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// 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
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package org.apache.impala.analysis;

import com.google.common.base.Preconditions;
import org.apache.impala.authorization.Privilege;
import org.apache.impala.common.AnalysisException;
import org.apache.impala.thrift.TAlterDbParams;

/**
 * Base class for all ALTER DATABASE statements.
 */
public abstract class AlterDbStmt extends StatementBase {
  protected final String dbName_;

  public AlterDbStmt(String dbName) {
    Preconditions.checkNotNull(dbName);
    dbName_ = dbName;
  }

  public TAlterDbParams toThrift() {
    TAlterDbParams params = new TAlterDbParams();
    params.setDb(dbName_);
    return params;
  }

  @Override
  public void analyze(Analyzer analyzer) throws AnalysisException {
    analyzer.getDb(dbName_, Privilege.ALTER);
  }
}