/*
* 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;
import com.facebook.presto.spi.ColumnHandle;
import com.facebook.presto.spi.ConnectorTableLayoutHandle;
import com.facebook.presto.spi.predicate.TupleDomain;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.collect.ImmutableList;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import static java.util.Objects.requireNonNull;
public final class HiveTableLayoutHandle
implements ConnectorTableLayoutHandle
{
private final String clientId;
private final List<ColumnHandle> partitionColumns;
private final List<HivePartition> partitions;
private final TupleDomain<ColumnHandle> promisedPredicate;
private final Optional<HiveBucketHandle> bucketHandle;
@JsonCreator
public HiveTableLayoutHandle(
@JsonProperty("clientId") String clientId,
@JsonProperty("partitionColumns") List<ColumnHandle> partitionColumns,
@JsonProperty("promisedPredicate") TupleDomain<ColumnHandle> promisedPredicate,
@JsonProperty("bucketHandle") Optional<HiveBucketHandle> bucketHandle)
{
this.clientId = requireNonNull(clientId, "clientId is null");
this.partitionColumns = ImmutableList.copyOf(requireNonNull(partitionColumns, "partitionColumns is null"));
this.partitions = null;
this.promisedPredicate = requireNonNull(promisedPredicate, "promisedPredicate is null");
this.bucketHandle = requireNonNull(bucketHandle, "bucketHandle is null");
}
public HiveTableLayoutHandle(
String clientId,
List<ColumnHandle> partitionColumns,
List<HivePartition> partitions,
TupleDomain<ColumnHandle> promisedPredicate,
Optional<HiveBucketHandle> bucketHandle)
{
this.clientId = requireNonNull(clientId, "clientId is null");
this.partitionColumns = ImmutableList.copyOf(requireNonNull(partitionColumns, "partitionColumns is null"));
this.partitions = requireNonNull(partitions, "partitions is null");
this.promisedPredicate = requireNonNull(promisedPredicate, "promisedPredicate is null");
this.bucketHandle = requireNonNull(bucketHandle, "bucketHandle is null");
}
@JsonProperty
public String getClientId()
{
return clientId;
}
@JsonProperty
public List<ColumnHandle> getPartitionColumns()
{
return partitionColumns;
}
/**
* Partitions are dropped when HiveTableLayoutHandle is serialized.
*
* @return list of partitions if avaiable, Optional.empty() if dropped
*/
@JsonIgnore
public Optional<List<HivePartition>> getPartitions()
{
return Optional.ofNullable(partitions);
}
@JsonProperty
public TupleDomain<ColumnHandle> getPromisedPredicate()
{
return promisedPredicate;
}
@JsonProperty
public Optional<HiveBucketHandle> getBucketHandle()
{
return bucketHandle;
}
@Override
public boolean equals(Object o)
{
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
HiveTableLayoutHandle that = (HiveTableLayoutHandle) o;
return Objects.equals(clientId, that.clientId) &&
Objects.equals(partitionColumns, that.partitionColumns) &&
Objects.equals(partitions, that.partitions);
}
@Override
public int hashCode()
{
return Objects.hash(clientId, partitionColumns, partitions);
}
@Override
public String toString()
{
return clientId.toString();
}
}