Create & Init Project...

app/service/bbq/comment/internal/dao/BUILD

@@ -0,0 +1,36 @@
+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = ["dao.go"],
+    importpath = "go-common/app/service/bbq/comment/internal/dao",
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//library/cache/memcache:go_default_library",
+        "//library/cache/redis:go_default_library",
+        "//library/conf/paladin:go_default_library",
+        "//library/database/sql:go_default_library",
+        "//library/log:go_default_library",
+        "//library/time: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/bbq/comment/internal/dao/dao.go

@@ -0,0 +1,95 @@
+package dao
+
+import (
+	"context"
+	"time"
+
+	"go-common/library/cache/memcache"
+	"go-common/library/cache/redis"
+	"go-common/library/conf/paladin"
+	"go-common/library/database/sql"
+	"go-common/library/log"
+	xtime "go-common/library/time"
+)
+
+// Dao dao.
+type Dao struct {
+	db          *sql.DB
+	redis       *redis.Pool
+	redisExpire int32
+	mc          *memcache.Pool
+	mcExpire    int32
+}
+
+func checkErr(err error) {
+	if err != nil {
+		panic(err)
+	}
+}
+
+// New new a dao and return.
+func New() (dao *Dao) {
+	var (
+		dc struct {
+			Demo *sql.Config
+		}
+		rc struct {
+			Demo       *redis.Config
+			DemoExpire xtime.Duration
+		}
+		mc struct {
+			Demo       *memcache.Config
+			DemoExpire xtime.Duration
+		}
+	)
+	checkErr(paladin.Get("mysql.toml").UnmarshalTOML(&dc))
+	checkErr(paladin.Get("redis.toml").UnmarshalTOML(&rc))
+	checkErr(paladin.Get("memcache.toml").UnmarshalTOML(&mc))
+	dao = &Dao{
+		// mysql
+		db: sql.NewMySQL(dc.Demo),
+		// redis
+		redis:       redis.NewPool(rc.Demo),
+		redisExpire: int32(time.Duration(rc.DemoExpire) / time.Second),
+		// memcache
+		mc:       memcache.NewPool(mc.Demo),
+		mcExpire: int32(time.Duration(mc.DemoExpire) / time.Second),
+	}
+	return
+}
+
+// Close close the resource.
+func (d *Dao) Close() {
+	d.mc.Close()
+	d.redis.Close()
+	d.db.Close()
+}
+
+// Ping ping the resource.
+func (d *Dao) Ping(ctx context.Context) (err error) {
+	if err = d.pingMC(ctx); err != nil {
+		return
+	}
+	if err = d.pingRedis(ctx); err != nil {
+		return
+	}
+	return d.db.Ping(ctx)
+}
+
+func (d *Dao) pingMC(ctx context.Context) (err error) {
+	conn := d.mc.Get(ctx)
+	defer conn.Close()
+	if err = conn.Set(&memcache.Item{Key: "ping", Value: []byte("pong"), Expiration: 0}); err != nil {
+		log.Error("conn.Set(PING) error(%v)", err)
+	}
+	return
+}
+
+func (d *Dao) pingRedis(ctx context.Context) (err error) {
+	conn := d.redis.Get(ctx)
+	defer conn.Close()
+	if _, err = conn.Do("SET", "ping", "pong"); err != nil {
+		log.Error("conn.Set(PING) error(%v)", err)
+	}
+	return
+}