used amazon s3 client builder

VerteilteSysteme-Examples/src/verteiltesysteme/aws/TCPTimeCounterRESTService.java

@@ -4,7 +4,6 @@ package verteiltesysteme.aws;
 import javax.ws.rs.*;
 import javax.ws.rs.core.MediaType;
 
-import com.amazonaws.regions.Regions;
 import com.amazonaws.services.s3.AmazonS3;
 import com.amazonaws.services.s3.AmazonS3ClientBuilder;
 
@@ -17,15 +16,13 @@ public class TCPTimeCounterRESTService {
 
 	private Long getCounter() {
 		// Verbindung zu S3
-		AmazonS3 s3Client = AmazonS3ClientBuilder.defaultClient();
-		s3Client.setRegion(com.amazonaws.regions.Region.getRegion(Regions.EU_CENTRAL_1));
+		AmazonS3 s3Client = AmazonS3ClientBuilder.standard().withRegion(bucketRegion).build();
 		return new Long(s3Client.getObjectAsString(bucketName, bucketRegion));
 	}
 
 	private boolean setCounter(Long counter) {
 		// Verbindung zu S3
-		AmazonS3 s3Client = AmazonS3ClientBuilder.defaultClient();
-		s3Client.setRegion(com.amazonaws.regions.Region.getRegion(Regions.EU_CENTRAL_1));
+		AmazonS3 s3Client = AmazonS3ClientBuilder.standard().withRegion(bucketRegion).build();
 		s3Client.putObject(bucketName, bucketRegion, new Long(counter).toString());
 		return true;
 	}