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https://issues.apache.org/jira/browse/DRILL-7177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16955566#comment-16955566
]
ASF GitHub Bot commented on DRILL-7177:
---------------------------------------
paul-rogers commented on pull request #1749: DRILL-7177: Format Plugin for
Excel Files
URL: https://github.com/apache/drill/pull/1749#discussion_r336788795
##########
File path:
contrib/format-excel/src/main/java/org/apache/drill/exec/store/excel/ExcelBatchReader.java
##########
@@ -0,0 +1,398 @@
+/*
+ * 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.drill.exec.store.excel;
+
+import org.apache.drill.common.exceptions.UserException;
+import org.apache.drill.common.types.TypeProtos;
+import org.apache.drill.exec.physical.impl.scan.file.FileScanFramework;
+import org.apache.drill.exec.physical.impl.scan.framework.ManagedReader;
+import org.apache.drill.exec.physical.resultSet.ResultSetLoader;
+import org.apache.drill.exec.physical.resultSet.RowSetLoader;
+import org.apache.drill.exec.record.metadata.ColumnMetadata;
+import org.apache.drill.exec.record.metadata.MetadataUtils;
+import org.apache.drill.exec.record.metadata.SchemaBuilder;
+import org.apache.drill.exec.record.metadata.TupleMetadata;
+import org.apache.drill.exec.vector.accessor.ScalarWriter;
+import org.apache.drill.exec.vector.accessor.TupleWriter;
+import org.apache.hadoop.fs.FSDataInputStream;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.mapred.FileSplit;
+
+import org.apache.poi.ss.usermodel.Cell;
+import org.apache.poi.ss.usermodel.CellValue;
+import org.apache.poi.ss.usermodel.DateUtil;
+import org.apache.poi.ss.usermodel.FormulaEvaluator;
+import org.apache.poi.ss.usermodel.Row;
+import org.apache.poi.xssf.usermodel.XSSFSheet;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
+import
org.apache.drill.exec.physical.impl.scan.file.FileScanFramework.FileSchemaNegotiator;
+import org.joda.time.Instant;
+
+import java.util.Iterator;
+import java.io.IOException;
+import java.util.ArrayList;
+
+public class ExcelBatchReader implements ManagedReader<FileSchemaNegotiator> {
+ private ExcelReaderConfig readerConfig;
+
+ private static final org.slf4j.Logger logger =
org.slf4j.LoggerFactory.getLogger(ExcelBatchReader.class);
+
+ private XSSFWorkbook workbook;
+
+ private FSDataInputStream fsStream;
+
+ private static final String SAFE_WILDCARD = "_$";
+
+ private static final String SAFE_SEPARATOR = "_";
+
+ private static final String PARSER_WILDCARD = ".*";
+
+ private static final String MISSING_FIELD_NAME_HEADER = "field_";
+
+ private static final String SAFE_NEWLINE_REPLACEMENT = " ";
+
+ private XSSFSheet sheet;
+
+ private FormulaEvaluator evaluator;
+
+ private ArrayList<String> excelFieldNames;
+
+ private Iterator<Row> rowIterator;
+
+ private int totalColumnCount;
+
+ private int lineCount;
+
+ private FileSplit split;
+
+ private ResultSetLoader loader;
+
+ private int recordCount;
+
+ public static class ExcelReaderConfig {
+ protected final ExcelFormatPlugin plugin;
+
+ protected int headerRow;
+
+ protected int lastRow;
+
+ protected int firstColumn;
+
+ protected int lastColumn;
+
+ protected boolean readAllFieldsAsVarChar;
+
+ protected boolean evaluateFormulae;
+
+ protected TupleMetadata schema;
+
+ protected String sheetName;
+
+ public ExcelReaderConfig(ExcelFormatPlugin plugin, int headerRow, int
lastRow, int firstColumn, int lastColumn, boolean readAllFieldsAsVarChar,
boolean evaluateFormulae,
+ //TupleMetadata schema,
+ String sheetName) {
+ this.plugin = plugin;
+ this.headerRow = headerRow;
+ this.lastRow = lastRow;
+ this.firstColumn = firstColumn;
+ this.lastColumn = lastColumn;
+ this.readAllFieldsAsVarChar = readAllFieldsAsVarChar;
+ this.evaluateFormulae = evaluateFormulae;
+ this.sheetName = sheetName;
+
+ }
+ }
+
+ public ExcelBatchReader(ExcelReaderConfig readerConfig) {
+ this.readerConfig = readerConfig;
+ }
+
+ @Override
+ public boolean open(FileSchemaNegotiator negotiator) {
+ verifyConfigOptions();
Review comment:
When building the framework. I added a comment at a likely spot.
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> Format Plugin for Excel Files
> -----------------------------
>
> Key: DRILL-7177
> URL: https://issues.apache.org/jira/browse/DRILL-7177
> Project: Apache Drill
> Issue Type: Improvement
> Affects Versions: 1.17.0
> Reporter: Charles Givre
> Assignee: Charles Givre
> Priority: Major
> Labels: doc-impacting
> Fix For: 1.17.0
>
>
> This pull request adds the functionality which enables Drill to query
> Microsoft Excel files.
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