[VOL-2538] Logging - Implement dynamic log levels in ofagent
Change-Id: I9582230d9d3c34ea84339fddf2b2f3b3d2804808
diff --git a/vendor/github.com/coreos/pkg/capnslog/glog_formatter.go b/vendor/github.com/coreos/pkg/capnslog/glog_formatter.go
new file mode 100644
index 0000000..426603e
--- /dev/null
+++ b/vendor/github.com/coreos/pkg/capnslog/glog_formatter.go
@@ -0,0 +1,96 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package capnslog
+
+import (
+ "bufio"
+ "bytes"
+ "io"
+ "os"
+ "runtime"
+ "strconv"
+ "strings"
+ "time"
+)
+
+var pid = os.Getpid()
+
+type GlogFormatter struct {
+ StringFormatter
+}
+
+func NewGlogFormatter(w io.Writer) *GlogFormatter {
+ g := &GlogFormatter{}
+ g.w = bufio.NewWriter(w)
+ return g
+}
+
+func (g GlogFormatter) Format(pkg string, level LogLevel, depth int, entries ...interface{}) {
+ g.w.Write(GlogHeader(level, depth+1))
+ g.StringFormatter.Format(pkg, level, depth+1, entries...)
+}
+
+func GlogHeader(level LogLevel, depth int) []byte {
+ // Lmmdd hh:mm:ss.uuuuuu threadid file:line]
+ now := time.Now().UTC()
+ _, file, line, ok := runtime.Caller(depth) // It's always the same number of frames to the user's call.
+ if !ok {
+ file = "???"
+ line = 1
+ } else {
+ slash := strings.LastIndex(file, "/")
+ if slash >= 0 {
+ file = file[slash+1:]
+ }
+ }
+ if line < 0 {
+ line = 0 // not a real line number
+ }
+ buf := &bytes.Buffer{}
+ buf.Grow(30)
+ _, month, day := now.Date()
+ hour, minute, second := now.Clock()
+ buf.WriteString(level.Char())
+ twoDigits(buf, int(month))
+ twoDigits(buf, day)
+ buf.WriteByte(' ')
+ twoDigits(buf, hour)
+ buf.WriteByte(':')
+ twoDigits(buf, minute)
+ buf.WriteByte(':')
+ twoDigits(buf, second)
+ buf.WriteByte('.')
+ buf.WriteString(strconv.Itoa(now.Nanosecond() / 1000))
+ buf.WriteByte('Z')
+ buf.WriteByte(' ')
+ buf.WriteString(strconv.Itoa(pid))
+ buf.WriteByte(' ')
+ buf.WriteString(file)
+ buf.WriteByte(':')
+ buf.WriteString(strconv.Itoa(line))
+ buf.WriteByte(']')
+ buf.WriteByte(' ')
+ return buf.Bytes()
+}
+
+const digits = "0123456789"
+
+func twoDigits(b *bytes.Buffer, d int) {
+ c2 := digits[d%10]
+ d /= 10
+ c1 := digits[d%10]
+ b.WriteByte(c1)
+ b.WriteByte(c2)
+}