| // Copyright (C) 2023 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.query.change; |
| |
| import com.google.gerrit.entities.BranchNameKey; |
| import com.google.gerrit.entities.Change; |
| import com.google.gerrit.exceptions.StorageException; |
| import com.google.gerrit.index.query.OrPredicate; |
| import com.google.gerrit.index.query.Predicate; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| |
| /** A Predicate to match any number of BranchNameKeys with O(1) efficiency */ |
| public class BranchSetIndexPredicate extends OrPredicate<ChangeData> { |
| private final String name; |
| private final Set<BranchNameKey> branches; |
| |
| public BranchSetIndexPredicate(String name, Set<BranchNameKey> branches) throws StorageException { |
| super(getPredicates(branches)); |
| this.name = name; |
| this.branches = branches; |
| } |
| |
| @Override |
| public boolean match(ChangeData changeData) { |
| Change change = changeData.change(); |
| if (change == null) { |
| return false; |
| } |
| |
| return branches.contains(change.getDest()); |
| } |
| |
| @Override |
| public String toString() { |
| return "BranchSetIndexPredicate[" + name + "]" + super.toString(); |
| } |
| |
| private static List<Predicate<ChangeData>> getPredicates(Set<BranchNameKey> branches) { |
| return branches.stream() |
| .map( |
| branchNameKey -> |
| Predicate.and( |
| ChangePredicates.project(branchNameKey.project()), |
| ChangePredicates.ref(branchNameKey.branch()))) |
| .collect(Collectors.toList()); |
| } |
| } |