From 357f3eaf7d92a09650d36f54dd49d1c771cbbc4c Mon Sep 17 00:00:00 2001
From: Josh Micich <josh@apache.org>
Date: Fri, 29 Aug 2008 03:25:23 +0000
Subject: [PATCH] Changed FormulaRecord.getParsedExpression to return Ptg array

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@690091 13f79535-47bb-0310-9956-ffa450edef68
---
 .../apache/poi/hssf/dev/FormulaViewer.java    | 60 ++++++++-----------
 .../apache/poi/hssf/record/FormulaRecord.java | 14 +----
 .../TestEventWorkbookBuilder.java             | 43 +++++++------
 .../poi/hssf/record/TestFormulaRecord.java    | 41 ++++++-------
 .../poi/hssf/usermodel/FormulaExtractor.java  |  8 +--
 .../poi/hssf/usermodel/TestBug42464.java      | 11 ++--
 .../usermodel/TestFormulaEvaluatorBugs.java   | 12 ++--
 7 files changed, 82 insertions(+), 107 deletions(-)

diff --git a/src/java/org/apache/poi/hssf/dev/FormulaViewer.java b/src/java/org/apache/poi/hssf/dev/FormulaViewer.java
index 91d342099b..36e527ae5b 100644
--- a/src/java/org/apache/poi/hssf/dev/FormulaViewer.java
+++ b/src/java/org/apache/poi/hssf/dev/FormulaViewer.java
@@ -15,25 +15,21 @@
    limitations under the License.
 ==================================================================== */
 
-
-/*
- * FormulaViewer.java - finds formulas in a BIFF8 file and attempts to parse them and
- * display info about them.
- *
- * Created on November 18, 2001, 7:58 AM
- */
 package org.apache.poi.hssf.dev;
 
 import java.io.FileInputStream;
-
-//import java.io.*;
 import java.util.List;
 
-import org.apache.poi.poifs.filesystem.POIFSFileSystem;
-import org.apache.poi.hssf.record.*;
-import org.apache.poi.hssf.record.formula.*;
+import org.apache.poi.hssf.model.FormulaParser;
+import org.apache.poi.hssf.record.FormulaRecord;
+import org.apache.poi.hssf.record.Record;
+import org.apache.poi.hssf.record.RecordFactory;
+import org.apache.poi.hssf.record.formula.ExpPtg;
+import org.apache.poi.hssf.record.formula.FuncPtg;
+import org.apache.poi.hssf.record.formula.OperationPtg;
+import org.apache.poi.hssf.record.formula.Ptg;
 import org.apache.poi.hssf.usermodel.HSSFWorkbook;
-import org.apache.poi.hssf.model.*;
+import org.apache.poi.poifs.filesystem.POIFSFileSystem;
 
 /**
  * FormulaViewer - finds formulas in a BIFF8 file and attempts to read them/display
@@ -87,20 +83,21 @@ public class FormulaViewer
     
     private void listFormula(FormulaRecord record) {
         String sep="~";
-        List tokens= record.getParsedExpression();
-        int numptgs = record.getNumberOfExpressionTokens();
-        Ptg token = null;
-        String name,numArg;
-        if (tokens != null) {
-            token = (Ptg) tokens.get(numptgs-1);
+        Ptg[] tokens= record.getParsedExpression();
+        Ptg token;
+        int numptgs = tokens.length;
+        String numArg;
+            token = tokens[numptgs-1];
             if (token instanceof FuncPtg) {
                 numArg = String.valueOf(numptgs-1);
-            } else { numArg = String.valueOf(-1);}
+            } else { 
+            	numArg = String.valueOf(-1);
+            }
             
             StringBuffer buf = new StringBuffer();
             
             if (token instanceof ExpPtg) return;
-            buf.append(name=((OperationPtg) token).toFormulaString((HSSFWorkbook)null));
+            buf.append(((OperationPtg) token).toFormulaString((HSSFWorkbook)null));
             buf.append(sep);
             switch (token.getPtgClass()) {
                 case Ptg.CLASS_REF :
@@ -116,7 +113,7 @@ public class FormulaViewer
             
             buf.append(sep);
             if (numptgs>1) {
-                token = (Ptg) tokens.get(numptgs-2);
+                token = tokens[numptgs-2];
                 switch (token.getPtgClass()) {
                     case Ptg.CLASS_REF :
                         buf.append("REF");
@@ -134,9 +131,6 @@ public class FormulaViewer
             buf.append(sep);
             buf.append(numArg);
             System.out.println(buf.toString());
-        } else  {
-            System.out.println("#NAME");
-        }
     }
 
     /**
@@ -155,20 +149,18 @@ public class FormulaViewer
         System.out.println("value = " + record.getValue());
         System.out.print("xf = " + record.getXFIndex());
         System.out.print(", number of ptgs = "
-                           + record.getNumberOfExpressionTokens());
+                           + record.getParsedExpression().length);
         System.out.println(", options = " + record.getOptions());
         System.out.println("RPN List = "+formulaString(record));
         System.out.println("Formula text = "+ composeFormula(record));
     }
 
     private String formulaString(FormulaRecord record) {
-        StringBuffer formula = new StringBuffer("=");
-        int          numptgs = record.getNumberOfExpressionTokens();
-        List         tokens    = record.getParsedExpression();
-        Ptg token;
+
         StringBuffer buf = new StringBuffer();
-           for (int i=0;i<numptgs;i++) {
-           token = (Ptg) tokens.get(i);
+		Ptg[] tokens = record.getParsedExpression();
+		for (int i = 0; i < tokens.length; i++) {
+			Ptg token = tokens[i];
             buf.append( token.toFormulaString((HSSFWorkbook)null));
             switch (token.getPtgClass()) {
                 case Ptg.CLASS_REF :
@@ -187,9 +179,9 @@ public class FormulaViewer
     }
     
     
-    private String composeFormula(FormulaRecord record)
+    private static String composeFormula(FormulaRecord record)
     {
-       return  org.apache.poi.hssf.model.FormulaParser.toFormulaString((HSSFWorkbook)null,record.getParsedExpression());
+       return  FormulaParser.toFormulaString((HSSFWorkbook)null, record.getParsedExpression());
     }
 
     /**
diff --git a/src/java/org/apache/poi/hssf/record/FormulaRecord.java b/src/java/org/apache/poi/hssf/record/FormulaRecord.java
index 1074c3c21e..4cf7d95a3e 100644
--- a/src/java/org/apache/poi/hssf/record/FormulaRecord.java
+++ b/src/java/org/apache/poi/hssf/record/FormulaRecord.java
@@ -180,18 +180,10 @@ public final class FormulaRecord extends Record implements CellValueRecordInterf
     }
 
     /**
-     * get the size of the stack
-     * @return size of the stack
+     * @return the formula tokens. never <code>null</code>
      */
-    public int getNumberOfExpressionTokens() {
-        return field_8_parsed_expr.length;
-    }
-
-    /**
-     * @return list of formula tokens. never <code>null</code>
-     */
-    public List getParsedExpression() {
-        return Arrays.asList(field_8_parsed_expr); // TODO - return array
+    public Ptg[] getParsedExpression() {
+        return (Ptg[]) field_8_parsed_expr.clone();
     }
 
     public void setParsedExpression(Ptg[] ptgs) {
diff --git a/src/testcases/org/apache/poi/hssf/eventusermodel/TestEventWorkbookBuilder.java b/src/testcases/org/apache/poi/hssf/eventusermodel/TestEventWorkbookBuilder.java
index 215732deb5..c8beb7b78b 100644
--- a/src/testcases/org/apache/poi/hssf/eventusermodel/TestEventWorkbookBuilder.java
+++ b/src/testcases/org/apache/poi/hssf/eventusermodel/TestEventWorkbookBuilder.java
@@ -29,6 +29,7 @@ import org.apache.poi.hssf.model.FormulaParser;
 import org.apache.poi.hssf.model.Workbook;
 import org.apache.poi.hssf.record.FormulaRecord;
 import org.apache.poi.hssf.record.Record;
+import org.apache.poi.hssf.record.formula.Ptg;
 import org.apache.poi.hssf.record.formula.Ref3DPtg;
 import org.apache.poi.hssf.usermodel.HSSFWorkbook;
 import org.apache.poi.hssf.util.SheetReferences;
@@ -56,13 +57,13 @@ public final class TestEventWorkbookBuilder extends TestCase {
 		}
 	} 
 	
-	public void testBasics() throws Exception {
+	public void testBasics() {
 		assertNotNull(listener.getSSTRecord());
 		assertNotNull(listener.getBoundSheetRecords());
 		assertNotNull(listener.getExternSheetRecords());
 	}
 	
-	public void testGetStubWorkbooks() throws Exception {
+	public void testGetStubWorkbooks() {
 		assertNotNull(listener.getStubWorkbook());
 		assertNotNull(listener.getStubHSSFWorkbook());
 		
@@ -70,7 +71,7 @@ public final class TestEventWorkbookBuilder extends TestCase {
 		assertNotNull(listener.getStubHSSFWorkbook().getSheetReferences());
 	}
 	
-	public void testContents() throws Exception {
+	public void testContents() {
 		assertEquals(2, listener.getSSTRecord().getNumStrings());
 		assertEquals(3, listener.getBoundSheetRecords().length);
 		assertEquals(1, listener.getExternSheetRecords().length);
@@ -83,11 +84,12 @@ public final class TestEventWorkbookBuilder extends TestCase {
 		assertEquals("S2", ref.getSheetName(2));
 	}
 	
-	public void testFormulas() throws Exception {
-		FormulaRecord fr;
+	public void testFormulas() {
+		
+		FormulaRecord[] fRecs = mockListen.getFormulaRecords();
 		
 		// Check our formula records
-		assertEquals(6, mockListen._frecs.size());
+		assertEquals(6, fRecs.length);
 		
 		Workbook stubWB = listener.getStubWorkbook();
 		assertNotNull(stubWB);
@@ -100,47 +102,45 @@ public final class TestEventWorkbookBuilder extends TestCase {
 		assertEquals("Sh3", stubWB.getSheetName(2));
 		
 		// Check we can get the formula without breaking
-		for(int i=0; i<mockListen._frecs.size(); i++) {
-			fr = (FormulaRecord)mockListen._frecs.get(i);
-			FormulaParser.toFormulaString(stubHSSF, fr.getParsedExpression());
+		for(int i=0; i<fRecs.length; i++) {
+			FormulaParser.toFormulaString(stubHSSF, fRecs[i].getParsedExpression());
 		}
 		
 		// Peer into just one formula, and check that
 		//  all the ptgs give back the right things
-		List ptgs = ((FormulaRecord)mockListen._frecs.get(0)).getParsedExpression();
-		assertEquals(1, ptgs.size());
-		assertTrue(ptgs.get(0) instanceof Ref3DPtg);
+		Ptg[] ptgs = fRecs[0].getParsedExpression();
+		assertEquals(1, ptgs.length);
+		assertTrue(ptgs[0] instanceof Ref3DPtg);
 		
-		Ref3DPtg ptg = (Ref3DPtg)ptgs.get(0);
+		Ref3DPtg ptg = (Ref3DPtg)ptgs[0];
 		assertEquals("Sheet1!A1", ptg.toFormulaString(stubHSSF));
 		
 		
 		// Now check we get the right formula back for
 		//  a few sample ones
+		FormulaRecord fr;
 		
 		// Sheet 1 A2 is on same sheet
-		fr = (FormulaRecord)mockListen._frecs.get(0);
+		fr = fRecs[0];
 		assertEquals(1, fr.getRow());
 		assertEquals(0, fr.getColumn());
 		assertEquals("Sheet1!A1", FormulaParser.toFormulaString(stubHSSF, fr.getParsedExpression()));
 		
 		// Sheet 1 A5 is to another sheet
-		fr = (FormulaRecord)mockListen._frecs.get(3);
+		fr = fRecs[3];
 		assertEquals(4, fr.getRow());
 		assertEquals(0, fr.getColumn());
 		assertEquals("'S2'!A1", FormulaParser.toFormulaString(stubHSSF, fr.getParsedExpression()));
 		
 		// Sheet 1 A7 is to another sheet, range
-		fr = (FormulaRecord)mockListen._frecs.get(5);
+		fr = fRecs[5];
 		assertEquals(6, fr.getRow());
 		assertEquals(0, fr.getColumn());
 		assertEquals("SUM(Sh3!A1:A4)", FormulaParser.toFormulaString(stubHSSF, fr.getParsedExpression()));
 		
 		
 		// Now, load via Usermodel and re-check
-		InputStream is = HSSFTestDataSamples.openSampleFileStream("3dFormulas.xls");
-		POIFSFileSystem fs = new POIFSFileSystem(is);
-		HSSFWorkbook wb = new HSSFWorkbook(fs);
+		HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("3dFormulas.xls");
 		assertEquals("Sheet1!A1", wb.getSheetAt(0).getRow(1).getCell(0).getCellFormula());
 		assertEquals("SUM(Sh3!A1:A4)", wb.getSheetAt(0).getRow(6).getCell(0).getCellFormula());
 	}
@@ -156,5 +156,10 @@ public final class TestEventWorkbookBuilder extends TestCase {
 				_frecs.add(record);
 			}
 		}
+		public FormulaRecord[] getFormulaRecords() {
+			FormulaRecord[] result = new FormulaRecord[_frecs.size()];
+			_frecs.toArray(result);
+			return result;
+		}
 	}
 }
\ No newline at end of file
diff --git a/src/testcases/org/apache/poi/hssf/record/TestFormulaRecord.java b/src/testcases/org/apache/poi/hssf/record/TestFormulaRecord.java
index 3fd2b3cf3e..0d96d737cf 100644
--- a/src/testcases/org/apache/poi/hssf/record/TestFormulaRecord.java
+++ b/src/testcases/org/apache/poi/hssf/record/TestFormulaRecord.java
@@ -17,15 +17,14 @@
 
 package org.apache.poi.hssf.record;
 
-
 import java.io.ByteArrayInputStream;
-import java.util.List;
 
 import junit.framework.TestCase;
 
 import org.apache.poi.hssf.record.formula.AttrPtg;
 import org.apache.poi.hssf.record.formula.FuncVarPtg;
 import org.apache.poi.hssf.record.formula.IntPtg;
+import org.apache.poi.hssf.record.formula.Ptg;
 import org.apache.poi.hssf.record.formula.RefPtg;
 
 /**
@@ -39,14 +38,12 @@ public final class TestFormulaRecord extends TestCase {
 	public void testCreateFormulaRecord () {
 		FormulaRecord record = new FormulaRecord();
 		record.setColumn((short)0);
-		//record.setRow((short)1);
 		record.setRow(1);
 		record.setXFIndex((short)4);
 		
-		assertEquals(record.getColumn(),(short)0);
-		//assertEquals(record.getRow(),(short)1);
-		assertEquals((short)record.getRow(),(short)1);
-		assertEquals(record.getXFIndex(),(short)4);
+		assertEquals(record.getColumn(),0);
+		assertEquals(record.getRow(), 1);
+		assertEquals(record.getXFIndex(),4);
 	}
 	
 	/**
@@ -103,7 +100,7 @@ public final class TestFormulaRecord extends TestCase {
 		assertEquals("Offset 22", 1, output[26]);
 	}
 	
-	public void testWithConcat()  throws Exception {
+	public void testWithConcat() {
 		// =CHOOSE(2,A2,A3,A4)
 		byte[] data = {
 				6, 0, 68, 0,
@@ -126,23 +123,19 @@ public final class TestFormulaRecord extends TestCase {
 		
 		FormulaRecord fr = new FormulaRecord(inp);
 		
-		List ptgs = fr.getParsedExpression();
-		assertEquals(9, ptgs.size());
-		assertEquals(IntPtg.class,	   ptgs.get(0).getClass());
-		assertEquals(AttrPtg.class,	  ptgs.get(1).getClass());
-		assertEquals(RefPtg.class, ptgs.get(2).getClass());
-		assertEquals(AttrPtg.class,	  ptgs.get(3).getClass());
-		assertEquals(RefPtg.class, ptgs.get(4).getClass());
-		assertEquals(AttrPtg.class,	  ptgs.get(5).getClass());
-		assertEquals(RefPtg.class, ptgs.get(6).getClass());
-		assertEquals(AttrPtg.class,	  ptgs.get(7).getClass());
-		assertEquals(FuncVarPtg.class,   ptgs.get(8).getClass());
+		Ptg[] ptgs = fr.getParsedExpression();
+		assertEquals(9, ptgs.length);
+		assertEquals(IntPtg.class,	   ptgs[0].getClass());
+		assertEquals(AttrPtg.class,	  ptgs[1].getClass());
+		assertEquals(RefPtg.class, ptgs[2].getClass());
+		assertEquals(AttrPtg.class,	  ptgs[3].getClass());
+		assertEquals(RefPtg.class, ptgs[4].getClass());
+		assertEquals(AttrPtg.class,	  ptgs[5].getClass());
+		assertEquals(RefPtg.class, ptgs[6].getClass());
+		assertEquals(AttrPtg.class,	  ptgs[7].getClass());
+		assertEquals(FuncVarPtg.class,   ptgs[8].getClass());
 		
-		FuncVarPtg choose = (FuncVarPtg)ptgs.get(8);
+		FuncVarPtg choose = (FuncVarPtg)ptgs[8];
 		assertEquals("CHOOSE", choose.getName());
 	}
-	
-	public static void main(String [] ignored_args) {
-		junit.textui.TestRunner.run(TestFormulaRecord.class);
-	}
 }
diff --git a/src/testcases/org/apache/poi/hssf/usermodel/FormulaExtractor.java b/src/testcases/org/apache/poi/hssf/usermodel/FormulaExtractor.java
index d657647eae..891b36ad3d 100644
--- a/src/testcases/org/apache/poi/hssf/usermodel/FormulaExtractor.java
+++ b/src/testcases/org/apache/poi/hssf/usermodel/FormulaExtractor.java
@@ -17,8 +17,6 @@
 
 package org.apache.poi.hssf.usermodel;
 
-import java.util.List;
-
 import org.apache.poi.hssf.record.CellValueRecordInterface;
 import org.apache.poi.hssf.record.aggregates.FormulaRecordAggregate;
 import org.apache.poi.hssf.record.formula.Ptg;
@@ -40,10 +38,6 @@ public final class FormulaExtractor {
 			throw new IllegalArgumentException("Not a formula cell");
 		}
 		FormulaRecordAggregate fra = (FormulaRecordAggregate) vr;
-		List tokens = fra.getFormulaRecord().getParsedExpression();
-		Ptg[] result = new Ptg[tokens.size()];
-		tokens.toArray(result);
-		return result;
+		return fra.getFormulaRecord().getParsedExpression();
 	}
-
 }
diff --git a/src/testcases/org/apache/poi/hssf/usermodel/TestBug42464.java b/src/testcases/org/apache/poi/hssf/usermodel/TestBug42464.java
index 1f1eca4fc2..516ff3e929 100644
--- a/src/testcases/org/apache/poi/hssf/usermodel/TestBug42464.java
+++ b/src/testcases/org/apache/poi/hssf/usermodel/TestBug42464.java
@@ -18,13 +18,13 @@
 package org.apache.poi.hssf.usermodel;
 
 import java.util.Iterator;
-import java.util.List;
 
 import junit.framework.TestCase;
 
 import org.apache.poi.hssf.HSSFTestDataSamples;
 import org.apache.poi.hssf.record.FormulaRecord;
 import org.apache.poi.hssf.record.aggregates.FormulaRecordAggregate;
+import org.apache.poi.hssf.record.formula.Ptg;
 import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator.CellValue;
 import org.apache.poi.hssf.util.CellReference;
 
@@ -65,15 +65,14 @@ public final class TestBug42464 extends TestCase {
 			}
 			FormulaRecordAggregate record = (FormulaRecordAggregate) cell.getCellValueRecord();
 			FormulaRecord r = record.getFormulaRecord();
-			List ptgs = r.getParsedExpression();
+			Ptg[] ptgs = r.getParsedExpression();
 			
 			String cellRef = new CellReference(row.getRowNum(), cell.getCellNum(), false, false).formatAsString();
 			if(false && cellRef.equals("BP24")) { // TODO - replace System.out.println()s with asserts
 				System.out.print(cellRef);
-				System.out.println(" - has " + r.getNumberOfExpressionTokens() 
-				        + " ptgs:");
-				for(int i=0; i<ptgs.size(); i++) {
-					String c = ptgs.get(i).getClass().toString();
+				System.out.println(" - has " + ptgs.length + " ptgs:");
+				for(int i=0; i<ptgs.length; i++) {
+					String c = ptgs[i].getClass().toString();
 					System.out.println("\t" + c.substring(c.lastIndexOf('.')+1) );
 				}
 				System.out.println("-> " + cell.getCellFormula());
diff --git a/src/testcases/org/apache/poi/hssf/usermodel/TestFormulaEvaluatorBugs.java b/src/testcases/org/apache/poi/hssf/usermodel/TestFormulaEvaluatorBugs.java
index 7dbb9c3e16..6ebcf96bb6 100644
--- a/src/testcases/org/apache/poi/hssf/usermodel/TestFormulaEvaluatorBugs.java
+++ b/src/testcases/org/apache/poi/hssf/usermodel/TestFormulaEvaluatorBugs.java
@@ -20,7 +20,6 @@ package org.apache.poi.hssf.usermodel;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.util.Iterator;
-import java.util.List;
 
 import junit.framework.AssertionFailedError;
 import junit.framework.TestCase;
@@ -29,6 +28,7 @@ import org.apache.poi.hssf.HSSFTestDataSamples;
 import org.apache.poi.hssf.record.aggregates.FormulaRecordAggregate;
 import org.apache.poi.hssf.record.formula.AreaPtg;
 import org.apache.poi.hssf.record.formula.FuncVarPtg;
+import org.apache.poi.hssf.record.formula.Ptg;
 
 /**
  * 
@@ -183,14 +183,14 @@ public final class TestFormulaEvaluatorBugs extends TestCase {
 		HSSFCell cellSUM = rowSUM.getCell(0);
 
 		FormulaRecordAggregate frec = (FormulaRecordAggregate) cellSUM.getCellValueRecord();
-		List ops = frec.getFormulaRecord().getParsedExpression();
-		assertEquals(2, ops.size());
-		assertEquals(AreaPtg.class, ops.get(0).getClass());
-		assertEquals(FuncVarPtg.class, ops.get(1).getClass());
+		Ptg[] ops = frec.getFormulaRecord().getParsedExpression();
+		assertEquals(2, ops.length);
+		assertEquals(AreaPtg.class, ops[0].getClass());
+		assertEquals(FuncVarPtg.class, ops[1].getClass());
 
 		// Actually stored as C1 to C65536
 		// (last row is -1 === 65535)
-		AreaPtg ptg = (AreaPtg) ops.get(0);
+		AreaPtg ptg = (AreaPtg) ops[0];
 		assertEquals(2, ptg.getFirstColumn());
 		assertEquals(2, ptg.getLastColumn());
 		assertEquals(0, ptg.getFirstRow());
-- 
2.39.5