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// Copyright (C) 2016 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.query.account;
import static java.util.stream.Collectors.toList;
import static java.util.stream.Collectors.toSet;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableListMultimap;
import com.google.common.collect.Multimap;
import com.google.gerrit.index.FieldDef;
import com.google.gerrit.index.IndexConfig;
import com.google.gerrit.index.Schema;
import com.google.gerrit.index.query.InternalQuery;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.server.account.AccountState;
import com.google.gerrit.server.account.externalids.ExternalId;
import com.google.gerrit.server.index.account.AccountField;
import com.google.gerrit.server.index.account.AccountIndexCollection;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import java.util.Arrays;
import java.util.List;
import java.util.Set;
/**
* Query wrapper for the account index.
*
* <p>Instances are one-time-use. Other singleton classes should inject a Provider rather than
* holding on to a single instance.
*/
public class InternalAccountQuery extends InternalQuery<AccountState> {
@Inject
InternalAccountQuery(
AccountQueryProcessor queryProcessor,
AccountIndexCollection indexes,
IndexConfig indexConfig) {
super(queryProcessor, indexes, indexConfig);
}
@Override
public InternalAccountQuery setLimit(int n) {
super.setLimit(n);
return this;
}
@Override
public InternalAccountQuery enforceVisibility(boolean enforce) {
super.enforceVisibility(enforce);
return this;
}
@SafeVarargs
@Override
public final InternalAccountQuery setRequestedFields(FieldDef<AccountState, ?>... fields) {
super.setRequestedFields(fields);
return this;
}
@Override
public InternalAccountQuery noFields() {
super.noFields();
return this;
}
public List<AccountState> byDefault(String query) throws OrmException {
return query(AccountPredicates.defaultPredicate(schema(), true, query));
}
public List<AccountState> byExternalId(String scheme, String id) throws OrmException {
return byExternalId(ExternalId.Key.create(scheme, id));
}
public List<AccountState> byExternalId(ExternalId.Key externalId) throws OrmException {
return query(AccountPredicates.externalIdIncludingSecondaryEmails(externalId.toString()));
}
public List<AccountState> byFullName(String fullName) throws OrmException {
return query(AccountPredicates.fullName(fullName));
}
/**
* Queries for accounts that have a preferred email that exactly matches the given email.
*
* @param email preferred email by which accounts should be found
* @return list of accounts that have a preferred email that exactly matches the given email
* @throws OrmException if query cannot be parsed
*/
public List<AccountState> byPreferredEmail(String email) throws OrmException {
if (hasPreferredEmailExact()) {
return query(AccountPredicates.preferredEmailExact(email));
}
if (!hasPreferredEmail()) {
return ImmutableList.of();
}
return query(AccountPredicates.preferredEmail(email)).stream()
.filter(a -> a.getAccount().getPreferredEmail().equals(email))
.collect(toList());
}
/**
* Makes multiple queries for accounts by preferred email (exact match).
*
* @param emails preferred emails by which accounts should be found
* @return multimap of the given emails to accounts that have a preferred email that exactly
* matches this email
* @throws OrmException if query cannot be parsed
*/
public Multimap<String, AccountState> byPreferredEmail(String... emails) throws OrmException {
List<String> emailList = Arrays.asList(emails);
if (hasPreferredEmailExact()) {
List<List<AccountState>> r =
query(emailList.stream().map(AccountPredicates::preferredEmailExact).collect(toList()));
Multimap<String, AccountState> accountsByEmail = ArrayListMultimap.create();
for (int i = 0; i < emailList.size(); i++) {
accountsByEmail.putAll(emailList.get(i), r.get(i));
}
return accountsByEmail;
}
if (!hasPreferredEmail()) {
return ImmutableListMultimap.of();
}
List<List<AccountState>> r =
query(emailList.stream().map(AccountPredicates::preferredEmail).collect(toList()));
Multimap<String, AccountState> accountsByEmail = ArrayListMultimap.create();
for (int i = 0; i < emailList.size(); i++) {
String email = emailList.get(i);
Set<AccountState> matchingAccounts =
r.get(i).stream()
.filter(a -> a.getAccount().getPreferredEmail().equals(email))
.collect(toSet());
accountsByEmail.putAll(email, matchingAccounts);
}
return accountsByEmail;
}
public List<AccountState> byWatchedProject(Project.NameKey project) throws OrmException {
return query(AccountPredicates.watchedProject(project));
}
private boolean hasField(FieldDef<AccountState, ?> field) {
Schema<AccountState> s = schema();
return (s != null && s.hasField(field));
}
private boolean hasPreferredEmail() {
return hasField(AccountField.PREFERRED_EMAIL);
}
private boolean hasPreferredEmailExact() {
return hasField(AccountField.PREFERRED_EMAIL_EXACT);
}
}
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