Another fix inspired by bug #48494 - have ExcelExtractor make use of HSSFDataFormatter, so that numbers and dates come out closer to how Excel would render them

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@950657 13f79535-47bb-0310-9956-ffa450edef68

src/documentation/content/xdocs/status.xml

@@ -34,6 +34,7 @@
 
     <changes>
         <release version="3.7-SNAPSHOT" date="2010-??-??">
+           <action dev="POI-DEVELOPERS" type="fix">48494 - have ExcelExtractor make use of HSSFDataFormatter, so that numbers and dates come out closer to how Excel would render them</action>
            <action dev="POI-DEVELOPERS" type="fix">48494 - have EventBasedExcelExtractor make use of HSSFDataFormatter, so that numbers and dates come out closer to how Excel would render them</action>
            <action dev="POI-DEVELOPERS" type="fix">49096 - add clone support to Chart begin and end records, to allow cloning of more Chart containing sheets</action>
            <action dev="POI-DEVELOPERS" type="add">List attachment names in the output of OutlookTextExtractor (to get attachment contents, use ExtractorFactory as normal)</action>

src/java/org/apache/poi/hssf/extractor/ExcelExtractor.java

@@ -26,7 +26,9 @@ import java.io.PrintStream;
 import org.apache.poi.POIOLE2TextExtractor;
 import org.apache.poi.hssf.record.formula.eval.ErrorEval;
 import org.apache.poi.hssf.usermodel.HSSFCell;
+import org.apache.poi.hssf.usermodel.HSSFCellStyle;
 import org.apache.poi.hssf.usermodel.HSSFComment;
+import org.apache.poi.hssf.usermodel.HSSFDataFormatter;
 import org.apache.poi.hssf.usermodel.HSSFRichTextString;
 import org.apache.poi.hssf.usermodel.HSSFRow;
 import org.apache.poi.hssf.usermodel.HSSFSheet;
@@ -51,6 +53,7 @@ import org.apache.poi.ss.usermodel.HeaderFooter;
  */
 public class ExcelExtractor extends POIOLE2TextExtractor implements org.apache.poi.ss.extractor.ExcelExtractor {
 	private HSSFWorkbook _wb;
+	private HSSFDataFormatter _formatter;
 	private boolean _includeSheetNames = true;
 	private boolean _shouldEvaluateFormulas = true;
 	private boolean _includeCellComments = false;
@@ -60,6 +63,7 @@ public class ExcelExtractor extends POIOLE2TextExtractor implements org.apache.p
 	public ExcelExtractor(HSSFWorkbook wb) {
 		super(wb);
 		_wb = wb;
+		_formatter = new HSSFDataFormatter();
 	}
 	public ExcelExtractor(POIFSFileSystem fs) throws IOException {
 		this(fs.getRoot(), fs);
@@ -323,8 +327,9 @@ public class ExcelExtractor extends POIOLE2TextExtractor implements org.apache.p
 								text.append(cell.getRichStringCellValue().getString());
 								break;
 							case HSSFCell.CELL_TYPE_NUMERIC:
-								// Note - we don't apply any formatting!
+								text.append(
-								text.append(cell.getNumericCellValue());
+								      _formatter.formatCellValue(cell)
+								);
 								break;
 							case HSSFCell.CELL_TYPE_BOOLEAN:
 								text.append(cell.getBooleanCellValue());
@@ -344,7 +349,18 @@ public class ExcelExtractor extends POIOLE2TextExtractor implements org.apache.p
 											}
 											break;
 										case HSSFCell.CELL_TYPE_NUMERIC:
-											text.append(cell.getNumericCellValue());
+										   HSSFCellStyle style = cell.getCellStyle();
+										   if(style == null) {
+										      text.append( cell.getNumericCellValue() );
+										   } else {
+	                                 text.append(
+	                                       _formatter.formatRawCellContents(
+	                                             cell.getNumericCellValue(),
+	                                             style.getDataFormat(),
+	                                             style.getDataFormatString()
+	                                       )
+	                                 );
+										   }
 											break;
 										case HSSFCell.CELL_TYPE_BOOLEAN:
 											text.append(cell.getBooleanCellValue());

src/testcases/org/apache/poi/hssf/extractor/TestExcelExtractor.java

@@ -63,11 +63,11 @@ public final class TestExcelExtractor extends TestCase {
 
 		assertEquals(
 				"Sheet1\n" +
-				"1000.0\t1.0\t5.0\n" +
+				"1000\t1\t5\n" +
-				"2000.0\t2.0\n" +
+				"2000\t2\n" +
-				"3000.0\t3.0\n" +
+				"3000\t3\n" +
-				"4000.0\t4.0\n" +
+				"4000\t4\n" +
-				"5000.0\t5.0\n" +
+				"5000\t5\n" +
 				"Sheet2\nSheet3\n",
 				extractor.getText()
 		);
@@ -76,11 +76,11 @@ public final class TestExcelExtractor extends TestCase {
 
 		assertEquals(
 				"Sheet1\n" +
-				"1000.0\t1.0\tSUMIF(A1:A5,\">4000\",B1:B5)\n" +
+				"1000\t1\tSUMIF(A1:A5,\">4000\",B1:B5)\n" +
-				"2000.0\t2.0\n" +
+				"2000\t2\n" +
-				"3000.0\t3.0\n" +
+				"3000\t3\n" +
-				"4000.0\t4.0\n" +
+				"4000\t4\n" +
-				"5000.0\t5.0\n" +
+				"5000\t5\n" +
 				"Sheet2\nSheet3\n",
 				extractor.getText()
 		);
@@ -173,18 +173,18 @@ public final class TestExcelExtractor extends TestCase {
 
 		// Check without comments
 		assertEquals(
-				"1.0\tone\n" +
+				"1\tone\n" +
-				"2.0\ttwo\n" +
+				"2\ttwo\n" +
-				"3.0\tthree\n",
+				"3\tthree\n",
 				extractor.getText()
 		);
 
 		// Now with
 		extractor.setIncludeCellComments(true);
 		assertEquals(
-				"1.0\tone Comment by Yegor Kozlov: Yegor Kozlov: first cell\n" +
+				"1\tone Comment by Yegor Kozlov: Yegor Kozlov: first cell\n" +
-				"2.0\ttwo Comment by Yegor Kozlov: Yegor Kozlov: second cell\n" +
+				"2\ttwo Comment by Yegor Kozlov: Yegor Kozlov: second cell\n" +
-				"3.0\tthree Comment by Yegor Kozlov: Yegor Kozlov: third cell\n",
+				"3\tthree Comment by Yegor Kozlov: Yegor Kozlov: third cell\n",
 				extractor.getText()
 		);
 	}
@@ -199,20 +199,65 @@ public final class TestExcelExtractor extends TestCase {
 				"Sheet1\n" +
 				"&[TAB]\t\n" +
 				"Hello\n" +
-				"11.0\t23.0\n"
+				"11\t23\n"
 		));
 
 		assertTrue(padded.startsWith(
 				"Sheet1\n" +
 				"&[TAB]\t\n" +
 				"Hello\n" +
-				"11.0\t\t\t23.0\n"
+				"11\t\t\t23\n"
 		));
 	}
 
+	public void testFormatting() throws Exception {
+      ExcelExtractor extractor = createExtractor("Formatting.xls");
+      extractor.setIncludeBlankCells(false);
+      extractor.setIncludeSheetNames(false);
+      String text = extractor.getText();
+      
+      // Note - not all the formats in the file
+      //  actually quite match what they claim to
+      //  be, as some are auto-local builtins...
+      
+      assertTrue(text.startsWith(
+            "Dates, all 24th November 2006\n"
+      ));
+      assertTrue(
+            text.indexOf(
+               "yyyy/mm/dd\t2006/11/24\n"
+            ) > -1
+      );
+      assertTrue(
+            text.indexOf(
+               "yyyy-mm-dd\t2006-11-24\n"
+            ) > -1
+      );
+      assertTrue(
+            text.indexOf(
+               "dd-mm-yy\t24-11-06\n"
+            ) > -1
+      );
+      
+      assertTrue(
+            text.indexOf(
+               "nn.nn\t10.52\n"
+            ) > -1
+      );
+      assertTrue(
+            text.indexOf(
+               "nn.nnn\t10.520\n"
+            ) > -1
+      );
+      assertTrue(
+            text.indexOf(
+               "£nn.nn\t£10.52\n"
+            ) > -1
+      );
+	}
 
 	/**
-	 * Embded in a non-excel file
+	 * Embeded in a non-excel file
 	 */
 	public void testWithEmbeded() throws Exception {
 		POIFSFileSystem fs = new POIFSFileSystem(

src/testcases/org/apache/poi/hssf/usermodel/TestHSSFDataFormatter.java

@@ -310,6 +310,63 @@ public final class TestHSSFDataFormatter extends TestCase {
 		assertEquals("2345", f.formatCellValue(cellA1));
 	}
 	
+	/**
+	 * Tests various formattings of dates and numbers
+	 */
+	public void testFromFile() {
+      HSSFWorkbook workbook = HSSFTestDataSamples.openSampleWorkbook("Formatting.xls");
+      HSSFSheet sheet = workbook.getSheetAt(0);
+	   
+      HSSFDataFormatter f = new HSSFDataFormatter();
+
+      // This one is one of the nasty auto-locale changing ones...
+      assertEquals("dd/mm/yyyy", sheet.getRow(1).getCell(0).getStringCellValue());
+      assertEquals("m/d/yy",     sheet.getRow(1).getCell(1).getCellStyle().getDataFormatString());
+      assertEquals("11/24/06",   f.formatCellValue(sheet.getRow(1).getCell(1)));
+      
+      assertEquals("yyyy/mm/dd", sheet.getRow(2).getCell(0).getStringCellValue());
+      assertEquals("yyyy/mm/dd", sheet.getRow(2).getCell(1).getCellStyle().getDataFormatString());
+      assertEquals("2006/11/24", f.formatCellValue(sheet.getRow(2).getCell(1)));
+      
+      assertEquals("yyyy-mm-dd", sheet.getRow(3).getCell(0).getStringCellValue());
+      assertEquals("yyyy\\-mm\\-dd", sheet.getRow(3).getCell(1).getCellStyle().getDataFormatString());
+      assertEquals("2006-11-24", f.formatCellValue(sheet.getRow(3).getCell(1)));
+      
+      assertEquals("yy/mm/dd", sheet.getRow(4).getCell(0).getStringCellValue());
+      assertEquals("yy/mm/dd", sheet.getRow(4).getCell(1).getCellStyle().getDataFormatString());
+      assertEquals("06/11/24", f.formatCellValue(sheet.getRow(4).getCell(1)));
+      
+      // Another builtin fun one
+      assertEquals("dd/mm/yy", sheet.getRow(5).getCell(0).getStringCellValue());
+      assertEquals("d/m/yy;@", sheet.getRow(5).getCell(1).getCellStyle().getDataFormatString());
+      assertEquals("24/11/06", f.formatCellValue(sheet.getRow(5).getCell(1)));
+      
+      assertEquals("dd-mm-yy", sheet.getRow(6).getCell(0).getStringCellValue());
+      assertEquals("dd\\-mm\\-yy", sheet.getRow(6).getCell(1).getCellStyle().getDataFormatString());
+      assertEquals("24-11-06", f.formatCellValue(sheet.getRow(6).getCell(1)));
+      
+      
+      // Another builtin fun one
+      assertEquals("nn.nn", sheet.getRow(9).getCell(0).getStringCellValue());
+      assertEquals("General", sheet.getRow(9).getCell(1).getCellStyle().getDataFormatString());
+      assertEquals("10.52", f.formatCellValue(sheet.getRow(9).getCell(1)));
+
+      // text isn't quite the format rule...
+      assertEquals("nn.nnn", sheet.getRow(10).getCell(0).getStringCellValue());
+      assertEquals("0.000", sheet.getRow(10).getCell(1).getCellStyle().getDataFormatString());
+      assertEquals("10.520", f.formatCellValue(sheet.getRow(10).getCell(1)));
+
+      // text isn't quite the format rule...
+      assertEquals("nn.n", sheet.getRow(11).getCell(0).getStringCellValue());
+      assertEquals("0.0", sheet.getRow(11).getCell(1).getCellStyle().getDataFormatString());
+      assertEquals("10.5", f.formatCellValue(sheet.getRow(11).getCell(1)));
+
+      // text isn't quite the format rule...
+      assertEquals("£nn.nn", sheet.getRow(12).getCell(0).getStringCellValue());
+      assertEquals("\"£\"#,##0.00", sheet.getRow(12).getCell(1).getCellStyle().getDataFormatString());
+      assertEquals("£10.52", f.formatCellValue(sheet.getRow(12).getCell(1)));
+	}
+
 	private static void log(String msg) {
 		if (false) { // successful tests should be silent
 			System.out.println(msg);