/// <summary>
        /// Generate ClusterCreateParameters object for 2.X cluster with only Hadoop.
        /// </summary>
        /// <param name="inputs">Cluster creation parameter inputs.</param>
        /// <returns>The corresponding ClusterCreateParameter object.</returns>
        internal static ClusterCreateParameters Create2XClusterForMapReduceTemplate(HDInsight.ClusterCreateParameters inputs)
        {
            if (inputs == null)
            {
                throw new ArgumentNullException("inputs");
            }

            var cluster = new ClusterCreateParameters { DnsName = inputs.Name, Version = inputs.Version };
            var headnodeRole = new ClusterRole
            {
                FriendlyName = "HeadNodeRole",
                InstanceCount = 2,
                VMSize = inputs.HeadNodeSize.ToVmSize(),
            };
            var workernodeRole = new ClusterRole
            {
                InstanceCount = inputs.ClusterSizeInNodes,
                FriendlyName = "WorkerNodeRole",
                VMSize = VmSize.Large
            };
            var zookeeperRole = new ClusterRole
            {
                InstanceCount = 3,
                FriendlyName = "ZKRole",
                VMSize = VmSize.Small
            };

            cluster.ClusterRoleCollection.Add(headnodeRole);
            cluster.ClusterRoleCollection.Add(workernodeRole);
            cluster.ClusterRoleCollection.Add(zookeeperRole);

            var gateway = new GatewayComponent
            {
                IsEnabled = true,
                RestAuthCredential = new UsernamePasswordCredential { Username = inputs.UserName, Password = inputs.Password }
            };
            cluster.Components.Add(gateway);
            cluster.Location = inputs.Location;

            // Adding MapReduce component
            MapReduceComponent mapReduce = new MapReduceComponent { HeadNodeRole = headnodeRole, WorkerNodeRole = workernodeRole };
            ConfigMapReduceComponent(mapReduce, inputs);
            cluster.Components.Add(mapReduce);

            // Adding Hive component
            HiveComponent hive = new HiveComponent { HeadNodeRole = headnodeRole };
            ConfigHiveComponent(hive, inputs);
            cluster.Components.Add(hive);

            // Adding config action component if needed
            if (inputs.ConfigActions != null && inputs.ConfigActions.Count > 0)
            {
                CustomActionComponent configAction = new CustomActionComponent { HeadNodeRole = headnodeRole, WorkerNodeRole = workernodeRole };
                AddConfigActionComponent(configAction, inputs, headnodeRole, workernodeRole);
                cluster.Components.Add(configAction);
            }

            // Adding Oozie component
            OozieComponent oozie = new OozieComponent { HeadNodeRole = headnodeRole };
            ConfigOozieComponent(oozie, inputs);
            cluster.Components.Add(oozie);

            // Adding Hdfs component
            HdfsComponent hdfs = new HdfsComponent { HeadNodeRole = headnodeRole, WorkerNodeRole = workernodeRole };
            ConfigHdfsComponent(hdfs, inputs);
            cluster.Components.Add(hdfs);

            // Adding HadoopCore component
            HadoopCoreComponent hadoopCore = new HadoopCoreComponent();
            ConfigHadoopCoreComponent(hadoopCore, inputs);
            cluster.Components.Add(hadoopCore);

            ConfigVirtualNetwork(cluster, inputs);

            return cluster;
        }
        private static void PopulateClusterUriAndHttpCredsFromGateway(ClusterDetails clusterDetails, GatewayComponent gateway)
        {
            if (clusterDetails == null)
            {
                throw new ArgumentNullException("clusterDetails");
            }

            if (gateway == null)
            {
                return;
            }

            clusterDetails.ConnectionUrl = gateway.RestUri;
            if (gateway.IsEnabled)
            {
                clusterDetails.HttpUserName = gateway.RestAuthCredential.Username;
                clusterDetails.HttpPassword = gateway.RestAuthCredential.Password;
            }
            else
            {
                clusterDetails.HttpUserName = clusterDetails.HttpPassword = string.Empty;
            }
        }
        /// <summary>
        /// Generate ClusterCreateParameters object for 3.X cluster with only Hadoop.
        /// </summary>
        /// <param name="inputs">Cluster creation parameter inputs.</param>
        /// <returns>The corresponding ClusterCreateParameter object.</returns>
        internal static ClusterCreateParameters Create3XClusterFromMapReduceTemplate(HDInsight.ClusterCreateParametersV2 inputs)
        {
            if (inputs == null)
            {
                throw new ArgumentNullException("inputs");
            }

            var remoteDesktopSettings = (string.IsNullOrEmpty(inputs.RdpUsername))
                ? new RemoteDesktopSettings()
                {
                    IsEnabled = false
                }
                : new RemoteDesktopSettings()
                {
                    IsEnabled = true,
                    AuthenticationCredential = new UsernamePasswordCredential()
                    {
                        Username = inputs.RdpUsername,
                        Password = inputs.RdpPassword
                    },
                    RemoteAccessExpiry = (DateTime)inputs.RdpAccessExpiry
                };

            var cluster = new ClusterCreateParameters
            {
                DnsName = inputs.Name,
                Version = inputs.Version,
            };
            var headnodeRole = new ClusterRole
            {
                FriendlyName = "HeadNodeRole",
                InstanceCount = 2,
                VMSizeAsString = inputs.HeadNodeSize,
                RemoteDesktopSettings = remoteDesktopSettings
            };
            var workernodeRole = new ClusterRole
            {
                InstanceCount = inputs.ClusterSizeInNodes,
                FriendlyName = "WorkerNodeRole",
                VMSizeAsString = inputs.DataNodeSize,
                RemoteDesktopSettings = remoteDesktopSettings
            };
            var zookeeperRole = new ClusterRole
            {
                InstanceCount = 3,
                FriendlyName = "ZKRole",
                VMSizeAsString = inputs.ZookeeperNodeSize ?? VmSize.Small.ToString(),
                RemoteDesktopSettings = remoteDesktopSettings
            };
            cluster.ClusterRoleCollection.Add(headnodeRole);
            cluster.ClusterRoleCollection.Add(workernodeRole);
            cluster.ClusterRoleCollection.Add(zookeeperRole);

            var gateway = new GatewayComponent
                {
                    IsEnabled = true,
                    RestAuthCredential = new UsernamePasswordCredential { Username = inputs.UserName, Password = inputs.Password }
               };
            cluster.Components.Add(gateway);
            cluster.Location = inputs.Location;

            //Add yarn component
            YarnComponent yarn = new YarnComponent { ResourceManagerRole = headnodeRole, NodeManagerRole = workernodeRole, };
            ConfigYarnComponent(yarn, inputs);
            MapReduceApplication mapreduceApp = new MapReduceApplication();
            ConfigMapReduceApplication(mapreduceApp, inputs);
            yarn.Applications.Add(mapreduceApp);
            cluster.Components.Add(yarn);

            // Adding Hive component
            HiveComponent hive = new HiveComponent { HeadNodeRole = headnodeRole };
            ConfigHiveComponent(hive, inputs);
            cluster.Components.Add(hive);

            // Adding config action component if needed
            if (inputs.ConfigActions != null && inputs.ConfigActions.Count > 0)
            {
                CustomActionComponent configAction = new CustomActionComponent { HeadNodeRole = headnodeRole, WorkerNodeRole = workernodeRole };
                AddConfigActionComponent(configAction, inputs, headnodeRole, workernodeRole, zookeeperRole);
                cluster.Components.Add(configAction);
            }

            // Adding Oozie component
            OozieComponent oozie = new OozieComponent { HeadNodeRole = headnodeRole };
            ConfigOozieComponent(oozie, inputs);
            cluster.Components.Add(oozie);

            // Adding Hdfs component
            HdfsComponent hdfs = new HdfsComponent { HeadNodeRole = headnodeRole, WorkerNodeRole = workernodeRole };
            ConfigHdfsComponent(hdfs, inputs);
            cluster.Components.Add(hdfs);

            // Adding HadoopCore component
            HadoopCoreComponent hadoopCore = new HadoopCoreComponent();
            ConfigHadoopCoreComponent(hadoopCore, inputs);
            cluster.Components.Add(hadoopCore);

            // Adding Zookeeper component
            cluster.Components.Add(new ZookeeperComponent { ZookeeperRole = zookeeperRole });

            ConfigVirtualNetwork(cluster, inputs);

            return cluster;
        }