102 lines
3.3 KiB
Go
102 lines
3.3 KiB
Go
package logging
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import (
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"fmt"
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"log"
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"os"
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)
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// Logging platform
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type loggerObserver interface {
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Log(message string)
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setLogFile()
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setLogFilePrefix(prefix string)
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setLogDirectory(dirName string)
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init(opts ...loggerOption)
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}
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type specifics struct {
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logFilePrefix string
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logFile *log.Logger
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}
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type loggerObserverImpl struct {
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logFile *log.Logger
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logObserverSpecifics map[string]*specifics
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logDirectory string
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}
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func (loi *loggerObserverImpl) init(opts ...loggerOption) {
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for _, opt := range opts {
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// applying logger options
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if err := opt(loi); err != nil {
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log.Fatal(err)
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}
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}
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}
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func (loi loggerObserverImpl) Log(message string) {}
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// Requires logFilePrefix to have already been set
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func (loi *loggerObserverImpl) setLogFile() {
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for prefix, ls := range loi.logObserverSpecifics {
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if logFile, err := os.Create(ls.logFilePrefix); err != nil {
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log.Fatal("Unable to create logFile: ", err)
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} else {
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fmt.Printf("Creating logFile with pathname: %s, and prefix: %s\n", ls.logFilePrefix, prefix)
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ls.logFile = log.New(logFile, "", log.LstdFlags)
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}
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}
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}
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func (loi *loggerObserverImpl) setLogFilePrefix(prefix string) {
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// Setting logFilePrefix for pcp logger
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pcpLogFilePrefix := prefix + ".pcplog"
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if loi.logDirectory != "" {
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pcpLogFilePrefix = loi.logDirectory + "/" + pcpLogFilePrefix
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}
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loi.logObserverSpecifics[pcpLogger].logFilePrefix = pcpLogFilePrefix
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// Setting logFilePrefix for console logger
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consoleLogFilePrefix := prefix + "_console.log"
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if loi.logDirectory != "" {
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consoleLogFilePrefix = loi.logDirectory + "/" + consoleLogFilePrefix
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}
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loi.logObserverSpecifics[conLogger].logFilePrefix = consoleLogFilePrefix
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// Setting logFilePrefix for schedTrace logger
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schedTraceLogFilePrefix := prefix + "_schedTrace.log"
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if loi.logDirectory != "" {
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schedTraceLogFilePrefix = loi.logDirectory + "/" + schedTraceLogFilePrefix
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}
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loi.logObserverSpecifics[schedTraceLogger].logFilePrefix = schedTraceLogFilePrefix
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// Setting logFilePrefix for schedulingPolicySwitch logger
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schedPolicySwitchLogFilePrefix := prefix + "_schedPolicySwitch.log"
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if loi.logDirectory != "" {
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schedPolicySwitchLogFilePrefix = loi.logDirectory + "/" + schedPolicySwitchLogFilePrefix
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}
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loi.logObserverSpecifics[spsLogger].logFilePrefix = schedPolicySwitchLogFilePrefix
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// Setting logFilePrefix for clsfnTaskDist logger.
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// Execution time of every call to def.GetTaskDistribution(...) would be recorded and logged in this file.
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// The overhead would be logged in microseconds.
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clsfnTaskDistOverheadLogFilePrefix := prefix + "_classificationOverhead.log"
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if loi.logDirectory != "" {
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clsfnTaskDistOverheadLogFilePrefix = loi.logDirectory + "/" + clsfnTaskDistOverheadLogFilePrefix
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}
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loi.logObserverSpecifics[clsfnTaskDistOverheadLogger].logFilePrefix = clsfnTaskDistOverheadLogFilePrefix
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// Setting logFilePrefix for schedWindow logger.
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// Going to log the time stamp when the scheduling window was determined
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// and the size of the scheduling window.
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schedWindowLogFilePrefix := prefix + "_schedWindow.log"
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if loi.logDirectory != "" {
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schedWindowLogFilePrefix = loi.logDirectory + "/" + schedWindowLogFilePrefix
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}
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loi.logObserverSpecifics[schedWindowLogger].logFilePrefix = schedWindowLogFilePrefix
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}
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func (loi *loggerObserverImpl) setLogDirectory(dirName string) {
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loi.logDirectory = dirName
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}
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