Line data    Source code

       1             : // Copyright (C) 2020 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.change;
      16             : 
      17             : import static com.google.common.collect.ImmutableList.toImmutableList;
      18             : 
      19             : import com.google.common.collect.ImmutableList;
      20             : import com.google.common.collect.ImmutableSet;
      21             : import com.google.gerrit.entities.HumanComment;
      22             : import com.google.gerrit.server.change.CommentThread;
      23             : import com.google.gerrit.server.change.CommentThreads;
      24             : import java.util.Collection;
      25             : 
      26             : /** A filter which only keeps comments which are part of an unresolved {@link CommentThread}. */
      27           2 : public class UnresolvedCommentFilter implements HumanCommentFilter {
      28             : 
      29             :   @Override
      30             :   public ImmutableList<HumanComment> filter(ImmutableList<HumanComment> comments) {
      31           2 :     ImmutableSet<CommentThread<HumanComment>> commentThreads =
      32           2 :         CommentThreads.forComments(comments).getThreads();
      33             : 
      34           2 :     return commentThreads.stream()
      35           2 :         .filter(CommentThread::unresolved)
      36           2 :         .map(CommentThread::comments)
      37           2 :         .flatMap(Collection::stream)
      38           2 :         .collect(toImmutableList());
      39             :   }
      40             : }