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server_command.go
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server_command.go
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// Copyright 2013-2017 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 (
// "fmt"
// . "github.com/aerospike/aerospike-client-go/logger"
. "github.com/aerospike/aerospike-client-go/types"
Buffer "github.com/aerospike/aerospike-client-go/utils/buffer"
)
type serverCommand struct {
queryCommand
}
func newServerCommand(node *Node, policy *QueryPolicy, statement *Statement) *serverCommand {
return &serverCommand{
queryCommand: *newQueryCommand(node, policy, statement, nil),
}
}
func (cmd *serverCommand) parseRecordResults(ifc command, receiveSize int) (bool, error) {
// Server commands (Query/Execute UDF) should only send back a return code.
// Keep parsing logic to empty socket buffer just in case server does
// send records back.
cmd.dataOffset = 0
for cmd.dataOffset < receiveSize {
if err := cmd.readBytes(int(_MSG_REMAINING_HEADER_SIZE)); err != nil {
return false, err
}
resultCode := ResultCode(cmd.dataBuffer[5] & 0xFF)
if resultCode != 0 {
if resultCode == KEY_NOT_FOUND_ERROR {
return false, nil
}
return false, NewAerospikeError(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
}
fieldCount := int(Buffer.BytesToUint16(cmd.dataBuffer, 18))
opCount := int(Buffer.BytesToUint16(cmd.dataBuffer, 20))
if _, err := cmd.parseKey(fieldCount); err != nil {
return false, err
}
for i := 0; i < opCount; i++ {
if err := cmd.readBytes(8); err != nil {
return false, err
}
opSize := int(Buffer.BytesToUint32(cmd.dataBuffer, 0))
nameSize := int(cmd.dataBuffer[7])
if err := cmd.readBytes(nameSize); err != nil {
return false, err
}
particleBytesSize := opSize - (4 + nameSize)
if err := cmd.readBytes(particleBytesSize); err != nil {
return false, err
}
}
}
return true, nil
}
func (cmd *serverCommand) Execute() error {
return cmd.execute(cmd, false)
}