fe/src/main/java/org/apache/impala/analysis/AlterTableSetFileFormatStmt.java

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package org.apache.impala.analysis;

import org.apache.impala.catalog.FeKuduTable;
import org.apache.impala.catalog.FeTable;
import org.apache.impala.common.AnalysisException;
import org.apache.impala.thrift.TAlterTableParams;
import org.apache.impala.thrift.TAlterTableSetFileFormatParams;
import org.apache.impala.thrift.TAlterTableType;
import org.apache.impala.thrift.THdfsFileFormat;

/**
 * Represents an ALTER TABLE [PARTITION partitionSet] SET FILEFORMAT statement.
 */
public class AlterTableSetFileFormatStmt extends AlterTableSetStmt {
  private final THdfsFileFormat fileFormat_;

  public AlterTableSetFileFormatStmt(TableName tableName,
      PartitionSet partitionSet, THdfsFileFormat fileFormat) {
    super(tableName, partitionSet);
    this.fileFormat_ = fileFormat;
  }

  public THdfsFileFormat getFileFormat() { return fileFormat_; }

  @Override
  public TAlterTableParams toThrift() {
    TAlterTableParams params = super.toThrift();
    params.setAlter_type(TAlterTableType.SET_FILE_FORMAT);
    TAlterTableSetFileFormatParams fileFormatParams =
        new TAlterTableSetFileFormatParams(fileFormat_);
    if (getPartitionSet() != null) {
      fileFormatParams.setPartition_set(getPartitionSet().toThrift());
    }
    params.setSet_file_format_params(fileFormatParams);
    return params;
  }

  @Override
  public void analyze(Analyzer analyzer) throws AnalysisException {
    super.analyze(analyzer);
    FeTable tbl = getTargetTable();
    if (tbl instanceof FeKuduTable) {
      throw new AnalysisException("ALTER TABLE SET FILEFORMAT is not supported " +
          "on Kudu tables: " + tbl.getFullName());
    }
  }
}