1 files changed, 104 insertions, 0 deletions
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/group/DeleteSubgroups.java b/gerrit-server/src/main/java/com/google/gerrit/server/group/DeleteSubgroups.java
new file mode 100644
index 0000000000..14df51b9d1
--- /dev/null
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/group/DeleteSubgroups.java
@@ -0,0 +1,104 @@
+// 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 com.google.common.collect.ImmutableList;
+import com.google.gerrit.common.data.GroupDescription;
+import com.google.gerrit.common.errors.NoSuchGroupException;
+import com.google.gerrit.extensions.restapi.AuthException;
+import com.google.gerrit.extensions.restapi.MethodNotAllowedException;
+import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
+import com.google.gerrit.extensions.restapi.Response;
+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.reviewdb.server.ReviewDb;
+import com.google.gerrit.server.account.GroupControl;
+import com.google.gerrit.server.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.HashSet;
+import java.util.Set;
+
+@Singleton
+public class DeleteSubgroups implements RestModifyView<GroupResource, Input> {
+  private final GroupsCollection groupsCollection;
+  private final Provider<ReviewDb> db;
+  private final Provider<GroupsUpdate> groupsUpdateProvider;
+
+  @Inject
+  DeleteSubgroups(
+      GroupsCollection groupsCollection,
+      Provider<ReviewDb> db,
+      @UserInitiated Provider<GroupsUpdate> groupsUpdateProvider) {
+    this.groupsCollection = groupsCollection;
+    this.db = db;
+    this.groupsUpdateProvider = groupsUpdateProvider;
+  }
+
+  @Override
+  public Response<?> apply(GroupResource resource, Input input)
+      throws AuthException, MethodNotAllowedException, UnprocessableEntityException, OrmException,
+          ResourceNotFoundException, IOException {
+    GroupDescription.Internal internalGroup =
+        resource.asInternalGroup().orElseThrow(MethodNotAllowedException::new);
+    input = Input.init(input);
+
+    final GroupControl control = resource.getControl();
+    if (!control.canRemoveGroup()) {
+      throw new AuthException(
+          String.format("Cannot delete groups from group %s", internalGroup.getName()));
+    }
+
+    Set<AccountGroup.UUID> subgroupsToRemove = new HashSet<>();
+    for (String subgroupIdentifier : input.groups) {
+      GroupDescription.Basic subgroup = groupsCollection.parse(subgroupIdentifier);
+      subgroupsToRemove.add(subgroup.getGroupUUID());
+    }
+
+    AccountGroup.UUID groupUuid = internalGroup.getGroupUUID();
+    try {
+      groupsUpdateProvider.get().removeSubgroups(db.get(), groupUuid, subgroupsToRemove);
+    } catch (NoSuchGroupException e) {
+      throw new ResourceNotFoundException(String.format("Group %s not found", groupUuid));
+    }
+
+    return Response.none();
+  }
+
+  @Singleton
+  static class DeleteSubgroup implements RestModifyView<SubgroupResource, DeleteSubgroup.Input> {
+    static class Input {}
+
+    private final Provider<DeleteSubgroups> delete;
+
+    @Inject
+    DeleteSubgroup(Provider<DeleteSubgroups> delete) {
+      this.delete = delete;
+    }
+
+    @Override
+    public Response<?> apply(SubgroupResource resource, Input input)
+        throws AuthException, MethodNotAllowedException, UnprocessableEntityException, OrmException,
+            ResourceNotFoundException, IOException {
+      AddSubgroups.Input in = new AddSubgroups.Input();
+      in.groups = ImmutableList.of(resource.getMember().get());
+      return delete.get().apply(resource, in);
+    }
+  }
+}