79 lines
2.1 KiB
Go
79 lines
2.1 KiB
Go
/*
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Copyright 2021 The Dapr Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package state
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import (
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"fmt"
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)
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const (
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FirstWrite = "first-write"
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LastWrite = "last-write"
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Strong = "strong"
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Eventual = "eventual"
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)
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// CheckRequestOptions checks if request options use supported keywords.
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func CheckRequestOptions(options interface{}) error {
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switch o := options.(type) {
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case SetStateOption:
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if err := validateConsistencyOption(o.Consistency); err != nil {
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return err
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}
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if err := validateConcurrencyOption(o.Concurrency); err != nil {
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return err
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}
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case DeleteStateOption:
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// no support in golang for multiple condition in type switch, so need to check explicitly
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if err := validateConsistencyOption(o.Consistency); err != nil {
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return err
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}
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if err := validateConcurrencyOption(o.Concurrency); err != nil {
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return err
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}
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case GetStateOption:
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if err := validateConsistencyOption(o.Consistency); err != nil {
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return err
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}
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}
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return nil
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}
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func validateConcurrencyOption(c string) error {
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if c != "" && c != FirstWrite && c != LastWrite {
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return fmt.Errorf("unrecognized concurrency model '%s'", c)
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}
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return nil
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}
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func validateConsistencyOption(c string) error {
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if c != "" && c != Strong && c != Eventual {
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return fmt.Errorf("unrecognized consistency model '%s'", c)
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}
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return nil
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}
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// SetWithOptions handles SetRequest with request options.
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func SetWithOptions(method func(req *SetRequest) error, req *SetRequest) error {
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return method(req)
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}
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// DeleteWithOptions handles DeleteRequest with options.
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func DeleteWithOptions(method func(req *DeleteRequest) error, req *DeleteRequest) error {
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return method(req)
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}
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