Line data    Source code

       1             : // Copyright (C) 2013 The Android Open Source Project
       2             : //
       3             : // Licensed under the Apache License, Version 2.0 (the "License");
       4             : // you may not use this file except in compliance with the License.
       5             : // You may obtain a copy of the License at
       6             : //
       7             : // http://www.apache.org/licenses/LICENSE-2.0
       8             : //
       9             : // Unless required by applicable law or agreed to in writing, software
      10             : // distributed under the License is distributed on an "AS IS" BASIS,
      11             : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             : // See the License for the specific language governing permissions and
      13             : // limitations under the License.
      14             : 
      15             : package com.google.gerrit.server.restapi.project;
      16             : 
      17             : import static com.google.gerrit.entities.RefNames.isConfigRef;
      18             : import static org.eclipse.jgit.lib.Constants.R_HEADS;
      19             : 
      20             : import com.google.gerrit.entities.RefNames;
      21             : import com.google.gerrit.extensions.common.Input;
      22             : import com.google.gerrit.extensions.restapi.MethodNotAllowedException;
      23             : import com.google.gerrit.extensions.restapi.ResourceConflictException;
      24             : import com.google.gerrit.extensions.restapi.Response;
      25             : import com.google.gerrit.extensions.restapi.RestApiException;
      26             : import com.google.gerrit.extensions.restapi.RestModifyView;
      27             : import com.google.gerrit.server.permissions.PermissionBackendException;
      28             : import com.google.gerrit.server.project.BranchResource;
      29             : import com.google.gerrit.server.query.change.InternalChangeQuery;
      30             : import com.google.inject.Inject;
      31             : import com.google.inject.Provider;
      32             : import com.google.inject.Singleton;
      33             : import java.io.IOException;
      34             : 
      35             : @Singleton
      36             : public class DeleteBranch implements RestModifyView<BranchResource, Input> {
      37             : 
      38             :   private final Provider<InternalChangeQuery> queryProvider;
      39             :   private final DeleteRef deleteRef;
      40             : 
      41             :   @Inject
      42         138 :   DeleteBranch(Provider<InternalChangeQuery> queryProvider, DeleteRef deleteRef) {
      43         138 :     this.queryProvider = queryProvider;
      44         138 :     this.deleteRef = deleteRef;
      45         138 :   }
      46             : 
      47             :   @Override
      48             :   public Response<?> apply(BranchResource rsrc, Input input)
      49             :       throws RestApiException, IOException, PermissionBackendException {
      50           4 :     if (RefNames.HEAD.equals(rsrc.getBranchKey().branch())) {
      51           1 :       throw new MethodNotAllowedException("not allowed to delete HEAD");
      52           4 :     } else if (isConfigRef(rsrc.getBranchKey().branch())) {
      53             :       // Never allow to delete the meta config branch.
      54           1 :       throw new MethodNotAllowedException(
      55           1 :           "not allowed to delete branch " + rsrc.getBranchKey().branch());
      56             :     }
      57             : 
      58           4 :     if (!queryProvider.get().setLimit(1).byBranchOpen(rsrc.getBranchKey()).isEmpty()) {
      59           0 :       throw new ResourceConflictException("branch " + rsrc.getBranchKey() + " has open changes");
      60             :     }
      61             : 
      62           4 :     deleteRef.deleteSingleRef(rsrc.getProjectState(), rsrc.getRef(), R_HEADS);
      63           4 :     return Response.none();
      64             :   }
      65             : }