@Override
    public DescribeClusterResult describeCluster(DescribeClusterRequest request) {
        request = beforeClientExecution(request);
        return executeDescribeCluster(request);
    }
<p>
Provides cluster-level details including status, hardware and software configuration, VPC settings, and so on.
</p>

@param describeClusterRequest
       This input determines which cluster to describe.
@return Result of the DescribeCluster operation returned by the service.
@throws InternalServerException
        This exception occurs when there is an internal failure in the Amazon EMR service.
@throws InvalidRequestException
        This exception occurs when there is something wrong with user input.
@sample AmazonElasticMapReduce.DescribeCluster
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/elasticmapreduce-2009-03-31/DescribeCluster"
     target="_top">AWS API Documentation</a>
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/AmazonElasticMapReduceClient.java