/*
* 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.orc;
import com.facebook.hive.orc.OrcSerde;
import com.facebook.presto.hive.FileFormatDataSourceStats;
import com.facebook.presto.hive.HdfsEnvironment;
import com.facebook.presto.hive.HiveColumnHandle;
import com.facebook.presto.hive.HivePageSourceFactory;
import com.facebook.presto.orc.metadata.DwrfMetadataReader;
import com.facebook.presto.spi.ConnectorPageSource;
import com.facebook.presto.spi.ConnectorSession;
import com.facebook.presto.spi.predicate.TupleDomain;
import com.facebook.presto.spi.type.TypeManager;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.joda.time.DateTimeZone;
import javax.inject.Inject;
import java.util.List;
import java.util.Optional;
import java.util.Properties;
import static com.facebook.presto.hive.HiveSessionProperties.getOrcMaxBufferSize;
import static com.facebook.presto.hive.HiveSessionProperties.getOrcMaxMergeDistance;
import static com.facebook.presto.hive.HiveSessionProperties.getOrcStreamBufferSize;
import static com.facebook.presto.hive.HiveUtil.isDeserializerClass;
import static com.facebook.presto.hive.orc.OrcPageSourceFactory.createOrcPageSource;
import static java.util.Objects.requireNonNull;
public class DwrfPageSourceFactory
implements HivePageSourceFactory
{
private final TypeManager typeManager;
private final HdfsEnvironment hdfsEnvironment;
private final FileFormatDataSourceStats stats;
@Inject
public DwrfPageSourceFactory(TypeManager typeManager, HdfsEnvironment hdfsEnvironment, FileFormatDataSourceStats stats)
{
this.typeManager = requireNonNull(typeManager, "typeManager is null");
this.hdfsEnvironment = requireNonNull(hdfsEnvironment, "hdfsEnvironment is null");
this.stats = requireNonNull(stats, "stats is null");
}
@Override
public Optional<? extends ConnectorPageSource> createPageSource(Configuration configuration,
ConnectorSession session,
Path path,
long start,
long length,
Properties schema,
List<HiveColumnHandle> columns,
TupleDomain<HiveColumnHandle> effectivePredicate,
DateTimeZone hiveStorageTimeZone)
{
if (!isDeserializerClass(schema, OrcSerde.class)) {
return Optional.empty();
}
return Optional.of(createOrcPageSource(
new DwrfMetadataReader(),
hdfsEnvironment,
session.getUser(),
configuration,
path,
start,
length,
columns,
false,
effectivePredicate,
hiveStorageTimeZone,
typeManager,
getOrcMaxMergeDistance(session),
getOrcMaxBufferSize(session),
getOrcStreamBufferSize(session),
false,
stats));
}
}