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Download Multiple files from External system as ZIP file
How can I achieve to download a zip on to client from the list of the file URLs(received file URLs from external system) on click of a button using java or Java script?
Posted: 7 years ago
These two posts can be of some help.
https://collaborate.pega.com/discussion/production-upgrade-prpc63-sp1-prpc-718
https://collaborate.pega.com/question/how-create-zip-archive-and-attach-case
Posted: 7 years ago
Hi,
I tried with below java code to stream the file data from external system using the File URL and ZIP the files but no luck. Can someone help me to know what is missing here in the code?
//CODE
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Hi,
I tried with below java code to stream the file data from external system using the File URL and ZIP the files but no luck. Can someone help me to know what is missing here in the code?
//CODE
ClipboardPage tmp = tools.getPrimaryPage();
ClipboardProperty MyList= tmp.getProperty("MyList");
String FileData = null;
String MyURL = null;
String MyFile= null;
final int DATA_BLOCK_SIZE = 2048;
int byteCount;
byte[] data;
byte[] buffer = new byte[4096];
java.util.zip.ZipOutputStream zos=null;
java.io.ByteArrayOutputStream fos=null;
//java.io.FileOutputStream fos =null;
try {
for (int i = MyList.size() ; i > 0; i--) {
ClipboardPage row = MyList.getPageValue(i);
MyURL = row.getProperty("FileURL").toString();
MyFile= row.getProperty("FileName").toString();
java.net.URL url = new java.net.URL(MyURL);
java.net.URLConnection uc = (java.net.URLConnection)url.openConnection();
java.io.InputStream inputstream = uc.getInputStream();
fos = new java.io.ByteArrayOutputStream();
zos = new java.util.zip.ZipOutputStream(fos);
java.io.File srcFile = new java.io.File(MyFile+"doc");
java.io.BufferedInputStream fis = new java.io.BufferedInputStream(inputstream, 4096);
zos.putNextEntry(new java.util.zip.ZipEntry(srcFile.getName()));
int length;
while ((length = fis.read(buffer)) > 0) {
zos.write(buffer, 0, length);
}
inputstream.close();
fis.close();
}
zos.close();
byte b [] = fos.toByteArray();
fos.close();
String result=tools.sendFile(b,tools.getParamValue("DownloadFileName"),false,null,true);
} catch(Exception ex) {
oLog.infoForced("EXception" +ex.toString());
}
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