50 lines
1.5 KiB
Go
50 lines
1.5 KiB
Go
// Copyright 2014 beego Author. All Rights Reserved.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package cache
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import (
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"context"
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"errors"
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"fmt"
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"github.com/beego/beego/v2/core/berror"
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)
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type WriteDeleteCache struct {
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Cache
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storeFunc func(ctx context.Context, key string, val any) error
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}
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// NewWriteDeleteCache creates a write delete cache pattern decorator.
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// The fn is the function that persistent the key and val.
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func NewWriteDeleteCache(cache Cache, fn func(ctx context.Context, key string, val any) error) (*WriteDeleteCache, error) {
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if fn == nil || cache == nil {
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return nil, berror.Error(InvalidInitParameters, "cache or storeFunc can not be nil")
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}
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w := &WriteDeleteCache{
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Cache: cache,
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storeFunc: fn,
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}
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return w, nil
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}
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func (w *WriteDeleteCache) Set(ctx context.Context, key string, val any) error {
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err := w.storeFunc(ctx, key, val)
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if err != nil && !errors.Is(err, context.DeadlineExceeded) {
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return berror.Wrap(err, PersistCacheFailed, fmt.Sprintf("key: %s, val: %v", key, val))
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}
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return w.Cache.Delete(ctx, key)
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}
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