content: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.hive.service.cli.operation;
  
  import org.apache.hadoop.hive.conf.HiveConf;
  import org.apache.hadoop.hive.metastore.TableType;
  import org.apache.hadoop.hive.ql.security.authorization.plugin.HiveOperationType;
  import org.apache.hive.service.cli.FetchOrientation;
  import org.apache.hive.service.cli.HiveSQLException;
  import org.apache.hive.service.cli.OperationState;
  import org.apache.hive.service.cli.OperationType;
  import org.apache.hive.service.cli.RowSet;
  import org.apache.hive.service.cli.RowSetFactory;
  import org.apache.hive.service.cli.TableSchema;
  import org.apache.hive.service.cli.session.HiveSession;
  
  /**
   * GetTableTypesOperation.
   *
   */
  public class GetTableTypesOperation extends MetadataOperation {
  
    protected static TableSchema RESULT_SET_SCHEMA = new TableSchema()
    .addStringColumn("TABLE_TYPE", "Table type name.");
  
    private final RowSet rowSet;
    private final TableTypeMapping tableTypeMapping;
  
    protected GetTableTypesOperation(HiveSession parentSession) {
      super(parentSession, OperationType.GET_TABLE_TYPES);
      String tableMappingStr = getParentSession().getHiveConf()
        .getVar(HiveConf.ConfVars.HIVE_SERVER2_TABLE_TYPE_MAPPING);
      tableTypeMapping =
        TableTypeMappingFactory.getTableTypeMapping(tableMappingStr);
      rowSet = RowSetFactory.create(RESULT_SET_SCHEMA, getProtocolVersion());
    }
  
    @Override
    public void runInternal() throws HiveSQLException {
      setState(OperationState.RUNNING);
      if (isAuthV2Enabled()) {
        authorizeMetaGets(HiveOperationType.GET_TABLETYPES, null);
      }
      try {
        for (TableType type : TableType.values()) {
          rowSet.addRow(new String[] {tableTypeMapping.mapToClientType(type.toString())});
        }
        setState(OperationState.FINISHED);
      } catch (Exception e) {
        setState(OperationState.ERROR);
        throw new HiveSQLException(e);
      }
    }
  
    /* (non-Javadoc)
     * @see org.apache.hive.service.cli.Operation#getResultSetSchema()
     */
    @Override
    public TableSchema getResultSetSchema() throws HiveSQLException {
      assertState(OperationState.FINISHED);
      return RESULT_SET_SCHEMA;
    }
  
    /* (non-Javadoc)
     * @see org.apache.hive.service.cli.Operation#getNextRowSet(org.apache.hive.service.cli.FetchOrientation, long)
     */
    @Override
    public RowSet getNextRowSet(FetchOrientation orientation, long maxRows) throws HiveSQLException {
      assertState(OperationState.FINISHED);
      validateDefaultFetchOrientation(orientation);
      if (orientation.equals(FetchOrientation.FETCH_FIRST)) {
        rowSet.setStartOffset(0);
      }
      return rowSet.extractSubset((int)maxRows);
    }
  
  }
  