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replace.go
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replace.go
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/*
* Copyright 2012-2020 Aerospike, Inc.
*
* Portions may be licensed to Aerospike, Inc. under one or more contributor
* license agreements.
*
* 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 main
import (
"log"
as "github.com/aerospike/aerospike-client-go"
shared "github.com/aerospike/aerospike-client-go/examples/shared"
ast "github.com/aerospike/aerospike-client-go/types"
)
func main() {
runReplaceExample(shared.Client)
runReplaceOnlyExample(shared.Client)
log.Println("Example finished successfully.")
}
func runReplaceExample(client *as.Client) {
key, err := as.NewKey(*shared.Namespace, *shared.Set, "replacekey")
shared.PanicOnError(err)
bin1 := as.NewBin("bin1", "value1")
bin2 := as.NewBin("bin2", "value2")
bin3 := as.NewBin("bin3", "value3")
log.Printf("Put: namespace=%s set=%s key=%s bin1=%s value1=%s bin2=%s value2=%s",
key.Namespace(), key.SetName(), key.Value(), bin1.Name, bin1.Value, bin2.Name, bin2.Value)
client.PutBins(shared.WritePolicy, key, bin1, bin2)
log.Printf("Replace with: namespace=%s set=%s key=%s bin=%s value=%s",
key.Namespace(), key.SetName(), key.Value(), bin3.Name, bin3.Value)
wpolicy := as.NewWritePolicy(0, 0)
wpolicy.RecordExistsAction = as.REPLACE
client.PutBins(wpolicy, key, bin3)
log.Printf("Get: namespace=%s set=%s key=%s", key.Namespace(), key.SetName(), key.Value())
record, err := client.Get(shared.Policy, key)
shared.PanicOnError(err)
if record == nil {
log.Fatalf(
"Failed to get: namespace=%s set=%s key=%s", key.Namespace(), key.SetName(), key.Value())
}
if record.Bins[bin1.Name] == nil {
log.Printf(bin1.Name + " was deleted as expected.")
} else {
log.Fatalln(bin1.Name + " found when it should have been deleted.")
}
if record.Bins[bin2.Name] == nil {
log.Printf(bin2.Name + " was deleted as expected.")
} else {
log.Fatalln(bin2.Name + " found when it should have been deleted.")
}
shared.ValidateBin(key, bin3, record)
}
func runReplaceOnlyExample(client *as.Client) {
key, err := as.NewKey(*shared.Namespace, *shared.Set, "replaceonlykey")
shared.PanicOnError(err)
bin := as.NewBin("bin", "value")
// Delete record if it already exists.
client.Delete(shared.WritePolicy, key)
log.Printf("Replace record requiring that it exists: namespace=%s set=%s key=%s",
key.Namespace(), key.SetName(), key.Value())
wpolicy := as.NewWritePolicy(0, 0)
wpolicy.RecordExistsAction = as.REPLACE_ONLY
err = client.PutBins(wpolicy, key, bin)
if ae, ok := err.(ast.AerospikeError); ok && ae.ResultCode() == ast.KEY_NOT_FOUND_ERROR {
log.Printf("Success. `Not found` error returned as expected.")
} else {
log.Fatalln("Failure. This command should have resulted in an error.")
}
}