Getting Object tag value in AWS S3 - scala

Question

I am using scala to get information about my objects that are in S3 I am intersted in getting each object I have inside S3 Bucket his tag value so far I have accomplished this code to get me information about my objects but did not succeeded in getting its tagging value: I used this code in scala:
def retrieveObjectTags(keyName: String): Unit ={
try {
println("Listing objects")
val req: ListObjectsV2Request =
new ListObjectsV2Request().withBucketName(bucketName).withMaxKeys(2)
var result: ListObjectsV2Result = null
do {
result = client.listObjectsV2(req)
for (objectSummary <- result.getObjectSummaries) {
println(
" - " + objectSummary.getKey + " " + "(size = " + objectSummary.getSize +
")")
println(objectSummary.getETag)
}
println("Next Continuation Token : " + result.getNextContinuationToken)
req.setContinuationToken(result.getNextContinuationToken)
} while (result.isTruncated == true);
}catch {
case ase: AmazonServiceException => {
println(
"Caught an AmazonServiceException, " + "which means your request made it " +
"to Amazon S3, but was rejected with an error response " +
"for some reason.")
println("Error Message: " + ase.getMessage)
println("HTTP Status Code: " + ase.getStatusCode)
println("AWS Error Code: " + ase.getErrorCode)
println("Error Type: " + ase.getErrorType)
println("Request ID: " + ase.getRequestId)
}
case ace: AmazonClientException => {
println(
"Caught an AmazonClientException, " + "which means the client encountered " +
"an internal error while trying to communicate" +
" with S3, " +
"such as not being able to access the network.")
println("Error Message: " + ace.getMessage)
}
}
// val getTaggingRequest = new GetObjectTaggingRequest(bucketName,keyName)
// var getTagResult = client.getObjectTagging(getTaggingRequest)
//println(getTaggingRequest)
var tag: Tag = new Tag()
println("tag name:" + tag.getValue)
}
as for the remarked lines I have encounter a problem with it, what other way I can use to solve this problem?