| // 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.impala.analysis; |
| |
| import org.apache.impala.catalog.FeFsPartition; |
| import org.apache.impala.catalog.FeFsTable; |
| import org.apache.impala.catalog.FeTable; |
| import org.apache.impala.catalog.HdfsFileFormat; |
| import org.apache.impala.catalog.RowFormat; |
| import org.apache.impala.common.AnalysisException; |
| import org.apache.impala.thrift.TAlterTableParams; |
| import org.apache.impala.thrift.TAlterTableSetRowFormatParams; |
| import org.apache.impala.thrift.TAlterTableType; |
| |
| /** |
| * Represents an ALTER TABLE [PARTITION partitionSet] SET ROW FORMAT statement. |
| */ |
| public class AlterTableSetRowFormatStmt extends AlterTableSetStmt { |
| private final RowFormat rowFormat_; |
| |
| public AlterTableSetRowFormatStmt(TableName tableName, |
| PartitionSet partitionSet, RowFormat rowFormat) { |
| super(tableName, partitionSet); |
| rowFormat_ = rowFormat; |
| } |
| |
| public RowFormat getRowFormat() { return rowFormat_; } |
| |
| @Override |
| public TAlterTableParams toThrift() { |
| TAlterTableParams params = super.toThrift(); |
| params.setAlter_type(TAlterTableType.SET_ROW_FORMAT); |
| TAlterTableSetRowFormatParams rowFormatParams = |
| new TAlterTableSetRowFormatParams(getRowFormat().toThrift()); |
| if (getPartitionSet() != null) { |
| rowFormatParams.setPartition_set(getPartitionSet().toThrift()); |
| } |
| params.setSet_row_format_params(rowFormatParams); |
| return params; |
| } |
| |
| @Override |
| public void analyze(Analyzer analyzer) throws AnalysisException { |
| super.analyze(analyzer); |
| FeTable tbl = getTargetTable(); |
| if (!(tbl instanceof FeFsTable)) { |
| throw new AnalysisException(String.format("ALTER TABLE SET ROW FORMAT is only " + |
| "supported on HDFS tables. Conflicting table: %1$s", tbl.getFullName())); |
| } |
| if (partitionSet_ != null) { |
| for (FeFsPartition partition: partitionSet_.getPartitions()) { |
| if (partition.getFileFormat() != HdfsFileFormat.TEXT && |
| partition.getFileFormat() != HdfsFileFormat.SEQUENCE_FILE) { |
| throw new AnalysisException(String.format("ALTER TABLE SET ROW FORMAT is " + |
| "only supported on TEXT or SEQUENCE file formats. " + |
| "Conflicting partition/format: %1$s / %2$s", partition.getPartitionName(), |
| HdfsFileFormat.fromHdfsInputFormatClass( |
| partition.getFileFormat().inputFormat()).name())); |
| } |
| } |
| } else { |
| HdfsFileFormat format = HdfsFileFormat.fromHdfsInputFormatClass( |
| ((FeFsTable) tbl).getMetaStoreTable().getSd().getInputFormat()); |
| if (format != HdfsFileFormat.TEXT && |
| format != HdfsFileFormat.SEQUENCE_FILE) { |
| throw new AnalysisException(String.format("ALTER TABLE SET ROW FORMAT is " + |
| "only supported on TEXT or SEQUENCE file formats. Conflicting " + |
| "table/format: %1$s / %2$s", tbl.getFullName(), format.name())); |
| } |
| } |
| } |
| } |