/*
* Copyright © 2014 Cask Data, Inc.
*
* 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 co.cask.tigon.internal.app.runtime.distributed;
import co.cask.tephra.TransactionManager;
import co.cask.tephra.distributed.TransactionService;
import co.cask.tephra.persist.TransactionStateStorage;
import co.cask.tephra.runtime.TransactionStateStorageProvider;
import co.cask.tigon.app.guice.MetricsClientRuntimeModule;
import co.cask.tigon.conf.CConfiguration;
import co.cask.tigon.conf.Constants;
import co.cask.tigon.data.runtime.DataFabricModules;
import co.cask.tigon.data.runtime.HDFSTransactionStateStorageProvider;
import co.cask.tigon.data.runtime.TransactionManagerProvider;
import co.cask.tigon.guice.ConfigModule;
import co.cask.tigon.guice.DiscoveryRuntimeModule;
import co.cask.tigon.guice.IOModule;
import co.cask.tigon.guice.LocationRuntimeModule;
import co.cask.tigon.guice.ZKClientModule;
import co.cask.tigon.metrics.MetricsCollectionService;
import com.google.common.base.Throwables;
import com.google.common.util.concurrent.Service;
import com.google.inject.AbstractModule;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.Module;
import com.google.inject.name.Names;
import com.google.inject.util.Modules;
import org.apache.hadoop.conf.Configuration;
import org.apache.twill.api.TwillContext;
import org.apache.twill.zookeeper.ZKClientService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.List;
/**
* TwillRunnable to run Transaction Service through twill.
*/
public class TransactionServiceTwillRunnable extends AbstractServiceTwillRunnable {
private static final Logger LOG = LoggerFactory.getLogger(TransactionServiceTwillRunnable.class);
private ZKClientService zkClient;
private MetricsCollectionService metricsCollectionService;
private TransactionService txService;
public TransactionServiceTwillRunnable(String name, String cConfName, String hConfName) {
super(name, cConfName, hConfName);
}
@Override
protected void doInit(TwillContext context) {
try {
getCConfiguration().set(Constants.Transaction.ADDRESS, context.getHost().getCanonicalHostName());
LOG.info("Initializing runnable {}", name);
Injector injector = createGuiceInjector(getCConfiguration(), getConfiguration());
//Get Zookeeper Client Instances
zkClient = injector.getInstance(ZKClientService.class);
// Get the metrics collection service
metricsCollectionService = injector.getInstance(MetricsCollectionService.class);
// Get the Transaction Service
txService = injector.getInstance(TransactionService.class);
LOG.info("Runnable initialized {}", name);
} catch (Throwable t) {
LOG.error(t.getMessage(), t);
throw Throwables.propagate(t);
}
}
@Override
public void getServices(List<? super Service> services) {
services.add(zkClient);
services.add(metricsCollectionService);
services.add(txService);
}
static Injector createGuiceInjector(CConfiguration cConf, Configuration hConf) {
return Guice.createInjector(
new ConfigModule(cConf, hConf),
new IOModule(),
new ZKClientModule(),
createDataFabricModule(),
new LocationRuntimeModule().getDistributedModules(),
new DiscoveryRuntimeModule().getDistributedModules(),
new MetricsClientRuntimeModule().getDistributedModules()
);
}
private static Module createDataFabricModule() {
return Modules.override(new DataFabricModules().getDistributedModules()).with(new AbstractModule() {
@Override
protected void configure() {
// Bind to provider that create new instances of storage and tx manager every time.
bind(TransactionStateStorage.class).annotatedWith(Names.named("persist"))
.toProvider(HDFSTransactionStateStorageProvider.class);
bind(TransactionStateStorage.class).toProvider(TransactionStateStorageProvider.class);
bind(TransactionManager.class).toProvider(TransactionManagerProvider.class);
}
});
}
}