/*
* 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.facebook.presto.spi.Connector;
import com.facebook.presto.spi.ConnectorFactory;
import com.facebook.presto.spi.ConnectorHandleResolver;
import com.facebook.presto.spi.ConnectorMetadata;
import com.facebook.presto.spi.ConnectorRecordSetProvider;
import com.facebook.presto.spi.ConnectorSplitManager;
import com.facebook.presto.spi.classloader.ClassLoaderSafeConnectorHandleResolver;
import com.facebook.presto.spi.classloader.ClassLoaderSafeConnectorMetadata;
import com.facebook.presto.spi.classloader.ClassLoaderSafeConnectorRecordSetProvider;
import com.facebook.presto.spi.classloader.ClassLoaderSafeConnectorSplitManager;
import com.facebook.presto.spi.classloader.ThreadContextClassLoader;
import com.google.common.base.Throwables;
import com.google.common.collect.ImmutableClassToInstanceMap;
import com.google.inject.Binder;
import com.google.inject.Injector;
import com.google.inject.Module;
import io.airlift.bootstrap.Bootstrap;
import io.airlift.discovery.client.DiscoveryModule;
import io.airlift.json.JsonModule;
import io.airlift.node.NodeModule;
import org.weakref.jmx.guice.MBeanModule;
import javax.management.MBeanServer;
import java.lang.management.ManagementFactory;
import java.util.Map;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Strings.isNullOrEmpty;
public class HiveConnectorFactory
implements ConnectorFactory
{
private final String name;
private final Map<String, String> optionalConfig;
private final ClassLoader classLoader;
public HiveConnectorFactory(String name, Map<String, String> optionalConfig, ClassLoader classLoader)
{
checkArgument(!isNullOrEmpty(name), "name is null or empty");
this.name = name;
this.optionalConfig = checkNotNull(optionalConfig, "optionalConfig is null");
this.classLoader = checkNotNull(classLoader, "classLoader is null");
}
@Override
public String getName()
{
return name;
}
@Override
public Connector create(String connectorId, Map<String, String> config)
{
checkNotNull(config, "config is null");
try (ThreadContextClassLoader ignored = new ThreadContextClassLoader(classLoader)) {
Bootstrap app = new Bootstrap(
new NodeModule(),
new DiscoveryModule(),
new MBeanModule(),
new JsonModule(),
new HiveClientModule(connectorId),
new Module()
{
@Override
public void configure(Binder binder)
{
MBeanServer platformMBeanServer = ManagementFactory.getPlatformMBeanServer();
binder.bind(MBeanServer.class).toInstance(new RebindSafeMBeanServer(platformMBeanServer));
}
}
);
Injector injector = app
.strictConfig()
.doNotInitializeLogging()
.setRequiredConfigurationProperties(config)
.setOptionalConfigurationProperties(optionalConfig)
.initialize();
HiveClient hiveClient = injector.getInstance(HiveClient.class);
ImmutableClassToInstanceMap.Builder<Object> builder = ImmutableClassToInstanceMap.builder();
builder.put(ConnectorMetadata.class, new ClassLoaderSafeConnectorMetadata(hiveClient, classLoader));
builder.put(ConnectorSplitManager.class, new ClassLoaderSafeConnectorSplitManager(hiveClient, classLoader));
builder.put(ConnectorRecordSetProvider.class, new ClassLoaderSafeConnectorRecordSetProvider(hiveClient, classLoader));
builder.put(ConnectorHandleResolver.class, new ClassLoaderSafeConnectorHandleResolver(hiveClient, classLoader));
return new HiveConnector(builder.build());
}
catch (Exception e) {
throw Throwables.propagate(e);
}
}
}