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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.Objects.requireNonNull;
import static java.util.stream.Collectors.joining;
import com.google.auto.value.AutoValue;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSetMultimap;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.entities.Account;
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.extensions.restapi.UnprocessableEntityException;
import com.google.gerrit.server.account.AccountResolver;
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 org.eclipse.jgit.errors.ConfigInvalidException;
@Singleton
public class NotifyResolver {
@AutoValue
public abstract static class Result {
public static Result none() {
return create(NotifyHandling.NONE);
}
public static Result all() {
return create(NotifyHandling.ALL);
}
public static Result create(NotifyHandling notifyHandling) {
return create(notifyHandling, ImmutableSetMultimap.of());
}
public static Result create(
NotifyHandling handling, ImmutableSetMultimap<RecipientType, Account.Id> recipients) {
return new AutoValue_NotifyResolver_Result(handling, recipients);
}
public abstract NotifyHandling handling();
public abstract ImmutableSetMultimap<RecipientType, Account.Id> accounts();
public Result withHandling(NotifyHandling notifyHandling) {
return create(notifyHandling, accounts());
}
public boolean shouldNotify() {
return !accounts().isEmpty() || !handling().equals(NotifyHandling.NONE);
}
}
private final AccountResolver accountResolver;
@Inject
NotifyResolver(AccountResolver accountResolver) {
this.accountResolver = accountResolver;
}
public Result resolve(
NotifyHandling handling, @Nullable Map<RecipientType, NotifyInfo> notifyDetails)
throws BadRequestException, IOException, ConfigInvalidException {
requireNonNull(handling);
ImmutableSetMultimap.Builder<RecipientType, Account.Id> b = ImmutableSetMultimap.builder();
if (notifyDetails != null) {
for (Map.Entry<RecipientType, NotifyInfo> e : notifyDetails.entrySet()) {
b.putAll(e.getKey(), find(e.getValue().accounts));
}
}
return Result.create(handling, b.build());
}
private ImmutableList<Account.Id> find(@Nullable List<String> inputs)
throws BadRequestException, IOException, ConfigInvalidException {
if (inputs == null || inputs.isEmpty()) {
return ImmutableList.of();
}
ImmutableList.Builder<Account.Id> r = ImmutableList.builder();
List<String> problems = new ArrayList<>(inputs.size());
for (String nameOrEmail : inputs) {
try {
r.add(accountResolver.resolve(nameOrEmail).asUnique().account().id());
} catch (UnprocessableEntityException e) {
problems.add(e.getMessage());
}
}
if (!problems.isEmpty()) {
throw new BadRequestException(
"Some accounts that should be notified could not be resolved: "
+ problems.stream().collect(joining("\n")));
}
return r.build();
}
}