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-rw-r--r--cache/partitioned_lazy_cache.go99
1 files changed, 0 insertions, 99 deletions
diff --git a/cache/partitioned_lazy_cache.go b/cache/partitioned_lazy_cache.go
deleted file mode 100644
index 31e66e127..000000000
--- a/cache/partitioned_lazy_cache.go
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright 2017-present The Hugo Authors. All rights reserved.
-//
-// 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 cache
-
-import (
- "sync"
-)
-
-// Partition represents a cache partition where Load is the callback
-// for when the partition is needed.
-type Partition struct {
- Key string
- Load func() (map[string]interface{}, error)
-}
-
-// Lazy represents a lazily loaded cache.
-type Lazy struct {
- initSync sync.Once
- initErr error
- cache map[string]interface{}
- load func() (map[string]interface{}, error)
-}
-
-// NewLazy creates a lazy cache with the given load func.
-func NewLazy(load func() (map[string]interface{}, error)) *Lazy {
- return &Lazy{load: load}
-}
-
-func (l *Lazy) init() error {
- l.initSync.Do(func() {
- c, err := l.load()
- l.cache = c
- l.initErr = err
-
- })
-
- return l.initErr
-}
-
-// Get initializes the cache if not already initialized, then looks up the
-// given key.
-func (l *Lazy) Get(key string) (interface{}, bool, error) {
- l.init()
- if l.initErr != nil {
- return nil, false, l.initErr
- }
- v, found := l.cache[key]
- return v, found, nil
-}
-
-// PartitionedLazyCache is a lazily loaded cache paritioned by a supplied string key.
-type PartitionedLazyCache struct {
- partitions map[string]*Lazy
-}
-
-// NewPartitionedLazyCache creates a new NewPartitionedLazyCache with the supplied
-// partitions.
-func NewPartitionedLazyCache(partitions ...Partition) *PartitionedLazyCache {
- lazyPartitions := make(map[string]*Lazy, len(partitions))
- for _, partition := range partitions {
- lazyPartitions[partition.Key] = NewLazy(partition.Load)
- }
- cache := &PartitionedLazyCache{partitions: lazyPartitions}
-
- return cache
-}
-
-// Get initializes the partition if not already done so, then looks up the given
-// key in the given partition, returns nil if no value found.
-func (c *PartitionedLazyCache) Get(partition, key string) (interface{}, error) {
- p, found := c.partitions[partition]
-
- if !found {
- return nil, nil
- }
-
- v, found, err := p.Get(key)
- if err != nil {
- return nil, err
- }
-
- if found {
- return v, nil
- }
-
- return nil, nil
-
-}