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// Copyright (C) 2013 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.group;
import static com.google.common.collect.ImmutableSet.toImmutableSet;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Sets;
import com.google.gerrit.common.data.GroupDescription;
import com.google.gerrit.extensions.common.AccountInfo;
import com.google.gerrit.extensions.restapi.MethodNotAllowedException;
import com.google.gerrit.extensions.restapi.RestReadView;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.reviewdb.client.AccountGroup;
import com.google.gerrit.server.account.AccountLoader;
import com.google.gerrit.server.account.GroupCache;
import com.google.gerrit.server.account.GroupControl;
import com.google.gerrit.server.api.accounts.AccountInfoComparator;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import org.kohsuke.args4j.Option;
public class ListMembers implements RestReadView<GroupResource> {
private final GroupCache groupCache;
private final GroupControl.Factory groupControlFactory;
private final AccountLoader accountLoader;
@Option(name = "--recursive", usage = "to resolve included groups recursively")
private boolean recursive;
@Inject
protected ListMembers(
GroupCache groupCache,
GroupControl.Factory groupControlFactory,
AccountLoader.Factory accountLoaderFactory) {
this.groupCache = groupCache;
this.groupControlFactory = groupControlFactory;
this.accountLoader = accountLoaderFactory.create(true);
}
public ListMembers setRecursive(boolean recursive) {
this.recursive = recursive;
return this;
}
@Override
public List<AccountInfo> apply(GroupResource resource)
throws MethodNotAllowedException, OrmException {
GroupDescription.Internal group =
resource.asInternalGroup().orElseThrow(MethodNotAllowedException::new);
return apply(group.getGroupUUID());
}
public List<AccountInfo> apply(AccountGroup.UUID groupId) throws OrmException {
Set<Account.Id> members = getMembers(groupId, new HashSet<>());
List<AccountInfo> memberInfos = new ArrayList<>(members.size());
for (Account.Id member : members) {
memberInfos.add(accountLoader.get(member));
}
accountLoader.fill();
memberInfos.sort(AccountInfoComparator.ORDER_NULLS_FIRST);
return memberInfos;
}
private Set<Account.Id> getMembers(
AccountGroup.UUID groupUUID, HashSet<AccountGroup.UUID> seenGroups) {
seenGroups.add(groupUUID);
Optional<InternalGroup> internalGroup = groupCache.get(groupUUID);
if (!internalGroup.isPresent()) {
return ImmutableSet.of();
}
InternalGroup group = internalGroup.get();
GroupControl groupControl = groupControlFactory.controlFor(new InternalGroupDescription(group));
Set<Account.Id> directMembers =
group.getMembers().stream().filter(groupControl::canSeeMember).collect(toImmutableSet());
Set<Account.Id> indirectMembers = new HashSet<>();
if (recursive && groupControl.canSeeGroup()) {
for (AccountGroup.UUID subgroupUuid : group.getSubgroups()) {
if (!seenGroups.contains(subgroupUuid)) {
indirectMembers.addAll(getMembers(subgroupUuid, seenGroups));
}
}
}
return Sets.union(directMembers, indirectMembers);
}
}
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