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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.restapi.change;
import com.google.gerrit.entities.Account;
import com.google.gerrit.entities.Change;
import com.google.gerrit.entities.ChangeMessage;
import com.google.gerrit.extensions.common.AccountInfo;
import com.google.gerrit.extensions.common.Input;
import com.google.gerrit.extensions.restapi.Response;
import com.google.gerrit.extensions.restapi.RestApiException;
import com.google.gerrit.server.ChangeMessagesUtil;
import com.google.gerrit.server.IdentifiedUser;
import com.google.gerrit.server.account.AccountLoader;
import com.google.gerrit.server.account.AccountState;
import com.google.gerrit.server.change.ChangeResource;
import com.google.gerrit.server.extensions.events.AssigneeChanged;
import com.google.gerrit.server.notedb.ChangeUpdate;
import com.google.gerrit.server.permissions.ChangePermission;
import com.google.gerrit.server.permissions.PermissionBackendException;
import com.google.gerrit.server.update.BatchUpdate;
import com.google.gerrit.server.update.BatchUpdateOp;
import com.google.gerrit.server.update.ChangeContext;
import com.google.gerrit.server.update.Context;
import com.google.gerrit.server.update.RetryHelper;
import com.google.gerrit.server.update.RetryingRestModifyView;
import com.google.gerrit.server.update.UpdateException;
import com.google.gerrit.server.util.time.TimeUtil;
import com.google.inject.Inject;
import com.google.inject.Singleton;
@Singleton
public class DeleteAssignee extends RetryingRestModifyView<ChangeResource, Input, AccountInfo> {
private final ChangeMessagesUtil cmUtil;
private final AssigneeChanged assigneeChanged;
private final IdentifiedUser.GenericFactory userFactory;
private final AccountLoader.Factory accountLoaderFactory;
@Inject
DeleteAssignee(
RetryHelper retryHelper,
ChangeMessagesUtil cmUtil,
AssigneeChanged assigneeChanged,
IdentifiedUser.GenericFactory userFactory,
AccountLoader.Factory accountLoaderFactory) {
super(retryHelper);
this.cmUtil = cmUtil;
this.assigneeChanged = assigneeChanged;
this.userFactory = userFactory;
this.accountLoaderFactory = accountLoaderFactory;
}
@Override
protected Response<AccountInfo> applyImpl(
BatchUpdate.Factory updateFactory, ChangeResource rsrc, Input input)
throws RestApiException, UpdateException, PermissionBackendException {
rsrc.permissions().check(ChangePermission.EDIT_ASSIGNEE);
try (BatchUpdate bu =
updateFactory.create(rsrc.getProject(), rsrc.getUser(), TimeUtil.nowTs())) {
Op op = new Op();
bu.addOp(rsrc.getChange().getId(), op);
bu.execute();
Account.Id deletedAssignee = op.getDeletedAssignee();
return deletedAssignee == null
? Response.none()
: Response.ok(accountLoaderFactory.create(true).fillOne(deletedAssignee));
}
}
private class Op implements BatchUpdateOp {
private Change change;
private AccountState deletedAssignee;
@Override
public boolean updateChange(ChangeContext ctx) throws RestApiException {
change = ctx.getChange();
ChangeUpdate update = ctx.getUpdate(change.currentPatchSetId());
Account.Id currentAssigneeId = change.getAssignee();
if (currentAssigneeId == null) {
return false;
}
IdentifiedUser deletedAssigneeUser = userFactory.create(currentAssigneeId);
deletedAssignee = deletedAssigneeUser.state();
// noteDb
update.removeAssignee();
// reviewDb
change.setAssignee(null);
addMessage(ctx, update, deletedAssigneeUser);
return true;
}
public Account.Id getDeletedAssignee() {
return deletedAssignee != null ? deletedAssignee.account().id() : null;
}
private void addMessage(
ChangeContext ctx, ChangeUpdate update, IdentifiedUser deletedAssignee) {
ChangeMessage cmsg =
ChangeMessagesUtil.newMessage(
ctx,
"Assignee deleted: " + deletedAssignee.getNameEmail(),
ChangeMessagesUtil.TAG_DELETE_ASSIGNEE);
cmUtil.addChangeMessage(update, cmsg);
}
@Override
public void postUpdate(Context ctx) {
assigneeChanged.fire(change, ctx.getAccount(), deletedAssignee, ctx.getWhen());
}
}
}