boulder/analysis/analysis-engine.go

47 lines
1.3 KiB
Go

// Copyright 2014 ISRG. All rights reserved
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package analysisengine
import (
blog "github.com/letsencrypt/boulder/log"
"encoding/json"
"fmt"
"github.com/letsencrypt/boulder/Godeps/_workspace/src/github.com/streadway/amqp"
)
// This file analyzes messages obtained from the Message Broker to determine
// whether the system as a whole is functioning correctly.
// Interface all Analysis Engines share
type AnalysisEngine interface {
ProcessMessage(amqp.Delivery) (err error)
}
// An Analysis Engine that just logs to the JSON Logger.
type LoggingAnalysisEngine struct {
log *blog.AuditLogger
}
func (eng *LoggingAnalysisEngine) ProcessMessage(delivery amqp.Delivery) (err error) {
// Send the entire message contents to the syslog server for debugging.
encoded, err := json.Marshal(delivery)
if err != nil {
return
}
err = eng.log.Debug(fmt.Sprintf("MONITOR: %s", encoded))
return
}
// Construct a new Analysis Engine.
func NewLoggingAnalysisEngine(logger *blog.AuditLogger) AnalysisEngine {
logger.Notice("Analysis Engine Starting")
return &LoggingAnalysisEngine{log: logger}
}