[FAB-6356] enable/disable callerinfo by module/loglevel

For Go-SDK, by default enabled it for all log levels
for sdk-go log module.

Restructured current package structure,
logging/logger.go - basic implementation
logging/default/* - default logger, level, callerinfo
logging/utils/* - moved common utility here to
avoid "import cycle not allowed in test" error


Change-Id: I29d7e635861168d615ef5fb082f8d2b9a12f2fe2
Signed-off-by: Sudesh Shetty <sudesh.shetty@securekey.com>

api/apilogging/logger.go

@@ -54,9 +54,16 @@ type Logger interface {
 // Level defines all available log levels for log messages.
 type Level int
 
-// Leveled interface is the interface required to be able to add leveled logging.
-type Leveled interface {
-	GetLevel(string) Level
-	SetLevel(Level, string)
-	IsEnabledFor(Level, string) bool
+// Log levels.
+const (
+	CRITICAL Level = iota
+	ERROR
+	WARNING
+	INFO
+	DEBUG
+)
+
+//LoggingProvider - logging provider factory
+type LoggingProvider interface {
+	GetLogger(module string) Logger
 }

def/fabapi/fabapi.go

@@ -16,6 +16,8 @@ import (
 	"github.com/hyperledger/fabric-sdk-go/def/fabapi/context/defprovider"
 	"github.com/hyperledger/fabric-sdk-go/def/fabapi/opt"
 	"github.com/hyperledger/fabric-sdk-go/pkg/errors"
+	"github.com/hyperledger/fabric-sdk-go/pkg/logging"
+	"github.com/hyperledger/fabric-sdk-go/pkg/logging/deflogger"
 	"github.com/hyperledger/fabric-sdk-go/third_party/github.com/hyperledger/fabric/bccsp"
 )
 
@@ -72,6 +74,11 @@ func NewSDK(options Options) (*FabricSDK, error) {
 		Options: options,
 	}
 
+	//Initialize logging provider with default logging provider if not yet initialized
+	if !logging.IsLoggerInitialized() {
+		logging.InitLogger(deflogger.GetLoggingProvider())
+	}
+
 	// Initialize default factories (if needed)
 	if sdk.ProviderFactory == nil {
 		sdk.ProviderFactory = defprovider.NewDefaultProviderFactory()

internal/github.com/hyperledger/fabric/sdkpatch/logbridge/logbridge.go

@@ -52,5 +52,5 @@ func (l *Logger) Warning(args ...interface{}) {
 
 // IsEnabledFor bridges calls to the Go SDK logger's IsEnabledFor.
 func (l *Logger) IsEnabledFor(level apilogging.Level) bool {
-	return logging.IsEnabledFor(level, l.module)
+	return logging.IsEnabledFor(l.module, level)
 }

pkg/config/config.go

@@ -76,7 +76,7 @@ func InitConfigWithCmdRoot(configFile string, cmdRootPrefix string) (*Config, er
 	}
 
 	loggingLevelString := myViper.GetString("client.logging.level")
-	logLevel := logging.INFO
+	logLevel := apilogging.INFO
 	if loggingLevelString != "" {
 		logger.Infof("fabric_sdk_go Logging level from the config: %v", loggingLevelString)
 		var err error
@@ -85,7 +85,7 @@ func InitConfigWithCmdRoot(configFile string, cmdRootPrefix string) (*Config, er
 			panic(err)
 		}
 	}
-	logging.SetLevel(apilogging.Level(logLevel), "fabric_sdk_go")
+	logging.SetLevel("fabric_sdk_go", logLevel)
 
 	logger.Infof("fabric_sdk_go Logging level is finally set to: %s", logging.GetLevel("fabric_sdk_go"))
 	return &Config{tlsCertPool: x509.NewCertPool(), configViper: myViper}, nil

pkg/fabric-txn/selection/dynamicselection/dynamicselection_test.go

@@ -13,6 +13,7 @@ import (
 	"github.com/golang/protobuf/proto"
 	"github.com/hyperledger/fabric-sdk-go/api/apiconfig"
 	"github.com/hyperledger/fabric-sdk-go/api/apifabclient"
+	"github.com/hyperledger/fabric-sdk-go/api/apilogging"
 	"github.com/hyperledger/fabric-sdk-go/def/fabapi"
 	"github.com/hyperledger/fabric-sdk-go/def/fabapi/context/defprovider"
 	"github.com/hyperledger/fabric-sdk-go/internal/github.com/hyperledger/fabric/core/common/ccprovider"
@@ -167,8 +168,8 @@ func verify(t *testing.T, service apifabclient.SelectionService, expectedPeerGro
 	// Set the log level to WARNING since the following spits out too much info in DEBUG
 	module := "pg-resolver"
 	level := logging.GetLevel(module)
-	logging.SetLevel(logging.WARNING, module)
-	defer logging.SetLevel(level, module)
+	logging.SetLevel(module, apilogging.WARNING)
+	defer logging.SetLevel(module, level)
 
 	for i := 0; i < len(expectedPeerGroups); i++ {
 		peers, err := service.GetEndorsersForChaincode(channelPeers, chaincodeIDs...)