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authorzelig <viktor.tron@gmail.com>2015-03-21 17:20:47 +0800
committerzelig <viktor.tron@gmail.com>2015-03-22 10:16:54 +0800
commit78cff9e3a4c71d003c5ab3f5747ccae1dbc959fe (patch)
tree0bdc1bb55b9bd73730f9de658e1d87273482761a
parent7f85608f30a2e34005c8d15566849229c758c2f1 (diff)
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independent flag for json structured logging
- logjson flag remove logformat flag - passed to eth Config - logsystem not a field of Ethereum - LogSystem does not need to expose GetLogLevel/SetLogLevel - message struct just implements more generic LogMsg interface - LogMsg is a fmt.Stringer with Level() - jsonMsg ([]byte) implements LogMsg - remove "raw" systems - move level logic inside StdLogSystem - logsystems only print their kind of msg: jsonLogSystem prints jsonMsg, StdLogSystem prints stdMsg
-rw-r--r--cmd/ethereum/main.go2
-rw-r--r--cmd/utils/flags.go10
-rw-r--r--eth/backend.go31
-rw-r--r--logger/log.go24
-rw-r--r--logger/loggers.go7
-rw-r--r--logger/loggers_test.go10
-rw-r--r--logger/logsystem.go61
-rw-r--r--logger/sys.go45
8 files changed, 95 insertions, 95 deletions
diff --git a/cmd/ethereum/main.go b/cmd/ethereum/main.go
index 7d5854230..17dcbb59e 100644
--- a/cmd/ethereum/main.go
+++ b/cmd/ethereum/main.go
@@ -135,7 +135,7 @@ The Ethereum JavaScript VM exposes a node admin interface as well as the DAPP Ja
utils.JSpathFlag,
utils.ListenPortFlag,
utils.LogFileFlag,
- utils.LogFormatFlag,
+ utils.LogJSONFlag,
utils.LogLevelFlag,
utils.MaxPeersFlag,
utils.MinerThreadsFlag,
diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go
index 1d8f6382b..f87d25ce9 100644
--- a/cmd/utils/flags.go
+++ b/cmd/utils/flags.go
@@ -117,10 +117,10 @@ var (
Usage: "0-5 (silent, error, warn, info, debug, debug detail)",
Value: int(logger.InfoLevel),
}
- LogFormatFlag = cli.StringFlag{
- Name: "logformat",
- Usage: `"std" or "raw"`,
- Value: "std",
+ LogJSONFlag = cli.StringFlag{
+ Name: "logjson",
+ Usage: "Send json structured log output to a file or '-' for standard output (default: no json output)",
+ Value: "",
}
VMDebugFlag = cli.BoolFlag{
Name: "vmdebug",
@@ -213,7 +213,7 @@ func MakeEthConfig(clientID, version string, ctx *cli.Context) *eth.Config {
NetworkId: ctx.GlobalInt(NetworkIdFlag.Name),
LogFile: ctx.GlobalString(LogFileFlag.Name),
LogLevel: ctx.GlobalInt(LogLevelFlag.Name),
- LogFormat: ctx.GlobalString(LogFormatFlag.Name),
+ LogJSON: ctx.GlobalString(LogJSONFlag.Name),
MinerThreads: ctx.GlobalInt(MinerThreadsFlag.Name),
AccountManager: GetAccountManager(ctx),
VmDebug: ctx.GlobalBool(VMDebugFlag.Name),
diff --git a/eth/backend.go b/eth/backend.go
index 141c6c605..c253a064e 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -42,11 +42,11 @@ type Config struct {
ProtocolVersion int
NetworkId int
- DataDir string
- LogFile string
- LogLevel int
- LogFormat string
- VmDebug bool
+ DataDir string
+ LogFile string
+ LogLevel int
+ LogJSON string
+ VmDebug bool
MaxPeers int
Port string
@@ -136,7 +136,7 @@ type Ethereum struct {
blockSub event.Subscription
miner *miner.Miner
- logger logger.LogSystem
+ // logger logger.LogSystem
Mining bool
DataDir string
@@ -147,7 +147,10 @@ type Ethereum struct {
func New(config *Config) (*Ethereum, error) {
// Boostrap database
- servlogsystem := logger.New(config.DataDir, config.LogFile, config.LogLevel, config.LogFormat)
+ logger.New(config.DataDir, config.LogFile, config.LogLevel)
+ if len(config.LogJSON) > 0 {
+ logger.NewJSONsystem(config.DataDir, config.LogJSON)
+ }
newdb := config.NewDB
if newdb == nil {
@@ -174,12 +177,12 @@ func New(config *Config) (*Ethereum, error) {
servlogger.Infof("Protocol Version: %v, Network Id: %v", config.ProtocolVersion, config.NetworkId)
eth := &Ethereum{
- shutdownChan: make(chan bool),
- blockDb: blockDb,
- stateDb: stateDb,
- extraDb: extraDb,
- eventMux: &event.TypeMux{},
- logger: servlogsystem,
+ shutdownChan: make(chan bool),
+ blockDb: blockDb,
+ stateDb: stateDb,
+ extraDb: extraDb,
+ eventMux: &event.TypeMux{},
+ // logger: servlogsystem,
accountManager: config.AccountManager,
DataDir: config.DataDir,
version: config.Name, // TODO should separate from Name
@@ -303,7 +306,7 @@ func (s *Ethereum) StartMining() error {
func (s *Ethereum) StopMining() { s.miner.Stop() }
func (s *Ethereum) IsMining() bool { return s.miner.Mining() }
-func (s *Ethereum) Logger() logger.LogSystem { return s.logger }
+// func (s *Ethereum) Logger() logger.LogSystem { return s.logger }
func (s *Ethereum) Name() string { return s.net.Name }
func (s *Ethereum) AccountManager() *accounts.Manager { return s.accountManager }
func (s *Ethereum) ChainManager() *core.ChainManager { return s.chainManager }
diff --git a/logger/log.go b/logger/log.go
index fab004d0a..e2a35ba53 100644
--- a/logger/log.go
+++ b/logger/log.go
@@ -18,7 +18,7 @@ func openLogFile(datadir string, filename string) *os.File {
return file
}
-func New(datadir string, logFile string, logLevel int, logFormat string) LogSystem {
+func New(datadir string, logFile string, logLevel int) LogSystem {
var writer io.Writer
if logFile == "" {
writer = os.Stdout
@@ -27,14 +27,22 @@ func New(datadir string, logFile string, logLevel int, logFormat string) LogSyst
}
var sys LogSystem
- switch logFormat {
- case "raw":
- sys = NewRawLogSystem(writer, 0, LogLevel(logLevel))
- case "json":
- sys = NewJsonLogSystem(writer, 0, LogLevel(logLevel))
- default:
- sys = NewStdLogSystem(writer, log.LstdFlags, LogLevel(logLevel))
+ sys = NewStdLogSystem(writer, log.LstdFlags, LogLevel(logLevel))
+ AddLogSystem(sys)
+
+ return sys
+}
+
+func NewJSONsystem(datadir string, logFile string) LogSystem {
+ var writer io.Writer
+ if logFile == "-" {
+ writer = os.Stdout
+ } else {
+ writer = openLogFile(datadir, logFile)
}
+
+ var sys LogSystem
+ sys = NewJsonLogSystem(writer)
AddLogSystem(sys)
return sys
diff --git a/logger/loggers.go b/logger/loggers.go
index 25263853a..42c8cbc07 100644
--- a/logger/loggers.go
+++ b/logger/loggers.go
@@ -28,7 +28,6 @@ const (
InfoLevel
DebugLevel
DebugDetailLevel
- JsonLevel = 1000
)
// A Logger prints messages prefixed by a given tag. It provides named
@@ -43,11 +42,11 @@ func NewLogger(tag string) *Logger {
}
func (logger *Logger) Sendln(level LogLevel, v ...interface{}) {
- logMessageC <- message{level, logger.tag + fmt.Sprintln(v...)}
+ logMessageC <- stdMsg{level, logger.tag + fmt.Sprintln(v...)}
}
func (logger *Logger) Sendf(level LogLevel, format string, v ...interface{}) {
- logMessageC <- message{level, logger.tag + fmt.Sprintf(format, v...)}
+ logMessageC <- stdMsg{level, logger.tag + fmt.Sprintf(format, v...)}
}
// Errorln writes a message with ErrorLevel.
@@ -129,6 +128,6 @@ func (logger *JsonLogger) LogJson(v JsonLog) {
}
jsontxt, _ := json.Marshal(obj)
- logMessageC <- message{JsonLevel, string(jsontxt)}
+ logMessageC <- (jsonMsg(jsontxt))
}
diff --git a/logger/loggers_test.go b/logger/loggers_test.go
index adc4df016..276b65b78 100644
--- a/logger/loggers_test.go
+++ b/logger/loggers_test.go
@@ -15,9 +15,11 @@ type TestLogSystem struct {
level LogLevel
}
-func (ls *TestLogSystem) LogPrint(level LogLevel, msg string) {
+func (ls *TestLogSystem) LogPrint(msg LogMsg) {
ls.mutex.Lock()
- ls.output += msg
+ if ls.level >= msg.Level() {
+ ls.output += msg.String()
+ }
ls.mutex.Unlock()
}
@@ -47,9 +49,9 @@ type blockedLogSystem struct {
unblock chan struct{}
}
-func (ls blockedLogSystem) LogPrint(level LogLevel, msg string) {
+func (ls blockedLogSystem) LogPrint(msg LogMsg) {
<-ls.unblock
- ls.LogSystem.LogPrint(level, msg)
+ ls.LogSystem.LogPrint(msg)
}
func TestLoggerFlush(t *testing.T) {
diff --git a/logger/logsystem.go b/logger/logsystem.go
index 1318a9f96..995cf4240 100644
--- a/logger/logsystem.go
+++ b/logger/logsystem.go
@@ -9,9 +9,7 @@ import (
// LogSystem is implemented by log output devices.
// All methods can be called concurrently from multiple goroutines.
type LogSystem interface {
- GetLogLevel() LogLevel
- SetLogLevel(i LogLevel)
- LogPrint(LogLevel, string)
+ LogPrint(LogMsg)
}
// NewStdLogSystem creates a LogSystem that prints to the given writer.
@@ -26,8 +24,13 @@ type stdLogSystem struct {
level uint32
}
-func (t *stdLogSystem) LogPrint(level LogLevel, msg string) {
- t.logger.Print(msg)
+func (t *stdLogSystem) LogPrint(msg LogMsg) {
+ stdmsg, ok := msg.(stdMsg)
+ if ok {
+ if t.GetLogLevel() >= stdmsg.Level() {
+ t.logger.Print(stdmsg.String())
+ }
+ }
}
func (t *stdLogSystem) SetLogLevel(i LogLevel) {
@@ -38,50 +41,20 @@ func (t *stdLogSystem) GetLogLevel() LogLevel {
return LogLevel(atomic.LoadUint32(&t.level))
}
-// NewRawLogSystem creates a LogSystem that prints to the given writer without
-// adding extra information. Suitable for preformatted output
-func NewRawLogSystem(writer io.Writer, flags int, level LogLevel) LogSystem {
+// NewJSONLogSystem creates a LogSystem that prints to the given writer without
+// adding extra information irrespective of loglevel only if message is JSON type
+func NewJsonLogSystem(writer io.Writer) LogSystem {
logger := log.New(writer, "", 0)
- return &rawLogSystem{logger, uint32(level)}
-}
-
-type rawLogSystem struct {
- logger *log.Logger
- level uint32
-}
-
-func (t *rawLogSystem) LogPrint(level LogLevel, msg string) {
- t.logger.Print(msg)
-}
-
-func (t *rawLogSystem) SetLogLevel(i LogLevel) {
- atomic.StoreUint32(&t.level, uint32(i))
-}
-
-func (t *rawLogSystem) GetLogLevel() LogLevel {
- return LogLevel(atomic.LoadUint32(&t.level))
-}
-
-// NewRawLogSystem creates a LogSystem that prints to the given writer without
-// adding extra information. Suitable for preformatted output
-func NewJsonLogSystem(writer io.Writer, flags int, level LogLevel) LogSystem {
- logger := log.New(writer, "", 0)
- return &jsonLogSystem{logger, uint32(level)}
+ return &jsonLogSystem{logger}
}
type jsonLogSystem struct {
logger *log.Logger
- level uint32
}
-func (t *jsonLogSystem) LogPrint(level LogLevel, msg string) {
- t.logger.Print(msg)
-}
-
-func (t *jsonLogSystem) SetLogLevel(i LogLevel) {
- atomic.StoreUint32(&t.level, uint32(i))
-}
-
-func (t *jsonLogSystem) GetLogLevel() LogLevel {
- return LogLevel(atomic.LoadUint32(&t.level))
+func (t *jsonLogSystem) LogPrint(msg LogMsg) {
+ jsonmsg, ok := msg.(jsonMsg)
+ if ok {
+ t.logger.Print(jsonmsg.String())
+ }
}
diff --git a/logger/sys.go b/logger/sys.go
index db4251a52..c4d5c382a 100644
--- a/logger/sys.go
+++ b/logger/sys.go
@@ -1,16 +1,40 @@
package logger
import (
+ "fmt"
"sync"
)
-type message struct {
+type stdMsg struct {
level LogLevel
msg string
}
+type jsonMsg []byte
+
+func (m jsonMsg) Level() LogLevel {
+ return 0
+}
+
+func (m jsonMsg) String() string {
+ return string(m)
+}
+
+type LogMsg interface {
+ Level() LogLevel
+ fmt.Stringer
+}
+
+func (m stdMsg) Level() LogLevel {
+ return m.level
+}
+
+func (m stdMsg) String() string {
+ return m.msg
+}
+
var (
- logMessageC = make(chan message)
+ logMessageC = make(chan LogMsg)
addSystemC = make(chan LogSystem)
flushC = make(chan chan struct{})
resetC = make(chan chan struct{})
@@ -27,11 +51,11 @@ const sysBufferSize = 500
func dispatchLoop() {
var (
systems []LogSystem
- systemIn []chan message
+ systemIn []chan LogMsg
systemWG sync.WaitGroup
)
bootSystem := func(sys LogSystem) {
- in := make(chan message, sysBufferSize)
+ in := make(chan LogMsg, sysBufferSize)
systemIn = append(systemIn, in)
systemWG.Add(1)
go sysLoop(sys, in, &systemWG)
@@ -73,18 +97,9 @@ func dispatchLoop() {
}
}
-func sysLoop(sys LogSystem, in <-chan message, wg *sync.WaitGroup) {
+func sysLoop(sys LogSystem, in <-chan LogMsg, wg *sync.WaitGroup) {
for msg := range in {
- switch sys.(type) {
- case *jsonLogSystem:
- if msg.level == JsonLevel {
- sys.LogPrint(msg.level, msg.msg)
- }
- default:
- if sys.GetLogLevel() >= msg.level {
- sys.LogPrint(msg.level, msg.msg)
- }
- }
+ sys.LogPrint(msg)
}
wg.Done()
}