Line data    Source code

       1             : // Copyright (C) 2014 The Android Open Source Project
       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             : package com.google.gerrit.server.restapi.config;
      16             : 
      17             : import static com.google.gerrit.common.data.GlobalCapability.MAINTAIN_SERVER;
      18             : import static com.google.gerrit.common.data.GlobalCapability.VIEW_CACHES;
      19             : 
      20             : import com.google.common.cache.Cache;
      21             : import com.google.gerrit.extensions.annotations.RequiresAnyCapability;
      22             : import com.google.gerrit.extensions.registration.DynamicMap;
      23             : import com.google.gerrit.extensions.registration.PluginName;
      24             : import com.google.gerrit.extensions.restapi.AuthException;
      25             : import com.google.gerrit.extensions.restapi.ChildCollection;
      26             : import com.google.gerrit.extensions.restapi.IdString;
      27             : import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
      28             : import com.google.gerrit.extensions.restapi.RestView;
      29             : import com.google.gerrit.server.config.CacheResource;
      30             : import com.google.gerrit.server.config.ConfigResource;
      31             : import com.google.gerrit.server.permissions.GlobalPermission;
      32             : import com.google.gerrit.server.permissions.PermissionBackend;
      33             : import com.google.gerrit.server.permissions.PermissionBackendException;
      34             : import com.google.inject.Inject;
      35             : import com.google.inject.Provider;
      36             : import com.google.inject.Singleton;
      37             : 
      38             : @RequiresAnyCapability({VIEW_CACHES, MAINTAIN_SERVER})
      39             : @Singleton
      40             : public class CachesCollection implements ChildCollection<ConfigResource, CacheResource> {
      41             : 
      42             :   private final DynamicMap<RestView<CacheResource>> views;
      43             :   private final Provider<ListCaches> list;
      44             :   private final PermissionBackend permissionBackend;
      45             :   private final DynamicMap<Cache<?, ?>> cacheMap;
      46             : 
      47             :   @Inject
      48             :   CachesCollection(
      49             :       DynamicMap<RestView<CacheResource>> views,
      50             :       Provider<ListCaches> list,
      51             :       PermissionBackend permissionBackend,
      52         138 :       DynamicMap<Cache<?, ?>> cacheMap) {
      53         138 :     this.views = views;
      54         138 :     this.list = list;
      55         138 :     this.permissionBackend = permissionBackend;
      56         138 :     this.cacheMap = cacheMap;
      57         138 :   }
      58             : 
      59             :   @Override
      60             :   public RestView<ConfigResource> list() {
      61           3 :     return list.get();
      62             :   }
      63             : 
      64             :   @Override
      65             :   public CacheResource parse(ConfigResource parent, IdString id)
      66             :       throws AuthException, ResourceNotFoundException, PermissionBackendException {
      67           2 :     permissionBackend.currentUser().check(GlobalPermission.VIEW_CACHES);
      68             : 
      69           2 :     String cacheName = id.get();
      70           2 :     String pluginName = PluginName.GERRIT;
      71           2 :     int i = cacheName.lastIndexOf('-');
      72           2 :     if (i != -1) {
      73           1 :       pluginName = cacheName.substring(0, i);
      74           1 :       cacheName = cacheName.length() > i + 1 ? cacheName.substring(i + 1) : "";
      75             :     }
      76             : 
      77           2 :     Provider<Cache<?, ?>> cacheProvider = cacheMap.byPlugin(pluginName).get(cacheName);
      78           2 :     if (cacheProvider == null) {
      79           1 :       throw new ResourceNotFoundException(id);
      80             :     }
      81           2 :     return new CacheResource(pluginName, cacheName, cacheProvider);
      82             :   }
      83             : 
      84             :   @Override
      85             :   public DynamicMap<RestView<CacheResource>> views() {
      86           2 :     return views;
      87             :   }
      88             : }