/*
* 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.tpch.testing;
import com.facebook.presto.spi.Connector;
import com.facebook.presto.spi.ConnectorFactory;
import com.facebook.presto.spi.ConnectorHandleResolver;
import com.facebook.presto.spi.ConnectorIndexResolver;
import com.facebook.presto.spi.ConnectorMetadata;
import com.facebook.presto.spi.ConnectorRecordSetProvider;
import com.facebook.presto.spi.ConnectorRecordSinkProvider;
import com.facebook.presto.spi.ConnectorSplitManager;
import com.facebook.presto.spi.NodeManager;
import com.facebook.presto.tpch.TpchHandleResolver;
import com.facebook.presto.tpch.TpchSplitManager;
import com.google.common.base.Objects;
import java.util.Map;
import static com.google.common.base.Preconditions.checkNotNull;
public class SampledTpchConnectorFactory
implements ConnectorFactory
{
private final NodeManager nodeManager;
private final int defaultSplitsPerNode;
private final int sampleWeight;
public SampledTpchConnectorFactory(NodeManager nodeManager, int defaultSplitsPerNode, int sampleWeight)
{
this.nodeManager = checkNotNull(nodeManager, "nodeManager is null");
this.defaultSplitsPerNode = defaultSplitsPerNode;
this.sampleWeight = sampleWeight;
}
@Override
public String getName()
{
return "tpch_sampled";
}
@Override
public Connector create(final String connectorId, Map<String, String> properties)
{
checkNotNull(properties, "properties is null");
final int splitsPerNode = getSplitsPerNode(properties);
return new Connector() {
@Override
public ConnectorMetadata getMetadata()
{
return new SampledTpchMetadata(connectorId);
}
@Override
public ConnectorSplitManager getSplitManager()
{
return new TpchSplitManager(connectorId, nodeManager, splitsPerNode);
}
@Override
public ConnectorHandleResolver getHandleResolver()
{
return new TpchHandleResolver(connectorId);
}
@Override
public ConnectorRecordSetProvider getRecordSetProvider()
{
return new SampledTpchRecordSetProvider(connectorId, sampleWeight);
}
@Override
public ConnectorRecordSinkProvider getRecordSinkProvider()
{
throw new UnsupportedOperationException();
}
@Override
public ConnectorIndexResolver getIndexResolver()
{
throw new UnsupportedOperationException();
}
};
}
private int getSplitsPerNode(Map<String, String> properties)
{
try {
return Integer.parseInt(Objects.firstNonNull(properties.get("tpch.splits-per-node"), String.valueOf(defaultSplitsPerNode)));
}
catch (NumberFormatException e) {
throw new IllegalArgumentException("Invalid property tpch.splits-per-node");
}
}
}