complete apis for the rest of cmds

This commit is contained in:
wenyekui 2014-07-24 11:29:13 +08:00
parent f647c3d815
commit a6a760880d
6 changed files with 1363 additions and 4 deletions

View File

@ -7,9 +7,15 @@ import (
"strings"
)
const ERR_ARGUMENT_FORMAT = "ERR wrong number of arguments for '%s' command"
const (
ERR_ARGUMENT_FORMAT = "ERR wrong number of arguments for '%s' command"
MSG_OK = "OK"
)
var ErrValue = errors.New("ERR value is not an integer or out of range")
var (
ErrValue = errors.New("ERR value is not an integer or out of range")
ErrSyntax = errors.New("ERR syntax error")
)
type commondFunc func(*ledis.DB, ...string) (interface{}, error)

306
server/http/cmd_hash.go Normal file
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@ -0,0 +1,306 @@
package http
import (
"fmt"
"github.com/siddontang/ledisdb/ledis"
"strconv"
)
func hsetCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 3 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hset")
}
key := []byte(args[0])
field := []byte(args[1])
value := []byte(args[2])
if n, err := db.HSet(key, field, value); err != nil {
return nil, err
} else {
return n, err
}
}
func hgetCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hget")
}
key := []byte(args[0])
field := []byte(args[1])
if v, err := db.HGet(key, field); err != nil {
return nil, err
} else {
if v == nil {
return nil, nil
}
return ledis.String(v), nil
}
}
func hexistsCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hexists")
}
key := []byte(args[0])
field := []byte(args[1])
var n int64 = 1
if v, err := db.HGet(key, field); err != nil {
return nil, err
} else {
if v == nil {
n = 0
}
return n, nil
}
}
func hdelCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) < 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hdel")
}
key := []byte(args[0])
fields := make([][]byte, len(args[1:]))
for i, arg := range args[1:] {
fields[i] = []byte(arg)
}
if n, err := db.HDel(key, fields...); err != nil {
return nil, err
} else {
return n, nil
}
}
func hlenCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hlen")
}
key := []byte(args[0])
if n, err := db.HLen(key); err != nil {
return nil, err
} else {
return n, nil
}
}
func hincrbyCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 3 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hincrby")
}
key := []byte(args[0])
field := []byte(args[1])
delta, err := strconv.ParseInt(args[2], 10, 64)
if err != nil {
return nil, ErrValue
}
var n int64
if n, err = db.HIncrBy(key, field, delta); err != nil {
return nil, err
} else {
return n, nil
}
}
func hmsetCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) < 3 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hmset")
}
if len(args[1:])%2 != 0 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hmset")
}
key := []byte(args[0])
args = args[1:]
kvs := make([]ledis.FVPair, len(args)/2)
for i := 0; i < len(kvs); i++ {
kvs[i].Field = []byte(args[2*i])
kvs[i].Value = []byte(args[2*i+1])
}
if err := db.HMset(key, kvs...); err != nil {
return nil, err
} else {
return []interface{}{true, MSG_OK}, nil
}
}
func hmgetCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) < 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hmget")
}
key := []byte(args[0])
fields := make([][]byte, len(args[1:]))
for i, arg := range args[1:] {
fields[i] = []byte(arg)
}
if vals, err := db.HMget(key, fields...); err != nil {
return nil, err
} else {
arr := make([]interface{}, len(vals))
for i, v := range vals {
if v == nil {
arr[i] = nil
} else {
arr[i] = ledis.String(v)
}
}
return arr, nil
}
}
func hgetallCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hgetall")
}
key := []byte(args[0])
if fvs, err := db.HGetAll(key); err != nil {
return nil, err
} else {
var m = make(map[string]string)
for _, fv := range fvs {
m[ledis.String(fv.Field)] = ledis.String(fv.Value)
}
return m, nil
}
}
func hkeysCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hkeys")
}
key := []byte(args[0])
if v, err := db.HKeys(key); err != nil {
return nil, err
} else {
return v, nil
}
}
func hvalsCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hvals")
}
key := []byte(args[0])
if vals, err := db.HValues(key); err != nil {
return nil, err
} else {
var arr = make([]string, len(vals))
for i, v := range vals {
arr[i] = ledis.String(v)
}
return arr, nil
}
}
func hclearCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hclear")
}
key := []byte(args[0])
if n, err := db.HClear(key); err != nil {
return nil, err
} else {
return n, nil
}
}
func hmclearCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) < 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hmclear")
}
keys := make([][]byte, len(args))
for i, arg := range args {
keys[i] = []byte(arg)
}
if n, err := db.HMclear(keys...); err != nil {
return nil, err
} else {
return n, nil
}
}
func hexpireCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hexpire")
}
key := []byte(args[0])
duration, err := strconv.ParseInt(args[1], 10, 64)
if err != nil {
return nil, ErrValue
}
if v, err := db.HExpire(key, duration); err != nil {
return nil, err
} else {
return v, nil
}
}
func hexpireAtCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hexpireat")
}
key := []byte(args[0])
when, err := strconv.ParseInt(args[1], 10, 64)
if err != nil {
return nil, ErrValue
}
if v, err := db.HExpireAt(key, when); err != nil {
return nil, err
} else {
return v, nil
}
}
func httlCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "httl")
}
key := []byte(args[0])
if v, err := db.HTTL(key); err != nil {
return nil, err
} else {
return v, nil
}
}
func hpersistCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "hpersist")
}
key := []byte(args[0])
if n, err := db.HPersist(key); err != nil {
return nil, err
} else {
return n, err
}
}
func init() {
register("hdel", hdelCommand)
register("hexists", hexistsCommand)
register("hget", hgetCommand)
register("hgetall", hgetallCommand)
register("hincrby", hincrbyCommand)
register("hkeys", hkeysCommand)
register("hlen", hlenCommand)
register("hmget", hmgetCommand)
register("hmset", hmsetCommand)
register("hset", hsetCommand)
register("hvals", hvalsCommand)
//ledisdb special command
register("hclear", hclearCommand)
register("hmclear", hmclearCommand)
register("hexpire", hexpireCommand)
register("hexpireat", hexpireAtCommand)
register("httl", httlCommand)
register("hpersist", hpersistCommand)
}

278
server/http/cmd_kv.go Normal file
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@ -0,0 +1,278 @@
package http
import (
"fmt"
"github.com/siddontang/ledisdb/ledis"
"strconv"
)
func getCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "get")
}
key := []byte(args[0])
if v, err := db.Get(key); err != nil {
return nil, err
} else {
if v == nil {
return nil, nil
}
return ledis.String(v), nil
}
}
func setCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "set")
}
key := []byte(args[0])
val := []byte(args[1])
if err := db.Set(key, val); err != nil {
return nil, err
} else {
return []interface{}{true, MSG_OK}, nil
}
}
func getsetCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "getset")
}
key := []byte(args[0])
val := []byte(args[1])
if v, err := db.GetSet(key, val); err != nil {
return nil, err
} else {
if v == nil {
return nil, nil
}
return ledis.String(v), nil
}
}
func setnxCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "setnx")
}
key := []byte(args[0])
val := []byte(args[1])
if n, err := db.SetNX(key, val); err != nil {
return nil, err
} else {
return n, nil
}
}
func existsCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "exists")
}
if n, err := db.Exists([]byte(args[0])); err != nil {
return nil, err
} else {
return n, nil
}
}
func incrCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "incr")
}
key := []byte(args[0])
if n, err := db.Incr(key); err != nil {
return nil, err
} else {
return n, nil
}
}
func decrCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "decr")
}
key := []byte(args[0])
if n, err := db.Decr(key); err != nil {
return nil, err
} else {
return n, nil
}
}
func incrbyCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "incrby")
}
delta, err := strconv.ParseInt(args[1], 10, 64)
if err != nil {
return nil, ErrValue
}
key := []byte(args[0])
if n, err := db.IncryBy(key, delta); err != nil {
return nil, err
} else {
return n, nil
}
}
func decrbyCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "decrby")
}
delta, err := strconv.ParseInt(args[1], 10, 64)
if err != nil {
return nil, ErrValue
}
key := []byte(args[0])
if n, err := db.DecrBy(key, delta); err != nil {
return nil, err
} else {
return n, nil
}
}
func delCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) == 0 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "del")
}
keys := make([][]byte, len(args))
if n, err := db.Del(keys...); err != nil {
return nil, err
} else {
return n, nil
}
}
func msetCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) == 0 || len(args)%2 != 0 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "mset")
}
kvs := make([]ledis.KVPair, len(args)/2)
for i := 0; i < len(kvs); i++ {
kvs[i].Key = []byte(args[2*i])
kvs[i].Value = []byte(args[2*i+1])
}
if err := db.MSet(kvs...); err != nil {
return nil, err
} else {
return []interface{}{true, MSG_OK}, nil
}
}
func mgetCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) == 0 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "mget")
}
keys := make([][]byte, len(args))
for i, arg := range args {
keys[i] = []byte(arg)
}
if vals, err := db.MGet(keys...); err != nil {
return nil, err
} else {
arr := make([]interface{}, len(vals))
for i, v := range vals {
if v == nil {
arr[i] = nil
} else {
arr[i] = ledis.String(v)
}
}
return arr, nil
}
}
func expireCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "expire")
}
duration, err := strconv.ParseInt(args[1], 10, 64)
if err != nil {
return nil, ErrValue
}
key := []byte(args[0])
if v, err := db.Expire(key, duration); err != nil {
return nil, err
} else {
return v, nil
}
}
func expireAtCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "expireat")
}
when, err := strconv.ParseInt(args[1], 10, 64)
if err != nil {
return nil, ErrValue
}
key := []byte(args[0])
if v, err := db.ExpireAt(key, when); err != nil {
return nil, err
} else {
return v, nil
}
}
func ttlCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "ttl")
}
key := []byte(args[0])
if v, err := db.TTL(key); err != nil {
return nil, err
} else {
return v, nil
}
}
func persistCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "persist")
}
key := []byte(args[0])
if n, err := db.Persist(key); err != nil {
return nil, err
} else {
return n, nil
}
}
func init() {
register("decr", decrCommand)
register("decrby", decrbyCommand)
register("del", delCommand)
register("exists", existsCommand)
register("get", getCommand)
register("getset", getsetCommand)
register("incr", incrCommand)
register("incrby", incrbyCommand)
register("mget", mgetCommand)
register("mset", msetCommand)
register("set", setCommand)
register("setnx", setnxCommand)
register("expire", expireCommand)
register("expireat", expireAtCommand)
register("ttl", ttlCommand)
register("persist", persistCommand)
}

248
server/http/cmd_list.go Normal file
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@ -0,0 +1,248 @@
package http
import (
"fmt"
"github.com/siddontang/ledisdb/ledis"
"strconv"
)
func lpushCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) < 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "lpush")
}
key := []byte(args[0])
elems := make([][]byte, len(args[1:]))
for i, arg := range args[1:] {
elems[i] = []byte(arg)
}
if n, err := db.LPush(key, elems...); err != nil {
return nil, err
} else {
return n, nil
}
}
func rpushCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) < 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "rpush")
}
key := []byte(args[0])
elems := make([][]byte, len(args[1:]))
for i, arg := range args[1:] {
elems[i] = []byte(arg)
}
if n, err := db.RPush(key, elems...); err != nil {
return nil, err
} else {
return n, nil
}
}
func lpopCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "lpop")
}
key := []byte(args[0])
if v, err := db.LPop(key); err != nil {
return nil, err
} else {
if v == nil {
return nil, nil
}
return ledis.String(v), nil
}
}
func rpopCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "rpop")
}
key := []byte(args[0])
if v, err := db.RPop(key); err != nil {
return nil, err
} else {
if v == nil {
return nil, nil
}
return ledis.String(v), nil
}
}
func llenCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "llen")
}
key := []byte(args[0])
if n, err := db.LLen(key); err != nil {
return nil, err
} else {
return n, nil
}
}
func lindexCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "lindex")
}
index, err := strconv.ParseInt(args[1], 10, 32)
if err != nil {
return nil, ErrValue
}
key := []byte(args[0])
if v, err := db.LIndex(key, int32(index)); err != nil {
return nil, err
} else {
if v == nil {
return nil, nil
}
return ledis.String(v), nil
}
}
func lrangeCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 3 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "lrange")
}
start, err := strconv.ParseInt(args[1], 10, 64)
if err != nil {
return nil, ErrValue
}
stop, err := strconv.ParseInt(args[2], 10, 64)
if err != nil {
return nil, ErrValue
}
key := []byte(args[0])
if vals, err := db.LRange(key, int32(start), int32(stop)); err != nil {
return nil, err
} else {
arr := make([]interface{}, len(vals))
for i, v := range vals {
if v == nil {
arr[i] = nil
} else {
arr[i] = ledis.String(v)
}
}
return arr, nil
}
}
func lclearCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "lclear")
}
key := []byte(args[0])
if n, err := db.LClear(key); err != nil {
return nil, err
} else {
return n, nil
}
}
func lmclearCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) < 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "lmclear")
}
keys := make([][]byte, len(args))
for i, arg := range args {
keys[i] = []byte(arg)
}
if n, err := db.LMclear(keys...); err != nil {
return nil, err
} else {
return n, nil
}
}
func lexpireCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "lexpire")
}
duration, err := strconv.ParseInt(args[1], 10, 64)
if err != nil {
return nil, ErrValue
}
key := []byte(args[0])
if v, err := db.LExpire(key, duration); err != nil {
return nil, err
} else {
return v, nil
}
}
func lexpireAtCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "lexpireat")
}
when, err := strconv.ParseInt(args[1], 10, 64)
if err != nil {
return nil, ErrValue
}
key := []byte(args[0])
if v, err := db.LExpireAt(key, when); err != nil {
return nil, err
} else {
return v, nil
}
}
func lttlCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "lttl")
}
key := []byte(args[0])
if v, err := db.LTTL(key); err != nil {
return nil, err
} else {
return v, nil
}
}
func lpersistCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "lpersist")
}
key := []byte(args[0])
if n, err := db.LPersist(key); err != nil {
return nil, err
} else {
return n, nil
}
}
func init() {
register("lindex", lindexCommand)
register("llen", llenCommand)
register("lpop", lpopCommand)
register("lrange", lrangeCommand)
register("lpush", lpushCommand)
register("rpop", rpopCommand)
register("rpush", rpushCommand)
//ledisdb special command
register("lclear", lclearCommand)
register("lmclear", lmclearCommand)
register("lexpire", lexpireCommand)
register("lexpireat", lexpireAtCommand)
register("lttl", lttlCommand)
register("lpersist", lpersistCommand)
}

520
server/http/cmd_zset.go Normal file
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@ -0,0 +1,520 @@
package http
import (
"errors"
"fmt"
"github.com/siddontang/ledisdb/ledis"
"math"
"strconv"
"strings"
)
var errScoreOverflow = errors.New("zset score overflow")
func zaddCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) < 3 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zadd")
}
if len(args[1:])%2 != 0 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zadd")
}
key := []byte(args[0])
args = args[1:]
params := make([]ledis.ScorePair, len(args)/2)
for i := 0; i < len(params); i++ {
score, err := strconv.ParseInt(args[2*i], 10, 64)
if err != nil {
return nil, ErrValue
}
params[i].Score = score
params[i].Member = []byte(args[2*i+1])
}
if n, err := db.ZAdd(key, params...); err != nil {
return nil, err
} else {
return n, nil
}
}
func zcardCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zcard")
}
key := []byte(args[0])
if n, err := db.ZCard(key); err != nil {
return nil, err
} else {
return n, nil
}
}
func zscoreCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zscore")
}
key := []byte(args[0])
member := []byte(args[1])
if s, err := db.ZScore(key, member); err != nil {
if err == ledis.ErrScoreMiss {
return nil, nil
} else {
return nil, err
}
} else {
return strconv.FormatInt(s, 10), nil
}
}
func zremCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) < 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zrem")
}
key := []byte(args[0])
members := make([][]byte, len(args[1:]))
for i, arg := range args[1:] {
members[i] = []byte(arg)
}
if n, err := db.ZRem(key, members...); err != nil {
return nil, err
} else {
return n, nil
}
}
func zincrbyCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 3 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zincrby")
}
key := []byte(args[0])
delta, err := strconv.ParseInt(args[1], 10, 64)
if err != nil {
return nil, ErrValue
}
member := []byte(args[2])
if v, err := db.ZIncrBy(key, delta, member); err != nil {
return nil, err
} else {
return strconv.FormatInt(v, 10), nil
}
}
func zparseScoreRange(minBuf string, maxBuf string) (min int64, max int64, err error) {
if strings.ToLower(minBuf) == "-inf" {
min = math.MinInt64
} else {
var lopen bool = false
if len(minBuf) == 0 {
err = ErrValue
return
}
if minBuf[0] == '(' {
lopen = true
minBuf = minBuf[1:]
}
min, err = strconv.ParseInt(minBuf, 10, 64)
if err != nil {
err = ErrValue
return
}
if min <= ledis.MinScore || min >= ledis.MaxScore {
err = errScoreOverflow
return
}
if lopen {
min++
}
}
if strings.ToLower(maxBuf) == "+inf" {
max = math.MaxInt64
} else {
var ropen = false
if len(maxBuf) == 0 {
err = ErrValue
return
}
if maxBuf[0] == '(' {
ropen = true
maxBuf = maxBuf[1:]
}
max, err = strconv.ParseInt(maxBuf, 10, 64)
if err != nil {
err = ErrValue
return
}
if max <= ledis.MinScore || max >= ledis.MaxScore {
err = errScoreOverflow
return
}
if ropen {
max--
}
}
return
}
func zcountCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 3 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zcount")
}
min, max, err := zparseScoreRange(args[1], args[2])
if err != nil {
return nil, err
}
if min > max {
return 0, nil
}
key := []byte(args[0])
if n, err := db.ZCount(key, min, max); err != nil {
return nil, err
} else {
return n, nil
}
}
func zrankCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zrank")
}
key := []byte(args[0])
member := []byte(args[1])
if n, err := db.ZRank(key, member); err != nil {
return nil, err
} else if n == -1 {
return nil, nil
} else {
return n, nil
}
}
func zrevrankCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zrevrank")
}
key := []byte(args[0])
member := []byte(args[1])
if n, err := db.ZRevRank(key, member); err != nil {
return nil, err
} else if n == -1 {
return nil, nil
} else {
return n, nil
}
}
func zremrangebyrankCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 3 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zremrangebyrank")
}
key := []byte(args[0])
start, err := strconv.Atoi(args[1])
if err != nil {
return nil, ErrValue
}
stop, err := strconv.Atoi(args[2])
if err != nil {
return nil, ErrValue
}
if n, err := db.ZRemRangeByRank(key, start, stop); err != nil {
return nil, err
} else {
return n, nil
}
}
func zremrangebyscoreCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 3 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zremrangebyscore")
}
key := []byte(args[0])
min, max, err := zparseScoreRange(args[1], args[2])
if err != nil {
return nil, err
}
if n, err := db.ZRemRangeByScore(key, min, max); err != nil {
return nil, err
} else {
return n, nil
}
}
func zrangeGeneric(db *ledis.DB, reverse bool, args ...string) (interface{}, error) {
key := []byte(args[0])
start, err := strconv.Atoi(args[1])
if err != nil {
return nil, ErrValue
}
stop, err := strconv.Atoi(args[2])
if err != nil {
return nil, ErrValue
}
args = args[3:]
var withScores bool = false
if len(args) > 0 && strings.ToLower(args[0]) == "withscores" {
withScores = true
}
if datas, err := db.ZRangeGeneric(key, start, stop, reverse); err != nil {
return nil, err
} else {
return makeScorePairArray(datas, withScores), nil
}
}
func makeScorePairArray(datas []ledis.ScorePair, withScores bool) []string {
var arr []string
if withScores {
arr = make([]string, 2*len(datas))
for i, data := range datas {
arr[2*i] = ledis.String(data.Member)
arr[2*i+1] = strconv.FormatInt(data.Score, 10)
}
} else {
arr = make([]string, len(datas))
for i, data := range datas {
arr[i] = ledis.String(data.Member)
}
}
return arr
}
func zrangeCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) < 3 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zrange")
}
return zrangeGeneric(db, false, args...)
}
func zrevrangeCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) < 3 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zrevrange")
}
return zrangeGeneric(db, true, args...)
}
func zrangebyscoreGeneric(db *ledis.DB, reverse bool, args ...string) (interface{}, error) {
key := []byte(args[0])
var minScore, maxScore string
if !reverse {
minScore, maxScore = args[1], args[2]
} else {
minScore, maxScore = args[2], args[1]
}
min, max, err := zparseScoreRange(minScore, maxScore)
if err != nil {
return nil, err
}
args = args[3:]
var withScores bool = false
if len(args) > 0 && strings.ToLower(args[0]) == "withscores" {
withScores = true
args = args[1:]
}
var offset int = 0
var count int = -1
if len(args) > 0 {
if len(args) != 3 {
return nil, ErrSyntax
}
if strings.ToLower(args[0]) != "limit" {
return nil, ErrSyntax
}
if offset, err = strconv.Atoi(args[1]); err != nil {
return nil, ErrValue
}
if count, err = strconv.Atoi(args[2]); err != nil {
return nil, ErrValue
}
}
if offset < 0 {
return []interface{}{}, nil
}
if datas, err := db.ZRangeByScoreGeneric(key, min, max, offset, count, reverse); err != nil {
return nil, err
} else {
return makeScorePairArray(datas, withScores), nil
}
}
func zrangebyscoreCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) < 3 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zrangebyscore")
}
return zrangebyscoreGeneric(db, false, args...)
}
func zrevrangebyscoreCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) < 3 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zrevrangebyscore")
}
return zrangebyscoreGeneric(db, true, args...)
}
func zclearCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zclear")
}
key := []byte(args[0])
if n, err := db.ZClear(key); err != nil {
return nil, err
} else {
return n, nil
}
}
func zmclearCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) < 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zmclear")
}
keys := make([][]byte, len(args))
for i, arg := range args {
keys[i] = []byte(arg)
}
if n, err := db.ZMclear(keys...); err != nil {
return nil, err
} else {
return n, nil
}
}
func zexpireCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zexpire")
}
duration, err := strconv.ParseInt(args[1], 10, 64)
if err != nil {
return nil, ErrValue
}
key := []byte(args[0])
if v, err := db.ZExpire(key, duration); err != nil {
return nil, err
} else {
return v, nil
}
}
func zexpireAtCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 2 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zexpireat")
}
when, err := strconv.ParseInt(args[1], 10, 64)
if err != nil {
return nil, ErrValue
}
key := []byte(args[0])
if v, err := db.ZExpireAt(key, when); err != nil {
return nil, err
} else {
return v, nil
}
}
func zttlCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zttl")
}
key := []byte(args[0])
if v, err := db.ZTTL(key); err != nil {
return nil, err
} else {
return v, nil
}
}
func zpersistCommand(db *ledis.DB, args ...string) (interface{}, error) {
if len(args) != 1 {
return nil, fmt.Errorf(ERR_ARGUMENT_FORMAT, "zpersist")
}
key := []byte(args[0])
if n, err := db.ZPersist(key); err != nil {
return nil, err
} else {
return n, nil
}
}
func init() {
register("zadd", zaddCommand)
register("zcard", zcardCommand)
register("zcount", zcountCommand)
register("zincrby", zincrbyCommand)
register("zrange", zrangeCommand)
register("zrangebyscore", zrangebyscoreCommand)
register("zrank", zrankCommand)
register("zrem", zremCommand)
register("zremrangebyrank", zremrangebyrankCommand)
register("zremrangebyscore", zremrangebyscoreCommand)
register("zrevrange", zrevrangeCommand)
register("zrevrank", zrevrankCommand)
register("zrevrangebyscore", zrevrangebyscoreCommand)
register("zscore", zscoreCommand)
//ledisdb special command
register("zclear", zclearCommand)
register("zmclear", zmclearCommand)
register("zexpire", zexpireCommand)
register("zexpireat", zexpireAtCommand)
register("zttl", zttlCommand)
register("zpersist", zpersistCommand)
}

View File

@ -42,8 +42,9 @@ func (h *CmdHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
func (h *CmdHandler) parseReqPath(path string) (db int, cmd string, args []string) {
/*
the proper format of `path` is /cmd/arg1/arg2/../argN or /db/cmd/arg1/arg2/../argN
if `path` is the first kind, `db` will be 0
this function extracts `db`, `cmd` and `args` from `path`
the proper format of `path` is /cmd/arg1/arg2/../argN or /db/cmd/arg1/arg2/../argN
if `path` is the first kind, `db` will be 0
*/
substrings := strings.Split(strings.TrimLeft(path, "/"), "/")
if len(substrings) == 1 {