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Fix for bug 46213 - FormulaRecordAggregate should gracefully ignore extra StringRecords

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@717883 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Josh Micich 2008-11-15 17:25:32 +00:00
parent 647a9c8d73
commit d32368be4a
5 changed files with 62 additions and 25 deletions
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1
src/documentation/content/xdocs/changes.xml
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@ -37,6 +37,7 @@
<!-- Don't forget to update status.xml too! -->
<release version="3.5-beta4" date="2008-??-??">
<action dev="POI-DEVELOPERS" type="fix">46213 - Fixed FormulaRecordAggregate to gracefully ignore extra StringRecords</action>
<action dev="POI-DEVELOPERS" type="fix">46174 - Fixed HSSFName to handle general formulas (not just area references)</action>
<action dev="POI-DEVELOPERS" type="add">46189 - added chart records: CHARTFRTINFO, STARTBLOCK, ENDBLOCK, STARTOBJECT, ENDOBJECT, and CATLAB</action>
<action dev="POI-DEVELOPERS" type="fix">46199 - More tweaks to EmbeddedObjectRefSubRecord</action>

1
src/documentation/content/xdocs/status.xml
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@ -34,6 +34,7 @@
<!-- Don't forget to update changes.xml too! -->
<changes>
<release version="3.5-beta4" date="2008-??-??">
<action dev="POI-DEVELOPERS" type="fix">46213 - Fixed FormulaRecordAggregate to gracefully ignore extra StringRecords</action>
<action dev="POI-DEVELOPERS" type="fix">46174 - Fixed HSSFName to handle general formulas (not just area references)</action>
<action dev="POI-DEVELOPERS" type="add">46189 - added chart records: CHARTFRTINFO, STARTBLOCK, ENDBLOCK, STARTOBJECT, ENDOBJECT, and CATLAB</action>
<action dev="POI-DEVELOPERS" type="fix">46199 - More tweaks to EmbeddedObjectRefSubRecord</action>

20
src/java/org/apache/poi/hssf/record/aggregates/FormulaRecordAggregate.java
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@ -26,7 +26,6 @@ import org.apache.poi.hssf.record.StringRecord;
import org.apache.poi.hssf.record.formula.ExpPtg;
import org.apache.poi.hssf.record.formula.Ptg;
import org.apache.poi.hssf.util.CellReference;
import org.apache.poi.ss.formula.Formula;
/**
* The formula record aggregate is used to join together the formula record and it's
@ -51,17 +50,19 @@ public final class FormulaRecordAggregate extends RecordAggregate implements Cel
if (svm == null) {
throw new IllegalArgumentException("sfm must not be null");
}
boolean hasStringRec = stringRec != null;
boolean hasCachedStringFlag = formulaRec.hasCachedResultString();
if (hasStringRec != hasCachedStringFlag) {
throw new RecordFormatException("String record was "
+ (hasStringRec ? "": "not ") + " supplied but formula record flag is "
+ (hasCachedStringFlag ? "" : "not ") + " set");
if (formulaRec.hasCachedResultString()) {
if (stringRec == null) {
throw new RecordFormatException("Formula record flag is set but String record was not found");
}
_stringRecord = stringRec;
} else {
// Usually stringRec is null here (in agreement with what the formula rec says).
// In the case where an extra StringRecord is erroneously present, Excel (2007)
// ignores it (see bug 46213).
_stringRecord = null;
}
if (formulaRec.isSharedFormula()) {
CellReference cr = new CellReference(formulaRec.getRow(), formulaRec.getColumn());
CellReference firstCell = formulaRec.getFormula().getExpReference();
if (firstCell == null) {
handleMissingSharedFormulaRecord(formulaRec);
@ -71,7 +72,6 @@ public final class FormulaRecordAggregate extends RecordAggregate implements Cel
}
_formulaRecord = formulaRec;
_sharedValueManager = svm;
_stringRecord = stringRec;
}
/**
* Sometimes the shared formula flag "seems" to be erroneously set (because the corresponding

35
src/testcases/org/apache/poi/hssf/record/aggregates/TestFormulaRecordAggregate.java
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@ -17,10 +17,14 @@
package org.apache.poi.hssf.record.aggregates;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.apache.poi.hssf.record.FormulaRecord;
import org.apache.poi.hssf.record.Record;
import org.apache.poi.hssf.record.RecordFormatException;
import org.apache.poi.hssf.record.StringRecord;
import org.apache.poi.hssf.usermodel.RecordInspector.RecordCollector;
/**
*
@ -36,4 +40,35 @@ public final class TestFormulaRecordAggregate extends TestCase {
FormulaRecordAggregate fagg = new FormulaRecordAggregate(f, s, SharedValueManager.EMPTY);
assertEquals("abc", fagg.getStringValue());
}
/**
* Sometimes a {@link StringRecord} appears after a {@link FormulaRecord} even though the
* formula has evaluated to a text value. This might be more likely to occur when the formula
* <i>can</i> evaluate to a text value.<br/>
* Bug 46213 attachment 22874 has such an extra {@link StringRecord} at stream offset 0x5765.
* This file seems to open in Excel (2007) with no trouble. When it is re-saved, Excel omits
* the extra record. POI should do the same.
*/
public void testExtraStringRecord_bug46213() {
FormulaRecord fr = new FormulaRecord();
fr.setValue(2.0);
StringRecord sr = new StringRecord();
sr.setString("NA");
SharedValueManager svm = SharedValueManager.EMPTY;
FormulaRecordAggregate fra;
try {
fra = new FormulaRecordAggregate(fr, sr, svm);
} catch (RecordFormatException e) {
if ("String record was supplied but formula record flag is not set".equals(e.getMessage())) {
throw new AssertionFailedError("Identified bug 46213");
}
throw e;
}
RecordCollector rc = new RecordCollector();
fra.visitContainedRecords(rc);
Record[] vraRecs = rc.getRecords();
assertEquals(1, vraRecs.length);
assertEquals(fr, vraRecs[0]);
}
}

8
src/testcases/org/apache/poi/hssf/usermodel/RecordInspector.java
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@ -24,7 +24,7 @@ import org.apache.poi.hssf.record.Record;
import org.apache.poi.hssf.record.aggregates.RecordAggregate.RecordVisitor;
/**
* Test utility class to get {@link Record}s out HSSF objects
* Test utility class to get {@link Record}s out of HSSF objects
*
* @author Josh Micich
*/
@ -34,12 +34,12 @@ public final class RecordInspector {
// no instances of this class
}
private static final class RecordCollector implements RecordVisitor {
public static final class RecordCollector implements RecordVisitor {
private List _list;
private List<Record> _list;
public RecordCollector() {
_list = new ArrayList(128);
_list = new ArrayList<Record>(128);
}
public void visitRecord(Record r) {