| // 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.gerrit.client.reviewdb.Account; |
| import com.google.gerrit.client.reviewdb.AccountExternalId; |
| import com.google.gerrit.client.reviewdb.AccountGroup; |
| import com.google.gerrit.client.reviewdb.AccountGroupMember; |
| import com.google.gerrit.client.reviewdb.ReviewDb; |
| import com.google.gerrit.server.cache.Cache; |
| import com.google.gerrit.server.cache.CacheModule; |
| import com.google.gerrit.server.cache.SelfPopulatingCache; |
| import com.google.gerrit.server.config.AuthConfig; |
| import com.google.gwtorm.client.OrmException; |
| import com.google.gwtorm.client.SchemaFactory; |
| import com.google.inject.Inject; |
| import com.google.inject.Module; |
| import com.google.inject.Singleton; |
| import com.google.inject.TypeLiteral; |
| import com.google.inject.name.Named; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| /** Caches important (but small) account state to avoid database hits. */ |
| @Singleton |
| public class AccountCacheImpl implements AccountCache { |
| private static final String CACHE_NAME = "accounts"; |
| |
| public static Module module() { |
| return new CacheModule() { |
| @Override |
| protected void configure() { |
| final TypeLiteral<Cache<Account.Id, AccountState>> type = |
| new TypeLiteral<Cache<Account.Id, AccountState>>() {}; |
| core(type, CACHE_NAME); |
| bind(AccountCacheImpl.class); |
| bind(AccountCache.class).to(AccountCacheImpl.class); |
| } |
| }; |
| } |
| |
| private final SchemaFactory<ReviewDb> schema; |
| private final GroupCache groupCache; |
| private final SelfPopulatingCache<Account.Id, AccountState> self; |
| |
| private final Set<AccountGroup.Id> registered; |
| private final Set<AccountGroup.Id> anonymous; |
| |
| @Inject |
| AccountCacheImpl(final SchemaFactory<ReviewDb> sf, final AuthConfig auth, |
| final GroupCache groupCache, |
| @Named(CACHE_NAME) final Cache<Account.Id, AccountState> rawCache) { |
| schema = sf; |
| registered = auth.getRegisteredGroups(); |
| anonymous = auth.getAnonymousGroups(); |
| this.groupCache = groupCache; |
| |
| self = new SelfPopulatingCache<Account.Id, AccountState>(rawCache) { |
| @Override |
| protected AccountState createEntry(Account.Id key) throws Exception { |
| return lookup(key); |
| } |
| |
| @Override |
| protected AccountState missing(final Account.Id key) { |
| return missingAccount(key); |
| } |
| }; |
| } |
| |
| private AccountState lookup(final Account.Id who) throws OrmException { |
| final ReviewDb db = schema.open(); |
| try { |
| final Account account = db.accounts().get(who); |
| if (account == null) { |
| // Account no longer exists? They are anonymous. |
| // |
| return missingAccount(who); |
| } |
| |
| final Collection<AccountExternalId> externalIds = |
| Collections.unmodifiableCollection(db.accountExternalIds().byAccount( |
| who).toList()); |
| |
| Set<AccountGroup.Id> internalGroups = new HashSet<AccountGroup.Id>(); |
| for (AccountGroupMember g : db.accountGroupMembers().byAccount(who)) { |
| final AccountGroup.Id groupId = g.getAccountGroupId(); |
| final AccountGroup group = groupCache.get(groupId); |
| if (group != null && group.getType() == AccountGroup.Type.INTERNAL) { |
| internalGroups.add(groupId); |
| } |
| } |
| |
| if (internalGroups.isEmpty()) { |
| internalGroups = registered; |
| } else { |
| internalGroups.addAll(registered); |
| internalGroups = Collections.unmodifiableSet(internalGroups); |
| } |
| |
| return new AccountState(account, internalGroups, externalIds); |
| } finally { |
| db.close(); |
| } |
| } |
| |
| private AccountState missingAccount(final Account.Id accountId) { |
| final Account account = new Account(accountId); |
| final Collection<AccountExternalId> ids = Collections.emptySet(); |
| return new AccountState(account, anonymous, ids); |
| } |
| |
| public AccountState get(final Account.Id accountId) { |
| return self.get(accountId); |
| } |
| |
| public void evict(final Account.Id accountId) { |
| self.remove(accountId); |
| } |
| } |