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Support Article

Unabe to download the file from server path

SA-10870

Summary



User is unable to download a file and gets empty file from server path.
Pega uses
pega_rules_default.downloadFile(com.pega.pegarules.pub.util.StringUtils.concat(com.pega.pegarules.pub.util.StringUtils.ASIS, filePath, fileName), tools, bDeletefile); function to download the file.


Error Messages



Not Applicable.

Steps to Reproduce



Try to download a file from the server path.

Root Cause



User has configured a button where onclick calls an activity to download a file. On click of the button, the file is downloaded but the contents of the file are empty.

Resolution



Following is the local change for the java step of the activity:

/*The File Path along with the name to download need to be mentioned here */
String filePath = tools.getParamValue("FilePath");
java.io.FileInputStream fileInputStream=null;
java.io.File file = new java.io.File(filePath);
byte[] bFile = new byte[(int) file.length()];
try {
                    fileInputStream = new java.io.FileInputStream(file);
                    fileInputStream.read(bFile);
                    fileInputStream.close();
}
catch(Exception e){
e.printStackTrace();
}
 
/* Change the name of the Test.docx to the actual file name that needs to be downloaded with extension.*/
String sErrorMessage = tools.sendFile(bFile, "Test.docx", false, null, true);
if (sErrorMessage != null){                                                          
                tools.getThread().getThreadPage().putString("pyXMLStream", sErrorMessage);
}

 

Published June 30, 2015 - Updated October 8, 2020

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