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/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache POI" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Apache POI", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
/*
* 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.InputStream;
import java.io.IOException;
import java.io.ByteArrayInputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
//import java.io.*;
import java.util.List;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.util.LittleEndian;
import org.apache.poi.util.HexDump;
import org.apache.poi.hssf.record.*;
import org.apache.poi.hssf.record.formula.*;
import org.apache.poi.hssf.model.*;
import org.apache.poi.hssf.usermodel.*;
/**
* FormulaViewer - finds formulas in a BIFF8 file and attempts to read them/display
* data from them. Only works if Formulas are enabled in "RecordFactory"
* @author andy
* @author Avik
*/
public class FormulaViewer
{
private String file;
/** Creates new FormulaViewer */
public FormulaViewer()
{
}
/**
* Method run
*
*
* @exception Exception
*
*/
public void run()
throws Exception
{
POIFSFileSystem fs =
new POIFSFileSystem(new FileInputStream(file));
List records =
RecordFactory
.createRecords(fs.createDocumentInputStream("Workbook"));
for (int k = 0; k < records.size(); k++)
{
Record record = ( Record ) records.get(k);
if (record.getSid() == FormulaRecord.sid)
{
parseFormulaRecord(( FormulaRecord ) record);
}
}
}
/**
* Method parseFormulaRecord
*
*
* @param record
*
*/
public void parseFormulaRecord(FormulaRecord record)
{
System.out.println("==============================");
System.out.print("row = " + record.getRow());
System.out.println(", col = " + record.getColumn());
System.out.println("value = " + record.getValue());
System.out.print("xf = " + record.getXFIndex());
System.out.print(", number of ptgs = "
+ record.getNumberOfExpressionTokens());
System.out.println(", options = " + record.getOptions());
System.out.println("RPN List = "+formulaString(record));
System.out.println("Formula text = "+ composeForumla(record));
}
private String formulaString(FormulaRecord record) {
StringBuffer formula = new StringBuffer("=");
int numptgs = record.getNumberOfExpressionTokens();
List tokens = record.getParsedExpression();
StringBuffer buf = new StringBuffer();
for (int i=0;i<numptgs;i++) {
buf.append( ( (Ptg)tokens.get(i)).toFormulaString());
buf.append(' ');
}
return buf.toString();
}
private String composeForumla(FormulaRecord record)
{
return FormulaParser.toFormulaString(record.getParsedExpression());
}
/**
* Method setFile
*
*
* @param file
*
*/
public void setFile(String file)
{
this.file = file;
}
/**
* Method main
*
* pass me a filename and I'll try and parse the formulas from it
*
* @param args pass one argument with the filename or --help
*
*/
public static void main(String args[])
{
if ((args == null) || (args.length != 1)
|| args[ 0 ].equals("--help"))
{
System.out.println(
"FormulaViewer .8 proof that the devil lies in the details (or just in BIFF8 files in general)");
System.out.println("usage: Give me a big fat file name");
}
else
{
try
{
FormulaViewer viewer = new FormulaViewer();
viewer.setFile(args[ 0 ]);
viewer.run();
}
catch (Exception e)
{
System.out.println("Whoops!");
e.printStackTrace();
}
}
}
}
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