/*
* 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.cassandra;
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.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.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 CassandraConnectorFactory
implements ConnectorFactory
{
private final String name;
private final Map<String, String> optionalConfig;
public CassandraConnectorFactory(String name, Map<String, String> optionalConfig)
{
checkArgument(!isNullOrEmpty(name), "name is null or empty");
this.name = name;
this.optionalConfig = checkNotNull(optionalConfig, "optionalConfig is null");
}
@Override
public String getName()
{
return name;
}
@Override
public Connector create(String connectorId, Map<String, String> config)
{
checkNotNull(config, "config is null");
try {
Bootstrap app = new Bootstrap(
new NodeModule(),
new MBeanModule(),
new JsonModule(),
new CassandraClientModule(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();
CassandraMetadata metadata = injector.getInstance(CassandraMetadata.class);
CassandraSplitManager splitManager = injector.getInstance(CassandraSplitManager.class);
ConnectorRecordSetProvider recordSetProvider = injector.getInstance(CassandraRecordSetProvider.class);
CassandraHandleResolver handleResolver = injector.getInstance(CassandraHandleResolver.class);
ImmutableClassToInstanceMap.Builder<Object> builder = ImmutableClassToInstanceMap.builder();
builder.put(ConnectorMetadata.class, metadata);
builder.put(ConnectorSplitManager.class, splitManager);
builder.put(ConnectorRecordSetProvider.class, recordSetProvider);
builder.put(ConnectorHandleResolver.class, handleResolver);
return new CassandraConnector(builder.build());
}
catch (Exception e) {
throw Throwables.propagate(e);
}
}
}