github.com/cs3org/reva/v2@v2.27.7/pkg/storage/cache/provider.go (about)

     1  // Copyright 2018-2021 CERN
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  //
    15  // In applying this license, CERN does not waive the privileges and immunities
    16  // granted to it by virtue of its status as an Intergovernmental Organization
    17  // or submit itself to any jurisdiction.
    18  
    19  package cache
    20  
    21  import (
    22  	"sync"
    23  
    24  	userpb "github.com/cs3org/go-cs3apis/cs3/identity/user/v1beta1"
    25  	provider "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
    26  	"go-micro.dev/v4/store"
    27  )
    28  
    29  // ProviderCache can invalidate all provider related cache entries
    30  type providerCache struct {
    31  	cacheStore
    32  }
    33  
    34  // NewProviderCache creates a new ProviderCache
    35  func NewProviderCache(cfg Config) ProviderCache {
    36  	c := &providerCache{}
    37  	c.s = getStore(cfg)
    38  	c.database = cfg.Database
    39  	c.table = cfg.Table
    40  	c.ttl = cfg.TTL
    41  
    42  	return c
    43  }
    44  
    45  // RemoveListStorageProviders removes a reference from the listproviders cache
    46  func (c providerCache) RemoveListStorageProviders(res *provider.ResourceId) {
    47  	if res == nil {
    48  		return
    49  	}
    50  
    51  	keys, err := c.List(store.ListSuffix(res.SpaceId), store.ListLimit(100))
    52  	if err != nil {
    53  		// FIXME log error
    54  		return
    55  	}
    56  
    57  	wg := sync.WaitGroup{}
    58  	for _, key := range keys {
    59  		wg.Add(1)
    60  		go func(k string) {
    61  			defer wg.Done()
    62  			_ = c.Delete(k)
    63  		}(key)
    64  	}
    65  	wg.Wait()
    66  }
    67  
    68  func (c providerCache) GetKey(userID *userpb.UserId, spaceID string) string {
    69  	if key := userID.GetOpaqueId() + "!" + spaceID; key != "!" {
    70  		return key
    71  	}
    72  	return ""
    73  }