public static EC2SecurityGroupUnmarshaller GetInstance()
        {
            if (instance == null)
            {
                instance = new EC2SecurityGroupUnmarshaller();
            }

            return(instance);
        }
        public ClusterSecurityGroup Unmarshall(XmlUnmarshallerContext context)
        {
            ClusterSecurityGroup clusterSecurityGroup = new ClusterSecurityGroup();
            int originalDepth = context.CurrentDepth;
            int targetDepth   = originalDepth + 1;

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

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

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

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

                        continue;
                    }
                    if (context.TestExpression("EC2SecurityGroups/EC2SecurityGroup", targetDepth))
                    {
                        clusterSecurityGroup.EC2SecurityGroups.Add(EC2SecurityGroupUnmarshaller.GetInstance().Unmarshall(context));

                        continue;
                    }
                    if (context.TestExpression("IPRanges/IPRange", targetDepth))
                    {
                        clusterSecurityGroup.IPRanges.Add(IPRangeUnmarshaller.GetInstance().Unmarshall(context));

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



            return(clusterSecurityGroup);
        }