io.datakernel.launchers.crdt.CrdtFileServerLauncher Maven / Gradle / Ivy

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/*
 * Copyright (C) 2015-2018 SoftIndex LLC.
 *
 * 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 io.datakernel.launchers.crdt;

import io.datakernel.config.Config;
import io.datakernel.config.ConfigModule;
import io.datakernel.crdt.CrdtServer;
import io.datakernel.crdt.local.CrdtStorageFs;
import io.datakernel.di.annotation.Inject;
import io.datakernel.di.annotation.Provides;
import io.datakernel.di.core.Key;
import io.datakernel.di.module.AbstractModule;
import io.datakernel.di.module.Module;
import io.datakernel.eventloop.Eventloop;
import io.datakernel.jmx.JmxModule;
import io.datakernel.launcher.Launcher;
import io.datakernel.launcher.OnStart;
import io.datakernel.remotefs.LocalFsClient;
import io.datakernel.service.ServiceGraphModule;
import io.datakernel.trigger.TriggersModule;

import java.util.concurrent.CompletionStage;
import java.util.concurrent.ExecutorService;

import static io.datakernel.config.Config.ofClassPathProperties;
import static io.datakernel.config.Config.ofProperties;
import static io.datakernel.config.ConfigConverters.ofExecutor;
import static io.datakernel.config.ConfigConverters.ofPath;
import static io.datakernel.di.module.Modules.combine;
import static io.datakernel.launchers.initializers.Initializers.ofAbstractServer;

public abstract class CrdtFileServerLauncher, S> extends Launcher {
	public static final String PROPERTIES_FILE = "crdt-file-server.properties";

	@Inject
	CrdtServer crdtServer;

	@Provides
	Eventloop eventloop() {
		return Eventloop.create();
	}

	@Provides
	ExecutorService executor(Config config) {
		return config.get(ofExecutor(), "executor");
	}

	@Provides
	LocalFsClient localFsClient(Eventloop eventloop, ExecutorService executor, Config config) {
		return LocalFsClient.create(eventloop, config.get(ofPath(), "crdt.localPath"));
	}

	@Provides
	Config config() {
		return Config.create()
				.overrideWith(ofClassPathProperties(PROPERTIES_FILE, true))
				.overrideWith(ofProperties(System.getProperties()).getChild("config"));
	}

	@Override
	protected Module getModule() {
		return combine(
				ServiceGraphModule.create(),
				JmxModule.create(),
				TriggersModule.create(),
				ConfigModule.create()
						.printEffectiveConfig()
						.rebindImport(new Key>() {}, new Key>(OnStart.class) {}),
				getBusinessLogicModule());
	}

	protected abstract CrdtFileServerLogicModule getBusinessLogicModule();

	public abstract static class CrdtFileServerLogicModule, S> extends AbstractModule {
		@Provides
		CrdtServer crdtServer(Eventloop eventloop, CrdtStorageFs crdtClient, CrdtDescriptor descriptor, Config config) {
			return CrdtServer.create(eventloop, crdtClient, descriptor.getSerializer())
					.initialize(ofAbstractServer(config.getChild("crdt.server")));
		}

		@Provides
		CrdtStorageFs fsCrdtClient(Eventloop eventloop, LocalFsClient localFsClient, CrdtDescriptor descriptor, Config config) {
			return CrdtStorageFs.create(eventloop, localFsClient, descriptor.getSerializer(), descriptor.getCrdtFunction())
					.initialize(Initializers.ofFsCrdtClient(config.getChild("crdt.files")));
		}
	}

	@Override
	protected void run() throws Exception {
		awaitShutdown();
	}
}