Hi All,

I have a requirement of selecting some of the documents from a table and using a "Download" button zipping it and download it. I was referring the code given in below post:

https://collaborate.pega.com/question/how-create-zip-archive-and-attach-case - 

but here not sure how to send logical_zip file back to browser neither sure where tools.sendFile is sending the file back. Please help me understand this as I am a new Pega developer. I tried putting up the logs in addition but not sure if zip file is getting created properly. Below is the code which I have tried using:

java.io.ByteArrayOutputStream baos = new java.io.ByteArrayOutputStream();   org.apache.commons.compress.archivers.ArchiveOutputStream logical_zip = null;   try{   logical_zip = new org.apache.commons.compress.archivers.ArchiveStreamFactory().createArchiveOutputStream("zip", baos);   } catch(Exception e) {  throw new PRRuntimeException("Cannot initialize archive");   }       ClipboardProperty cpResults = tools.findPage("dragDropFileUpload").getProperty("pxResults");   int i = 1;   for (Iterator instPgList = cpResults.iterator(); instPgList.hasNext();) {       ClipboardProperty objOneRow = (ClipboardProperty) instPgList.next();   ClipboardPage objOneRowPage = objOneRow.getPageValue();   oLog.infoForced("FileName Page: "+ objOneRowPage );       String strOutputPRFileName = objOneRowPage.getProperty("pyAttachStream").getStringValue();   if(strOutputPRFileName != "")  {     byte [] data = Base64Util.decodeToByteArray(strOutputPRFileName);   String strOutputFileName = objOneRowPage.getProperty("pyFileName").getStringValue();  

  oLog.infoForced("File Stream: "+ strOutputPRFileName);       oLog.infoForced("File Output: "+ strOutputFileName);     PRFile prDestinationFile = new PRFile(strOutputPRFileName);  

PRInputStream prOut = null;      try {          java.util.zip.ZipEntry entry = new java.util.zip.ZipEntry(strOutputFileName);     logical_zip.putArchiveEntry(new  org.apache.commons.compress.archivers.zip.ZipArchiveEntry(strOutputFileName));     logical_zip.write(data);        logical_zip.closeArchiveEntry();        } catch(Exception e) {     System.out.println("Cannot create archive");        throw new PRRuntimeException("Cannot create archive");            }   }   i++;   }   //Send file to client   String s = tools.getLocalizedTextForString("pyCaption","AllDocuments");   HashStringMap aMap = new HashStringMap();   aMap.put("ContentDisposition", "attachment; filename="+s);   aMap.put("ContentType", "application/zip");   try{        logical_zip.finish();      baos.close();   oLog.infoForced("File ZIP: " + s + ".zip");  tools.sendFile(baos.toByteArray(),s+".zip",false,null,true);     logical_zip.close();

        } catch(Exception e) {    throw new PRRuntimeException("Error while sending:"+e.getMessage());   }