Patch from Josh from bug #44371 - support for OFFSET function, and various tweaks to the formula evaluator to support this
git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@629821 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Nick Burch
parent
acd787dcb8
commit
173f63cd0a
@ -36,6 +36,7 @@
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<!-- Don't forget to update status.xml too! -->
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<release version="3.1-beta1" date="2008-??-??">
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<action dev="POI-DEVELOPERS" type="add">44371 - Support for the Offset function</action>
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<action dev="POI-DEVELOPERS" type="fix">38921 - Have HSSFPalette.findSimilar() work properly</action>
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<action dev="POI-DEVELOPERS" type="fix">44456 - Fix the contrib SViewer / SViewerPanel to not fail on sheets with missing rows</action>
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<action dev="POI-DEVELOPERS" type="fix">44403 - Further support for unusual, but valid, arguments to the Mid function</action>
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@ -33,6 +33,7 @@
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<!-- Don't forget to update changes.xml too! -->
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<changes>
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<release version="3.1-beta1" date="2008-??-??">
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<action dev="POI-DEVELOPERS" type="add">44371 - Support for the Offset function</action>
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<action dev="POI-DEVELOPERS" type="fix">38921 - Have HSSFPalette.findSimilar() work properly</action>
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<action dev="POI-DEVELOPERS" type="fix">44456 - Fix the contrib SViewer / SViewerPanel to not fail on sheets with missing rows</action>
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<action dev="POI-DEVELOPERS" type="fix">44403 - Further support for unusual, but valid, arguments to the Mid function</action>
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@ -70,6 +70,20 @@ public class Area3DPtg extends Ptg implements AreaI
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field_5_last_column = in.readShort();
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}
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public Area3DPtg(short firstRow, short lastRow, short firstColumn, short lastColumn,
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boolean firstRowRelative, boolean lastRowRelative, boolean firstColRelative, boolean lastColRelative,
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short externalSheetIndex) {
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setFirstRow(firstRow);
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setLastRow(lastRow);
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setFirstColumn(firstColumn);
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setLastColumn(lastColumn);
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setFirstRowRelative(firstRowRelative);
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setLastRowRelative(lastRowRelative);
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setFirstColRelative(firstColRelative);
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setLastColRelative(lastColRelative);
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setExternSheetIndex(externalSheetIndex);
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}
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public String toString()
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{
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StringBuffer buffer = new StringBuffer();
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@ -27,7 +27,7 @@ import org.apache.poi.hssf.record.formula.Ptg;
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* @author Amol S. Deshmukh < amolweb at ya hoo dot com >
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*
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*/
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public class Area3DEval implements AreaEval {
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public final class Area3DEval implements AreaEval {
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private Area3DPtg delegate;
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@ -90,4 +90,8 @@ public class Area3DEval implements AreaEval {
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return delegate.getFirstRow() == delegate.getLastRow();
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}
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public int getExternSheetIndex() {
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return delegate.getExternSheetIndex();
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}
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}
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@ -20,6 +20,9 @@
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*/
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package org.apache.poi.hssf.record.formula.eval;
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import java.util.HashMap;
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import java.util.Map;
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import org.apache.poi.hssf.record.formula.functions.*;
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/**
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@ -27,12 +30,47 @@ import org.apache.poi.hssf.record.formula.functions.*;
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*
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*/
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public abstract class FunctionEval implements OperationEval {
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/**
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* Some function IDs that require special treatment
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*/
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private static final class FunctionID {
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/** 78 */
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public static final int OFFSET = 78;
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/** 148 */
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public static final int INDIRECT = 148;
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}
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// convenient access to namespace
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private static final FunctionID ID = null;
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protected static Function[] functions = produceFunctions();
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private static Map freeRefFunctionsByIdMap;
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static {
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Map m = new HashMap();
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addMapping(m, ID.OFFSET, new Offset());
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addMapping(m, ID.INDIRECT, new Indirect());
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freeRefFunctionsByIdMap = m;
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}
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private static void addMapping(Map m, int offset, FreeRefFunction frf) {
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m.put(createFRFKey(offset), frf);
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}
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private static Integer createFRFKey(int functionIndex) {
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return new Integer(functionIndex);
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}
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public Function getFunction() {
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short fidx = getFunctionIndex();
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return functions[fidx];
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}
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public boolean isFreeRefFunction() {
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return freeRefFunctionsByIdMap.containsKey(createFRFKey(getFunctionIndex()));
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}
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public FreeRefFunction getFreeRefFunction() {
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return (FreeRefFunction) freeRefFunctionsByIdMap.get(createFRFKey(getFunctionIndex()));
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}
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public abstract short getFunctionIndex();
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@ -115,7 +153,7 @@ public abstract class FunctionEval implements OperationEval {
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retval[75] = new Areas(); // AREAS
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retval[76] = new Rows(); // ROWS
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retval[77] = new Columns(); // COLUMNS
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retval[78] = new Offset(); // OFFSET
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retval[ID.OFFSET] = null; // Offset.evaluate has a different signature
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retval[79] = new Absref(); // ABSREF
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retval[80] = new Relref(); // RELREF
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retval[81] = new Argument(); // ARGUMENT
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@ -185,7 +223,7 @@ public abstract class FunctionEval implements OperationEval {
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retval[145] = new NotImplementedFunction(); // GETDEF
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retval[146] = new Reftext(); // REFTEXT
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retval[147] = new Textref(); // TEXTREF
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retval[148] = new Indirect(); // INDIRECT
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retval[ID.INDIRECT] = null; // Indirect.evaluate has different signature
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retval[149] = new NotImplementedFunction(); // REGISTER
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retval[150] = new Call(); // CALL
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retval[151] = new NotImplementedFunction(); // ADDBAR
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@ -27,7 +27,7 @@ import org.apache.poi.hssf.record.formula.Ref3DPtg;
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* @author Amol S. Deshmukh
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*
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*/
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public class Ref3DEval implements RefEval {
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public final class Ref3DEval implements RefEval {
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private ValueEval value;
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@ -57,4 +57,8 @@ public class Ref3DEval implements RefEval {
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return evaluated;
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}
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public int getExternSheetIndex() {
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return delegate.getExternSheetIndex();
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}
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}
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@ -0,0 +1,57 @@
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/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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package org.apache.poi.hssf.record.formula.functions;
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import org.apache.poi.hssf.record.formula.eval.Eval;
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import org.apache.poi.hssf.record.formula.eval.ValueEval;
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import org.apache.poi.hssf.usermodel.HSSFSheet;
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import org.apache.poi.hssf.usermodel.HSSFWorkbook;
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/**
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* For most Excel functions, involving references ((cell, area), (2d, 3d)), the references are
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* passed in as arguments, and the exact location remains fixed. However, a select few Excel
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* functions have the ability to access cells that were not part of any reference passed as an
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* argument.<br/>
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* Two important functions with this feature are <b>INDIRECT</b> and <b>OFFSET</b><p/>
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*
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* In POI, the <tt>HSSFFormulaEvaluator</tt> evaluates every cell in each reference argument before
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* calling the function. This means that functions using fixed references do not need access to
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* the rest of the workbook to execute. Hence the <tt>evaluate()</tt> method on the common
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* interface <tt>Function</tt> does not take a workbook parameter.<p>
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*
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* This interface recognises the requirement of some functions to freely create and evaluate
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* references beyond those passed in as arguments.
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*
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* @author Josh Micich
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*/
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public interface FreeRefFunction {
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/**
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*
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* @param args the pre-evaluated arguments for this function. args is never <code>null</code>,
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* nor are any of its elements.
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* @param srcCellRow zero based row index of the cell containing the currently evaluating formula
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* @param srcCellCol zero based column index of the cell containing the currently evaluating formula
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* @param workbook is the workbook containing the formula/cell being evaluated
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* @param sheet is the sheet containing the formula/cell being evaluated
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* @return never <code>null</code>. Possibly an instance of <tt>ErrorEval</tt> in the case of
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* a specified Excel error (Exceptions are never thrown to represent Excel errors).
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*
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*/
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ValueEval evaluate(Eval[] args, int srcCellRow, short srcCellCol, HSSFWorkbook workbook, HSSFSheet sheet);
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}
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@ -14,12 +14,36 @@
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Created on May 15, 2005
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*
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*/
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package org.apache.poi.hssf.record.formula.functions;
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public class Indirect extends NotImplementedFunction {
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import org.apache.poi.hssf.record.formula.eval.ErrorEval;
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import org.apache.poi.hssf.record.formula.eval.Eval;
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import org.apache.poi.hssf.record.formula.eval.ValueEval;
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import org.apache.poi.hssf.usermodel.HSSFSheet;
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import org.apache.poi.hssf.usermodel.HSSFWorkbook;
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/**
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* Implementation for Excel function INDIRECT<p/>
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*
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* INDIRECT() returns the cell or area reference denoted by the text argument.<p/>
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*
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* <b>Syntax</b>:</br>
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* <b>INDIRECT</b>(<b>ref_text</b>,isA1Style)<p/>
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*
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* <b>ref_text</b> a string representation of the desired reference as it would normally be written
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* in a cell formula.<br/>
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* <b>isA1Style</b> (default TRUE) specifies whether the ref_text should be interpreted as A1-style
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* or R1C1-style.
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*
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*
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* @author Josh Micich
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*/
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public final class Indirect implements FreeRefFunction {
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public ValueEval evaluate(Eval[] args, int srcCellRow, short srcCellCol, HSSFWorkbook workbook, HSSFSheet sheet) {
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// TODO - implement INDIRECT()
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return ErrorEval.FUNCTION_NOT_IMPLEMENTED;
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}
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}
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@ -14,12 +14,349 @@
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Created on May 15, 2005
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*
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*/
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package org.apache.poi.hssf.record.formula.functions;
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public class Offset extends NotImplementedFunction {
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import org.apache.poi.hssf.record.formula.Area3DPtg;
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import org.apache.poi.hssf.record.formula.AreaPtg;
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import org.apache.poi.hssf.record.formula.eval.Area3DEval;
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import org.apache.poi.hssf.record.formula.eval.AreaEval;
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import org.apache.poi.hssf.record.formula.eval.BoolEval;
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import org.apache.poi.hssf.record.formula.eval.ErrorEval;
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import org.apache.poi.hssf.record.formula.eval.Eval;
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import org.apache.poi.hssf.record.formula.eval.NumericValueEval;
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import org.apache.poi.hssf.record.formula.eval.Ref3DEval;
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import org.apache.poi.hssf.record.formula.eval.RefEval;
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import org.apache.poi.hssf.record.formula.eval.StringEval;
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import org.apache.poi.hssf.record.formula.eval.ValueEval;
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import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
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import org.apache.poi.hssf.usermodel.HSSFSheet;
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import org.apache.poi.hssf.usermodel.HSSFWorkbook;
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/**
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* Implementation for Excel function OFFSET()<p/>
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*
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* OFFSET returns an area reference that is a specified number of rows and columns from a
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* reference cell or area.<p/>
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*
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* <b>Syntax</b>:<br/>
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* <b>OFFSET</b>(<b>reference</b>, <b>rows</b>, <b>cols</b>, height, width)<p/>
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* <b>reference</b> is the base reference.<br/>
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* <b>rows</b> is the number of rows up or down from the base reference.<br/>
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* <b>cols</b> is the number of columns left or right from the base reference.<br/>
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* <b>height</b> (default same height as base reference) is the row count for the returned area reference.<br/>
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* <b>width</b> (default same width as base reference) is the column count for the returned area reference.<br/>
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*
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* @author Josh Micich
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*/
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public final class Offset implements FreeRefFunction {
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// These values are specific to BIFF8
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private static final int LAST_VALID_ROW_INDEX = 0xFFFF;
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private static final int LAST_VALID_COLUMN_INDEX = 0xFF;
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/**
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* Exceptions are used within this class to help simplify flow control when error conditions
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* are encountered
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*/
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private static final class EvalEx extends Exception {
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private final ErrorEval _error;
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public EvalEx(ErrorEval error) {
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_error = error;
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}
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public ErrorEval getError() {
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return _error;
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}
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}
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/**
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* A one dimensional base + offset. Represents either a row range or a column range.
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* Two instances of this class together specify an area range.
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*/
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/* package */ static final class LinearOffsetRange {
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private final int _offset;
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private final int _length;
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public LinearOffsetRange(int offset, int length) {
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if(length == 0) {
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// handled that condition much earlier
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throw new RuntimeException("length may not be zero");
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}
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_offset = offset;
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_length = length;
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}
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public short getFirstIndex() {
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return (short) _offset;
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}
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public short getLastIndex() {
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return (short) (_offset + _length - 1);
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}
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/**
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* Moves the range by the specified translation amount.<p/>
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*
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* This method also 'normalises' the range: Excel specifies that the width and height
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* parameters (length field here) cannot be negative. However, OFFSET() does produce
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* sensible results in these cases. That behavior is replicated here. <p/>
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*
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* @param translationAmount may be zero negative or positive
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*
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* @return the equivalent <tt>LinearOffsetRange</tt> with a positive length, moved by the
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* specified translationAmount.
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*/
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public LinearOffsetRange normaliseAndTranslate(int translationAmount) {
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if (_length > 0) {
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if(translationAmount == 0) {
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return this;
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}
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return new LinearOffsetRange(translationAmount + _offset, _length);
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}
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return new LinearOffsetRange(translationAmount + _offset + _length + 1, -_length);
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}
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public boolean isOutOfBounds(int lowValidIx, int highValidIx) {
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if(_offset < lowValidIx) {
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return true;
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}
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if(getLastIndex() > highValidIx) {
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return true;
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}
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return false;
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}
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public String toString() {
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StringBuffer sb = new StringBuffer(64);
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sb.append(getClass().getName()).append(" [");
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sb.append(_offset).append("...").append(getLastIndex());
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sb.append("]");
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return sb.toString();
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}
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}
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/**
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* Encapsulates either an area or cell reference which may be 2d or 3d.
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*/
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private static final class BaseRef {
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private static final int INVALID_SHEET_INDEX = -1;
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private final int _firstRowIndex;
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private final int _firstColumnIndex;
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private final int _width;
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private final int _height;
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private final int _externalSheetIndex;
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public BaseRef(RefEval re) {
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_firstRowIndex = re.getRow();
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_firstColumnIndex = re.getColumn();
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_height = 1;
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_width = 1;
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if (re instanceof Ref3DEval) {
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Ref3DEval r3e = (Ref3DEval) re;
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_externalSheetIndex = r3e.getExternSheetIndex();
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} else {
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_externalSheetIndex = INVALID_SHEET_INDEX;
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}
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}
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public BaseRef(AreaEval ae) {
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_firstRowIndex = ae.getFirstRow();
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_firstColumnIndex = ae.getFirstColumn();
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_height = ae.getLastRow() - ae.getFirstRow() + 1;
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_width = ae.getLastColumn() - ae.getFirstColumn() + 1;
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if (ae instanceof Area3DEval) {
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Area3DEval a3e = (Area3DEval) ae;
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_externalSheetIndex = a3e.getExternSheetIndex();
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} else {
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_externalSheetIndex = INVALID_SHEET_INDEX;
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}
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}
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public int getWidth() {
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return _width;
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}
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public int getHeight() {
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return _height;
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}
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public int getFirstRowIndex() {
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return _firstRowIndex;
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}
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public int getFirstColumnIndex() {
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return _firstColumnIndex;
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}
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public boolean isIs3d() {
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return _externalSheetIndex > 0;
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}
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public short getExternalSheetIndex() {
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if(_externalSheetIndex < 0) {
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throw new IllegalStateException("external sheet index only available for 3d refs");
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}
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return (short) _externalSheetIndex;
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}
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}
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public ValueEval evaluate(Eval[] args, int srcCellRow, short srcCellCol, HSSFWorkbook workbook, HSSFSheet sheet) {
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if(args.length < 3 || args.length > 5) {
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return ErrorEval.VALUE_INVALID;
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}
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|
||||
|
||||
try {
|
||||
BaseRef baseRef = evaluateBaseRef(args[0]);
|
||||
int rowOffset = evaluateIntArg(args[1], srcCellRow, srcCellCol);
|
||||
int columnOffset = evaluateIntArg(args[2], srcCellRow, srcCellCol);
|
||||
int height = baseRef.getHeight();
|
||||
int width = baseRef.getWidth();
|
||||
switch(args.length) {
|
||||
case 5:
|
||||
width = evaluateIntArg(args[4], srcCellRow, srcCellCol);
|
||||
case 4:
|
||||
height = evaluateIntArg(args[3], srcCellRow, srcCellCol);
|
||||
}
|
||||
// Zero height or width raises #REF! error
|
||||
if(height == 0 || width == 0) {
|
||||
return ErrorEval.REF_INVALID;
|
||||
}
|
||||
LinearOffsetRange rowOffsetRange = new LinearOffsetRange(rowOffset, height);
|
||||
LinearOffsetRange colOffsetRange = new LinearOffsetRange(columnOffset, width);
|
||||
return createOffset(baseRef, rowOffsetRange, colOffsetRange, workbook, sheet);
|
||||
} catch (EvalEx e) {
|
||||
return e.getError();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
private static AreaEval createOffset(BaseRef baseRef,
|
||||
LinearOffsetRange rowOffsetRange, LinearOffsetRange colOffsetRange,
|
||||
HSSFWorkbook workbook, HSSFSheet sheet) throws EvalEx {
|
||||
|
||||
LinearOffsetRange rows = rowOffsetRange.normaliseAndTranslate(baseRef.getFirstRowIndex());
|
||||
LinearOffsetRange cols = colOffsetRange.normaliseAndTranslate(baseRef.getFirstColumnIndex());
|
||||
|
||||
if(rows.isOutOfBounds(0, LAST_VALID_ROW_INDEX)) {
|
||||
throw new EvalEx(ErrorEval.REF_INVALID);
|
||||
}
|
||||
if(cols.isOutOfBounds(0, LAST_VALID_COLUMN_INDEX)) {
|
||||
throw new EvalEx(ErrorEval.REF_INVALID);
|
||||
}
|
||||
if(baseRef.isIs3d()) {
|
||||
Area3DPtg a3dp = new Area3DPtg(rows.getFirstIndex(), rows.getLastIndex(),
|
||||
cols.getFirstIndex(), cols.getLastIndex(),
|
||||
false, false, false, false,
|
||||
baseRef.getExternalSheetIndex());
|
||||
return HSSFFormulaEvaluator.evaluateArea3dPtg(workbook, a3dp);
|
||||
}
|
||||
|
||||
AreaPtg ap = new AreaPtg(rows.getFirstIndex(), rows.getLastIndex(),
|
||||
cols.getFirstIndex(), cols.getLastIndex(),
|
||||
false, false, false, false);
|
||||
return HSSFFormulaEvaluator.evaluateAreaPtg(sheet, workbook, ap);
|
||||
}
|
||||
|
||||
|
||||
private static BaseRef evaluateBaseRef(Eval eval) throws EvalEx {
|
||||
|
||||
if(eval instanceof RefEval) {
|
||||
return new BaseRef((RefEval)eval);
|
||||
}
|
||||
if(eval instanceof AreaEval) {
|
||||
return new BaseRef((AreaEval)eval);
|
||||
}
|
||||
if (eval instanceof ErrorEval) {
|
||||
throw new EvalEx((ErrorEval) eval);
|
||||
}
|
||||
throw new EvalEx(ErrorEval.VALUE_INVALID);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* OFFSET's numeric arguments (2..5) have similar processing rules
|
||||
*/
|
||||
private static int evaluateIntArg(Eval eval, int srcCellRow, short srcCellCol) throws EvalEx {
|
||||
|
||||
double d = evaluateDoubleArg(eval, srcCellRow, srcCellCol);
|
||||
return convertDoubleToInt(d);
|
||||
}
|
||||
|
||||
/**
|
||||
* Fractional values are silently truncated by Excel.
|
||||
* Truncation is toward negative infinity.
|
||||
*/
|
||||
/* package */ static int convertDoubleToInt(double d) {
|
||||
// Note - the standard java type conversion from double to int truncates toward zero.
|
||||
// but Math.floor() truncates toward negative infinity
|
||||
return (int)Math.floor(d);
|
||||
}
|
||||
|
||||
|
||||
private static double evaluateDoubleArg(Eval eval, int srcCellRow, short srcCellCol) throws EvalEx {
|
||||
ValueEval ve = evaluateSingleValue(eval, srcCellRow, srcCellCol);
|
||||
|
||||
if (ve instanceof NumericValueEval) {
|
||||
return ((NumericValueEval) ve).getNumberValue();
|
||||
}
|
||||
if (ve instanceof StringEval) {
|
||||
StringEval se = (StringEval) ve;
|
||||
Double d = parseDouble(se.getStringValue());
|
||||
if(d == null) {
|
||||
throw new EvalEx(ErrorEval.VALUE_INVALID);
|
||||
}
|
||||
return d.doubleValue();
|
||||
}
|
||||
if (ve instanceof BoolEval) {
|
||||
// in the context of OFFSET, booleans resolve to 0 and 1.
|
||||
if(((BoolEval) ve).getBooleanValue()) {
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
throw new RuntimeException("Unexpected eval type (" + ve.getClass().getName() + ")");
|
||||
}
|
||||
|
||||
private static Double parseDouble(String s) {
|
||||
// TODO - find a home for this method
|
||||
// TODO - support various number formats: sign char, dollars, commas
|
||||
// OFFSET and COUNTIF seem to handle these
|
||||
return Countif.parseDouble(s);
|
||||
}
|
||||
|
||||
private static ValueEval evaluateSingleValue(Eval eval, int srcCellRow, short srcCellCol) throws EvalEx {
|
||||
if(eval instanceof RefEval) {
|
||||
return ((RefEval)eval).getInnerValueEval();
|
||||
}
|
||||
if(eval instanceof AreaEval) {
|
||||
return chooseSingleElementFromArea((AreaEval)eval, srcCellRow, srcCellCol);
|
||||
}
|
||||
if (eval instanceof ValueEval) {
|
||||
return (ValueEval) eval;
|
||||
}
|
||||
throw new RuntimeException("Unexpected eval type (" + eval.getClass().getName() + ")");
|
||||
}
|
||||
|
||||
// TODO - this code seems to get repeated a bit
|
||||
private static ValueEval chooseSingleElementFromArea(AreaEval ae, int srcCellRow, short srcCellCol) throws EvalEx {
|
||||
if (ae.isColumn()) {
|
||||
if (ae.isRow()) {
|
||||
return ae.getValues()[0];
|
||||
}
|
||||
if (!ae.containsRow(srcCellRow)) {
|
||||
throw new EvalEx(ErrorEval.VALUE_INVALID);
|
||||
}
|
||||
return ae.getValueAt(srcCellRow, ae.getFirstColumn());
|
||||
}
|
||||
if (!ae.isRow()) {
|
||||
throw new EvalEx(ErrorEval.VALUE_INVALID);
|
||||
}
|
||||
if (!ae.containsColumn(srcCellCol)) {
|
||||
throw new EvalEx(ErrorEval.VALUE_INVALID);
|
||||
}
|
||||
return ae.getValueAt(ae.getFirstRow(), srcCellCol);
|
||||
}
|
||||
}
|
||||
|
||||
@ -25,7 +25,7 @@ import org.apache.poi.hssf.record.formula.eval.NumberEval;
|
||||
import org.apache.poi.hssf.record.formula.eval.RefEval;
|
||||
|
||||
/**
|
||||
* Implementation for Excel COLUMNS function.
|
||||
* Implementation for Excel ROWS function.
|
||||
*
|
||||
* @author Josh Micich
|
||||
*/
|
||||
|
||||
@ -74,6 +74,7 @@ import org.apache.poi.hssf.record.formula.eval.EqualEval;
|
||||
import org.apache.poi.hssf.record.formula.eval.ErrorEval;
|
||||
import org.apache.poi.hssf.record.formula.eval.Eval;
|
||||
import org.apache.poi.hssf.record.formula.eval.FuncVarEval;
|
||||
import org.apache.poi.hssf.record.formula.eval.FunctionEval;
|
||||
import org.apache.poi.hssf.record.formula.eval.GreaterEqualEval;
|
||||
import org.apache.poi.hssf.record.formula.eval.GreaterThanEval;
|
||||
import org.apache.poi.hssf.record.formula.eval.LessEqualEval;
|
||||
@ -91,7 +92,6 @@ import org.apache.poi.hssf.record.formula.eval.SubtractEval;
|
||||
import org.apache.poi.hssf.record.formula.eval.UnaryMinusEval;
|
||||
import org.apache.poi.hssf.record.formula.eval.UnaryPlusEval;
|
||||
import org.apache.poi.hssf.record.formula.eval.ValueEval;
|
||||
import org.apache.poi.hssf.usermodel.HSSFSheet;
|
||||
|
||||
/**
|
||||
* @author Amol S. Deshmukh < amolweb at ya hoo dot com >
|
||||
@ -379,7 +379,7 @@ public class HSSFFormulaEvaluator {
|
||||
Stack stack = new Stack();
|
||||
for (int i = 0, iSize = ptgs.length; i < iSize; i++) {
|
||||
|
||||
// since we dont know how to handle these yet :(
|
||||
// since we don't know how to handle these yet :(
|
||||
if (ptgs[i] instanceof ControlPtg) { continue; }
|
||||
if (ptgs[i] instanceof MemErrPtg) { continue; }
|
||||
if (ptgs[i] instanceof MissingArgPtg) { continue; }
|
||||
@ -405,7 +405,7 @@ public class HSSFFormulaEvaluator {
|
||||
Eval p = (Eval) stack.pop();
|
||||
ops[j] = p;
|
||||
}
|
||||
Eval opresult = operation.evaluate(ops, srcRowNum, srcColNum);
|
||||
Eval opresult = invokeOperation(operation, ops, srcRowNum, srcColNum, workbook, sheet);
|
||||
stack.push(opresult);
|
||||
}
|
||||
else if (ptgs[i] instanceof ReferencePtg) {
|
||||
@ -428,6 +428,54 @@ public class HSSFFormulaEvaluator {
|
||||
}
|
||||
else if (ptgs[i] instanceof AreaPtg) {
|
||||
AreaPtg ap = (AreaPtg) ptgs[i];
|
||||
AreaEval ae = evaluateAreaPtg(sheet, workbook, ap);
|
||||
stack.push(ae);
|
||||
}
|
||||
else if (ptgs[i] instanceof Area3DPtg) {
|
||||
Area3DPtg a3dp = (Area3DPtg) ptgs[i];
|
||||
AreaEval ae = evaluateArea3dPtg(workbook, a3dp);
|
||||
stack.push(ae);
|
||||
}
|
||||
else {
|
||||
Eval ptgEval = getEvalForPtg(ptgs[i]);
|
||||
stack.push(ptgEval);
|
||||
}
|
||||
}
|
||||
|
||||
ValueEval value = ((ValueEval) stack.pop());
|
||||
if (value instanceof RefEval) {
|
||||
RefEval rv = (RefEval) value;
|
||||
return rv.getInnerValueEval();
|
||||
}
|
||||
if (value instanceof AreaEval) {
|
||||
AreaEval ae = (AreaEval) value;
|
||||
if (ae.isRow()) {
|
||||
if(ae.isColumn()) {
|
||||
return ae.getValues()[0];
|
||||
}
|
||||
return ae.getValueAt(ae.getFirstRow(), srcColNum);
|
||||
}
|
||||
if (ae.isColumn()) {
|
||||
return ae.getValueAt(srcRowNum, ae.getFirstColumn());
|
||||
}
|
||||
return ErrorEval.VALUE_INVALID;
|
||||
}
|
||||
return value;
|
||||
}
|
||||
|
||||
private static Eval invokeOperation(OperationEval operation, Eval[] ops, int srcRowNum, short srcColNum,
|
||||
HSSFWorkbook workbook, HSSFSheet sheet) {
|
||||
|
||||
if(operation instanceof FunctionEval) {
|
||||
FunctionEval fe = (FunctionEval) operation;
|
||||
if(fe.isFreeRefFunction()) {
|
||||
return fe.getFreeRefFunction().evaluate(ops, srcRowNum, srcColNum, workbook, sheet);
|
||||
}
|
||||
}
|
||||
return operation.evaluate(ops, srcRowNum, srcColNum);
|
||||
}
|
||||
|
||||
public static AreaEval evaluateAreaPtg(HSSFSheet sheet, HSSFWorkbook workbook, AreaPtg ap) {
|
||||
short row0 = ap.getFirstRow();
|
||||
short col0 = ap.getFirstColumn();
|
||||
short row1 = ap.getLastRow();
|
||||
@ -450,10 +498,10 @@ public class HSSFFormulaEvaluator {
|
||||
}
|
||||
}
|
||||
AreaEval ae = new Area2DEval(ap, values);
|
||||
stack.push(ae);
|
||||
return ae;
|
||||
}
|
||||
else if (ptgs[i] instanceof Area3DPtg) {
|
||||
Area3DPtg a3dp = (Area3DPtg) ptgs[i];
|
||||
|
||||
public static AreaEval evaluateArea3dPtg(HSSFWorkbook workbook, Area3DPtg a3dp) {
|
||||
short row0 = a3dp.getFirstRow();
|
||||
short col0 = a3dp.getFirstColumn();
|
||||
short row1 = a3dp.getLastRow();
|
||||
@ -478,30 +526,10 @@ public class HSSFFormulaEvaluator {
|
||||
}
|
||||
}
|
||||
AreaEval ae = new Area3DEval(a3dp, values);
|
||||
stack.push(ae);
|
||||
}
|
||||
else {
|
||||
Eval ptgEval = getEvalForPtg(ptgs[i]);
|
||||
stack.push(ptgEval);
|
||||
}
|
||||
}
|
||||
ValueEval value = ((ValueEval) stack.pop());
|
||||
if (value instanceof RefEval) {
|
||||
RefEval rv = (RefEval) value;
|
||||
value = rv.getInnerValueEval();
|
||||
}
|
||||
else if (value instanceof AreaEval) {
|
||||
AreaEval ae = (AreaEval) value;
|
||||
if (ae.isRow())
|
||||
value = ae.getValueAt(ae.getFirstRow(), srcColNum);
|
||||
else if (ae.isColumn())
|
||||
value = ae.getValueAt(srcRowNum, ae.getFirstColumn());
|
||||
else
|
||||
value = ErrorEval.VALUE_INVALID;
|
||||
}
|
||||
return value;
|
||||
return ae;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* returns the OperationEval concrete impl instance corresponding
|
||||
* to the suplied operationPtg
|
||||
|
||||
@ -38,6 +38,7 @@ public final class AllIndividualFunctionEvaluationTests {
|
||||
result.addTestSuite(TestMid.class);
|
||||
result.addTestSuite(TestMathX.class);
|
||||
result.addTestSuite(TestMatch.class);
|
||||
result.addTestSuite(TestOffset.class);
|
||||
result.addTestSuite(TestRowCol.class);
|
||||
result.addTestSuite(TestSumproduct.class);
|
||||
result.addTestSuite(TestStatsLib.class);
|
||||
|
||||
@ -0,0 +1,92 @@
|
||||
/* ====================================================================
|
||||
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.poi.hssf.record.formula.functions;
|
||||
|
||||
import junit.framework.TestCase;
|
||||
|
||||
import org.apache.poi.hssf.record.formula.functions.Offset.LinearOffsetRange;
|
||||
|
||||
/**
|
||||
* Tests for OFFSET function implementation
|
||||
*
|
||||
* @author Josh Micich
|
||||
*/
|
||||
public final class TestOffset extends TestCase {
|
||||
|
||||
|
||||
private static void confirmDoubleConvert(double doubleVal, int expected) {
|
||||
assertEquals(expected, Offset.convertDoubleToInt(doubleVal));
|
||||
}
|
||||
/**
|
||||
* Excel's double to int conversion (for function 'OFFSET()') behaves more like Math.floor().
|
||||
* Note - negative values are not symmetrical
|
||||
*/
|
||||
public void testDoubleConversion() {
|
||||
|
||||
confirmDoubleConvert(100.09, 100);
|
||||
confirmDoubleConvert(100.01, 100);
|
||||
confirmDoubleConvert(100.00, 100);
|
||||
confirmDoubleConvert(99.99, 99);
|
||||
|
||||
confirmDoubleConvert(+2.01, +2);
|
||||
confirmDoubleConvert(+2.00, +2);
|
||||
confirmDoubleConvert(+1.99, +1);
|
||||
confirmDoubleConvert(+1.01, +1);
|
||||
confirmDoubleConvert(+1.00, +1);
|
||||
confirmDoubleConvert(+0.99, 0);
|
||||
confirmDoubleConvert(+0.01, 0);
|
||||
confirmDoubleConvert( 0.00, 0);
|
||||
confirmDoubleConvert(-0.01, -1);
|
||||
confirmDoubleConvert(-0.99, -1);
|
||||
confirmDoubleConvert(-1.00, -1);
|
||||
confirmDoubleConvert(-1.01, -2);
|
||||
confirmDoubleConvert(-1.99, -2);
|
||||
confirmDoubleConvert(-2.00, -2);
|
||||
confirmDoubleConvert(-2.01, -3);
|
||||
}
|
||||
|
||||
public void testLinearOffsetRange() {
|
||||
LinearOffsetRange lor;
|
||||
|
||||
lor = new LinearOffsetRange(3, 2);
|
||||
assertEquals(3, lor.getFirstIndex());
|
||||
assertEquals(4, lor.getLastIndex());
|
||||
lor = lor.normaliseAndTranslate(0); // expected no change
|
||||
assertEquals(3, lor.getFirstIndex());
|
||||
assertEquals(4, lor.getLastIndex());
|
||||
|
||||
lor = lor.normaliseAndTranslate(5);
|
||||
assertEquals(8, lor.getFirstIndex());
|
||||
assertEquals(9, lor.getLastIndex());
|
||||
|
||||
// negative length
|
||||
|
||||
lor = new LinearOffsetRange(6, -4).normaliseAndTranslate(0);
|
||||
assertEquals(3, lor.getFirstIndex());
|
||||
assertEquals(6, lor.getLastIndex());
|
||||
|
||||
|
||||
// bounds checking
|
||||
lor = new LinearOffsetRange(0, 100);
|
||||
assertFalse(lor.isOutOfBounds(0, 16383));
|
||||
lor = lor.normaliseAndTranslate(16300);
|
||||
assertTrue(lor.isOutOfBounds(0, 16383));
|
||||
assertFalse(lor.isOutOfBounds(0, 65535));
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user