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package data;

import java.util.ArrayList;

import org.apache.log4j.Logger;

import org.apache.poi.ss.usermodel.Cell;

import org.apache.poi.ss.usermodel.Row;

/**

* This class is a container that represents the mapping.xls file

* @author Vortech

public class Mapping

{

static Logger logger = Logger.getLogger(Mapping.class.getName());

ArrayList<MappingRow> _mappings;

public Mapping()

{

_mappings = new ArrayList<MappingRow>();

}

/**

* @param row

* Row from a mapping xls file

* @param xoffset

* first cell (0-based that needs processing from left to right, is

* the variable name)

public void addMappingFromRowSheet(Row row, int xoffset)

{

MappingRow aRow = new MappingRow(row.getRowNum());

aRow._variable = retrieveStringFromCell(row.getCell(xoffset));

logger.info("Reading from mapping: " + aRow._variable);

aRow._unitTemplate = retrieveStringFromCell(row.getCell(xoffset + 1));

aRow._filename = retrieveStringFromCell(row.getCell(xoffset + 2));

String aTypeString = retrieveStringFromCell(row.getCell(xoffset + 3));

try

{

aRow._type = null;

if (aTypeString != null)

{

aRow._type = WorldType.valueOf(aTypeString);

}

catch (IllegalArgumentException e)

{

logger.error("The specified type in the mapping template at (Excel) line: " + aRow._lineno

+ " is not recognized: " + retrieveStringFromCell(row.getCell(xoffset + 3)));

}

aRow._dimensions = parseRange(retrieveStringFromCell(row.getCell(xoffset + 4)));

aRow._fileDimensions = null;

ArrayList<ArrayList<Integer>> aFileDims = parseRange(retrieveStringFromCell(row.getCell(xoffset + 5)));

if (aFileDims != null && aFileDims.size() > 0)

{

aRow._fileDimensions = aFileDims.get(0);

}

aRow._unitFile = retrieveStringFromCell(row.getCell(xoffset + 6));

aRow._conversionFactor = retrieveDoubleFromCell(row.getCell(xoffset + 7));

if (aRow.isValid())

{

_mappings.add(aRow);

}

else

{

logger.error("The mapping for "

+ aRow._variable

+ " at (Excel) line "

+ (aRow._lineno + 1)

+ " is not consistent, the conversion factor is missing or the requested dimensions exceed the file dimensions (row discarded in report generation)!");

}

protected Double retrieveDoubleFromCell(Cell cell)

{

Double aResult = null;

try

{

aResult = new Double(cell.getNumericCellValue());

}

catch (Exception e)

{

// in case of empty numeric cell etc.

logger.info("Error with numeric cell.");

}

return aResult;

}

protected String retrieveStringFromCell(Cell cell)

{

String aResult = null;

try

{

aResult = cell.getStringCellValue();

if (aResult.length() == 0)

{

aResult = null; // discard empty string

}

catch (Exception e)

{

// in case of empty string cell etc.

logger.info("Error with string cell.");

}

return aResult;

}

protected ArrayList<ArrayList<Integer>> parseRange(String iDimensions)

{

ArrayList<ArrayList<Integer>> aResult = new ArrayList<ArrayList<Integer>>();

int aCurrentIndex = 0;

while (iDimensions != null && iDimensions.indexOf('[') != -1)

{

aCurrentIndex = iDimensions.indexOf('[');

int aBlockEnd = iDimensions.indexOf(']');

String s = iDimensions.substring(aCurrentIndex + 1, aBlockEnd);

aResult.add(parseLine(s));

iDimensions = iDimensions.substring(aBlockEnd + 1);

}

return aResult;

}

protected ArrayList<Integer> parseLine(String iNumbers)

{

ArrayList<Integer> aResult = new ArrayList<Integer>();

// vgl. [r] ipv [1,2,r]

String[] aNumberSet = iNumbers.split(",");

for (String aNum : aNumberSet)

{

if (aNum.length() > 0)

{

if (aNum.equals("r"))

{

aResult.add(null);

}

else

{

aResult.add(new Integer(aNum));

}

return aResult;

}

public ArrayList<MappingRow> getRows()

{

return _mappings;

}

public String toString()

{

String s = "Mapping: \r\n";

for (MappingRow r : _mappings)

{

s += r.toString() + "\r\n";

}

s += "\r\n";

return s;

}

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