/*
* 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.example;
import com.facebook.presto.spi.Connector;
import com.facebook.presto.spi.ConnectorFactory;
import com.facebook.presto.spi.type.TypeManager;
import com.google.common.base.Throwables;
import com.google.common.collect.ImmutableMap;
import com.google.inject.Injector;
import io.airlift.bootstrap.Bootstrap;
import io.airlift.json.JsonModule;
import java.util.Map;
import static com.google.common.base.Preconditions.checkNotNull;
public class ExampleConnectorFactory
implements ConnectorFactory
{
private final TypeManager typeManager;
private final Map<String, String> optionalConfig;
public ExampleConnectorFactory(TypeManager typeManager, Map<String, String> optionalConfig)
{
this.typeManager = checkNotNull(typeManager, "typeManager is null");
this.optionalConfig = ImmutableMap.copyOf(checkNotNull(optionalConfig, "optionalConfig is null"));
}
@Override
public String getName()
{
return "example-http";
}
@Override
public Connector create(final String connectorId, Map<String, String> requiredConfig)
{
checkNotNull(requiredConfig, "requiredConfig is null");
checkNotNull(optionalConfig, "optionalConfig is null");
try {
// A plugin is not required to use Guice; it is just very convenient
Bootstrap app = new Bootstrap(
new JsonModule(),
new ExampleModule(connectorId, typeManager));
Injector injector = app
.strictConfig()
.doNotInitializeLogging()
.setRequiredConfigurationProperties(requiredConfig)
.setOptionalConfigurationProperties(optionalConfig)
.initialize();
return injector.getInstance(ExampleConnector.class);
}
catch (Exception e) {
throw Throwables.propagate(e);
}
}
}