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/*
 * 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.hadoop.hive.ql.parse;

import org.antlr.runtime.tree.Tree;
import org.apache.hadoop.hive.conf.HiveConf;
import org.apache.hadoop.hive.ql.QueryState;
import org.apache.hadoop.hive.ql.plan.HiveOperation;
import io.prestosql.hive.$internal.org.slf4j.Logger;
import io.prestosql.hive.$internal.org.slf4j.LoggerFactory;

import java.util.HashMap;

/**
 * SemanticAnalyzerFactory.
 *
 */
public final class SemanticAnalyzerFactory {
  static final private Logger LOG = LoggerFactory.getLogger(SemanticAnalyzerFactory.class);

  static HashMap commandType = new HashMap();
  static HashMap tablePartitionCommandType = new HashMap();

  static {
    commandType.put(HiveParser.TOK_EXPLAIN, HiveOperation.EXPLAIN);
    commandType.put(HiveParser.TOK_LOAD, HiveOperation.LOAD);
    commandType.put(HiveParser.TOK_EXPORT, HiveOperation.EXPORT);
    commandType.put(HiveParser.TOK_IMPORT, HiveOperation.IMPORT);
    commandType.put(HiveParser.TOK_CREATEDATABASE, HiveOperation.CREATEDATABASE);
    commandType.put(HiveParser.TOK_DROPDATABASE, HiveOperation.DROPDATABASE);
    commandType.put(HiveParser.TOK_SWITCHDATABASE, HiveOperation.SWITCHDATABASE);
    commandType.put(HiveParser.TOK_CREATETABLE, HiveOperation.CREATETABLE);
    commandType.put(HiveParser.TOK_TRUNCATETABLE, HiveOperation.TRUNCATETABLE);
    commandType.put(HiveParser.TOK_DROPTABLE, HiveOperation.DROPTABLE);
    commandType.put(HiveParser.TOK_DESCTABLE, HiveOperation.DESCTABLE);
    commandType.put(HiveParser.TOK_DESCFUNCTION, HiveOperation.DESCFUNCTION);
    commandType.put(HiveParser.TOK_MSCK, HiveOperation.MSCK);
    commandType.put(HiveParser.TOK_ALTERTABLE_ADDCOLS, HiveOperation.ALTERTABLE_ADDCOLS);
    commandType.put(HiveParser.TOK_ALTERTABLE_REPLACECOLS, HiveOperation.ALTERTABLE_REPLACECOLS);
    commandType.put(HiveParser.TOK_ALTERTABLE_RENAMECOL, HiveOperation.ALTERTABLE_RENAMECOL);
    commandType.put(HiveParser.TOK_ALTERTABLE_RENAME, HiveOperation.ALTERTABLE_RENAME);
    commandType.put(HiveParser.TOK_ALTERTABLE_DROPPARTS, HiveOperation.ALTERTABLE_DROPPARTS);
    commandType.put(HiveParser.TOK_ALTERTABLE_ADDPARTS, HiveOperation.ALTERTABLE_ADDPARTS);
    commandType.put(HiveParser.TOK_ALTERTABLE_TOUCH, HiveOperation.ALTERTABLE_TOUCH);
    commandType.put(HiveParser.TOK_ALTERTABLE_ARCHIVE, HiveOperation.ALTERTABLE_ARCHIVE);
    commandType.put(HiveParser.TOK_ALTERTABLE_UNARCHIVE, HiveOperation.ALTERTABLE_UNARCHIVE);
    commandType.put(HiveParser.TOK_ALTERTABLE_PROPERTIES, HiveOperation.ALTERTABLE_PROPERTIES);
    commandType.put(HiveParser.TOK_ALTERTABLE_DROPPROPERTIES, HiveOperation.ALTERTABLE_PROPERTIES);
    commandType.put(HiveParser.TOK_ALTERTABLE_EXCHANGEPARTITION,
        HiveOperation.ALTERTABLE_EXCHANGEPARTITION);
    commandType.put(HiveParser.TOK_ALTERTABLE_DROPCONSTRAINT, HiveOperation.ALTERTABLE_DROPCONSTRAINT);
    commandType.put(HiveParser.TOK_ALTERTABLE_ADDCONSTRAINT, HiveOperation.ALTERTABLE_ADDCONSTRAINT);
    commandType.put(HiveParser.TOK_ALTERTABLE_UPDATECOLUMNS, HiveOperation.ALTERTABLE_UPDATECOLUMNS);
    commandType.put(HiveParser.TOK_SHOWDATABASES, HiveOperation.SHOWDATABASES);
    commandType.put(HiveParser.TOK_SHOWTABLES, HiveOperation.SHOWTABLES);
    commandType.put(HiveParser.TOK_SHOWCOLUMNS, HiveOperation.SHOWCOLUMNS);
    commandType.put(HiveParser.TOK_SHOW_TABLESTATUS, HiveOperation.SHOW_TABLESTATUS);
    commandType.put(HiveParser.TOK_SHOW_TBLPROPERTIES, HiveOperation.SHOW_TBLPROPERTIES);
    commandType.put(HiveParser.TOK_SHOW_CREATEDATABASE, HiveOperation.SHOW_CREATEDATABASE);
    commandType.put(HiveParser.TOK_SHOW_CREATETABLE, HiveOperation.SHOW_CREATETABLE);
    commandType.put(HiveParser.TOK_SHOWFUNCTIONS, HiveOperation.SHOWFUNCTIONS);
    commandType.put(HiveParser.TOK_SHOWPARTITIONS, HiveOperation.SHOWPARTITIONS);
    commandType.put(HiveParser.TOK_SHOWLOCKS, HiveOperation.SHOWLOCKS);
    commandType.put(HiveParser.TOK_SHOWDBLOCKS, HiveOperation.SHOWLOCKS);
    commandType.put(HiveParser.TOK_SHOWCONF, HiveOperation.SHOWCONF);
    commandType.put(HiveParser.TOK_SHOWVIEWS, HiveOperation.SHOWVIEWS);
    commandType.put(HiveParser.TOK_SHOWMATERIALIZEDVIEWS, HiveOperation.SHOWMATERIALIZEDVIEWS);
    commandType.put(HiveParser.TOK_CREATEFUNCTION, HiveOperation.CREATEFUNCTION);
    commandType.put(HiveParser.TOK_DROPFUNCTION, HiveOperation.DROPFUNCTION);
    commandType.put(HiveParser.TOK_RELOADFUNCTION, HiveOperation.RELOADFUNCTION);
    commandType.put(HiveParser.TOK_CREATEMACRO, HiveOperation.CREATEMACRO);
    commandType.put(HiveParser.TOK_DROPMACRO, HiveOperation.DROPMACRO);
    commandType.put(HiveParser.TOK_CREATEVIEW, HiveOperation.CREATEVIEW);
    commandType.put(HiveParser.TOK_CREATE_MATERIALIZED_VIEW, HiveOperation.CREATE_MATERIALIZED_VIEW);
    commandType.put(HiveParser.TOK_DROPVIEW, HiveOperation.DROPVIEW);
    commandType.put(HiveParser.TOK_DROP_MATERIALIZED_VIEW, HiveOperation.DROP_MATERIALIZED_VIEW);
    commandType.put(HiveParser.TOK_ALTERVIEW_PROPERTIES, HiveOperation.ALTERVIEW_PROPERTIES);
    commandType.put(HiveParser.TOK_ALTERVIEW_DROPPROPERTIES, HiveOperation.ALTERVIEW_PROPERTIES);
    commandType.put(HiveParser.TOK_ALTERVIEW_ADDPARTS, HiveOperation.ALTERTABLE_ADDPARTS);
    commandType.put(HiveParser.TOK_ALTERVIEW_DROPPARTS, HiveOperation.ALTERTABLE_DROPPARTS);
    commandType.put(HiveParser.TOK_ALTERTABLE_OWNER, HiveOperation.ALTERTABLE_OWNER);
    commandType.put(HiveParser.TOK_ALTERVIEW_RENAME, HiveOperation.ALTERVIEW_RENAME);
    commandType.put(HiveParser.TOK_ALTERVIEW, HiveOperation.ALTERVIEW_AS);
    commandType.put(HiveParser.TOK_ALTER_MATERIALIZED_VIEW_REWRITE,
        HiveOperation.ALTER_MATERIALIZED_VIEW_REWRITE);
    commandType.put(HiveParser.TOK_QUERY, HiveOperation.QUERY);
    commandType.put(HiveParser.TOK_LOCKTABLE, HiveOperation.LOCKTABLE);
    commandType.put(HiveParser.TOK_UNLOCKTABLE, HiveOperation.UNLOCKTABLE);
    commandType.put(HiveParser.TOK_LOCKDB, HiveOperation.LOCKDB);
    commandType.put(HiveParser.TOK_UNLOCKDB, HiveOperation.UNLOCKDB);
    commandType.put(HiveParser.TOK_CREATEROLE, HiveOperation.CREATEROLE);
    commandType.put(HiveParser.TOK_DROPROLE, HiveOperation.DROPROLE);
    commandType.put(HiveParser.TOK_GRANT, HiveOperation.GRANT_PRIVILEGE);
    commandType.put(HiveParser.TOK_REVOKE, HiveOperation.REVOKE_PRIVILEGE);
    commandType.put(HiveParser.TOK_SHOW_GRANT, HiveOperation.SHOW_GRANT);
    commandType.put(HiveParser.TOK_GRANT_ROLE, HiveOperation.GRANT_ROLE);
    commandType.put(HiveParser.TOK_REVOKE_ROLE, HiveOperation.REVOKE_ROLE);
    commandType.put(HiveParser.TOK_SHOW_ROLES, HiveOperation.SHOW_ROLES);
    commandType.put(HiveParser.TOK_SHOW_SET_ROLE, HiveOperation.SHOW_ROLES);
    commandType.put(HiveParser.TOK_SHOW_ROLE_PRINCIPALS, HiveOperation.SHOW_ROLE_PRINCIPALS);
    commandType.put(HiveParser.TOK_SHOW_ROLE_GRANT, HiveOperation.SHOW_ROLE_GRANT);
    commandType.put(HiveParser.TOK_ALTERDATABASE_PROPERTIES, HiveOperation.ALTERDATABASE);
    commandType.put(HiveParser.TOK_ALTERDATABASE_OWNER, HiveOperation.ALTERDATABASE_OWNER);
    commandType.put(HiveParser.TOK_ALTERDATABASE_LOCATION, HiveOperation.ALTERDATABASE_LOCATION);
    commandType.put(HiveParser.TOK_DESCDATABASE, HiveOperation.DESCDATABASE);
    commandType.put(HiveParser.TOK_ALTERTABLE_SKEWED, HiveOperation.ALTERTABLE_SKEWED);
    commandType.put(HiveParser.TOK_ANALYZE, HiveOperation.ANALYZE_TABLE);
    commandType.put(HiveParser.TOK_CACHE_METADATA, HiveOperation.CACHE_METADATA);
    commandType.put(HiveParser.TOK_ALTERTABLE_PARTCOLTYPE, HiveOperation.ALTERTABLE_PARTCOLTYPE);
    commandType.put(HiveParser.TOK_SHOW_COMPACTIONS, HiveOperation.SHOW_COMPACTIONS);
    commandType.put(HiveParser.TOK_SHOW_TRANSACTIONS, HiveOperation.SHOW_TRANSACTIONS);
    commandType.put(HiveParser.TOK_ABORT_TRANSACTIONS, HiveOperation.ABORT_TRANSACTIONS);
    commandType.put(HiveParser.TOK_START_TRANSACTION, HiveOperation.START_TRANSACTION);
    commandType.put(HiveParser.TOK_COMMIT, HiveOperation.COMMIT);
    commandType.put(HiveParser.TOK_ROLLBACK, HiveOperation.ROLLBACK);
    commandType.put(HiveParser.TOK_SET_AUTOCOMMIT, HiveOperation.SET_AUTOCOMMIT);
    commandType.put(HiveParser.TOK_REPL_DUMP, HiveOperation.REPLDUMP);
    commandType.put(HiveParser.TOK_REPL_LOAD, HiveOperation.REPLLOAD);
    commandType.put(HiveParser.TOK_REPL_STATUS, HiveOperation.REPLSTATUS);
    commandType.put(HiveParser.TOK_KILL_QUERY, HiveOperation.KILL_QUERY);
    commandType.put(HiveParser.TOK_CREATE_RP, HiveOperation.CREATE_RESOURCEPLAN);
    commandType.put(HiveParser.TOK_SHOW_RP, HiveOperation.SHOW_RESOURCEPLAN);
    commandType.put(HiveParser.TOK_ALTER_RP, HiveOperation.ALTER_RESOURCEPLAN);
    commandType.put(HiveParser.TOK_DROP_RP, HiveOperation.DROP_RESOURCEPLAN);
    commandType.put(HiveParser.TOK_CREATE_TRIGGER, HiveOperation.CREATE_TRIGGER);
    commandType.put(HiveParser.TOK_ALTER_TRIGGER, HiveOperation.ALTER_TRIGGER);
    commandType.put(HiveParser.TOK_DROP_TRIGGER, HiveOperation.DROP_TRIGGER);
    commandType.put(HiveParser.TOK_CREATE_POOL, HiveOperation.CREATE_POOL);
    commandType.put(HiveParser.TOK_ALTER_POOL, HiveOperation.ALTER_POOL);
    commandType.put(HiveParser.TOK_DROP_POOL, HiveOperation.DROP_POOL);
    commandType.put(HiveParser.TOK_CREATE_MAPPING, HiveOperation.CREATE_MAPPING);
    commandType.put(HiveParser.TOK_ALTER_MAPPING, HiveOperation.ALTER_MAPPING);
    commandType.put(HiveParser.TOK_DROP_MAPPING, HiveOperation.DROP_MAPPING);
  }

  static {
    tablePartitionCommandType.put(HiveParser.TOK_ALTERTABLE_FILEFORMAT,
        new HiveOperation[] { HiveOperation.ALTERTABLE_FILEFORMAT,
            HiveOperation.ALTERPARTITION_FILEFORMAT });
    tablePartitionCommandType.put(HiveParser.TOK_ALTERTABLE_LOCATION,
        new HiveOperation[] { HiveOperation.ALTERTABLE_LOCATION,
            HiveOperation.ALTERPARTITION_LOCATION });
    tablePartitionCommandType.put(HiveParser.TOK_ALTERTABLE_MERGEFILES,
        new HiveOperation[] {HiveOperation.ALTERTABLE_MERGEFILES,
            HiveOperation.ALTERPARTITION_MERGEFILES });
    tablePartitionCommandType.put(HiveParser.TOK_ALTERTABLE_SERIALIZER,
        new HiveOperation[] {HiveOperation.ALTERTABLE_SERIALIZER,
            HiveOperation.ALTERPARTITION_SERIALIZER });
    tablePartitionCommandType.put(HiveParser.TOK_ALTERTABLE_SERDEPROPERTIES,
        new HiveOperation[] {HiveOperation.ALTERTABLE_SERDEPROPERTIES,
            HiveOperation.ALTERPARTITION_SERDEPROPERTIES });
    tablePartitionCommandType.put(HiveParser.TOK_ALTERTABLE_RENAMEPART,
        new HiveOperation[] {null, HiveOperation.ALTERTABLE_RENAMEPART});
    tablePartitionCommandType.put(HiveParser.TOK_ALTERTABLE_COMPACT,
        new HiveOperation[] {HiveOperation.ALTERTABLE_COMPACT, HiveOperation.ALTERTABLE_COMPACT});
    tablePartitionCommandType.put(HiveParser.TOK_ALTERTABLE_SKEWED_LOCATION,
        new HiveOperation[] {HiveOperation.ALTERTBLPART_SKEWED_LOCATION,
            HiveOperation.ALTERTBLPART_SKEWED_LOCATION });
    tablePartitionCommandType.put(HiveParser.TOK_ALTERTABLE_BUCKETS,
        new HiveOperation[] {HiveOperation.ALTERTABLE_BUCKETNUM,
            HiveOperation.ALTERPARTITION_BUCKETNUM});
    tablePartitionCommandType.put(HiveParser.TOK_ALTERTABLE_CLUSTER_SORT,
        new HiveOperation[] {HiveOperation.ALTERTABLE_CLUSTER_SORT,
            HiveOperation.ALTERTABLE_CLUSTER_SORT});
    tablePartitionCommandType.put(HiveParser.TOK_ALTERTABLE_UPDATECOLSTATS,
        new HiveOperation[] {HiveOperation.ALTERTABLE_UPDATETABLESTATS,
            HiveOperation.ALTERTABLE_UPDATEPARTSTATS});
    tablePartitionCommandType.put(HiveParser.TOK_ALTERTABLE_UPDATESTATS,
        new HiveOperation[] {HiveOperation.ALTERTABLE_UPDATETABLESTATS,
        HiveOperation.ALTERTABLE_UPDATEPARTSTATS});
  }

  
  public static BaseSemanticAnalyzer get(QueryState queryState, ASTNode tree) throws SemanticException {
    BaseSemanticAnalyzer sem = getInternal(queryState, tree);
    if(queryState.getHiveOperation() == null) {
      String query = queryState.getQueryString();
      if(query != null && query.length() > 30) {
        query = query.substring(0, 30);
      }
      String msg = "Unknown HiveOperation for query='" + query + "' queryId=" + queryState.getQueryId();
      //throw new IllegalStateException(msg);
      LOG.debug(msg);
    }
    return sem;
  }
  
  private static BaseSemanticAnalyzer getInternal(QueryState queryState, ASTNode tree)
      throws SemanticException {
    if (tree.getToken() == null) {
      throw new RuntimeException("Empty Syntax Tree");
    } else {
      HiveOperation opType = commandType.get(tree.getType());
      queryState.setCommandType(opType);
      switch (tree.getType()) {
      case HiveParser.TOK_EXPLAIN:
        return new ExplainSemanticAnalyzer(queryState);
      case HiveParser.TOK_EXPLAIN_SQ_REWRITE:
        return new ExplainSQRewriteSemanticAnalyzer(queryState);
      case HiveParser.TOK_LOAD:
        return new LoadSemanticAnalyzer(queryState);
      case HiveParser.TOK_EXPORT:
        if (UpdateDeleteSemanticAnalyzer.isAcidExport(tree)) {
          return new UpdateDeleteSemanticAnalyzer(queryState);
        }
        return new ExportSemanticAnalyzer(queryState);
      case HiveParser.TOK_IMPORT:
        return new ImportSemanticAnalyzer(queryState);
      case HiveParser.TOK_REPL_DUMP:
        return new ReplicationSemanticAnalyzer(queryState);
      case HiveParser.TOK_REPL_LOAD:
        return new ReplicationSemanticAnalyzer(queryState);
      case HiveParser.TOK_REPL_STATUS:
        return new ReplicationSemanticAnalyzer(queryState);
      case HiveParser.TOK_ALTERTABLE: {
        Tree child = tree.getChild(1);
        switch (child.getType()) {
          case HiveParser.TOK_ALTERTABLE_RENAME:
          case HiveParser.TOK_ALTERTABLE_TOUCH:
          case HiveParser.TOK_ALTERTABLE_ARCHIVE:
          case HiveParser.TOK_ALTERTABLE_UNARCHIVE:
          case HiveParser.TOK_ALTERTABLE_ADDCOLS:
          case HiveParser.TOK_ALTERTABLE_RENAMECOL:
          case HiveParser.TOK_ALTERTABLE_REPLACECOLS:
          case HiveParser.TOK_ALTERTABLE_DROPPARTS:
          case HiveParser.TOK_ALTERTABLE_ADDPARTS:
          case HiveParser.TOK_ALTERTABLE_PARTCOLTYPE:
          case HiveParser.TOK_ALTERTABLE_PROPERTIES:
          case HiveParser.TOK_ALTERTABLE_DROPPROPERTIES:
          case HiveParser.TOK_ALTERTABLE_EXCHANGEPARTITION:
          case HiveParser.TOK_ALTERTABLE_SKEWED:
          case HiveParser.TOK_ALTERTABLE_OWNER:
          case HiveParser.TOK_ALTERTABLE_DROPCONSTRAINT:
          case HiveParser.TOK_ALTERTABLE_ADDCONSTRAINT:
          case HiveParser.TOK_ALTERTABLE_UPDATECOLUMNS:
          queryState.setCommandType(commandType.get(child.getType()));
          return new DDLSemanticAnalyzer(queryState);
        }
        opType =
            tablePartitionCommandType.get(child.getType())[tree.getChildCount() > 2 ? 1 : 0];
        queryState.setCommandType(opType);
        return new DDLSemanticAnalyzer(queryState);
      }
      case HiveParser.TOK_ALTERVIEW: {
        Tree child = tree.getChild(1);
        switch (child.getType()) {
          case HiveParser.TOK_ALTERVIEW_PROPERTIES:
          case HiveParser.TOK_ALTERVIEW_DROPPROPERTIES:
          case HiveParser.TOK_ALTERVIEW_ADDPARTS:
          case HiveParser.TOK_ALTERVIEW_DROPPARTS:
          case HiveParser.TOK_ALTERVIEW_RENAME:
            opType = commandType.get(child.getType());
            queryState.setCommandType(opType);
            return new DDLSemanticAnalyzer(queryState);
        }
        // TOK_ALTERVIEW_AS
        assert child.getType() == HiveParser.TOK_QUERY;
        queryState.setCommandType(HiveOperation.ALTERVIEW_AS);
        return new SemanticAnalyzer(queryState);
      }
      case HiveParser.TOK_ALTER_MATERIALIZED_VIEW: {
        Tree child = tree.getChild(1);
        switch (child.getType()) {
          case HiveParser.TOK_ALTER_MATERIALIZED_VIEW_REWRITE:
            opType = commandType.get(child.getType());
            queryState.setCommandType(opType);
            return new DDLSemanticAnalyzer(queryState);
          case HiveParser.TOK_ALTER_MATERIALIZED_VIEW_REBUILD:
            opType = commandType.get(child.getType());
            queryState.setCommandType(opType);
            return new MaterializedViewRebuildSemanticAnalyzer(queryState);
        }
        // Operation not recognized, set to null and let upper level handle this case
        queryState.setCommandType(null);
        return new DDLSemanticAnalyzer(queryState);
      }
      case HiveParser.TOK_CREATEDATABASE:
      case HiveParser.TOK_DROPDATABASE:
      case HiveParser.TOK_SWITCHDATABASE:
      case HiveParser.TOK_DROPTABLE:
      case HiveParser.TOK_DROPVIEW:
      case HiveParser.TOK_DROP_MATERIALIZED_VIEW:
      case HiveParser.TOK_DESCDATABASE:
      case HiveParser.TOK_DESCTABLE:
      case HiveParser.TOK_DESCFUNCTION:
      case HiveParser.TOK_MSCK:
      case HiveParser.TOK_SHOWDATABASES:
      case HiveParser.TOK_SHOWTABLES:
      case HiveParser.TOK_SHOWCOLUMNS:
      case HiveParser.TOK_SHOW_TABLESTATUS:
      case HiveParser.TOK_SHOW_TBLPROPERTIES:
      case HiveParser.TOK_SHOW_CREATEDATABASE:
      case HiveParser.TOK_SHOW_CREATETABLE:
      case HiveParser.TOK_SHOWFUNCTIONS:
      case HiveParser.TOK_SHOWPARTITIONS:
      case HiveParser.TOK_SHOWLOCKS:
      case HiveParser.TOK_SHOWDBLOCKS:
      case HiveParser.TOK_SHOW_COMPACTIONS:
      case HiveParser.TOK_SHOW_TRANSACTIONS:
      case HiveParser.TOK_ABORT_TRANSACTIONS:
      case HiveParser.TOK_SHOWCONF:
      case HiveParser.TOK_SHOWVIEWS:
      case HiveParser.TOK_SHOWMATERIALIZEDVIEWS:
      case HiveParser.TOK_ALTERTABLE_CLUSTER_SORT:
      case HiveParser.TOK_LOCKTABLE:
      case HiveParser.TOK_UNLOCKTABLE:
      case HiveParser.TOK_LOCKDB:
      case HiveParser.TOK_UNLOCKDB:
      case HiveParser.TOK_CREATEROLE:
      case HiveParser.TOK_DROPROLE:
      case HiveParser.TOK_GRANT:
      case HiveParser.TOK_REVOKE:
      case HiveParser.TOK_SHOW_GRANT:
      case HiveParser.TOK_GRANT_ROLE:
      case HiveParser.TOK_REVOKE_ROLE:
      case HiveParser.TOK_SHOW_ROLE_GRANT:
      case HiveParser.TOK_SHOW_ROLE_PRINCIPALS:
      case HiveParser.TOK_SHOW_ROLES:
      case HiveParser.TOK_ALTERDATABASE_PROPERTIES:
      case HiveParser.TOK_ALTERDATABASE_OWNER:
      case HiveParser.TOK_ALTERDATABASE_LOCATION:
      case HiveParser.TOK_TRUNCATETABLE:
      case HiveParser.TOK_SHOW_SET_ROLE:
      case HiveParser.TOK_CACHE_METADATA:
      case HiveParser.TOK_KILL_QUERY:
      case HiveParser.TOK_CREATE_RP:
      case HiveParser.TOK_SHOW_RP:
      case HiveParser.TOK_ALTER_RP:
      case HiveParser.TOK_DROP_RP:
      case HiveParser.TOK_CREATE_TRIGGER:
      case HiveParser.TOK_ALTER_TRIGGER:
      case HiveParser.TOK_DROP_TRIGGER:
      case HiveParser.TOK_CREATE_POOL:
      case HiveParser.TOK_ALTER_POOL:
      case HiveParser.TOK_DROP_POOL:
      case HiveParser.TOK_CREATE_MAPPING:
      case HiveParser.TOK_ALTER_MAPPING:
      case HiveParser.TOK_DROP_MAPPING:
        return new DDLSemanticAnalyzer(queryState);

      case HiveParser.TOK_CREATEFUNCTION:
      case HiveParser.TOK_DROPFUNCTION:
      case HiveParser.TOK_RELOADFUNCTION:
        return new FunctionSemanticAnalyzer(queryState);

      case HiveParser.TOK_ANALYZE:
        return new ColumnStatsSemanticAnalyzer(queryState);

      case HiveParser.TOK_CREATEMACRO:
      case HiveParser.TOK_DROPMACRO:
        return new MacroSemanticAnalyzer(queryState);

      case HiveParser.TOK_UPDATE_TABLE:
      case HiveParser.TOK_DELETE_FROM:
      case HiveParser.TOK_MERGE:
        return new UpdateDeleteSemanticAnalyzer(queryState);

      case HiveParser.TOK_START_TRANSACTION:
      case HiveParser.TOK_COMMIT:
      case HiveParser.TOK_ROLLBACK:
      case HiveParser.TOK_SET_AUTOCOMMIT:
      default: {
        SemanticAnalyzer semAnalyzer = HiveConf
            .getBoolVar(queryState.getConf(), HiveConf.ConfVars.HIVE_CBO_ENABLED) ?
                new CalcitePlanner(queryState) : new SemanticAnalyzer(queryState);
        return semAnalyzer;
      }
      }
    }
  }

  private SemanticAnalyzerFactory() {
    // prevent instantiation
  }
  static HiveOperation getOperation(int hiveParserToken) {
    return commandType.get(hiveParserToken);
  }
}