| // Copyright (C) 2019 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.googlesource.gerrit.plugins.multisite; |
| |
| import com.gerritforge.gerrit.globalrefdb.validation.ProjectDeletedSharedDbCleanup; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.flogger.FluentLogger; |
| import com.google.gerrit.extensions.events.ProjectDeletedListener; |
| import com.google.gerrit.extensions.registration.DynamicSet; |
| import com.google.gerrit.lifecycle.LifecycleModule; |
| import com.google.gerrit.server.git.WorkQueue; |
| import com.google.inject.AbstractModule; |
| import com.google.inject.Inject; |
| import com.google.inject.Injector; |
| import com.google.inject.ProvisionException; |
| import com.google.inject.Scopes; |
| import com.googlesource.gerrit.plugins.multisite.broker.BrokerApiWrapper; |
| import com.googlesource.gerrit.plugins.multisite.consumer.MultiSiteConsumerRunner; |
| import com.googlesource.gerrit.plugins.multisite.consumer.ReplicationStatusModule; |
| import com.googlesource.gerrit.plugins.multisite.consumer.SubscriberModule; |
| import com.googlesource.gerrit.plugins.multisite.event.EventModule; |
| import com.googlesource.gerrit.plugins.multisite.forwarder.broker.BrokerForwarderModule; |
| |
| public class PluginModule extends LifecycleModule { |
| private static final FluentLogger log = FluentLogger.forEnclosingClass(); |
| private static final String[] FILTER_MODULES_CLASS_NAMES = |
| new String[] { |
| /* Class names are defined as String for avoiding this class failing to load |
| * if either replication or pull-replication plugins are missing. |
| */ |
| "com.googlesource.gerrit.plugins.multisite.validation.PullReplicationFilterModule", |
| "com.googlesource.gerrit.plugins.multisite.validation.PushReplicationFilterModule" |
| }; |
| |
| private final Configuration config; |
| private final WorkQueue workQueue; |
| private final Injector parentInjector; |
| |
| @Inject |
| public PluginModule(Configuration config, WorkQueue workQueue, Injector parentInjector) { |
| this.config = config; |
| this.workQueue = workQueue; |
| this.parentInjector = parentInjector; |
| } |
| |
| @Override |
| protected void configure() { |
| if (config.index().synchronize() |
| || config.cache().synchronize() |
| || config.event().synchronize()) { |
| install(new EventModule(config)); |
| bind(BrokerApiWrapper.class).in(Scopes.SINGLETON); |
| install(new SubscriberModule()); |
| |
| install(new BrokerForwarderModule()); |
| listener().to(MultiSiteConsumerRunner.class); |
| |
| install(new ReplicationStatusModule(workQueue)); |
| } |
| |
| if (config.getSharedRefDbConfiguration().getSharedRefDb().isEnabled()) { |
| listener().to(PluginStartup.class); |
| DynamicSet.bind(binder(), ProjectDeletedListener.class) |
| .to(ProjectDeletedSharedDbCleanup.class); |
| } |
| |
| detectFilterModules() |
| .forEach( |
| mod -> { |
| install(mod); |
| log.atInfo().log( |
| "Replication filter module %s installed successfully", |
| mod.getClass().getSimpleName()); |
| }); |
| } |
| |
| private Iterable<AbstractModule> detectFilterModules() { |
| ImmutableList.Builder<AbstractModule> filterModulesBuilder = ImmutableList.builder(); |
| |
| for (String filterClassName : FILTER_MODULES_CLASS_NAMES) { |
| try { |
| @SuppressWarnings("unchecked") |
| Class<AbstractModule> filterClass = (Class<AbstractModule>) Class.forName(filterClassName); |
| |
| AbstractModule filterModule = parentInjector.getInstance(filterClass); |
| // Check if the filterModule would be valid for creating a child Guice Injector |
| parentInjector.createChildInjector(filterModule); |
| |
| filterModulesBuilder.add(filterModule); |
| } catch (NoClassDefFoundError | ClassNotFoundException e) { |
| log.atFine().withCause(e).log( |
| "Not loading %s because of missing the associated replication plugin", filterClassName); |
| } catch (Exception e) { |
| throw new ProvisionException( |
| "Unable to instantiate replication filter " + filterClassName, e); |
| } |
| } |
| |
| return filterModulesBuilder.build(); |
| } |
| } |