//char sep = PRFile.separatorChar;
//absolute path to pega temp dir
String pegaTempDir= tools.getSystemSettings().getFSSetting("initialization/explicittempdir", "" , true, false);
//this path starts with "file://web:"
String exportPath= tools.getProperty("pxProcess.pxServiceExportPath").getStringValue();
//create svf directory where we creates csv file
String svfDirPath = pegaTempDir+exportPath.replaceAll("file://web:","")+"svf";
svfDirPath = svfDirPath.replaceAll("\\\\","/");
//oLog.error("svfDir===="+svfDir);
java.io.File svfDir = new java.io.File(svfDirPath);
if(svfDir.exists()==false){
    try{
      svfDir.mkdirs();
    }catch(Exception ex){
      throw ex;
    }  
}

DateTimeUtils dtu = ThreadContainer.get().getDateTimeUtils();

String fileNameParam = tools.getParamValue("FileName");
if(fileNameParam.equals("")){
	fileNameParam = "RecordsToCSV";
}
Boolean appendTimeStamp = tools.getParamAsBoolean(ImmutablePropertyInfo.TYPE_TRUEFALSE,"AppendTimeStampToFileName");

FileName+=fileNameParam;
if(appendTimeStamp){
	FileName+="_";
	FileName+=dtu.getCurrentTimeStamp();
}
FileName+=".csv";
String CSVFilePath = exportPath+"/svf/"+FileName;
PRFile f = new PRFile(CSVFilePath);
try{
 // Create file 
 PROutputStream stream = new PROutputStream(f);
 PRWriter out = new PRWriter(stream, null, false);
 // Bug with Excel reading a file starting with 'ID' as SYLK file. If CSV starts with ID, prepend an empty space.
 if(CSVString.startsWith("ID")){
	CSVString=" "+CSVString;
 }
 out.write(CSVString);
 //Close the output stream
 out.close();
 // CSVFilePath is a relative path starts with file://web:, however we must return absolute path to the csv file.
 tools.putParamValue("CSVFilePath",svfDirPath+"/"+FileName);
 //oLog.error("CSVFilePath===="+svfDirPath+"/"+FileName);
}catch (Exception e) {
 oLog.error("Error writing csv file: " + e.getMessage());
}