| // 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.cache; |
| |
| import com.ericsson.gerrit.plugins.highavailability.forwarder.Context; |
| import com.ericsson.gerrit.plugins.highavailability.forwarder.Forwarder; |
| import com.google.gerrit.extensions.annotations.PluginName; |
| import com.google.gerrit.extensions.events.NewProjectCreatedListener; |
| import com.google.gerrit.extensions.events.ProjectDeletedListener; |
| import com.google.gerrit.extensions.events.ProjectEvent; |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| import java.util.concurrent.Executor; |
| |
| @Singleton |
| public class ProjectListUpdateHandler implements NewProjectCreatedListener, ProjectDeletedListener { |
| |
| private final Forwarder forwarder; |
| private final Executor executor; |
| private final String pluginName; |
| |
| @Inject |
| public ProjectListUpdateHandler( |
| Forwarder forwarder, @CacheExecutor Executor executor, @PluginName String pluginName) { |
| this.forwarder = forwarder; |
| this.executor = executor; |
| this.pluginName = pluginName; |
| } |
| |
| @Override |
| public void onNewProjectCreated( |
| com.google.gerrit.extensions.events.NewProjectCreatedListener.Event event) { |
| process(event, false); |
| } |
| |
| @Override |
| public void onProjectDeleted( |
| com.google.gerrit.extensions.events.ProjectDeletedListener.Event event) { |
| process(event, true); |
| } |
| |
| private void process(ProjectEvent event, boolean delete) { |
| if (!Context.isForwardedEvent()) { |
| executor.execute(new ProjectListUpdateTask(event.getProjectName(), delete)); |
| } |
| } |
| |
| class ProjectListUpdateTask implements Runnable { |
| private final String projectName; |
| private final boolean delete; |
| |
| ProjectListUpdateTask(String projectName, boolean delete) { |
| this.projectName = projectName; |
| this.delete = delete; |
| } |
| |
| @Override |
| public void run() { |
| if (delete) { |
| forwarder.removeFromProjectList(projectName); |
| } else { |
| forwarder.addToProjectList(projectName); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return String.format( |
| "[%s] Update project list in target instance: %s '%s'", |
| pluginName, delete ? "remove" : "add", projectName); |
| } |
| } |
| } |