| // Copyright (C) 2011 The Android Open Source Project |
| // |
| // 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 com.google.gerrit.server.project; |
| |
| import com.google.gerrit.reviewdb.client.Project; |
| import com.google.gerrit.server.CurrentUser; |
| import com.google.inject.Inject; |
| import com.google.inject.servlet.RequestScoped; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** Caches {@link ProjectControl} objects for the current user of the request. */ |
| @RequestScoped |
| public class PerRequestProjectControlCache { |
| private final ProjectCache projectCache; |
| private final CurrentUser user; |
| private final Map<Project.NameKey, ProjectControl> controls; |
| |
| @Inject |
| PerRequestProjectControlCache(ProjectCache projectCache, CurrentUser userProvider) { |
| this.projectCache = projectCache; |
| this.user = userProvider; |
| this.controls = new HashMap<>(); |
| } |
| |
| ProjectControl get(Project.NameKey nameKey) throws NoSuchProjectException { |
| ProjectControl ctl = controls.get(nameKey); |
| if (ctl == null) { |
| ProjectState p = projectCache.get(nameKey); |
| if (p == null) { |
| throw new NoSuchProjectException(nameKey); |
| } |
| ctl = p.controlFor(user); |
| controls.put(nameKey, ctl); |
| } |
| return ctl; |
| } |
| |
| public void evict(Project project) { |
| projectCache.evict(project); |
| controls.remove(project.getNameKey()); |
| } |
| } |