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Clean-up of copy/clone methods in Ptg hierarchy 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@836343 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Josh Micich 2009-11-15 09:01:35 +00:00
parent 5fe8f2bdd9
commit efb9160c1a
12 changed files with 50 additions and 95 deletions
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13
src/java/org/apache/poi/hssf/record/SharedFormulaRecord.java
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@ -118,6 +118,7 @@ public final class SharedFormulaRecord extends SharedValueRecordBase {
fixupRelativeColumn(formulaColumn,refNPtg.getColumn(),refNPtg.isColRelative()),
refNPtg.isRowRelative(),
refNPtg.isColRelative());
ptg.setClass(originalOperandClass);
} else if (ptg instanceof AreaPtgBase) {
AreaPtgBase areaNPtg = (AreaPtgBase)ptg;
ptg = new AreaPtg(fixupRelativeRow(formulaRow,areaNPtg.getFirstRow(),areaNPtg.isFirstRowRelative()),
@ -128,15 +129,13 @@ public final class SharedFormulaRecord extends SharedValueRecordBase {
areaNPtg.isLastRowRelative(),
areaNPtg.isFirstColRelative(),
areaNPtg.isLastColRelative());
} else {
if (false) {// do we need a ptg clone here?
ptg = ptg.copy();
}
}
if (!ptg.isBaseToken()) {
ptg.setClass(originalOperandClass);
} else if (ptg instanceof OperandPtg<?>) {
// Any subclass of OperandPtg is mutable, so it's safest to not share these instances.
ptg = ((OperandPtg<?>) ptg).copy();
} else {
// all other Ptgs are immutable and can be shared
}
newPtgStack[k] = ptg;
}
return newPtgStack;

6
src/java/org/apache/poi/hssf/record/TextObjectRecord.java
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@ -19,6 +19,7 @@ package org.apache.poi.hssf.record;
import org.apache.poi.hssf.record.cont.ContinuableRecord;
import org.apache.poi.hssf.record.cont.ContinuableRecordOutput;
import org.apache.poi.hssf.record.formula.OperandPtg;
import org.apache.poi.hssf.record.formula.Ptg;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
import org.apache.poi.util.BitField;
@ -74,13 +75,14 @@ public final class TextObjectRecord extends ContinuableRecord {
*/
private int _unknownPreFormulaInt;
/** expect tRef, tRef3D, tArea, tArea3D or tName */
private Ptg _linkRefPtg;
private OperandPtg<?> _linkRefPtg;
/**
* Not clear if needed . Excel seems to be OK if this byte is not present.
* Value is often the same as the earlier firstColumn byte. */
private Byte _unknownPostFormulaByte;
public TextObjectRecord() {
//
}
public TextObjectRecord(RecordInputStream in) {
@ -106,7 +108,7 @@ public final class TextObjectRecord extends ContinuableRecord {
throw new RecordFormatException("Read " + ptgs.length
+ " tokens but expected exactly 1");
}
_linkRefPtg = ptgs[0];
_linkRefPtg = (OperandPtg<?>) ptgs[0];
if (in.remaining() > 0) {
_unknownPostFormulaByte = Byte.valueOf(in.readByte());
} else {

2
src/java/org/apache/poi/hssf/record/formula/Area3DPtg.java
View File

@ -32,7 +32,7 @@ import org.apache.poi.util.LittleEndianOutput;
* @author avik
* @author Jason Height (jheight at chariot dot net dot au)
*/
public final class Area3DPtg extends AreaPtgBase implements WorkbookDependentFormula, ExternSheetReferenceToken {
public final class Area3DPtg extends AreaPtgBase<Area3DPtg> implements WorkbookDependentFormula, ExternSheetReferenceToken {
public final static byte sid = 0x3b;
private final static int SIZE = 11; // 10 + 1 for Ptg

13
src/java/org/apache/poi/hssf/record/formula/AreaPtgBase.java
View File

@ -29,7 +29,7 @@ import org.apache.poi.util.LittleEndianOutput;
* @author andy
* @author Jason Height (jheight at chariot dot net dot au)
*/
public abstract class AreaPtgBase extends OperandPtg implements AreaI {
public abstract class AreaPtgBase<Z extends AreaPtgBase<Z>> extends OperandPtg<Z> implements AreaI {
/**
* TODO - (May-2008) fix subclasses of AreaPtg 'AreaN~' which are used in shared formulas.
* see similar comment in ReferencePtg
@ -96,17 +96,6 @@ public abstract class AreaPtgBase extends OperandPtg implements AreaI {
}
}
private static void $checkColumnBounds(int colIx) {
if((colIx & 0x0FF) != colIx) {
throw new IllegalArgumentException("colIx (" + colIx + ") is out of range");
}
}
private static void $checkRowBounds(int rowIx) {
if((rowIx & 0x0FFFF) != rowIx) {
throw new IllegalArgumentException("rowIx (" + rowIx + ") is out of range");
}
}
protected final void readCoordinates(LittleEndianInput in) {
field_1_first_row = in.readUShort();
field_2_last_row = in.readUShort();

10
src/java/org/apache/poi/hssf/record/formula/AttrPtg.java
View File

@ -260,14 +260,4 @@ public final class AttrPtg extends ControlPtg {
}
return "UNKNOWN ATTRIBUTE";
}
public Object clone() {
int[] jt;
if (_jumpTable == null) {
jt = null;
} else {
jt = _jumpTable.clone();
}
return new AttrPtg(_options, _data, jt, _chooseFuncOffset);
}
}

13
src/java/org/apache/poi/hssf/record/formula/OperandPtg.java
View File

@ -21,12 +21,21 @@ package org.apache.poi.hssf.record.formula;
/**
* @author Josh Micich
*/
public abstract class OperandPtg extends Ptg {
public abstract class OperandPtg<Y extends OperandPtg<Y>> extends Ptg implements Cloneable {
/**
* All Operand <tt>Ptg</tt>s are classifed ('relative', 'value', 'array')
* All Operand {@link Ptg}s are classified ('relative', 'value', 'array')
*/
public final boolean isBaseToken() {
return false;
}
public final Y copy() {
try {
@SuppressWarnings("unchecked")
Y result = (Y) clone();
return result;
} catch (CloneNotSupportedException e) {
throw new RuntimeException(e);
}
}
}

23
src/java/org/apache/poi/hssf/record/formula/Ptg.java
View File

@ -40,7 +40,7 @@ import org.apache.poi.util.LittleEndianOutput;
* @author avik
* @author Jason Height (jheight at chariot dot net dot au)
*/
public abstract class Ptg implements Cloneable {
public abstract class Ptg {
public static final Ptg[] EMPTY_PTG_ARRAY = { };
@ -158,28 +158,7 @@ public abstract class Ptg implements Cloneable {
}
throw new RuntimeException("Unexpected base token id (" + id + ")");
}
/**
* @return a distinct copy of this <tt>Ptg</tt> if the class is mutable, or the same instance
* if the class is immutable.
*/
public final Ptg copy() {
// TODO - all base tokens are logically immutable, but AttrPtg needs some clean-up
if (this instanceof ValueOperatorPtg) {
return this;
}
if (this instanceof ScalarConstantPtg) {
return this;
}
return (Ptg) clone();
}
protected Object clone() {
try {
return super.clone();
} catch (CloneNotSupportedException e) {
throw new RuntimeException(e);
}
}
private static Ptg[] toPtgArray(List<Ptg> l) {
if (l.isEmpty()) {
return EMPTY_PTG_ARRAY;

2
src/java/org/apache/poi/hssf/record/formula/Ref3DPtg.java
View File

@ -31,7 +31,7 @@ import org.apache.poi.util.LittleEndianOutput;
* @author Libin Roman (Vista Portal LDT. Developer)
* @author Jason Height (jheight at chariot dot net dot au)
*/
public final class Ref3DPtg extends RefPtgBase implements WorkbookDependentFormula, ExternSheetReferenceToken {
public final class Ref3DPtg extends RefPtgBase<Ref3DPtg> implements WorkbookDependentFormula, ExternSheetReferenceToken {
public final static byte sid = 0x3a;
private final static int SIZE = 7; // 6 + 1 for Ptg

2
src/java/org/apache/poi/hssf/record/formula/RefPtgBase.java
View File

@ -29,7 +29,7 @@ import org.apache.poi.util.LittleEndianOutput;
* @author Andrew C. Oliver (acoliver@apache.org)
* @author Jason Height (jheight at chariot dot net dot au)
*/
public abstract class RefPtgBase extends OperandPtg {
public abstract class RefPtgBase<Z extends RefPtgBase<Z>> extends OperandPtg<Z> {
/** The row index - zero based unsigned 16 bit value */
private int field_1_row;

13
src/java/org/apache/poi/hssf/record/formula/UnknownPtg.java
View File

@ -19,7 +19,6 @@ package org.apache.poi.hssf.record.formula;
import org.apache.poi.util.LittleEndianOutput;
/**
*
* @author andy
* @author Jason Height (jheight at chariot dot net dot au)
*/
@ -38,18 +37,14 @@ public class UnknownPtg extends Ptg {
out.writeByte(_sid);
}
public int getSize()
{
public int getSize() {
return size;
}
public String toFormulaString()
{
public String toFormulaString() {
return "UNKNOWN";
}
public byte getDefaultOperandClass() {return Ptg.CLASS_VALUE;}
public Object clone() {
return this;
public byte getDefaultOperandClass() {
return Ptg.CLASS_VALUE;
}
}

8
src/java/org/apache/poi/hssf/usermodel/HSSFWorkbook.java
View File

@ -676,16 +676,16 @@ public class HSSFWorkbook extends POIDocument implements org.apache.poi.ss.userm
Ptg[] ptgs = origNameRecord.getNameDefinition();
for (int i=0; i< ptgs.length; i++) {
Ptg ptg = ptgs[i];
ptg = ptg.copy();
if (ptg instanceof Area3DPtg) {
Area3DPtg a3p = (Area3DPtg) ptg;
Area3DPtg a3p = ((Area3DPtg) ptg).copy();
a3p.setExternSheetIndex(newExtSheetIx);
ptgs[i] = a3p;
} else if (ptg instanceof Ref3DPtg) {
Ref3DPtg r3p = (Ref3DPtg) ptg;
Ref3DPtg r3p = ((Ref3DPtg) ptg).copy();
r3p.setExternSheetIndex(newExtSheetIx);
ptgs[i] = r3p;
}
ptgs[i] = ptg;
}
NameRecord newNameRecord = workbook.createBuiltInName(NameRecord.BUILTIN_FILTER_DB, newSheetIndex+1);
newNameRecord.setNameDefinition(ptgs);

18
src/testcases/org/apache/poi/hssf/record/formula/TestFuncPtg.java
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@ -28,11 +28,8 @@ import org.apache.poi.hssf.record.TestcaseRecordInputStream;
public final class TestFuncPtg extends TestCase {
public void testRead() {
// This ptg represents a LEN function extracted from excel
byte[] fakeData = {
0x20, //function index
0,
};
// This function index represents the LEN() function
byte[] fakeData = { 0x20, 0x00,};
FuncPtg ptg = FuncPtg.create(TestcaseRecordInputStream.createLittleEndian(fakeData) );
assertEquals( "Len formula index is not 32(20H)", 0x20, ptg.getFunctionIndex() );
@ -41,14 +38,9 @@ public final class TestFuncPtg extends TestCase {
assertEquals( "Ptg Size", 3, ptg.getSize() );
}
public void testClone() {
public void testNumberOfOperands() {
FuncPtg funcPtg = FuncPtg.create(27); // ROUND() - takes 2 args
FuncPtg clone = (FuncPtg) funcPtg.clone();
if (clone.getNumberOfOperands() == 0) {
fail("clone() did copy field numberOfOperands");
}
assertEquals(2, clone.getNumberOfOperands());
assertEquals("ROUND", clone.getName());
assertEquals(2, funcPtg.getNumberOfOperands());
assertEquals("ROUND", funcPtg.getName());
}
}