| // 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.change; |
| |
| import static com.google.gerrit.extensions.conditions.BooleanCondition.and; |
| |
| import com.google.gerrit.extensions.common.Input; |
| import com.google.gerrit.extensions.restapi.MethodNotAllowedException; |
| import com.google.gerrit.extensions.restapi.Response; |
| import com.google.gerrit.extensions.restapi.RestApiException; |
| import com.google.gerrit.extensions.webui.UiAction; |
| import com.google.gerrit.reviewdb.client.Change; |
| import com.google.gerrit.reviewdb.server.ReviewDb; |
| import com.google.gerrit.server.change.ChangeResource; |
| import com.google.gerrit.server.permissions.ChangePermission; |
| import com.google.gerrit.server.permissions.PermissionBackend; |
| import com.google.gerrit.server.permissions.PermissionBackendException; |
| import com.google.gerrit.server.update.BatchUpdate; |
| import com.google.gerrit.server.update.Order; |
| 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.Provider; |
| import com.google.inject.Singleton; |
| |
| @Singleton |
| public class DeleteChange extends RetryingRestModifyView<ChangeResource, Input, Response<?>> |
| implements UiAction<ChangeResource> { |
| |
| private final Provider<ReviewDb> db; |
| private final Provider<DeleteChangeOp> opProvider; |
| |
| @Inject |
| public DeleteChange( |
| Provider<ReviewDb> db, RetryHelper retryHelper, Provider<DeleteChangeOp> opProvider) { |
| super(retryHelper); |
| this.db = db; |
| this.opProvider = opProvider; |
| } |
| |
| @Override |
| protected Response<?> applyImpl( |
| BatchUpdate.Factory updateFactory, ChangeResource rsrc, Input input) |
| throws RestApiException, UpdateException, PermissionBackendException { |
| if (!isChangeDeletable(rsrc.getChange().getStatus())) { |
| throw new MethodNotAllowedException("delete not permitted"); |
| } |
| rsrc.permissions().database(db).check(ChangePermission.DELETE); |
| |
| try (BatchUpdate bu = |
| updateFactory.create(db.get(), rsrc.getProject(), rsrc.getUser(), TimeUtil.nowTs())) { |
| Change.Id id = rsrc.getChange().getId(); |
| bu.setOrder(Order.DB_BEFORE_REPO); |
| bu.addOp(id, opProvider.get()); |
| bu.execute(); |
| } |
| return Response.none(); |
| } |
| |
| @Override |
| public UiAction.Description getDescription(ChangeResource rsrc) { |
| Change.Status status = rsrc.getChange().getStatus(); |
| PermissionBackend.ForChange perm = rsrc.permissions().database(db); |
| return new UiAction.Description() |
| .setLabel("Delete") |
| .setTitle("Delete change " + rsrc.getId()) |
| .setVisible(and(isChangeDeletable(status), perm.testCond(ChangePermission.DELETE))); |
| } |
| |
| private static boolean isChangeDeletable(Change.Status status) { |
| if (status == Change.Status.MERGED) { |
| // Merged changes should never be deleted. |
| return false; |
| } |
| // New or abandoned changes can be deleted with the right permissions. |
| return true; |
| } |
| } |