Add package NutsDB :

- use lib nutsdb (https://github.com/xujiajun/nutsdb)
- implement client to use embedded db cluster
- convert nutsdb lib as clustered nutsdb with lib cluster (based on dragonboat)
- implement disk backend lib for dragonboat
- add complete config with nutsdb, node & cluster with validator

nutsdb/cmdCode.go

@@ -0,0 +1,420 @@
+/***********************************************************************************************************************
+ *
+ *   MIT License
+ *
+ *   Copyright (c) 2021 Nicolas JUHEL
+ *
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *
+ *   The above copyright notice and this permission notice shall be included in all
+ *   copies or substantial portions of the Software.
+ *
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ *   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ *   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *   SOFTWARE.
+ *
+ *
+ **********************************************************************************************************************/
+
+package nutsdb
+
+type CmdCode uint32
+
+const (
+	// CmdUnknown is no Command.
+	CmdUnknown CmdCode = iota
+	// Command for transaction.
+	CmdPut
+	CmdPutWithTimestamp
+	// Command for BPTree.
+	CmdGet
+	CmdGetAll
+	CmdRangeScan
+	CmdPrefixScan
+	CmdPrefixSearchScan
+	CmdDelete
+	CmdFindTxIDOnDisk
+	CmdFindOnDisk
+	CmdFindLeafOnDisk
+	// Command for Set.
+	CmdSAdd
+	CmdSRem
+	CmdSAreMembers
+	CmdSIsMember
+	CmdSMembers
+	CmdSHasKey
+	CmdSPop
+	CmdSCard
+	CmdSDiffByOneBucket
+	CmdSDiffByTwoBuckets
+	CmdSMoveByOneBucket
+	CmdSMoveByTwoBuckets
+	CmdSUnionByOneBucket
+	CmdSUnionByTwoBuckets
+	// Command for List.
+	CmdRPop
+	CmdRPeek
+	CmdRPush
+	CmdLPush
+	CmdLPop
+	CmdLPeek
+	CmdLSize
+	CmdLRange
+	CmdLRem
+	CmdLSet
+	CmdLTrim
+	// Command for ZSet.
+	CmdZAdd
+	CmdZMembers
+	CmdZCard
+	CmdZCount
+	CmdZPopMax
+	CmdZPopMin
+	CmdZPeekMax
+	CmdZPeekMin
+	CmdZRangeByScore
+	CmdZRangeByRank
+	CmdZRem
+	CmdZRemRangeByRank
+	CmdZRank
+	CmdZRevRank
+	CmdZScore
+	CmdZGetByKey
+)
+
+// nolint #funlen
+func CmdCodeFromName(name string) CmdCode {
+	switch name {
+	case CmdPut.Name():
+		return CmdPut
+
+	case CmdPutWithTimestamp.Name():
+		return CmdPutWithTimestamp
+
+	case CmdGet.Name():
+		return CmdGet
+
+	case CmdGetAll.Name():
+		return CmdGetAll
+
+	case CmdRangeScan.Name():
+		return CmdRangeScan
+
+	case CmdPrefixScan.Name():
+		return CmdPrefixScan
+
+	case CmdPrefixSearchScan.Name():
+		return CmdPrefixSearchScan
+
+	case CmdDelete.Name():
+		return CmdDelete
+
+	case CmdFindTxIDOnDisk.Name():
+		return CmdFindTxIDOnDisk
+
+	case CmdFindOnDisk.Name():
+		return CmdFindOnDisk
+
+	case CmdFindLeafOnDisk.Name():
+		return CmdFindLeafOnDisk
+
+	case CmdSAdd.Name():
+		return CmdSAdd
+
+	case CmdSRem.Name():
+		return CmdSRem
+
+	case CmdSAreMembers.Name():
+		return CmdSAreMembers
+
+	case CmdSIsMember.Name():
+		return CmdSIsMember
+
+	case CmdSMembers.Name():
+		return CmdSMembers
+
+	case CmdSHasKey.Name():
+		return CmdSHasKey
+
+	case CmdSPop.Name():
+		return CmdSPop
+
+	case CmdSCard.Name():
+		return CmdSCard
+
+	case CmdSDiffByOneBucket.Name():
+		return CmdSDiffByOneBucket
+
+	case CmdSDiffByTwoBuckets.Name():
+		return CmdSDiffByTwoBuckets
+
+	case CmdSMoveByOneBucket.Name():
+		return CmdSMoveByOneBucket
+
+	case CmdSMoveByTwoBuckets.Name():
+		return CmdSMoveByTwoBuckets
+
+	case CmdSUnionByOneBucket.Name():
+		return CmdSUnionByOneBucket
+
+	case CmdSUnionByTwoBuckets.Name():
+		return CmdSUnionByTwoBuckets
+
+	case CmdRPop.Name():
+		return CmdRPop
+
+	case CmdRPeek.Name():
+		return CmdRPeek
+
+	case CmdRPush.Name():
+		return CmdRPush
+
+	case CmdLPush.Name():
+		return CmdLPush
+
+	case CmdLPop.Name():
+		return CmdLPop
+
+	case CmdLPeek.Name():
+		return CmdLPeek
+
+	case CmdLSize.Name():
+		return CmdLSize
+
+	case CmdLRange.Name():
+		return CmdLRange
+
+	case CmdLRem.Name():
+		return CmdLRem
+
+	case CmdLSet.Name():
+		return CmdLSet
+
+	case CmdLTrim.Name():
+		return CmdLTrim
+
+	case CmdZAdd.Name():
+		return CmdZAdd
+
+	case CmdZMembers.Name():
+		return CmdZMembers
+
+	case CmdZCard.Name():
+		return CmdZCard
+
+	case CmdZCount.Name():
+		return CmdZCount
+
+	case CmdZPopMax.Name():
+		return CmdZPopMax
+
+	case CmdZPopMin.Name():
+		return CmdZPopMin
+
+	case CmdZPeekMax.Name():
+		return CmdZPeekMax
+
+	case CmdZPeekMin.Name():
+		return CmdZPeekMin
+
+	case CmdZRangeByScore.Name():
+		return CmdZRangeByScore
+
+	case CmdZRangeByRank.Name():
+		return CmdZRangeByRank
+
+	case CmdZRem.Name():
+		return CmdZRem
+
+	case CmdZRemRangeByRank.Name():
+		return CmdZRemRangeByRank
+
+	case CmdZRank.Name():
+		return CmdZRank
+
+	case CmdZRevRank.Name():
+		return CmdZRevRank
+
+	case CmdZScore.Name():
+		return CmdZScore
+
+	case CmdZGetByKey.Name():
+		return CmdZGetByKey
+
+	default:
+		return CmdUnknown
+	}
+}
+
+// nolint #funlen
+func (c CmdCode) Name() string {
+	switch c {
+	case CmdPut:
+		return "Put"
+
+	case CmdPutWithTimestamp:
+		return "PutWithTimestamp"
+
+	case CmdGet:
+		return "Get"
+
+	case CmdGetAll:
+		return "GetAll"
+
+	case CmdRangeScan:
+		return "RangeScan"
+
+	case CmdPrefixScan:
+		return "PrefixScan"
+
+	case CmdPrefixSearchScan:
+		return "PrefixSearchScan"
+
+	case CmdDelete:
+		return "Delete"
+
+	case CmdFindTxIDOnDisk:
+		return "FindTxIDOnDisk"
+
+	case CmdFindOnDisk:
+		return "FindOnDisk"
+
+	case CmdFindLeafOnDisk:
+		return "FindLeafOnDisk"
+
+	case CmdSAdd:
+		return "SAdd"
+
+	case CmdSRem:
+		return "SRem"
+
+	case CmdSAreMembers:
+		return "SAreMembers"
+
+	case CmdSIsMember:
+		return "SIsMember"
+
+	case CmdSMembers:
+		return "SMembers"
+
+	case CmdSHasKey:
+		return "SHasKey"
+
+	case CmdSPop:
+		return "SPop"
+
+	case CmdSCard:
+		return "SCard"
+
+	case CmdSDiffByOneBucket:
+		return "SDiffByOneBucket"
+
+	case CmdSDiffByTwoBuckets:
+		return "SDiffByTwoBuckets"
+
+	case CmdSMoveByOneBucket:
+		return "SMoveByOneBucket"
+
+	case CmdSMoveByTwoBuckets:
+		return "SMoveByTwoBuckets"
+
+	case CmdSUnionByOneBucket:
+		return "SUnionByOneBucket"
+
+	case CmdSUnionByTwoBuckets:
+		return "SUnionByTwoBuckets"
+
+	case CmdRPop:
+		return "RPop"
+
+	case CmdRPeek:
+		return "RPeek"
+
+	case CmdRPush:
+		return "RPush"
+
+	case CmdLPush:
+		return "LPush"
+
+	case CmdLPop:
+		return "LPop"
+
+	case CmdLPeek:
+		return "LPeek"
+
+	case CmdLSize:
+		return "LSize"
+
+	case CmdLRange:
+		return "LRange"
+
+	case CmdLRem:
+		return "LRem"
+
+	case CmdLSet:
+		return "LSet"
+
+	case CmdLTrim:
+		return "LTrim"
+
+	case CmdZAdd:
+		return "ZAdd"
+
+	case CmdZMembers:
+		return "ZMembers"
+
+	case CmdZCard:
+		return "ZCard"
+
+	case CmdZCount:
+		return "ZCount"
+
+	case CmdZPopMax:
+		return "ZPopMax"
+
+	case CmdZPopMin:
+		return "ZPopMin"
+
+	case CmdZPeekMax:
+		return "ZPeekMax"
+
+	case CmdZPeekMin:
+		return "ZPeekMin"
+
+	case CmdZRangeByScore:
+		return "ZRangeByScore"
+
+	case CmdZRangeByRank:
+		return "ZRangeByRank"
+
+	case CmdZRem:
+		return "ZRem"
+
+	case CmdZRemRangeByRank:
+		return "ZRemRangeByRank"
+
+	case CmdZRank:
+		return "ZRank"
+
+	case CmdZRevRank:
+		return "ZRevRank"
+
+	case CmdZScore:
+		return "ZScore"
+
+	case CmdZGetByKey:
+		return "ZGetByKey"
+
+	default:
+		return ""
+	}
+}