com.google.gerrit.server.account.AccountByEmailCacheImpl 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 com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.ImmutableSet;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.cache.CacheModule;
import com.google.gerrit.server.query.account.InternalAccountQuery;
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.util.Collections;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.ExecutionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/** Translates an email address to a set of matching accounts. */
@Singleton
public class AccountByEmailCacheImpl implements AccountByEmailCache {
private static final Logger log = LoggerFactory.getLogger(AccountByEmailCacheImpl.class);
private static final String CACHE_NAME = "accounts_byemail";
public static Module module() {
return new CacheModule() {
@Override
protected void configure() {
cache(CACHE_NAME, String.class, new TypeLiteral>() {}).loader(Loader.class);
bind(AccountByEmailCacheImpl.class);
bind(AccountByEmailCache.class).to(AccountByEmailCacheImpl.class);
}
};
}
private final LoadingCache> cache;
@Inject
AccountByEmailCacheImpl(@Named(CACHE_NAME) LoadingCache> cache) {
this.cache = cache;
}
@Override
public Set get(final String email) {
try {
return cache.get(email);
} catch (ExecutionException e) {
log.warn("Cannot resolve accounts by email", e);
return Collections.emptySet();
}
}
@Override
public void evict(final String email) {
if (email != null) {
cache.invalidate(email);
}
}
static class Loader extends CacheLoader> {
private final SchemaFactory schema;
private final Provider accountQueryProvider;
@Inject
Loader(SchemaFactory schema, Provider accountQueryProvider) {
this.schema = schema;
this.accountQueryProvider = accountQueryProvider;
}
@Override
public Set load(String email) throws Exception {
try (ReviewDb db = schema.open()) {
Set r = new HashSet<>();
for (Account a : db.accounts().byPreferredEmail(email)) {
r.add(a.getId());
}
for (AccountState accountState : accountQueryProvider.get().byEmailPrefix(email)) {
if (accountState
.getExternalIds()
.stream()
.filter(e -> email.equals(e.email()))
.findAny()
.isPresent()) {
r.add(accountState.getAccount().getId());
}
}
return ImmutableSet.copyOf(r);
}
}
}
}