refactored elektronLogging to logging

logging/logger.go

@@ -0,0 +1,54 @@
+package logging
+
+import (
+	"os"
+	"strings"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+	. "github.com/spdfg/elektron/logging/types"
+)
+
+var config LoggerConfig
+var formatter ElektronFormatter
+var ElektronLogger *loggerImpl
+
+func BuildLogger(prefix string, logConfigFilename string) {
+
+	// Read configuration from yaml.
+	config.GetConfig(logConfigFilename)
+
+	// Create the log directory.
+	startTime := time.Now()
+	formatter.TimestampFormat = "2006-01-02 15:04:05"
+	formattedStartTime := startTime.Format("20060102150405")
+	logDir := &logDirectory{}
+	logDir.createLogDir(prefix, startTime)
+
+	// Instantiate the logrus instance.
+	prefix = strings.Join([]string{prefix, formattedStartTime}, "_")
+	logger := &log.Logger{
+		Out:       os.Stderr,
+		Level:     log.DebugLevel,
+		Formatter: &formatter,
+	}
+
+	// Create a chain of loggers.
+	b := &baseLogData{data: log.Fields{}}
+	head := &loggerImpl{baseLogData: b}
+	cLog := NewConsoleLogger(b, CONSOLE, prefix, logger, logDir)
+	pLog := NewPCPLogger(b, PCP, prefix, logger, logDir)
+	schedTraceLog := NewSchedTraceLogger(b, SCHED_TRACE, prefix, logger, logDir)
+	spsLog := NewSchedPolicySwitchLogger(b, SPS, prefix, logger, logDir)
+	schedWindowLog := NewSchedWindowLogger(b, SCHED_WINDOW, prefix, logger, logDir)
+	tskDistLog := NewClsfnTaskDistrOverheadLogger(b, CLSFN_TASKDISTR_OVERHEAD, prefix, logger, logDir)
+
+	head.setNext(cLog)
+	cLog.setNext(pLog)
+	pLog.setNext(schedTraceLog)
+	schedTraceLog.setNext(spsLog)
+	spsLog.setNext(schedWindowLog)
+	schedWindowLog.setNext(tskDistLog)
+
+	ElektronLogger = head
+}