Java tutorial
/* * Copyright (C) 2016 An Honest Effort LLC. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.anhonesteffort.p25; import com.amazonaws.services.kinesis.clientlibrary.lib.worker.Worker; import com.codahale.metrics.MetricRegistry; import com.google.common.util.concurrent.FutureCallback; import com.google.common.util.concurrent.Futures; import io.radiowitness.kinesis.consumer.KclConfigFactory; import org.anhonesteffort.p25.audio.ImbeConverterFactory; import org.anhonesteffort.p25.call.CallManager; import org.anhonesteffort.p25.consumer.KinesisP25ConsumerFactory; import org.anhonesteffort.p25.wav.TransferManagerFactory; import org.anhonesteffort.p25.wav.WaveHeaderFactory; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import pl.edu.icm.jlargearrays.ConcurrencyUtils; import java.io.IOException; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; public class Imbeef { private static final Logger log = LoggerFactory.getLogger(Imbeef.class); private final ImbeefConfig config; public Imbeef(ImbeefConfig config) { this.config = config; } public void run() { ImbeefMetrics.init(config, new MetricRegistry()); ImbeConverterFactory converters = new ImbeConverterFactory(); WaveHeaderFactory headers = new WaveHeaderFactory(); ExecutorService s3Pool = Executors.newFixedThreadPool(config.getS3PoolSize()); TransferManagerFactory transfers = new TransferManagerFactory(config, s3Pool); CallPipelineFactory pipelines = new CallPipelineFactory(config, converters, headers, transfers.create()); CallManager callManager = new CallManager(config, pipelines); KinesisP25ConsumerFactory consumers = new KinesisP25ConsumerFactory(callManager); Worker worker = new Worker.Builder().recordProcessorFactory(consumers) .config(new KclConfigFactory(config).create()).build(); Futures.addCallback(consumers.getErrorFuture(), new KclErrorCallback(worker, s3Pool)); worker.run(); } private static class KclErrorCallback implements FutureCallback<Void> { private final Worker worker; private final ExecutorService s3Pool; public KclErrorCallback(Worker worker, ExecutorService s3Pool) { this.worker = worker; this.s3Pool = s3Pool; } @Override public void onSuccess(Void aVoid) { log.error("exiting early with unknown error"); s3Pool.shutdownNow(); worker.shutdown(); ConcurrencyUtils.shutdownThreadPoolAndAwaitTermination(); System.exit(1); } @Override public void onFailure(Throwable throwable) { log.error("exiting early due to kcl error", throwable); s3Pool.shutdownNow(); worker.shutdown(); ConcurrencyUtils.shutdownThreadPoolAndAwaitTermination(); System.exit(1); } } public static void main(String[] args) throws IOException { new Imbeef(new ImbeefConfig()).run(); } }