Create & Init Project...

app/service/main/videoup/dao/databus/BUILD

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+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_test",
+    "go_library",
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = [
+        "dao_test.go",
+        "redis_test.go",
+    ],
+    embed = [":go_default_library"],
+    rundir = ".",
+    tags = ["automanaged"],
+    deps = [
+        "//app/service/main/videoup/conf:go_default_library",
+        "//vendor/github.com/smartystreets/goconvey/convey:go_default_library",
+    ],
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "dao.go",
+        "redis.go",
+    ],
+    importpath = "go-common/app/service/main/videoup/dao/databus",
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//app/service/main/videoup/conf:go_default_library",
+        "//app/service/main/videoup/model/message:go_default_library",
+        "//library/cache/redis:go_default_library",
+        "//library/log:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

app/service/main/videoup/dao/databus/dao.go

@@ -0,0 +1,40 @@
+package databus
+
+import (
+	"context"
+
+	"go-common/app/service/main/videoup/conf"
+	"go-common/library/cache/redis"
+	"go-common/library/log"
+)
+
+// Dao is redis dao.
+type Dao struct {
+	c *conf.Config
+	// redis
+	redis *redis.Pool
+}
+
+//New  .
+func New(c *conf.Config) (d *Dao) {
+	d = &Dao{
+		c:     c,
+		redis: redis.NewPool(c.Redis.Track.Config),
+	}
+	return d
+}
+
+// Ping ping redis.
+func (d *Dao) Ping(c context.Context) (err error) {
+	conn := d.redis.Get(c)
+	if _, err = conn.Do("SET", "ping", "pong"); err != nil {
+		log.Error("conn.Do(SET) error(%v)", err)
+	}
+	conn.Close()
+	return
+}
+
+//Close .
+func (d *Dao) Close() {
+	d.redis.Close()
+}

app/service/main/videoup/dao/databus/dao_test.go

@@ -0,0 +1,33 @@
+package databus
+
+import (
+	"flag"
+	"go-common/app/service/main/videoup/conf"
+	"os"
+	"testing"
+)
+
+var (
+	d *Dao
+)
+
+func TestMain(m *testing.M) {
+	if os.Getenv("DEPLOY_ENV") != "" {
+		flag.Set("app_id", "main.archive.videoup-service")
+		flag.Set("conf_token", "4b62721602981eb3635dba3b0d866ac5")
+		flag.Set("tree_id", "2308")
+		flag.Set("conf_version", "docker-1")
+		flag.Set("deploy_env", "uat")
+		flag.Set("conf_host", "config.bilibili.co")
+		flag.Set("conf_path", "/tmp")
+		flag.Set("region", "sh")
+		flag.Set("zone", "sh001")
+	}
+	flag.Parse()
+	if err := conf.Init(); err != nil {
+		panic(err)
+	}
+	d = New(conf.Conf)
+	m.Run()
+	os.Exit(0)
+}

app/service/main/videoup/dao/databus/redis.go

@@ -0,0 +1,86 @@
+package databus
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"go-common/app/service/main/videoup/model/message"
+	"go-common/library/cache/redis"
+	"go-common/library/log"
+)
+
+const (
+	_prefixMsgInfo = "videoup_service_msg"
+	_preLock       = "lock_"
+)
+
+func lockKey(key string) string {
+	return fmt.Sprintf("%s%s", _preLock, key)
+}
+
+// PopMsgCache get databus message from redis
+func (d *Dao) PopMsgCache(c context.Context) (msg *message.Videoup, err error) {
+	var (
+		conn = d.redis.Get(c)
+		bs   []byte
+	)
+	defer conn.Close()
+	if bs, err = redis.Bytes(conn.Do("LPOP", _prefixMsgInfo)); err != nil {
+		if err == redis.ErrNil {
+			err = nil
+		} else {
+			log.Error("conn.Do(LPOP, %s) error(%v)", _prefixMsgInfo, err)
+		}
+		return
+	}
+	msg = &message.Videoup{}
+	if err = json.Unmarshal(bs, msg); err != nil {
+		log.Error("json.Unmarshal error(%v)", err)
+	}
+	return
+}
+
+// PushMsgCache add message into redis.
+func (d *Dao) PushMsgCache(c context.Context, msg *message.Videoup) (err error) {
+	var (
+		bs   []byte
+		conn = d.redis.Get(c)
+	)
+	defer conn.Close()
+	if bs, err = json.Marshal(msg); err != nil {
+		log.Error("json.Marshal(%s) error(%v)", bs, err)
+		return
+	}
+	if _, err = conn.Do("RPUSH", _prefixMsgInfo, bs); err != nil {
+		log.Error("conn.Do(RPUSH, %s) error(%v)", bs, err)
+	}
+	return
+}
+
+//Lock .
+func (d *Dao) Lock(ctx context.Context, key string, ttl int) (gotLock bool, err error) {
+	var lockValue = "1"
+	conn := d.redis.Get(ctx)
+	defer conn.Close()
+	realKey := lockKey(key)
+	var res interface{}
+	//ttl 毫秒(PX)  NX 其实就是 SetNX功能
+	res, err = conn.Do("SET", realKey, lockValue, "PX", ttl, "NX")
+	if err != nil {
+		log.Error("redis_lock failed:%s:%s", realKey, err.Error())
+		return
+	}
+	if res != nil {
+		gotLock = true
+	}
+	return
+}
+
+//UnLock .
+func (d *Dao) UnLock(ctx context.Context, key string) (err error) {
+	realKey := lockKey(key)
+	conn := d.redis.Get(ctx)
+	defer conn.Close()
+	_, err = conn.Do("DEL", realKey)
+	return
+}

app/service/main/videoup/dao/databus/redis_test.go

@@ -0,0 +1,36 @@
+package databus
+
+import (
+	"context"
+	"testing"
+
+	"github.com/smartystreets/goconvey/convey"
+)
+
+func TestDatabusLock(t *testing.T) {
+	var (
+		c   = context.TODO()
+		key = ""
+		ttl = int(0)
+	)
+	convey.Convey("Lock", t, func(ctx convey.C) {
+		gotLock, err := d.Lock(c, key, ttl)
+		ctx.Convey("Then err should be nil.gotLock should not be nil.", func(ctx convey.C) {
+			ctx.So(err, convey.ShouldBeNil)
+			ctx.So(gotLock, convey.ShouldNotBeNil)
+		})
+	})
+}
+
+func TestDatabusUnLock(t *testing.T) {
+	var (
+		c   = context.TODO()
+		key = ""
+	)
+	convey.Convey("UnLock", t, func(ctx convey.C) {
+		err := d.UnLock(c, key)
+		ctx.Convey("Then err should be nil.", func(ctx convey.C) {
+			ctx.So(err, convey.ShouldBeNil)
+		})
+	})
+}