Trouble generating url for s3 in script snap

hi all, i m using script snap to generate presigned url for an object in s3 .

Failure: ReferenceError: “AmazonS3Client” is not defined, Reason: Script failed with the following error: ReferenceError: “AmazonS3Client” is not defined, Resolution: Fix the errors in the script file:

following is the script :

// Ensure compatibility with both JDK 7 and 8 JSR-223 Script Engines
try { load(“nashorn:mozilla_compat.js”); } catch(e) { }

//Import the interface required by the Script snap.
importPackage(com.snaplogic.scripting.language);

// Import the Java utility classes.
importPackage(java.util);
importPackage(java.io.IOException);
importPackage(java.net.URL);

importPackage(com.amazonaws.AmazonClientException);
importPackage(com.amazonaws.AmazonServiceException);
importPackage(com.amazonaws.HttpMethod);
importPackage(com.amazonaws.auth.BasicAWSCredentials);
importPackage(com.amazonaws.services.s3.AmazonS3);
importPackage(com.amazonaws.services.s3.AmazonS3Client);
importPackage(com.amazonaws.services.s3.model.GeneratePresignedUrlRequest);

/**

  • Create an object that implements the methods defined by the “ScriptHook”

  • interface. We’ll be passing this object to the constructor for the

  • ScriptHook interface.
    /
    var impl = {
    /

    • These variables (input, output, error, log) are defined by the
    • ExecuteScript snap when evaluating this script.
      */
      input : input,
      output : output,
      error : error,
      log : log,

    /**

    • The “execute()” method is called once when the pipeline is started

    • and allowed to process its inputs or just send data to its outputs.

    • Exceptions are automatically caught and sent to the error view.
      */
      execute : function () {
      this.log.info(“Executing Transform Script”);
      while (this.input.hasNext()) {

           // Read the next document, wrap it in a map and write out the wrapper
           var doc = this.input.next();
           //var credentials = new BasicAWSCredentials(aws_id,secret_key);
           var client = new AmazonS3Client( credentials );
           var request = new GeneratePresignedUrlRequest( "snaplogic01-dev", "sample.pdf", HttpMethod.PUT);
           request.setExpiration( new Date( System.currentTimeMillis() + (120 * 60 * 1000) ));
           var wrapper = new java.util.HashMap();
           wrapper.put("original", doc);
           wrapper.put("url",client.generatePresignedUrl( request ).toString());
           this.output.write(doc, wrapper);
           this.log.info("Transform Script finished");
      

      }
      }
      };

/**

  • The Script Snap will look for a ScriptHook object in the “hook”
  • variable. The snap will then call the hook’s “execute” method.
    */
    var hook = new com.snaplogic.scripting.language.ScriptHook(impl);