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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.change;
import static com.google.gerrit.extensions.conditions.BooleanCondition.and;
import com.google.gerrit.common.TimeUtil;
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.DeleteChange.Input;
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.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;
@Singleton
public class DeleteChange extends RetryingRestModifyView<ChangeResource, Input, Response<?>>
implements UiAction<ChangeResource> {
public static class Input {}
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 (rsrc.getChange().getStatus() == Change.Status.MERGED) {
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(couldDeleteWhenIn(status), perm.testCond(ChangePermission.DELETE)));
}
private boolean couldDeleteWhenIn(Change.Status status) {
switch (status) {
case NEW:
case ABANDONED:
// New or abandoned changes can be deleted with the right permissions.
return true;
case MERGED:
// Merged changes should never be deleted.
return false;
}
return false;
}
}
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