Hi Jayachandan,

Below are the steps to read the image file and stores the base64 encoded stream to a string propety.

1. Use any page for "Page name" field on Service tab of Service File rule form(For ex. fileListenerPage of your work class).
2. Use “File at a time” for Processing Mode and “text only” for Data Mode fields on Method tab. Set Character Encoding to UTF-8.
3. Map the file stream to any text clipboard property(For example fileListenerPage .test).
4. In the Service Activity add a Java step and use below code.

                try
{
                java.io.ByteArrayInputStream inByteStream = new java.io.ByteArrayInputStream(tools.findPage("fileListenerPage").getString("test").getBytes(java.nio.charset.StandardCharsets.UTF_8));
 
                                                //new java.io.ByteArrayInputStream(buffer);
 
                java.io.InputStream inStream = new java.io.BufferedInputStream(inByteStream);
 
                java.io.ByteArrayOutputStream outByteStream = new java.io.ByteArrayOutputStream();
                java.io.OutputStream outStream = new java.io.BufferedOutputStream(outByteStream);
 
                java.io.OutputStream encStream = Base64Util.encode(outStream);
                java.io.DataOutputStream doStream = new java.io.DataOutputStream(encStream);
 
                byte[] buffer2 = new byte[4096];
                int len;
                while(( len = inStream.read(buffer2)) != -1)
                {
                                doStream.write(buffer2, 0, len);              
                }
 
                inStream.close();
                doStream.flush();
                outStream.flush();
                strFileData = outByteStream.toString(); // This sets the strem to a string property.
                doStream.close();
                outStream.close();
 
          //      ClipboardPage cpNFAttach = tools.findPage("AFilePage", false);
              //  cpNFAttach.putString("pyAttachStream", strFileData);
 
                // close the fos and delete the file
                fos.close();
                // fileName.delete();
}
catch (Exception e)
{
               
}
 

Refer this article as well, it also contains detailed explanation with screen-prints :- https://collaborate.pega.com/question/exception-while-reading-image

Part 2 of your question:-

How to save image?

Refer this link :- https://docs-previous.pega.com/how-and-when-save-images-data-rather-rules

Kindly notify and mark the reply as "Answered/Helpful", if it helps you.

Regards,

Asif

Hi Jayachandra,

I have got additional information from this mesh post :-  https://mesh.pega.com/docs/DOC-107771

As this is a mesh post, you may not be able to view it. So putting content down as well:-

Findings by observing current implementation of Operator image upload feature:
1. Mechanics for uploading an image file to PRPC application server's file system.
     - OOTB control "FilePath" and section "pzUploadFileWithBrowseOption" do the trick.
     - The file will be uploaded to "{pega_tmp}\StaticContent\global\ServiceExport" directory.
     - The property pxRequestor.pyFileUpload holds the Full path of the uploaded file.
 
2. Mechanics for saving uploaded image file into PRPC database.
     - OOTB function "@Utilities.uploadFile(boolean )" reads uploaded file from file system into Memory. The contents of uploaded file are converted to base64 encrypted text.
     - OOTB class Data-Content-Image can be used to save base64 encrypted text to the database. ".pyFileName" and ".pyFileType" are used to hold file name and file extension respectively.
 
3. Mechanics for retrieve and cache image file from PRPC database to PRPC application server's file system.
     - OOTB class Data-Content-Image has a property ".pyFilePath" which holds the relative directory path with reference to the direcotry "{pega_tmp}\StaticContent\dataContent\Image".
     - OOTB JSP tag <pega:ContentURL> will retrieve record of Data-Content-Image from database then restore and cache the file under the directory "{pega_tmp}\StaticContent\dataContent\Image\{.pyFilePath}"

4. Mechanics for display image file on the screen.
     - Custom control is needed to display cached image under the directory "{pega_tmp}\StaticContent\dataContent\Image\{.pyFilePath}"

You can also refer to the code in the "ImageSection" rule. It contains the implementation of upload of pic and contains path.

Kindly notify, if it helps.

Regards,

Asif