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com.google.gerrit.server.account.AccountCacheImpl Maven / Gradle / Ivy
// 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 static com.google.gerrit.server.account.ExternalId.SCHEME_USERNAME;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.ImmutableSet;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.common.TimeUtil;
import com.google.gerrit.extensions.client.GeneralPreferencesInfo;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.reviewdb.client.AccountExternalId;
import com.google.gerrit.reviewdb.client.AccountGroup;
import com.google.gerrit.reviewdb.client.AccountGroupMember;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.account.WatchConfig.NotifyType;
import com.google.gerrit.server.account.WatchConfig.ProjectWatchKey;
import com.google.gerrit.server.cache.CacheModule;
import com.google.gerrit.server.index.account.AccountIndexer;
import com.google.gerrit.server.query.account.InternalAccountQuery;
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.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.ExecutionException;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/** Caches important (but small) account state to avoid database hits. */
@Singleton
public class AccountCacheImpl implements AccountCache {
private static final Logger log = LoggerFactory.getLogger(AccountCacheImpl.class);
private static final String BYID_NAME = "accounts";
private static final String BYUSER_NAME = "accounts_byname";
public static Module module(boolean useReviewdb) {
return new CacheModule() {
@Override
protected void configure() {
cache(BYID_NAME, Account.Id.class, new TypeLiteral>() {})
.loader(ByIdLoader.class);
cache(BYUSER_NAME, String.class, new TypeLiteral>() {})
.loader(useReviewdb ? ByNameReviewDbLoader.class : ByNameLoader.class);
bind(AccountCacheImpl.class);
bind(AccountCache.class).to(AccountCacheImpl.class);
}
};
}
private final LoadingCache> byId;
private final LoadingCache> byName;
private final Provider indexer;
@Inject
AccountCacheImpl(
@Named(BYID_NAME) LoadingCache> byId,
@Named(BYUSER_NAME) LoadingCache> byUsername,
Provider indexer) {
this.byId = byId;
this.byName = byUsername;
this.indexer = indexer;
}
@Override
public AccountState get(Account.Id accountId) {
try {
return byId.get(accountId).orElse(missing(accountId));
} catch (ExecutionException e) {
log.warn("Cannot load AccountState for " + accountId, e);
return missing(accountId);
}
}
@Override
@Nullable
public AccountState getOrNull(Account.Id accountId) {
try {
return byId.get(accountId).orElse(null);
} catch (ExecutionException e) {
log.warn("Cannot load AccountState for " + accountId, e);
return null;
}
}
@Override
public AccountState getIfPresent(Account.Id accountId) {
Optional state = byId.getIfPresent(accountId);
return state != null ? state.orElse(missing(accountId)) : null;
}
@Override
public AccountState getByUsername(String username) {
try {
Optional id = byName.get(username);
return id != null && id.isPresent() ? getOrNull(id.get()) : null;
} catch (ExecutionException e) {
log.warn("Cannot load AccountState for " + username, e);
return null;
}
}
@Override
public void evict(Account.Id accountId) throws IOException {
if (accountId != null) {
byId.invalidate(accountId);
indexer.get().index(accountId);
}
}
@Override
public void evictAll() throws IOException {
byId.invalidateAll();
for (Account.Id accountId : byId.asMap().keySet()) {
indexer.get().index(accountId);
}
}
@Override
public void evictByUsername(String username) {
if (username != null) {
byName.invalidate(username);
}
}
private static AccountState missing(Account.Id accountId) {
Account account = new Account(accountId, TimeUtil.nowTs());
account.setActive(false);
Set anon = ImmutableSet.of();
return new AccountState(
account, anon, Collections.emptySet(), new HashMap>());
}
static class ByIdLoader extends CacheLoader> {
private final SchemaFactory schema;
private final GroupCache groupCache;
private final GeneralPreferencesLoader loader;
private final LoadingCache> byName;
private final Provider watchConfig;
@Inject
ByIdLoader(
SchemaFactory sf,
GroupCache groupCache,
GeneralPreferencesLoader loader,
@Named(BYUSER_NAME) LoadingCache> byUsername,
Provider watchConfig) {
this.schema = sf;
this.groupCache = groupCache;
this.loader = loader;
this.byName = byUsername;
this.watchConfig = watchConfig;
}
@Override
public Optional load(Account.Id key) throws Exception {
try (ReviewDb db = schema.open()) {
Optional state = load(db, key);
if (!state.isPresent()) {
return state;
}
String user = state.get().getUserName();
if (user != null) {
byName.put(user, Optional.of(state.get().getAccount().getId()));
}
return state;
}
}
private Optional load(final ReviewDb db, final Account.Id who)
throws OrmException, IOException, ConfigInvalidException {
Account account = db.accounts().get(who);
if (account == null) {
return Optional.empty();
}
Set externalIds =
ExternalId.from(db.accountExternalIds().byAccount(who).toList());
Set internalGroups = new HashSet<>();
for (AccountGroupMember g : db.accountGroupMembers().byAccount(who)) {
final AccountGroup.Id groupId = g.getAccountGroupId();
final AccountGroup group = groupCache.get(groupId);
if (group != null && group.getGroupUUID() != null) {
internalGroups.add(group.getGroupUUID());
}
}
internalGroups = Collections.unmodifiableSet(internalGroups);
try {
account.setGeneralPreferences(loader.load(who));
} catch (IOException | ConfigInvalidException e) {
log.warn("Cannot load GeneralPreferences for " + who + " (using default)", e);
account.setGeneralPreferences(GeneralPreferencesInfo.defaults());
}
return Optional.of(
new AccountState(
account, internalGroups, externalIds, watchConfig.get().getProjectWatches(who)));
}
}
static class ByNameReviewDbLoader extends CacheLoader> {
private final SchemaFactory dbProvider;
@Inject
public ByNameReviewDbLoader(SchemaFactory dbProvider) {
this.dbProvider = dbProvider;
}
@Override
public Optional load(String username) throws Exception {
try (ReviewDb db = dbProvider.open()) {
return Optional.ofNullable(
db.accountExternalIds()
.get(new AccountExternalId.Key(SCHEME_USERNAME + ":" + username)))
.map(AccountExternalId::getAccountId);
}
}
}
static class ByNameLoader extends CacheLoader> {
private final Provider accountQueryProvider;
@Inject
ByNameLoader(Provider accountQueryProvider) {
this.accountQueryProvider = accountQueryProvider;
}
@Override
public Optional load(String username) throws Exception {
AccountState accountState =
accountQueryProvider.get().oneByExternalId(SCHEME_USERNAME, username);
return Optional.ofNullable(accountState).map(s -> s.getAccount().getId());
}
}
}
