| // Copyright (C) 2018 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.ericsson.gerrit.plugins.highavailability.forwarder; |
| |
| import com.google.gerrit.reviewdb.client.Project; |
| import com.google.gerrit.server.project.ProjectCache; |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| import java.io.IOException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Update project list cache. This class is meant to be used on the receiving side of the {@link |
| * Forwarder} since it will prevent project list updates to be forwarded again causing an infinite |
| * forwarding loop between the 2 nodes. |
| */ |
| @Singleton |
| public class ForwardedProjectListUpdateHandler { |
| private static final Logger log = |
| LoggerFactory.getLogger(ForwardedProjectListUpdateHandler.class); |
| |
| private final ProjectCache projectCache; |
| |
| @Inject |
| ForwardedProjectListUpdateHandler(ProjectCache projectCache) { |
| this.projectCache = projectCache; |
| } |
| |
| /** |
| * Update the project list, update will not be forwarded to the other node |
| * |
| * @param projectName the name of the project to add or remove. |
| * @param remove true to remove, false to add project. |
| * @throws IOException |
| */ |
| public void update(String projectName, boolean remove) throws IOException { |
| Project.NameKey projectKey = new Project.NameKey(projectName); |
| try { |
| Context.setForwardedEvent(true); |
| if (remove) { |
| projectCache.remove(projectKey); |
| log.debug("Removed {} from project list", projectName); |
| } else { |
| projectCache.onCreateProject(projectKey); |
| log.debug("Added {} to project list", projectName); |
| } |
| } finally { |
| Context.unsetForwardedEvent(); |
| } |
| } |
| } |