public static PlacementTypeUnmarshaller GetInstance()
        {
            if (instance == null)
            {
                instance = new PlacementTypeUnmarshaller();
            }

            return(instance);
        }
        public JobFlowInstancesDetail Unmarshall(UnmarshallerContext context)
        {
            JobFlowInstancesDetail jobFlowInstancesDetail = new JobFlowInstancesDetail();
            int originalDepth = context.CurrentDepth;
            int targetDepth   = originalDepth + 1;

            if (context.IsStartOfDocument)
            {
                targetDepth += 2;
            }

            while (context.Read())
            {
                if (context.IsStartElement || context.IsAttribute)
                {
                    if (context.TestExpression("MasterInstanceType", targetDepth))
                    {
                        jobFlowInstancesDetail.MasterInstanceType = StringUnmarshaller.GetInstance().Unmarshall(context);

                        continue;
                    }
                    if (context.TestExpression("MasterPublicDnsName", targetDepth))
                    {
                        jobFlowInstancesDetail.MasterPublicDnsName = StringUnmarshaller.GetInstance().Unmarshall(context);

                        continue;
                    }
                    if (context.TestExpression("MasterInstanceId", targetDepth))
                    {
                        jobFlowInstancesDetail.MasterInstanceId = StringUnmarshaller.GetInstance().Unmarshall(context);

                        continue;
                    }
                    if (context.TestExpression("SlaveInstanceType", targetDepth))
                    {
                        jobFlowInstancesDetail.SlaveInstanceType = StringUnmarshaller.GetInstance().Unmarshall(context);

                        continue;
                    }
                    if (context.TestExpression("InstanceCount", targetDepth))
                    {
                        jobFlowInstancesDetail.InstanceCount = IntUnmarshaller.GetInstance().Unmarshall(context);

                        continue;
                    }
                    if (context.TestExpression("InstanceGroups/member", targetDepth))
                    {
                        jobFlowInstancesDetail.InstanceGroups.Add(InstanceGroupDetailUnmarshaller.GetInstance().Unmarshall(context));

                        continue;
                    }
                    if (context.TestExpression("NormalizedInstanceHours", targetDepth))
                    {
                        jobFlowInstancesDetail.NormalizedInstanceHours = IntUnmarshaller.GetInstance().Unmarshall(context);

                        continue;
                    }
                    if (context.TestExpression("Ec2KeyName", targetDepth))
                    {
                        jobFlowInstancesDetail.Ec2KeyName = StringUnmarshaller.GetInstance().Unmarshall(context);

                        continue;
                    }
                    if (context.TestExpression("Placement", targetDepth))
                    {
                        jobFlowInstancesDetail.Placement = PlacementTypeUnmarshaller.GetInstance().Unmarshall(context);

                        continue;
                    }
                    if (context.TestExpression("KeepJobFlowAliveWhenNoSteps", targetDepth))
                    {
                        jobFlowInstancesDetail.KeepJobFlowAliveWhenNoSteps = BoolUnmarshaller.GetInstance().Unmarshall(context);

                        continue;
                    }
                    if (context.TestExpression("HadoopVersion", targetDepth))
                    {
                        jobFlowInstancesDetail.HadoopVersion = StringUnmarshaller.GetInstance().Unmarshall(context);

                        continue;
                    }
                }
                else if (context.IsEndElement && context.CurrentDepth < originalDepth)
                {
                    return(jobFlowInstancesDetail);
                }
            }

            return(jobFlowInstancesDetail);
        }