feat[accesslog]: allow log by condition

accesslog/README.md

@@ -253,3 +253,36 @@ func main() {
 }
 
 ```
+
+### Log By Condition
+
+We can add a method `logConditionFunc` to determine whether to log based on the conditions.
+
+Sample Code:
+
+```go
+package main
+
+import (
+	"context"
+
+	"github.com/cloudwego/hertz/pkg/app"
+	"github.com/cloudwego/hertz/pkg/app/server"
+	"github.com/hertz-contrib/logger/accesslog"
+)
+
+func main() {
+	h := server.Default(server.WithHostPorts(":8081"))
+	h.GET("/ping", func(c context.Context, ctx *app.RequestContext) {
+		ctx.JSON(200, map[string]string{"ping": "pong"})
+	})
+	h.Use(accesslog.New(accesslog.WithLogConditionFunc(func(ctx context.Context, c *app.RequestContext) bool {
+		if c.FullPath() == "/ping" {
+			return false
+		} else {
+			return true
+		}
+	})))
+	h.Spin()
+}
+```

accesslog/accesslog.go

@@ -111,6 +111,10 @@ func new(ctx context.Context, opts ...Option) app.HandlerFunc {
 
 		c.Next(ctx)
 
+		if !cfg.logConditionFunc(ctx, c) {
+			return
+		}
+
 		if cfg.enableLatency {
 			stop = time.Now()
 			c.Set("stop", stop)

accesslog/option.go

@@ -51,6 +51,7 @@ import (
 )
 
 type (
+	logConditionFunc func(ctx context.Context, c *app.RequestContext) bool
 	// options defines the config for middleware.
 	options struct {
 		// format defines the logging tags
@@ -78,6 +79,7 @@ type (
 		// Optional. Default: time.Local
 		timeZoneLocation *time.Location
 		enableLatency    bool
+		logConditionFunc logConditionFunc
 	}
 
 	Option     func(o *options)
@@ -93,6 +95,9 @@ func newOptions(opts ...Option) *options {
 		timeZoneLocation: time.Local,
 		timeInterval:     500 * time.Millisecond,
 		logFunc:          hlog.CtxInfof,
+		logConditionFunc: func(ctx context.Context, c *app.RequestContext) bool {
+			return true
+		},
 	}
 
 	for _, opt := range opts {
@@ -136,3 +141,10 @@ func WithTimeZoneLocation(loc *time.Location) Option {
 		o.timeZoneLocation = loc
 	}
 }
+
+// WithLogConditionFunc set logConditionFunc
+func WithLogConditionFunc(f logConditionFunc) Option {
+	return func(o *options) {
+		o.logConditionFunc = f
+	}
+}