Golang String Examples

Example #1

File: connmux_test.go Project: hillzhang/log_collection

func TestConnMux(t *testing.T) {
	c, err := redistest.Dial()
	if err != nil {
		t.Fatalf("error connection to database, %v", err)
	}
	m := redisx.NewConnMux(c)
	defer m.Close()

	c1 := m.Get()
	c2 := m.Get()
	c1.Send("ECHO", "hello")
	c2.Send("ECHO", "world")
	c1.Flush()
	c2.Flush()
	s, err := redis.String(c1.Receive())
	if err != nil {
		t.Fatal(err)
	}
	if s != "hello" {
		t.Fatalf("echo returned %q, want %q", s, "hello")
	}
	s, err = redis.String(c2.Receive())
	if err != nil {
		t.Fatal(err)
	}
	if s != "world" {
		t.Fatalf("echo returned %q, want %q", s, "world")
	}
	c1.Close()
	c2.Close()
}

Example #2

File: sess_redis.go Project: hillzhang/log_collection

// generate new sid for redis session
func (rp *RedisProvider) SessionRegenerate(oldsid, sid string) (session.SessionStore, error) {
	c := rp.poollist.Get()
	defer c.Close()

	if existed, _ := redis.Int(c.Do("EXISTS", oldsid)); existed == 0 {
		// oldsid doesn't exists, set the new sid directly
		// ignore error here, since if it return error
		// the existed value will be 0
		c.Do("SET", sid, "", "EX", rp.maxlifetime)
	} else {
		c.Do("RENAME", oldsid, sid)
		c.Do("EXPIRE", sid, rp.maxlifetime)
	}

	kvs, err := redis.String(c.Do("GET", sid))
	var kv map[interface{}]interface{}
	if len(kvs) == 0 {
		kv = make(map[interface{}]interface{})
	} else {
		kv, err = session.DecodeGob([]byte(kvs))
		if err != nil {
			return nil, err
		}
	}

	rs := &RedisSessionStore{p: rp.poollist, sid: sid, values: kv, maxlifetime: rp.maxlifetime}
	return rs, nil
}

Example #3

File: reply_test.go Project: hillzhang/log_collection

func ExampleString() {
	c, err := dial()
	if err != nil {
		fmt.Println(err)
		return
	}
	defer c.Close()

	c.Do("SET", "hello", "world")
	s, err := redis.String(c.Do("GET", "hello"))
	fmt.Printf("%#v\n", s)
	// Output:
	// "world"
}

Example #4

File: sess_redis.go Project: hillzhang/log_collection

// read redis session by sid
func (rp *RedisProvider) SessionRead(sid string) (session.SessionStore, error) {
	c := rp.poollist.Get()
	defer c.Close()

	kvs, err := redis.String(c.Do("GET", sid))
	var kv map[interface{}]interface{}
	if len(kvs) == 0 {
		kv = make(map[interface{}]interface{})
	} else {
		kv, err = session.DecodeGob([]byte(kvs))
		if err != nil {
			return nil, err
		}
	}

	rs := &RedisSessionStore{p: rp.poollist, sid: sid, values: kv, maxlifetime: rp.maxlifetime}
	return rs, nil
}

Example #5

File: zpop_example_test.go Project: hillzhang/log_collection

// This example implements ZPOP as described at
// http://redis.io/topics/transactions using WATCH/MULTI/EXEC and scripting.
func Example_zpop() {
	c, err := dial()
	if err != nil {
		fmt.Println(err)
		return
	}
	defer c.Close()

	// Add test data using a pipeline.

	for i, member := range []string{"red", "blue", "green"} {
		c.Send("ZADD", "zset", i, member)
	}
	if _, err := c.Do(""); err != nil {
		fmt.Println(err)
		return
	}

	// Pop using WATCH/MULTI/EXEC

	v, err := zpop(c, "zset")
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println(v)

	// Pop using a script.

	v, err = redis.String(zpopScript.Do(c, "zset"))
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println(v)

	// Output:
	// red
	// blue
}

Example #6

File: redis_test.go Project: hillzhang/log_collection

func TestRedisCache(t *testing.T) {
	bm, err := cache.NewCache("redis", `{"conn": "127.0.0.1:6379"}`)
	if err != nil {
		t.Error("init err")
	}
	if err = bm.Put("astaxie", 1, 10); err != nil {
		t.Error("set Error", err)
	}
	if !bm.IsExist("astaxie") {
		t.Error("check err")
	}

	time.Sleep(10 * time.Second)

	if bm.IsExist("astaxie") {
		t.Error("check err")
	}
	if err = bm.Put("astaxie", 1, 10); err != nil {
		t.Error("set Error", err)
	}

	if v, _ := redis.Int(bm.Get("astaxie"), err); v != 1 {
		t.Error("get err")
	}

	if err = bm.Incr("astaxie"); err != nil {
		t.Error("Incr Error", err)
	}

	if v, _ := redis.Int(bm.Get("astaxie"), err); v != 2 {
		t.Error("get err")
	}

	if err = bm.Decr("astaxie"); err != nil {
		t.Error("Decr Error", err)
	}

	if v, _ := redis.Int(bm.Get("astaxie"), err); v != 1 {
		t.Error("get err")
	}
	bm.Delete("astaxie")
	if bm.IsExist("astaxie") {
		t.Error("delete err")
	}

	//test string
	if err = bm.Put("astaxie", "author", 10); err != nil {
		t.Error("set Error", err)
	}
	if !bm.IsExist("astaxie") {
		t.Error("check err")
	}

	if v, _ := redis.String(bm.Get("astaxie"), err); v != "author" {
		t.Error("get err")
	}

	//test GetMulti
	if err = bm.Put("astaxie1", "author1", 10); err != nil {
		t.Error("set Error", err)
	}
	if !bm.IsExist("astaxie1") {
		t.Error("check err")
	}

	vv := bm.GetMulti([]string{"astaxie", "astaxie1"})
	if len(vv) != 2 {
		t.Error("GetMulti ERROR")
	}
	if v, _ := redis.String(vv[0], nil); v != "author" {
		t.Error("GetMulti ERROR")
	}
	if v, _ := redis.String(vv[1], nil); v != "author1" {
		t.Error("GetMulti ERROR")
	}

	// test clear all
	if err = bm.ClearAll(); err != nil {
		t.Error("clear all err")
	}
}