138 lines
4 KiB
Go
138 lines
4 KiB
Go
// Copyright 2013 Beego Authors
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// Copyright 2014 The Macaron Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"): you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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package toolbox
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import (
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"encoding/json"
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"fmt"
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"io"
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"strings"
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"sync"
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"time"
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)
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// Statistics struct
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type Statistics struct {
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RequestUrl string
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RequestNum int64
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MinTime time.Duration
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MaxTime time.Duration
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TotalTime time.Duration
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}
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// UrlMap contains several statistics struct to log different data
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type UrlMap struct {
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lock sync.RWMutex
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LengthLimit int // limit the urlmap's length if it's equal to 0 there's no limit
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urlmap map[string]map[string]*Statistics
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}
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// add statistics task.
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// it needs request method, request url and statistics time duration
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func (m *UrlMap) AddStatistics(requestMethod, requestUrl string, requesttime time.Duration) {
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m.lock.Lock()
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defer m.lock.Unlock()
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if method, ok := m.urlmap[requestUrl]; ok {
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if s, ok := method[requestMethod]; ok {
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s.RequestNum += 1
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if s.MaxTime < requesttime {
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s.MaxTime = requesttime
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}
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if s.MinTime > requesttime {
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s.MinTime = requesttime
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}
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s.TotalTime += requesttime
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} else {
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nb := &Statistics{
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RequestUrl: requestUrl,
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RequestNum: 1,
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MinTime: requesttime,
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MaxTime: requesttime,
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TotalTime: requesttime,
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}
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m.urlmap[requestUrl][requestMethod] = nb
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}
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} else {
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if m.LengthLimit > 0 && m.LengthLimit <= len(m.urlmap) {
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return
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}
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methodmap := make(map[string]*Statistics)
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nb := &Statistics{
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RequestUrl: requestUrl,
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RequestNum: 1,
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MinTime: requesttime,
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MaxTime: requesttime,
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TotalTime: requesttime,
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}
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methodmap[requestMethod] = nb
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m.urlmap[requestUrl] = methodmap
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}
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}
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// put url statistics result in io.Writer
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func (m *UrlMap) GetMap(w io.Writer) {
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m.lock.RLock()
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defer m.lock.RUnlock()
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sep := fmt.Sprintf("+%s+%s+%s+%s+%s+%s+%s+\n", strings.Repeat("-", 51), strings.Repeat("-", 12),
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strings.Repeat("-", 18), strings.Repeat("-", 18), strings.Repeat("-", 18), strings.Repeat("-", 18), strings.Repeat("-", 18))
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fmt.Fprintf(w, sep)
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fmt.Fprintf(w, "| % -50s| % -10s | % -16s | % -16s | % -16s | % -16s | % -16s |\n", "Request URL", "Method", "Times", "Total Used(s)", "Max Used(μs)", "Min Used(μs)", "Avg Used(μs)")
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fmt.Fprintf(w, sep)
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for k, v := range m.urlmap {
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for kk, vv := range v {
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fmt.Fprintf(w, "| % -50s| % -10s | % 16d | % 16f | % 16.6f | % 16.6f | % 16.6f |\n", k,
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kk, vv.RequestNum, vv.TotalTime.Seconds(), float64(vv.MaxTime.Nanoseconds())/1000,
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float64(vv.MinTime.Nanoseconds())/1000, float64(time.Duration(int64(vv.TotalTime)/vv.RequestNum).Nanoseconds())/1000,
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)
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}
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}
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fmt.Fprintf(w, sep)
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}
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type URLMapInfo struct {
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URL string `json:"url"`
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Method string `json:"method"`
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Times int64 `json:"times"`
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TotalUsed float64 `json:"total_used"`
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MaxUsed float64 `json:"max_used"`
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MinUsed float64 `json:"min_used"`
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AvgUsed float64 `json:"avg_used"`
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}
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func (m *UrlMap) JSON(w io.Writer) {
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infos := make([]*URLMapInfo, 0, len(m.urlmap))
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for k, v := range m.urlmap {
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for kk, vv := range v {
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infos = append(infos, &URLMapInfo{
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URL: k,
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Method: kk,
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Times: vv.RequestNum,
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TotalUsed: vv.TotalTime.Seconds(),
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MaxUsed: float64(vv.MaxTime.Nanoseconds()) / 1000,
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MinUsed: float64(vv.MinTime.Nanoseconds()) / 1000,
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AvgUsed: float64(time.Duration(int64(vv.TotalTime)/vv.RequestNum).Nanoseconds()) / 1000,
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})
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}
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}
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if err := json.NewEncoder(w).Encode(infos); err != nil {
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panic("URLMap.JSON: " + err.Error())
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}
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}
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