79 lines
1.6 KiB
Go
79 lines
1.6 KiB
Go
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/*
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Copyright 2014 SAP SE
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package sqltrace
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import (
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"flag"
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"log"
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"os"
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"sync"
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)
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type sqlTrace struct {
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mu sync.RWMutex //protects field on
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on bool
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*log.Logger
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}
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func newSQLTrace() *sqlTrace {
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return &sqlTrace{
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Logger: log.New(os.Stdout, "hdb ", log.Ldate|log.Ltime|log.Lshortfile),
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}
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}
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var tracer = newSQLTrace()
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func init() {
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flag.BoolVar(&tracer.on, "hdb.sqlTrace", false, "enabling hdb sql trace")
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}
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// On returns if tracing methods output is active.
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func On() bool {
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tracer.mu.RLock()
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on := tracer.on
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tracer.mu.RUnlock()
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return on
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}
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// SetOn sets tracing methods output active or inactive.
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func SetOn(on bool) {
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tracer.mu.Lock()
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tracer.on = on
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tracer.mu.Unlock()
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}
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// Trace calls trace logger Print method to print to the trace logger.
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func Trace(v ...interface{}) {
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if On() {
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tracer.Print(v...)
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}
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}
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// Tracef calls trace logger Printf method to print to the trace logger.
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func Tracef(format string, v ...interface{}) {
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if On() {
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tracer.Printf(format, v...)
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}
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}
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// Traceln calls trace logger Println method to print to the trace logger.
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func Traceln(v ...interface{}) {
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if On() {
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tracer.Println(v...)
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}
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}
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