/*
* 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.facebook.presto.hive;
import com.google.common.net.HostAndPort;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import com.google.inject.Binder;
import com.google.inject.Injector;
import com.google.inject.Module;
import com.google.inject.Provides;
import com.google.inject.Scopes;
import javax.inject.Singleton;
import java.net.URI;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Strings.isNullOrEmpty;
import static io.airlift.configuration.ConfigurationModule.bindConfig;
import static io.airlift.discovery.client.DiscoveryBinder.discoveryBinder;
import static org.weakref.jmx.ObjectNames.generatedNameOf;
import static org.weakref.jmx.guice.ExportBinder.newExporter;
public class HiveClientModule
implements Module
{
private final String connectorId;
public HiveClientModule(String connectorId)
{
this.connectorId = connectorId;
}
@Override
public void configure(Binder binder)
{
binder.bind(HiveConnectorId.class).toInstance(new HiveConnectorId(connectorId));
binder.bind(HiveClient.class).in(Scopes.SINGLETON);
binder.bind(FileSystemCache.class).in(Scopes.SINGLETON);
binder.bind(HdfsConfiguration.class).in(Scopes.SINGLETON);
binder.bind(FileSystemWrapper.class).toProvider(FileSystemWrapperProvider.class).in(Scopes.SINGLETON);
binder.bind(HdfsEnvironment.class).in(Scopes.SINGLETON);
bindConfig(binder).to(HiveClientConfig.class);
bindConfig(binder).to(HivePluginConfig.class);
binder.bind(CachingHiveMetastore.class).in(Scopes.SINGLETON);
newExporter(binder).export(CachingHiveMetastore.class)
.as(generatedNameOf(CachingHiveMetastore.class, connectorId));
binder.bind(DiscoveryLocatedHiveCluster.class).in(Scopes.SINGLETON);
binder.bind(HiveMetastoreClientFactory.class).in(Scopes.SINGLETON);
discoveryBinder(binder).bindSelector("hive-metastore");
}
@ForHiveClient
@Singleton
@Provides
public ExecutorService createHiveClientExecutor(HiveConnectorId hiveClientId)
{
return Executors.newCachedThreadPool(new ThreadFactoryBuilder().setDaemon(true).setNameFormat("hive-" + hiveClientId + "-%d").build());
}
@ForHiveMetastore
@Singleton
@Provides
public ExecutorService createCachingHiveMetastoreExecutor(HiveConnectorId hiveClientId, HiveClientConfig hiveClientConfig)
{
return Executors.newFixedThreadPool(
hiveClientConfig.getMaxMetastoreRefreshThreads(),
new ThreadFactoryBuilder().setDaemon(true).setNameFormat("hive-metastore-" + hiveClientId + "-%d").build());
}
@Singleton
@Provides
public HiveCluster createHiveCluster(Injector injector, HivePluginConfig config)
{
URI uri = checkNotNull(config.getMetastoreUri(), "metastoreUri is null");
String scheme = uri.getScheme();
checkArgument(!isNullOrEmpty(scheme), "metastoreUri scheme is missing: %s", uri);
switch (scheme) {
case "discovery":
return injector.getInstance(DiscoveryLocatedHiveCluster.class);
case "thrift":
checkArgument(uri.getHost() != null, "metastoreUri host is missing: %s", uri);
checkArgument(uri.getPort() != -1, "metastoreUri port is missing: %s", uri);
HostAndPort address = HostAndPort.fromParts(uri.getHost(), uri.getPort());
return new StaticHiveCluster(address, injector.getInstance(HiveMetastoreClientFactory.class));
}
throw new IllegalArgumentException("unsupported metastoreUri: " + uri);
}
}