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operate_command.go
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operate_command.go
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// Copyright 2013-2020 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
type operateCommand struct {
readCommand
policy *WritePolicy
operations []*Operation
hasWrite bool
}
func newOperateCommand(cluster *Cluster, policy *WritePolicy, key *Key, operations []*Operation) (operateCommand, error) {
hasWrite := hasWriteOp(operations)
var partition *Partition
var err error
if hasWrite {
partition, err = PartitionForWrite(cluster, &policy.BasePolicy, key)
} else {
partition, err = PartitionForRead(cluster, &policy.BasePolicy, key)
}
if err != nil {
return operateCommand{}, err
}
readCommand, err := newReadCommand(cluster, &policy.BasePolicy, key, nil, partition)
if err != nil {
return operateCommand{}, err
}
return operateCommand{
readCommand: readCommand,
policy: policy,
operations: operations,
hasWrite: hasWrite,
}, nil
}
func (cmd *operateCommand) writeBuffer(ifc command) (err error) {
cmd.hasWrite, err = cmd.setOperate(cmd.policy, cmd.key, cmd.operations)
return err
}
func (cmd *operateCommand) getNode(ifc command) (*Node, error) {
if cmd.hasWrite {
return cmd.partition.GetNodeWrite(cmd.cluster)
}
// this may be affected by Rackaware
return cmd.partition.GetNodeRead(cmd.cluster)
}
func (cmd *operateCommand) prepareRetry(ifc command, isTimeout bool) bool {
if cmd.hasWrite {
cmd.partition.PrepareRetryWrite(isTimeout)
} else {
cmd.partition.PrepareRetryRead(isTimeout)
}
return true
}
func (cmd *operateCommand) Execute() error {
return cmd.execute(cmd, !cmd.hasWrite)
}
func hasWriteOp(operations []*Operation) bool {
for i := range operations {
switch operations[i].opType {
case _MAP_READ, _READ, _CDT_READ:
default:
// All other cases are a type of write
return true
}
}
return false
}