicating with collector
type ProxyBuilder struct {
	reporter *reporter.ClientMetricsReporter
	manager  configmanager.ClientConfigManager
	tchanRep *Reporter
}

// NewCollectorProxy creates ProxyBuilder
func NewCollectorProxy(builder *Builder, mFactory metrics.Factory, logger *zap.Logger) (*ProxyBuilder, error) {
	tchanRep, err := builder.CreateReporter(logger)
	if err != nil {
		return nil, err
	}
	tchanMetrics := mFactory.Namespace(metrics.NSOptions{Name: "", Tags: map[string]string{"protocol": "tchannel"}})
	r1 := reporter.WrapWithMetrics(tchanRep, tchanMetrics)
	r2 := reporter.WrapWithClientMetrics(reporter.ClientMetricsReporterParams{
		Reporter:       r1,
		Logger:         logger,
		MetricsFactory: mFactory,
	})
	return &ProxyBuilder{
		tchanRep: tchanRep,
		reporter: r2,
		manager:  configmanager.WrapWithMetrics(tchannel.NewConfigManager(tchanRep.CollectorServiceName(), tchanRep.Channel()), tchanMetrics),
	}, nil
}

// GetReporter returns Reporter
func (b ProxyBuilder) GetReporter() reporter.Reporter {
	return b.reporter
}

// GetManager returns manager
func (b ProxyBuilder) GetManager() configmanager.ClientConfigManager {
	return b.manager
}

// Close closes connections used by proxy.
func (b ProxyBuilder) Close() error {
	b.tchanRep.Channel().Close()
	b.reporter.Close()
	return nil
}