github.com/cs3org/reva/v2@v2.27.7/pkg/storage/favorite/memory/memory.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 memory
    20  
    21  import (
    22  	"context"
    23  	"sync"
    24  
    25  	user "github.com/cs3org/go-cs3apis/cs3/identity/user/v1beta1"
    26  	provider "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
    27  	"github.com/cs3org/reva/v2/pkg/storage/favorite"
    28  	"github.com/cs3org/reva/v2/pkg/storage/favorite/registry"
    29  )
    30  
    31  func init() {
    32  	registry.Register("memory", New)
    33  }
    34  
    35  type mgr struct {
    36  	sync.RWMutex
    37  	favorites map[string]map[string]*provider.ResourceId
    38  }
    39  
    40  // New returns an instance of the in-memory favorites manager.
    41  func New(m map[string]interface{}) (favorite.Manager, error) {
    42  	return &mgr{favorites: make(map[string]map[string]*provider.ResourceId)}, nil
    43  }
    44  
    45  func (m *mgr) ListFavorites(_ context.Context, userID *user.UserId) ([]*provider.ResourceId, error) {
    46  	m.RLock()
    47  	defer m.RUnlock()
    48  	favorites := make([]*provider.ResourceId, 0, len(m.favorites[userID.OpaqueId]))
    49  	for _, id := range m.favorites[userID.OpaqueId] {
    50  		favorites = append(favorites, id)
    51  	}
    52  	return favorites, nil
    53  }
    54  
    55  func (m *mgr) SetFavorite(_ context.Context, userID *user.UserId, resourceInfo *provider.ResourceInfo) error {
    56  	m.Lock()
    57  	defer m.Unlock()
    58  	if m.favorites[userID.OpaqueId] == nil {
    59  		m.favorites[userID.OpaqueId] = make(map[string]*provider.ResourceId)
    60  	}
    61  	m.favorites[userID.OpaqueId][resourceInfo.Id.OpaqueId] = resourceInfo.Id
    62  	return nil
    63  }
    64  
    65  func (m *mgr) UnsetFavorite(_ context.Context, userID *user.UserId, resourceInfo *provider.ResourceInfo) error {
    66  	m.Lock()
    67  	defer m.Unlock()
    68  	delete(m.favorites[userID.OpaqueId], resourceInfo.Id.OpaqueId)
    69  	return nil
    70  }