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Presto - Iceberg Connector

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/*
 * 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.iceberg;

import com.facebook.presto.spi.ConnectorHandleResolver;
import com.facebook.presto.spi.connector.Connector;
import com.facebook.presto.spi.connector.ConnectorContext;
import com.facebook.presto.spi.connector.ConnectorFactory;

import java.lang.reflect.InvocationTargetException;
import java.util.Map;
import java.util.Optional;

import static com.google.common.base.Throwables.throwIfUnchecked;

public class IcebergConnectorFactory
        implements ConnectorFactory
{
    @Override
    public String getName()
    {
        return "iceberg";
    }

    @Override
    public ConnectorHandleResolver getHandleResolver()
    {
        return new IcebergHandleResolver();
    }

    @Override
    public Connector create(String catalogName, Map config, ConnectorContext context)
    {
        ClassLoader classLoader = IcebergConnectorFactory.class.getClassLoader();
        try {
            return (Connector) classLoader.loadClass(InternalIcebergConnectorFactory.class.getName())
                    .getMethod("createConnector", String.class, Map.class, ConnectorContext.class, Optional.class)
                    .invoke(null, catalogName, config, context, Optional.empty());
        }
        catch (InvocationTargetException e) {
            Throwable targetException = e.getTargetException();
            throwIfUnchecked(targetException);
            throw new RuntimeException(targetException);
        }
        catch (ReflectiveOperationException e) {
            throw new RuntimeException(e);
        }
    }
}