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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.change;
import static java.util.stream.Collectors.joining;
import com.google.common.collect.ImmutableListMultimap;
import com.google.common.collect.ListMultimap;
import com.google.common.collect.MultimapBuilder;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.extensions.api.changes.NotifyHandling;
import com.google.gerrit.extensions.api.changes.NotifyInfo;
import com.google.gerrit.extensions.api.changes.RecipientType;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.server.account.AccountResolver;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.eclipse.jgit.errors.ConfigInvalidException;
@Singleton
public class NotifyUtil {
private final AccountResolver accountResolver;
@Inject
NotifyUtil(AccountResolver accountResolver) {
this.accountResolver = accountResolver;
}
public static boolean shouldNotify(
NotifyHandling notify, @Nullable Map<RecipientType, NotifyInfo> notifyDetails) {
if (!isNullOrEmpty(notifyDetails)) {
return true;
}
return notify.compareTo(NotifyHandling.NONE) > 0;
}
private static boolean isNullOrEmpty(@Nullable Map<RecipientType, NotifyInfo> notifyDetails) {
if (notifyDetails == null || notifyDetails.isEmpty()) {
return true;
}
for (NotifyInfo notifyInfo : notifyDetails.values()) {
if (!isEmpty(notifyInfo)) {
return false;
}
}
return true;
}
private static boolean isEmpty(NotifyInfo notifyInfo) {
return notifyInfo.accounts == null || notifyInfo.accounts.isEmpty();
}
public ListMultimap<RecipientType, Account.Id> resolveAccounts(
@Nullable Map<RecipientType, NotifyInfo> notifyDetails)
throws OrmException, BadRequestException, IOException, ConfigInvalidException {
if (isNullOrEmpty(notifyDetails)) {
return ImmutableListMultimap.of();
}
ListMultimap<RecipientType, Account.Id> m = null;
for (Entry<RecipientType, NotifyInfo> e : notifyDetails.entrySet()) {
List<String> accounts = e.getValue().accounts;
if (accounts != null) {
if (m == null) {
m = MultimapBuilder.hashKeys().arrayListValues().build();
}
m.putAll(e.getKey(), find(accounts));
}
}
return m != null ? m : ImmutableListMultimap.of();
}
private List<Account.Id> find(List<String> nameOrEmails)
throws OrmException, BadRequestException, IOException, ConfigInvalidException {
List<String> missing = new ArrayList<>(nameOrEmails.size());
List<Account.Id> r = new ArrayList<>(nameOrEmails.size());
for (String nameOrEmail : nameOrEmails) {
Account a = accountResolver.find(nameOrEmail);
if (a != null) {
r.add(a.getId());
} else {
missing.add(nameOrEmail);
}
}
if (!missing.isEmpty()) {
throw new BadRequestException(
"The following accounts that should be notified could not be resolved: "
+ missing.stream().distinct().sorted().collect(joining(", ")));
}
return r;
}
}
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