func ExampleSetExpression() {
server := dhash.NewNodeDir("127.0.0.1:2020", "127.0.0.1:2020", "").MustStart()
defer server.Stop()
conn := client.MustConn("127.0.0.1:2020")
conn.SubPut([]byte("myfriends"), []byte("alice"), setop.EncodeFloat64(10))
conn.SubPut([]byte("myfriends"), []byte("bob"), setop.EncodeFloat64(5))
conn.SubPut([]byte("yourfriends"), []byte("bob"), setop.EncodeFloat64(6))
conn.SubPut([]byte("yourfriends"), []byte("charlie"), setop.EncodeFloat64(4))
fmt.Printf("name score\n")
for _, friend := range conn.SetExpression(setop.SetExpression{
Code: "(U:FloatSum myfriends yourfriends)",
}) {
fmt.Printf("%v %v\n", string(friend.Key), fmt.Sprint(setop.DecodeFloat64(friend.Values[0])))
}
// Output:
// name score
// alice 10 <nil>
// bob 11 <nil>
// charlie 4 <nil>
}
func ExampleTreeMirror() {
server := dhash.NewNodeDir("127.0.0.1:3030", "127.0.0.1:3030", "").MustStart()
defer server.Stop()
conn := client.MustConn("127.0.0.1:3030")
conn.SubAddConfiguration([]byte("myfriends"), "mirrored", "yes")
conn.SubPut([]byte("myfriends"), []byte("alice"), setop.EncodeFloat64(10))
conn.SubPut([]byte("myfriends"), []byte("bob"), setop.EncodeFloat64(5))
conn.SubPut([]byte("myfriends"), []byte("charlie"), setop.EncodeFloat64(6))
conn.SubPut([]byte("myfriends"), []byte("denise"), setop.EncodeFloat64(4))
fmt.Printf("name score\n")
for _, friend := range conn.MirrorReverseSlice([]byte("myfriends"), nil, nil, true, true) {
fmt.Printf("%v %v\n", fmt.Sprint(setop.DecodeFloat64(friend.Key)), string(friend.Value))
}
// Output:
// name score
// 10 <nil> alice
// 6 <nil> charlie
// 5 <nil> bob
// 4 <nil> denise
}
func decode(b []byte) string {
switch *enc {
case stringFormat:
return string(b)
case floatFormat:
res, err := setop.DecodeFloat64(b)
if err != nil {
return fmt.Sprint(b)
}
return fmt.Sprint(res)
case intFormat:
res, err := setop.DecodeInt64(b)
if err != nil {
return fmt.Sprint(b)
}
return fmt.Sprint(res)
case bigFormat:
return fmt.Sprint(setop.DecodeBigInt(b))
}
panic(fmt.Errorf("Unknown encoding: %v", *enc))
}