| // Copyright (C) 2020 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.plugins.codeowners.backend; |
| |
| import static java.util.Objects.requireNonNull; |
| |
| import com.google.gerrit.plugins.codeowners.config.CodeOwnersPluginConfiguration; |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| import java.util.Optional; |
| import org.eclipse.jgit.lib.ObjectId; |
| |
| /** |
| * API to read code owner configurations. |
| * |
| * <p>All calls which read code owners from code owner configurations are gathered here. Other |
| * classes should always use this class instead of accessing {@link CodeOwnerBackend} directly. |
| * |
| * <p>Read logic that is common for all {@link CodeOwnerBackend}s is implemented in this class so |
| * that we avoid code repetition in the code owner backends. |
| */ |
| @Singleton |
| public class CodeOwners { |
| private final CodeOwnersPluginConfiguration codeOwnersPluginConfiguration; |
| |
| @Inject |
| CodeOwners(CodeOwnersPluginConfiguration codeOwnersPluginConfiguration) { |
| this.codeOwnersPluginConfiguration = codeOwnersPluginConfiguration; |
| } |
| |
| /** |
| * Retrieves the code owner config for the given key from the given branch revision. |
| * |
| * @param codeOwnerConfigKey the key of the code owner config that should be retrieved |
| * @param revision the branch revision from which the code owner config should be loaded |
| * @return the code owner config for the given key if it exists, otherwise {@link |
| * Optional#empty()} |
| */ |
| public Optional<CodeOwnerConfig> get(CodeOwnerConfig.Key codeOwnerConfigKey, ObjectId revision) { |
| requireNonNull(codeOwnerConfigKey, "codeOwnerConfigKey"); |
| requireNonNull(revision, "revision"); |
| CodeOwnerBackend codeOwnerBackend = |
| codeOwnersPluginConfiguration.getBackend(codeOwnerConfigKey.branchNameKey()); |
| return codeOwnerBackend.getCodeOwnerConfig(codeOwnerConfigKey, revision); |
| } |
| |
| /** |
| * Retrieves the code owner config for the given key from the current revision of the branch. |
| * |
| * @param codeOwnerConfigKey the key of the code owner config that should be retrieved |
| * @return the code owner config for the given key if it exists, otherwise {@link |
| * Optional#empty()} |
| */ |
| public Optional<CodeOwnerConfig> getFromCurrentRevision(CodeOwnerConfig.Key codeOwnerConfigKey) { |
| requireNonNull(codeOwnerConfigKey, "codeOwnerConfigKey"); |
| CodeOwnerBackend codeOwnerBackend = |
| codeOwnersPluginConfiguration.getBackend(codeOwnerConfigKey.branchNameKey()); |
| return codeOwnerBackend.getCodeOwnerConfig(codeOwnerConfigKey, null); |
| } |
| } |