| // Copyright (C) 2009 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.account; |
| |
| import com.google.common.cache.CacheLoader; |
| import com.google.common.cache.LoadingCache; |
| import com.google.common.collect.ImmutableList; |
| import com.google.gerrit.reviewdb.client.AccountGroup; |
| import com.google.gerrit.reviewdb.client.AccountGroupName; |
| import com.google.gerrit.reviewdb.server.ReviewDb; |
| import com.google.gerrit.server.cache.CacheModule; |
| import com.google.gerrit.server.index.group.GroupIndexer; |
| import com.google.gwtorm.server.OrmDuplicateKeyException; |
| import com.google.gwtorm.server.OrmException; |
| import com.google.gwtorm.server.SchemaFactory; |
| import com.google.inject.Inject; |
| import com.google.inject.Module; |
| import com.google.inject.Provider; |
| import com.google.inject.Singleton; |
| import com.google.inject.TypeLiteral; |
| import com.google.inject.name.Named; |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Optional; |
| import java.util.concurrent.ExecutionException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** Tracks group objects in memory for efficient access. */ |
| @Singleton |
| public class GroupCacheImpl implements GroupCache { |
| private static final Logger log = LoggerFactory.getLogger(GroupCacheImpl.class); |
| |
| private static final String BYID_NAME = "groups"; |
| private static final String BYNAME_NAME = "groups_byname"; |
| private static final String BYUUID_NAME = "groups_byuuid"; |
| |
| public static Module module() { |
| return new CacheModule() { |
| @Override |
| protected void configure() { |
| cache(BYID_NAME, AccountGroup.Id.class, new TypeLiteral<Optional<AccountGroup>>() {}) |
| .loader(ByIdLoader.class); |
| |
| cache(BYNAME_NAME, String.class, new TypeLiteral<Optional<AccountGroup>>() {}) |
| .loader(ByNameLoader.class); |
| |
| cache(BYUUID_NAME, String.class, new TypeLiteral<Optional<AccountGroup>>() {}) |
| .loader(ByUUIDLoader.class); |
| |
| bind(GroupCacheImpl.class); |
| bind(GroupCache.class).to(GroupCacheImpl.class); |
| } |
| }; |
| } |
| |
| private final LoadingCache<AccountGroup.Id, Optional<AccountGroup>> byId; |
| private final LoadingCache<String, Optional<AccountGroup>> byName; |
| private final LoadingCache<String, Optional<AccountGroup>> byUUID; |
| private final SchemaFactory<ReviewDb> schema; |
| private final Provider<GroupIndexer> indexer; |
| |
| @Inject |
| GroupCacheImpl( |
| @Named(BYID_NAME) LoadingCache<AccountGroup.Id, Optional<AccountGroup>> byId, |
| @Named(BYNAME_NAME) LoadingCache<String, Optional<AccountGroup>> byName, |
| @Named(BYUUID_NAME) LoadingCache<String, Optional<AccountGroup>> byUUID, |
| SchemaFactory<ReviewDb> schema, |
| Provider<GroupIndexer> indexer) { |
| this.byId = byId; |
| this.byName = byName; |
| this.byUUID = byUUID; |
| this.schema = schema; |
| this.indexer = indexer; |
| } |
| |
| @Override |
| public AccountGroup get(final AccountGroup.Id groupId) { |
| try { |
| Optional<AccountGroup> g = byId.get(groupId); |
| return g.isPresent() ? g.get() : missing(groupId); |
| } catch (ExecutionException e) { |
| log.warn("Cannot load group " + groupId, e); |
| return missing(groupId); |
| } |
| } |
| |
| @Override |
| public void evict(final AccountGroup group) throws IOException { |
| if (group.getId() != null) { |
| byId.invalidate(group.getId()); |
| } |
| if (group.getNameKey() != null) { |
| byName.invalidate(group.getNameKey().get()); |
| } |
| if (group.getGroupUUID() != null) { |
| byUUID.invalidate(group.getGroupUUID().get()); |
| } |
| indexer.get().index(group.getGroupUUID()); |
| } |
| |
| @Override |
| public void evictAfterRename( |
| final AccountGroup.NameKey oldName, final AccountGroup.NameKey newName) throws IOException { |
| if (oldName != null) { |
| byName.invalidate(oldName.get()); |
| } |
| if (newName != null) { |
| byName.invalidate(newName.get()); |
| } |
| indexer.get().index(get(newName).getGroupUUID()); |
| } |
| |
| @Override |
| public AccountGroup get(AccountGroup.NameKey name) { |
| if (name == null) { |
| return null; |
| } |
| try { |
| return byName.get(name.get()).orElse(null); |
| } catch (ExecutionException e) { |
| log.warn(String.format("Cannot lookup group %s by name", name.get()), e); |
| return null; |
| } |
| } |
| |
| @Override |
| public AccountGroup get(AccountGroup.UUID uuid) { |
| if (uuid == null) { |
| return null; |
| } |
| try { |
| return byUUID.get(uuid.get()).orElse(null); |
| } catch (ExecutionException e) { |
| log.warn(String.format("Cannot lookup group %s by name", uuid.get()), e); |
| return null; |
| } |
| } |
| |
| @Override |
| public ImmutableList<AccountGroup> all() { |
| try (ReviewDb db = schema.open()) { |
| return ImmutableList.copyOf(db.accountGroups().all()); |
| } catch (OrmException e) { |
| log.warn("Cannot list internal groups", e); |
| return ImmutableList.of(); |
| } |
| } |
| |
| @Override |
| public void onCreateGroup(AccountGroup.NameKey newGroupName) throws IOException { |
| byName.invalidate(newGroupName.get()); |
| indexer.get().index(get(newGroupName).getGroupUUID()); |
| } |
| |
| private static AccountGroup missing(AccountGroup.Id key) { |
| AccountGroup.NameKey name = new AccountGroup.NameKey("Deleted Group" + key); |
| return new AccountGroup(name, key, null); |
| } |
| |
| static class ByIdLoader extends CacheLoader<AccountGroup.Id, Optional<AccountGroup>> { |
| private final SchemaFactory<ReviewDb> schema; |
| |
| @Inject |
| ByIdLoader(final SchemaFactory<ReviewDb> sf) { |
| schema = sf; |
| } |
| |
| @Override |
| public Optional<AccountGroup> load(final AccountGroup.Id key) throws Exception { |
| try (ReviewDb db = schema.open()) { |
| return Optional.ofNullable(db.accountGroups().get(key)); |
| } |
| } |
| } |
| |
| static class ByNameLoader extends CacheLoader<String, Optional<AccountGroup>> { |
| private final SchemaFactory<ReviewDb> schema; |
| |
| @Inject |
| ByNameLoader(final SchemaFactory<ReviewDb> sf) { |
| schema = sf; |
| } |
| |
| @Override |
| public Optional<AccountGroup> load(String name) throws Exception { |
| try (ReviewDb db = schema.open()) { |
| AccountGroup.NameKey key = new AccountGroup.NameKey(name); |
| AccountGroupName r = db.accountGroupNames().get(key); |
| if (r != null) { |
| return Optional.ofNullable(db.accountGroups().get(r.getId())); |
| } |
| return Optional.empty(); |
| } |
| } |
| } |
| |
| static class ByUUIDLoader extends CacheLoader<String, Optional<AccountGroup>> { |
| private final SchemaFactory<ReviewDb> schema; |
| |
| @Inject |
| ByUUIDLoader(final SchemaFactory<ReviewDb> sf) { |
| schema = sf; |
| } |
| |
| @Override |
| public Optional<AccountGroup> load(String uuid) throws Exception { |
| try (ReviewDb db = schema.open()) { |
| List<AccountGroup> r; |
| |
| r = db.accountGroups().byUUID(new AccountGroup.UUID(uuid)).toList(); |
| if (r.size() == 1) { |
| return Optional.of(r.get(0)); |
| } else if (r.size() == 0) { |
| return Optional.empty(); |
| } else { |
| throw new OrmDuplicateKeyException("Duplicate group UUID " + uuid); |
| } |
| } |
| } |
| } |
| } |