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batch_command_delete.go
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/
batch_command_delete.go
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// Copyright 2014-2022 Aerospike, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package aerospike
import (
"github.com/aerospike/aerospike-client-go/v7/types"
Buffer "github.com/aerospike/aerospike-client-go/v7/utils/buffer"
)
type batchCommandDelete struct {
batchCommand
batchDeletePolicy *BatchDeletePolicy
keys []*Key
records []*BatchRecord
attr *batchAttr
}
func newBatchCommandDelete(
client clientIfc,
batch *batchNode,
policy *BatchPolicy,
batchDeletePolicy *BatchDeletePolicy,
keys []*Key,
records []*BatchRecord,
attr *batchAttr,
) *batchCommandDelete {
var node *Node
if batch != nil {
node = batch.Node
}
res := &batchCommandDelete{
batchCommand: batchCommand{
client: client,
baseMultiCommand: *newMultiCommand(node, nil, false),
policy: policy,
batch: batch,
},
batchDeletePolicy: batchDeletePolicy,
keys: keys,
records: records,
attr: attr,
}
return res
}
func (cmd *batchCommandDelete) cloneBatchCommand(batch *batchNode) batcher {
res := *cmd
res.node = batch.Node
res.batch = batch
return &res
}
func (cmd *batchCommandDelete) writeBuffer(ifc command) Error {
return cmd.setBatchOperate(cmd.policy, cmd.keys, cmd.batch, nil, nil, cmd.attr)
}
// Parse all results in the batch. Add records to shared list.
// If the record was not found, the bins will be nil.
func (cmd *batchCommandDelete) parseRecordResults(ifc command, receiveSize int) (bool, Error) {
//Parse each message response and add it to the result array
cmd.dataOffset = 0
for cmd.dataOffset < receiveSize {
if err := cmd.readBytes(int(_MSG_REMAINING_HEADER_SIZE)); err != nil {
return false, err
}
resultCode := types.ResultCode(cmd.dataBuffer[5] & 0xFF)
// The only valid server return codes are "ok" and "not found" and "filtered out".
// If other return codes are received, then abort the batch.
if resultCode != 0 {
if resultCode != types.KEY_NOT_FOUND_ERROR {
if resultCode == types.FILTERED_OUT {
cmd.filteredOutCnt++
}
}
if resultCode != types.KEY_NOT_FOUND_ERROR && resultCode != types.FILTERED_OUT {
return false, newCustomNodeError(cmd.node, resultCode)
}
}
info3 := int(cmd.dataBuffer[3])
// If cmd is the end marker of the response, do not proceed further
if (info3 & _INFO3_LAST) == _INFO3_LAST {
return false, nil
}
generation := Buffer.BytesToUint32(cmd.dataBuffer, 6)
expiration := types.TTL(Buffer.BytesToUint32(cmd.dataBuffer, 10))
batchIndex := int(Buffer.BytesToUint32(cmd.dataBuffer, 14))
fieldCount := int(Buffer.BytesToUint16(cmd.dataBuffer, 18))
opCount := int(Buffer.BytesToUint16(cmd.dataBuffer, 20))
err := cmd.skipKey(fieldCount)
if err != nil {
return false, err
}
if resultCode == 0 {
if err = cmd.parseRecord(cmd.records[batchIndex], cmd.keys[batchIndex], opCount, generation, expiration); err != nil {
return false, err
}
} else {
cmd.records[batchIndex].Err = chainErrors(newCustomNodeError(cmd.node, resultCode), cmd.records[batchIndex].Err)
cmd.records[batchIndex].setError(cmd.node, resultCode, cmd.batchInDoubt(cmd.attr.hasWrite, cmd.commandSentCounter))
}
}
return true, nil
}
// Parses the given byte buffer and populate the result object.
// Returns the number of bytes that were parsed from the given buffer.
func (cmd *batchCommandDelete) parseRecord(rec *BatchRecord, key *Key, opCount int, generation, expiration uint32) Error {
bins := make(BinMap, opCount)
for i := 0; i < opCount; i++ {
if err := cmd.readBytes(8); err != nil {
return err
}
opSize := int(Buffer.BytesToUint32(cmd.dataBuffer, 0))
particleType := int(cmd.dataBuffer[5])
nameSize := int(cmd.dataBuffer[7])
if err := cmd.readBytes(nameSize); err != nil {
return err
}
name := string(cmd.dataBuffer[:nameSize])
particleBytesSize := opSize - (4 + nameSize)
if err := cmd.readBytes(particleBytesSize); err != nil {
return err
}
value, err := bytesToParticle(particleType, cmd.dataBuffer, 0, particleBytesSize)
if err != nil {
return err
}
if cmd.isOperation {
if prev, ok := bins[name]; ok {
if prev2, ok := prev.(OpResults); ok {
bins[name] = append(prev2, value)
} else {
bins[name] = OpResults{prev, value}
}
} else {
bins[name] = value
}
} else {
bins[name] = value
}
}
rec.setRecord(newRecord(cmd.node, key, bins, generation, expiration))
return nil
}
func (cmd *batchCommandDelete) transactionType() transactionType {
return ttBatchWrite
}
func (cmd *batchCommandDelete) executeSingle(client clientIfc) Error {
policy := cmd.batchDeletePolicy.toWritePolicy(cmd.policy)
for i, key := range cmd.keys {
res, err := client.Operate(policy, key, DeleteOp())
cmd.records[i].setRecord(res)
if err != nil {
cmd.records[i].setRawError(err)
// Key not found is NOT an error for batch requests
if err.resultCode() == types.KEY_NOT_FOUND_ERROR {
continue
}
if err.resultCode() == types.FILTERED_OUT {
cmd.filteredOutCnt++
continue
}
if cmd.policy.AllowPartialResults {
continue
}
return err
}
}
return nil
}
func (cmd *batchCommandDelete) Execute() Error {
if len(cmd.keys) == 1 {
return cmd.executeSingle(cmd.client)
}
return cmd.execute(cmd)
}
func (cmd *batchCommandDelete) generateBatchNodes(cluster *Cluster) ([]*batchNode, Error) {
return newBatchNodeListKeys(cluster, cmd.policy, cmd.keys, nil, cmd.sequenceAP, cmd.sequenceSC, cmd.batch, false)
}