/*
* Copyright © 2015 Cask Data, Inc.
*
* 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 co.cask.cdap.data2.util.hbase;
import co.cask.cdap.data2.util.TableId;
import co.cask.cdap.proto.Id;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.TableName;
/**
* Utility methods for dealing with HBase table name conversions in HBase 0.98.
*/
public class HTable10NameConverter extends HTableNameConverter {
@Override
public String getSysConfigTablePrefix(HTableDescriptor htd) {
return getNamespacePrefix(htd) + "_" + Id.Namespace.SYSTEM.getId() + ":";
}
@Override
public TableId from(HTableDescriptor htd) {
return prefixedTableIdFromTableName(htd.getTableName()).getTableId();
}
@Override
public String getNamespacePrefix(HTableDescriptor htd) {
return prefixedTableIdFromTableName(htd.getTableName()).getTablePrefix();
}
public TableName toTableName(String tablePrefix, TableId tableId) {
return TableName.valueOf(toHBaseNamespace(tablePrefix, tableId.getNamespace()),
getHBaseTableName(tablePrefix, tableId));
}
private PrefixedTableId prefixedTableIdFromTableName(TableName tableName) {
return fromHBaseTableName(tableName.getNamespaceAsString(), tableName.getQualifierAsString());
}
}