/*
* 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.raptor;
import com.facebook.presto.spi.ColumnHandle;
import com.facebook.presto.spi.type.Type;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import java.util.Objects;
import static com.facebook.presto.spi.type.BigintType.BIGINT;
import static com.facebook.presto.spi.type.IntegerType.INTEGER;
import static com.facebook.presto.spi.type.VarcharType.createVarcharType;
import static java.util.Objects.requireNonNull;
public final class RaptorColumnHandle
implements ColumnHandle
{
// Generated rowId column for updates
private static final long SHARD_ROW_ID_COLUMN_ID = -1;
private static final String SHARD_ROW_ID_COLUMN_NAME = "$shard_row_id";
public static final long SHARD_UUID_COLUMN_ID = -2;
public static final String SHARD_UUID_COLUMN_NAME = "$shard_uuid";
public static final Type SHARD_UUID_COLUMN_TYPE = createVarcharType(36);
public static final long BUCKET_NUMBER_COLUMN_ID = -3;
public static final String BUCKET_NUMBER_COLUMN_NAME = "$bucket_number";
private final String connectorId;
private final String columnName;
private final long columnId;
private final Type columnType;
@JsonCreator
public RaptorColumnHandle(
@JsonProperty("connectorId") String connectorId,
@JsonProperty("columnName") String columnName,
@JsonProperty("columnId") long columnId,
@JsonProperty("columnType") Type columnType)
{
this.connectorId = requireNonNull(connectorId, "connectorId is null");
this.columnName = requireNonNull(columnName, "columnName is null");
this.columnId = columnId;
this.columnType = requireNonNull(columnType, "columnType is null");
}
@JsonProperty
public String getConnectorId()
{
return connectorId;
}
@JsonProperty
public String getColumnName()
{
return columnName;
}
@JsonProperty
public long getColumnId()
{
return columnId;
}
@JsonProperty
public Type getColumnType()
{
return columnType;
}
@Override
public String toString()
{
return connectorId + ":" + columnName + ":" + columnId + ":" + columnType;
}
@Override
public boolean equals(Object obj)
{
if (this == obj) {
return true;
}
if (obj == null || getClass() != obj.getClass()) {
return false;
}
RaptorColumnHandle other = (RaptorColumnHandle) obj;
return Objects.equals(this.columnId, other.columnId);
}
@Override
public int hashCode()
{
return Objects.hash(columnId);
}
public boolean isShardRowId()
{
return isShardRowIdColumn(columnId);
}
public boolean isShardUuid()
{
return isShardUuidColumn(columnId);
}
public boolean isBucketNumber()
{
return isBucketNumberColumn(columnId);
}
public static boolean isShardRowIdColumn(long columnId)
{
return columnId == SHARD_ROW_ID_COLUMN_ID;
}
public static RaptorColumnHandle shardRowIdHandle(String connectorId)
{
return new RaptorColumnHandle(connectorId, SHARD_ROW_ID_COLUMN_NAME, SHARD_ROW_ID_COLUMN_ID, BIGINT);
}
public static boolean isShardUuidColumn(long columnId)
{
return columnId == SHARD_UUID_COLUMN_ID;
}
public static RaptorColumnHandle shardUuidColumnHandle(String connectorId)
{
return new RaptorColumnHandle(connectorId, SHARD_UUID_COLUMN_NAME, SHARD_UUID_COLUMN_ID, SHARD_UUID_COLUMN_TYPE);
}
public static boolean isBucketNumberColumn(long columnId)
{
return columnId == BUCKET_NUMBER_COLUMN_ID;
}
public static RaptorColumnHandle bucketNumberColumnHandle(String connectorId)
{
return new RaptorColumnHandle(connectorId, BUCKET_NUMBER_COLUMN_NAME, BUCKET_NUMBER_COLUMN_ID, INTEGER);
}
public static boolean isHiddenColumn(long columnId)
{
return columnId < 0;
}
}