1 files changed, 179 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/restapi/group/AddSubgroups.java b/java/com/google/gerrit/server/restapi/group/AddSubgroups.java
new file mode 100644
index 0000000000..9782ad3ecf
--- /dev/null
+++ b/java/com/google/gerrit/server/restapi/group/AddSubgroups.java
@@ -0,0 +1,179 @@
+// 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.restapi.group;
+
+import com.google.common.base.Strings;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Sets;
+import com.google.gerrit.common.data.GroupDescription;
+import com.google.gerrit.common.errors.NoSuchGroupException;
+import com.google.gerrit.extensions.common.GroupInfo;
+import com.google.gerrit.extensions.restapi.AuthException;
+import com.google.gerrit.extensions.restapi.DefaultInput;
+import com.google.gerrit.extensions.restapi.IdString;
+import com.google.gerrit.extensions.restapi.MethodNotAllowedException;
+import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
+import com.google.gerrit.extensions.restapi.RestCollectionCreateView;
+import com.google.gerrit.extensions.restapi.RestModifyView;
+import com.google.gerrit.extensions.restapi.UnprocessableEntityException;
+import com.google.gerrit.reviewdb.client.AccountGroup;
+import com.google.gerrit.server.UserInitiated;
+import com.google.gerrit.server.account.GroupControl;
+import com.google.gerrit.server.group.GroupResolver;
+import com.google.gerrit.server.group.GroupResource;
+import com.google.gerrit.server.group.SubgroupResource;
+import com.google.gerrit.server.group.db.GroupsUpdate;
+import com.google.gerrit.server.group.db.InternalGroupUpdate;
+import com.google.gerrit.server.permissions.PermissionBackendException;
+import com.google.gerrit.server.restapi.group.AddSubgroups.Input;
+import com.google.gwtorm.server.OrmException;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+import com.google.inject.Singleton;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Set;
+import org.eclipse.jgit.errors.ConfigInvalidException;
+
+@Singleton
+public class AddSubgroups implements RestModifyView<GroupResource, Input> {
+  public static class Input {
+    @DefaultInput String _oneGroup;
+
+    public List<String> groups;
+
+    public static Input fromGroups(List<String> groups) {
+      Input in = new Input();
+      in.groups = groups;
+      return in;
+    }
+
+    static Input init(Input in) {
+      if (in == null) {
+        in = new Input();
+      }
+      if (in.groups == null) {
+        in.groups = Lists.newArrayListWithCapacity(1);
+      }
+      if (!Strings.isNullOrEmpty(in._oneGroup)) {
+        in.groups.add(in._oneGroup);
+      }
+      return in;
+    }
+  }
+
+  private final GroupResolver groupResolver;
+  private final Provider<GroupsUpdate> groupsUpdateProvider;
+  private final GroupJson json;
+
+  @Inject
+  public AddSubgroups(
+      GroupResolver groupResolver,
+      @UserInitiated Provider<GroupsUpdate> groupsUpdateProvider,
+      GroupJson json) {
+    this.groupResolver = groupResolver;
+    this.groupsUpdateProvider = groupsUpdateProvider;
+    this.json = json;
+  }
+
+  @Override
+  public List<GroupInfo> apply(GroupResource resource, Input input)
+      throws NotInternalGroupException, AuthException, UnprocessableEntityException, OrmException,
+          ResourceNotFoundException, IOException, ConfigInvalidException,
+          PermissionBackendException {
+    GroupDescription.Internal group =
+        resource.asInternalGroup().orElseThrow(NotInternalGroupException::new);
+    input = Input.init(input);
+
+    GroupControl control = resource.getControl();
+    if (!control.canAddGroup()) {
+      throw new AuthException(String.format("Cannot add groups to group %s", group.getName()));
+    }
+
+    List<GroupInfo> result = new ArrayList<>();
+    Set<AccountGroup.UUID> subgroupUuids = new LinkedHashSet<>();
+    for (String subgroupIdentifier : input.groups) {
+      GroupDescription.Basic subgroup = groupResolver.parse(subgroupIdentifier);
+      subgroupUuids.add(subgroup.getGroupUUID());
+      result.add(json.format(subgroup));
+    }
+
+    AccountGroup.UUID groupUuid = group.getGroupUUID();
+    try {
+      addSubgroups(groupUuid, subgroupUuids);
+    } catch (NoSuchGroupException e) {
+      throw new ResourceNotFoundException(String.format("Group %s not found", groupUuid));
+    }
+    return result;
+  }
+
+  private void addSubgroups(
+      AccountGroup.UUID parentGroupUuid, Set<AccountGroup.UUID> newSubgroupUuids)
+      throws OrmException, NoSuchGroupException, IOException, ConfigInvalidException {
+    InternalGroupUpdate groupUpdate =
+        InternalGroupUpdate.builder()
+            .setSubgroupModification(subgroupUuids -> Sets.union(subgroupUuids, newSubgroupUuids))
+            .build();
+    groupsUpdateProvider.get().updateGroup(parentGroupUuid, groupUpdate);
+  }
+
+  @Singleton
+  public static class CreateSubgroup
+      implements RestCollectionCreateView<GroupResource, SubgroupResource, Input> {
+    private final AddSubgroups addSubgroups;
+
+    @Inject
+    public CreateSubgroup(AddSubgroups addSubgroups) {
+      this.addSubgroups = addSubgroups;
+    }
+
+    @Override
+    public GroupInfo apply(GroupResource resource, IdString id, Input input)
+        throws AuthException, MethodNotAllowedException, ResourceNotFoundException, OrmException,
+            IOException, ConfigInvalidException, PermissionBackendException {
+      AddSubgroups.Input in = new AddSubgroups.Input();
+      in.groups = ImmutableList.of(id.get());
+      try {
+        List<GroupInfo> list = addSubgroups.apply(resource, in);
+        if (list.size() == 1) {
+          return list.get(0);
+        }
+        throw new IllegalStateException();
+      } catch (UnprocessableEntityException e) {
+        throw new ResourceNotFoundException(id);
+      }
+    }
+  }
+
+  @Singleton
+  public static class UpdateSubgroup implements RestModifyView<SubgroupResource, Input> {
+    private final Provider<GetSubgroup> get;
+
+    @Inject
+    public UpdateSubgroup(Provider<GetSubgroup> get) {
+      this.get = get;
+    }
+
+    @Override
+    public GroupInfo apply(SubgroupResource resource, Input input)
+        throws OrmException, PermissionBackendException {
+      // Do nothing, the group is already included.
+      return get.get().apply(resource);
+    }
+  }
+}