예제 #1
0
        public PluginsModel(IPluginStateProvider pluginStateProvider, IObservable <Tuple <bool, bool, string, string> > pluginDependencies)
            : base(pluginStateProvider)
        {
            pluginDependencies.Subscribe(t =>
            {
                this._includeSuggest  = t.Item1;
                this.AlreadyInstalled = t.Item2;
                this.InstallDirectory = t.Item3;
                this.ConfigDirectory  = t.Item4;
                this.Refresh();
            });

            this.AvailablePlugins.ItemChanged.Select(e => this.Plugins.Any())
            .Subscribe(any =>
            {
                if (!any)
                {
                    this.HasInternetConnection = true;
                }
            });

            Observable.Timer(TimeSpan.FromSeconds(0), TimeSpan.FromSeconds(2))
            .ObserveOn(RxApp.MainThreadScheduler)
            .Subscribe(async _ => await SetInternetConnection());
        }
예제 #2
0
 protected PluginsModelBase(IPluginStateProvider pluginStateProvider, SemVersion version)
 {
     this.Header = "Plugins";
     this.PluginStateProvider = pluginStateProvider;
     this._version            = version;
     this.InstalledPlugins.Changed.Subscribe(e => this.InstalledPlugins.RaisePropertyChanged());
 }
 public PluginsModel(IPluginStateProvider pluginStateProvider, IObservable <Tuple <bool, string, string> > pluginDependencies) : base(pluginStateProvider)
 {
     pluginDependencies.Subscribe(t =>
     {
         this._alreadyInstalled = t.Item1;
         this.InstallDirectory  = t.Item2;
         this.ConfigDirectory   = t.Item3;
     });
 }
예제 #4
0
 public PluginsModel(IPluginStateProvider pluginStateProvider, IObservable <Tuple <bool, bool, string, string> > pluginDependencies)
 {
     this.Header = "Plugins";
     this.PluginStateProvider = pluginStateProvider;
     pluginDependencies.Subscribe((t) =>
     {
         this._includeSuggest   = t.Item1;
         this._alreadyInstalled = t.Item2;
         this._installDirectory = t.Item3;
         this._configDirectory  = t.Item4;
         this.Refresh();
     });
     //this.Refresh();
 }
예제 #5
0
        public PluginsModel(IPluginStateProvider pluginStateProvider, IObservable <Tuple <bool, string, string> > pluginDependencies)
            : base(pluginStateProvider)
        {
            EnvironmentVariables = new Dictionary <string, string>
            {
                { ElasticsearchEnvironmentStateProvider.ConfDir, this.ConfigDirectory },
                // might be listing plugins from a Elasticsearch 5.x installation
                { ElasticsearchEnvironmentStateProvider.ConfDirOld, this.ConfigDirectory }
            };

            pluginDependencies.Subscribe(t =>
            {
                this.AlreadyInstalled         = t.Item1;
                this.PreviousInstallDirectory = t.Item2;
                this.ConfigDirectory          = t.Item3;
                this.Refresh();
            });

            this.AvailablePlugins.ItemChanged.Select(e => this.Plugins.Any())
            .Subscribe(any =>
            {
                if (!any)
                {
                    this.HasInternetConnection = true;
                }
            });

            this.AvailablePlugins.ItemChanged
            .Where(x => x.PropertyName == nameof(Plugin.Selected) && x.Sender.PluginType == PluginType.XPack)
            .Select(x => x.Sender.Selected)
            .Subscribe(selected =>
            {
                this.XPackEnabled = selected;
                this.Validate();
            });

            Observable.Timer(TimeSpan.FromSeconds(0), TimeSpan.FromSeconds(2))
            .ObserveOn(RxApp.MainThreadScheduler)
            .Subscribe(async _ => await SetInternetConnection());

            this.SetHttpsProxy = ReactiveCommand.CreateAsyncTask(async _ => await this.HttpsProxyUITask());
            this.WhenAnyObservable(vm => vm.SetHttpsProxy)
            .Subscribe(x =>
            {
                // handle the cancel dialog button. Don't remove the current values
                if (x == null)
                {
                    return;
                }

                if (x.Length == 0)
                {
                    HttpsProxyHost = null;
                    HttpsProxyPort = null;
                    return;
                }

                x = Scheme.Replace(x, "$1");
                var proxyParts      = x.Split(new [] { ':' }, 2);
                this.HttpsProxyHost = proxyParts[0];

                this.HttpsProxyPort = proxyParts.Length == 2 && int.TryParse(proxyParts[1], out var port)
                                                ? (int?)port
                                                : null;
            });
        }
예제 #6
0
        public KibanaInstallationModel(
            IWixStateProvider wixStateProvider,
            IServiceStateProvider serviceStateProvider,
            IPluginStateProvider pluginStateProvider,
            IKibanaEnvironmentStateProvider environmentStateProvider,
            ISession session,
            string[] args
            ) : base(wixStateProvider, session, args)
        {
            var versionConfig = new VersionConfiguration(wixStateProvider, this.Session.IsInstalled);

            this.KibanaEnvironmentState = environmentStateProvider;

            this.LocationsModel     = new LocationsModel(versionConfig);
            this.NoticeModel        = new NoticeModel(versionConfig, serviceStateProvider, this.LocationsModel);
            this.ServiceModel       = new ServiceModel(serviceStateProvider, versionConfig);
            this.ConfigurationModel = new ConfigurationModel();
            this.ConnectingModel    = new ConnectingModel();
            var pluginDependencies = this.WhenAnyValue(
                vm => vm.NoticeModel.AlreadyInstalled,
                vm => vm.LocationsModel.InstallDir,
                vm => vm.LocationsModel.ConfigDirectory
                );

            this.PluginsModel = new PluginsModel(pluginStateProvider, pluginDependencies);

            var isUpgrade   = versionConfig.InstallationDirection == InstallationDirection.Up;
            var observeHost = this.WhenAnyValue(x => x.ConfigurationModel.HostName, x => x.ConfigurationModel.HttpPort,
                                                (h, p) => $"http://{(string.IsNullOrWhiteSpace(h) ? "localhost" : h)}:{p}");
            var observeInstallationLog = this.WhenAnyValue(vm => vm.MsiLogFileLocation);
            var observeKibanaLog       = this.WhenAnyValue(vm => vm.LocationsModel.KibanaLog);
            var observeInstallXPack    = this.PluginsModel.AvailablePlugins.ItemChanged
                                         .Where(x => x.PropertyName == nameof(Plugin.Selected) && x.Sender.PluginType == PluginType.XPack)
                                         .Select(x => x.Sender.Selected);

            this.ClosingModel = new ClosingModel(wixStateProvider.CurrentVersion, isUpgrade, observeHost, observeInstallationLog,
                                                 observeKibanaLog, observeInstallXPack, serviceStateProvider);

            this.AllSteps.AddRange(new List <IStep>
            {
                this.NoticeModel,
                this.LocationsModel,
                this.ServiceModel,
                this.ConfigurationModel,
                this.ConnectingModel,
                this.PluginsModel,
                this.ClosingModel
            });

            var observeValidationChanges = this.WhenAny(
                vm => vm.NoticeModel.ValidationFailures,
                vm => vm.LocationsModel.ValidationFailures,
                vm => vm.PluginsModel.ValidationFailures,
                vm => vm.ServiceModel.ValidationFailures,
                vm => vm.ConfigurationModel.ValidationFailures,
                vm => vm.ConnectingModel.ValidationFailures,
                vm => vm.ClosingModel.ValidationFailures,
                vm => vm.TabSelectedIndex,
                (notice, locations, plugins, service, config, connecting, closing, index) =>
            {
                var firstInvalidScreen = this.Steps.FirstOrDefault(s => !s.IsValid) ?? this.ClosingModel;
                return(firstInvalidScreen);
            });

            observeValidationChanges
            .Subscribe(selected =>
            {
                var step     = this.Steps[this.TabSelectedIndex];
                var failures = step.ValidationFailures;
                this.FirstInvalidStepValidationFailures = selected.ValidationFailures;
            });

            this.WhenAny(
                vm => vm.NoticeModel.IsValid,
                vm => vm.LocationsModel.IsValid,
                vm => vm.PluginsModel.IsValid,
                vm => vm.ServiceModel.IsValid,
                vm => vm.ConfigurationModel.IsValid,
                vm => vm.ConnectingModel.IsValid,
                vm => vm.ClosingModel.IsValid,
                (notice, locations, plugins, service, config, connecting, closing) =>
            {
                var firstInvalidScreen = this.Steps.Select((s, i) => new { s, i }).FirstOrDefault(s => !s.s.IsValid);
                return(firstInvalidScreen?.i ?? (this.Steps.Count - 1));
            })
            .Subscribe(selected =>
            {
                this.TabSelectionMax = selected;
                //if one of the steps prior to the current selection is invalid jump back
                if (this.TabSelectedIndex > this.TabSelectionMax)
                {
                    this.TabSelectedIndex = this.TabSelectionMax;
                }

                this.FirstInvalidStepValidationFailures = this.ActiveStep.ValidationFailures;
            });

            this.Install = ReactiveCommand.CreateAsyncTask(observeValidationChanges.Select(s => s.IsValid), _ =>
            {
                this.TabSelectedIndex += 1;
                return(this.InstallUITask());
            });
            this.Install.Subscribe(installationObservable =>
            {
                installationObservable.Subscribe(installed => { this.ClosingModel.Installed = installed; });
            });

            this.Refresh();
            //validate the first stab explicitly on constructing this
            //main viewmodel. WPF triggers a validation already

            this.ParsedArguments = new KibanaArgumentParser(
                this.AllSteps.Cast <IValidatableReactiveObject>().Concat(new[] { this }).ToList(), args);

            this.ActiveStep.Validate();
        }
예제 #7
0
        public InstallationModel(
            IWixStateProvider wixStateProvider,
            JavaConfiguration javaConfiguration,
            IElasticsearchEnvironmentStateProvider environmentStateProvider,
            IServiceStateProvider serviceStateProvider,
            IPluginStateProvider pluginStateProvider,
            ElasticsearchYamlConfiguration yamlConfiguration,
            LocalJvmOptionsConfiguration localJvmOptions,
            ISession session,
            string[] args
            )
        {
            this.Session = session;

            if (wixStateProvider == null)
            {
                throw new ArgumentNullException(nameof(wixStateProvider));
            }
            if (javaConfiguration == null)
            {
                throw new ArgumentNullException(nameof(javaConfiguration));
            }

            this._wixStateProvider             = wixStateProvider;
            this.JavaConfiguration             = javaConfiguration;
            this.ElasticsearchEnvironmentState = environmentStateProvider;
            this._yamlConfiguration            = yamlConfiguration;

            var versionConfig = new VersionConfiguration(wixStateProvider);

            this.SameVersionAlreadyInstalled   = versionConfig.SameVersionAlreadyInstalled;
            this.HigherVersionAlreadyInstalled = versionConfig.HigherVersionAlreadyInstalled;

            this.LocationsModel     = new LocationsModel(environmentStateProvider, yamlConfiguration, versionConfig);
            this.NoticeModel        = new NoticeModel(versionConfig, serviceStateProvider, this.LocationsModel);
            this.ServiceModel       = new ServiceModel(serviceStateProvider, versionConfig);
            this.ConfigurationModel = new ConfigurationModel(yamlConfiguration, localJvmOptions);

            var pluginDependencies = this.WhenAnyValue(
                vm => vm.ConfigurationModel.IngestNode,
                vm => vm.NoticeModel.AlreadyInstalled,
                vm => vm.LocationsModel.InstallDir,
                vm => vm.LocationsModel.ConfigDirectory
                );

            this.PluginsModel = new PluginsModel(pluginStateProvider, pluginDependencies);

            var observeHost = this.WhenAnyValue(vm => vm.ConfigurationModel.NetworkHost, vm => vm.ConfigurationModel.HttpPort,
                                                (h, p) => $"http://{(string.IsNullOrWhiteSpace(h) ? "localhost" : h)}:{p}");
            var observeLog = this.WhenAnyValue(vm => vm.MsiLogFileLocation);
            var observeElasticsearchLog = this.WhenAnyValue(vm => vm.LocationsModel.ElasticsearchLog);

            var isUpgrade = versionConfig.InstallationDirection == InstallationDirection.Up;

            this.ClosingModel = new ClosingModel(wixStateProvider.CurrentVersion, isUpgrade, observeHost, observeLog, observeElasticsearchLog, serviceStateProvider);

            this.AllSteps = new ReactiveList <IStep>
            {
                this.NoticeModel,
                this.LocationsModel,
                this.ServiceModel,
                this.ConfigurationModel,
                this.PluginsModel,
                this.ClosingModel
            };
            this.Steps = this.AllSteps.CreateDerivedCollection(x => x, x => x.IsRelevant);

            this.NextButtonText = TextResources.SetupView_NextText;

            var canMoveForwards = this.WhenAny(vm => vm.TabSelectedIndex, vm => vm.TabSelectionMax,
                                               (i, max) => i.GetValue() < max.GetValue());

            this.Next = ReactiveCommand.Create(canMoveForwards);
            this.Next.Subscribe(i =>
            {
                this.TabSelectedIndex = Math.Min(this.Steps.Count - 1, this.TabSelectedIndex + 1);
            });

            var canMoveBackwards = this.WhenAny(vm => vm.TabSelectedIndex, (i) => i.GetValue() > 0);

            this.Back = ReactiveCommand.Create(canMoveBackwards);
            this.Back.Subscribe(i =>
            {
                this.TabSelectedIndex = Math.Max(0, this.TabSelectedIndex - 1);
            });

            this.Help                  = ReactiveCommand.Create();
            this.ShowLicenseBlurb      = ReactiveCommand.Create();
            this.ShowCurrentStepErrors = ReactiveCommand.Create();
            this.RefreshCurrentStep    = ReactiveCommand.Create();
            this.RefreshCurrentStep.Subscribe(x => { this.Steps[this.TabSelectedIndex].Refresh(); });
            this.Exit = ReactiveCommand.Create();

            var observeValidationChanges = this.WhenAny(
                vm => vm.NoticeModel.ValidationFailures,
                vm => vm.LocationsModel.ValidationFailures,
                vm => vm.ConfigurationModel.ValidationFailures,
                vm => vm.PluginsModel.ValidationFailures,
                vm => vm.ServiceModel.ValidationFailures,
                vm => vm.ClosingModel.ValidationFailures,
                vm => vm.TabSelectedIndex,
                (welcome, locations, configuration, plugins, service, install, index) =>
            {
                var firstInvalidScreen = this.Steps.FirstOrDefault(s => !s.IsValid) ?? this.ClosingModel;
                return(firstInvalidScreen);
            });
            var canInstall = observeValidationChanges.Select(s => s.IsValid);

            this.Install = ReactiveCommand.CreateAsyncTask(canInstall, _ =>
            {
                this.TabSelectedIndex += 1;
                return(this.InstallUITask());
            });

            this.Install.Subscribe(installationObservable =>
            {
                installationObservable.Subscribe(installed =>
                {
                    this.ClosingModel.Installed = installed;
                });
            });


            this.WhenAny(vm => vm.TabSelectedIndex, v => v.GetValue())
            .Subscribe(i =>
            {
                var c = this.Steps.Count;
                if (i == (c - 1))
                {
                    this.NextButtonText = TextResources.SetupView_ExitText;
                }
                else if (i == (c - 2))
                {
                    this.NextButtonText = TextResources.SetupView_InstallText;
                }
                else
                {
                    this.NextButtonText = TextResources.SetupView_NextText;
                }
            });


            observeValidationChanges
            .Subscribe(selected =>
            {
                var step     = this.Steps[this.TabSelectedIndex];
                var failures = step.ValidationFailures;
                this.CurrentStepValidationFailures = selected.ValidationFailures;
            });


            this.WhenAny(
                vm => vm.NoticeModel.IsValid,
                vm => vm.LocationsModel.IsValid,
                vm => vm.ConfigurationModel.IsValid,
                vm => vm.PluginsModel.IsValid,
                vm => vm.ServiceModel.IsValid,
                vm => vm.ClosingModel.IsValid,
                (welcome, locations, configuration, plugins, service, install) =>
            {
                var firstInvalidScreen = this.Steps.Select((s, i) => new { s, i }).FirstOrDefault(s => !s.s.IsValid);
                return(firstInvalidScreen?.i ?? (this.Steps.Count - 1));
            })
            .Subscribe(selected =>
            {
                this.TabSelectionMax = selected;
                //if one of the steps prior to the current selection is invalid jump back
                if (this.TabSelectedIndex > this.TabSelectionMax)
                {
                    this.TabSelectedIndex = this.TabSelectionMax;
                }

                this.CurrentStepValidationFailures = this.ActiveStep.ValidationFailures;
            });

            this.WhenAnyValue(view => view.ValidationFailures)
            .Subscribe(failures =>
            {
                this.PrequisiteFailures = (failures ?? Enumerable.Empty <ValidationFailure>())
                                          .Where(v => _prerequisiteProperties.Contains(v.PropertyName))
                                          .ToList();
            });

            this.Refresh();
            //validate the first stab explicitly on constructing this
            //main viewmodel. WPF triggers a validation already
            this.ParsedArguments = new InstallationModelArgumentParser(this.AllSteps.Cast <IValidatableReactiveObject>().Concat(new[] { this }).ToList(), args);

            this.ActiveStep.Validate();
        }
        public ElasticsearchInstallationModel(
            IWixStateProvider wixStateProvider,
            JavaConfiguration javaConfiguration,
            ElasticsearchEnvironmentConfiguration elasticsearchEnvironmentConfiguration,
            IServiceStateProvider serviceStateProvider,
            IPluginStateProvider pluginStateProvider,
            ElasticsearchYamlConfiguration yamlConfiguration,
            LocalJvmOptionsConfiguration localJvmOptions,
            TempDirectoryConfiguration tempDirectoryConfiguration,
            IFileSystem fileSystem,
            ISession session,
            string[] args) : base(wixStateProvider, session, args)
        {
            this.JavaConfiguration = javaConfiguration ?? throw new ArgumentNullException(nameof(javaConfiguration));
            this.ElasticsearchEnvironmentConfiguration = elasticsearchEnvironmentConfiguration;
            this.TempDirectoryConfiguration            = tempDirectoryConfiguration;
            this._yamlConfiguration = yamlConfiguration;

            var versionConfig = new VersionConfiguration(wixStateProvider, this.Session.IsInstalled);

            this.SameVersionAlreadyInstalled = versionConfig.SameVersionAlreadyInstalled;
            this.UnInstalling           = this.Session.IsUninstalling;
            this.InstallationInProgress = this._wixStateProvider.InstallationInProgress;
            this.Installing             = this.Session.IsInstalling;
            this.Installed = this.Session.IsInstalled;
            this.Upgrading = this.Session.IsUpgrading;
            this.HigherVersionAlreadyInstalled = versionConfig.HigherVersionAlreadyInstalled;

            this.LocationsModel     = new LocationsModel(elasticsearchEnvironmentConfiguration, yamlConfiguration, versionConfig, fileSystem);
            this.ServiceModel       = new ServiceModel(serviceStateProvider, versionConfig);
            this.NoticeModel        = new NoticeModel(versionConfig, serviceStateProvider, this.LocationsModel, this.ServiceModel);
            this.ConfigurationModel = new ConfigurationModel(yamlConfiguration, localJvmOptions);

            var pluginDependencies = this.WhenAnyValue(
                vm => vm.NoticeModel.ExistingVersionInstalled,
                vm => vm.LocationsModel.PreviousInstallationDirectory,
                vm => vm.LocationsModel.ConfigDirectory
                );

            this.PluginsModel = new PluginsModel(pluginStateProvider, versionConfig.CurrentVersion, pluginDependencies);
            var upgradeFromXPackPlugin = this.WhenAnyValue(vm => vm.PluginsModel.PreviousInstallationHasXPack);

            var canAutomaticallySetup = this.WhenAnyValue(vm => vm.ServiceModel.StartAfterInstall, vm => vm.ServiceModel.InstallAsService)
                                        .Select(t => t.Item1 && t.Item2);

            this.XPackModel = new XPackModel(versionConfig, canAutomaticallySetup, upgradeFromXPackPlugin);

            var isUpgrade   = versionConfig.InstallationDirection == InstallationDirection.Up;
            var observeHost = this.WhenAnyValue(vm => vm.ConfigurationModel.NetworkHost, vm => vm.ConfigurationModel.HttpPort,
                                                (h, p) => $"http://{(string.IsNullOrWhiteSpace(h) ? "localhost" : h)}:{p}");
            var observeInstallationLog  = this.WhenAnyValue(vm => vm.MsiLogFileLocation);
            var observeElasticsearchLog = this.WhenAnyValue(vm => vm.LocationsModel.ElasticsearchLog);

            this.ClosingModel = new ClosingModel(wixStateProvider.CurrentVersion, isUpgrade, observeHost, observeInstallationLog, observeElasticsearchLog, serviceStateProvider);

            this.AllSteps.AddRange(new List <IStep>
            {
                this.NoticeModel,
                this.LocationsModel,
                this.ServiceModel,
                this.ConfigurationModel,
                this.PluginsModel,
                this.XPackModel,
                this.ClosingModel
            });
            this.AllSteps.ChangeTrackingEnabled = true;

            var observeValidationChanges = this.WhenAny(
                vm => vm.NoticeModel.ValidationFailures,
                vm => vm.LocationsModel.ValidationFailures,
                vm => vm.ConfigurationModel.ValidationFailures,
                vm => vm.PluginsModel.ValidationFailures,
                vm => vm.XPackModel.ValidationFailures,
                vm => vm.ServiceModel.ValidationFailures,
                vm => vm.ClosingModel.ValidationFailures,
                vm => vm.TabSelectedIndex,
                (welcome, locations, configuration, plugins, xpack, service, install, index) =>
            {
                var firstInvalidScreen = this.Steps.FirstOrDefault(s => !s.IsValid) ?? this.ClosingModel;
                return(firstInvalidScreen);
            });

            observeValidationChanges
            .Subscribe(firstInvalidStep =>
            {
                this.TabFirstInvalidIndex = this.Steps
                                            .Select((s, i) => new { s, i = (int?)i })
                                            .Where(t => !t.s.IsValid)
                                            .Select(t => t.i)
                                            .FirstOrDefault();
                this.FirstInvalidStepValidationFailures = firstInvalidStep.ValidationFailures;
            });

            this.WhenAny(
                vm => vm.NoticeModel.IsValid,
                vm => vm.LocationsModel.IsValid,
                vm => vm.ConfigurationModel.IsValid,
                vm => vm.PluginsModel.IsValid,
                vm => vm.XPackModel.IsValid,
                vm => vm.ServiceModel.IsValid,
                vm => vm.ClosingModel.IsValid,
                (welcome, locations, configuration, plugins, xpack, service, install) =>
            {
                var firstInvalidScreen = this.Steps.Select((s, i) => new { s, i }).FirstOrDefault(s => !s.s.IsValid);
                return(firstInvalidScreen?.i ?? (this.Steps.Count - 1));
            })
            .Subscribe(selected =>
            {
                this.TabSelectionMax = selected;
                //if one of the steps prior to the current selection is invalid jump back
                if (this.TabSelectedIndex > this.TabSelectionMax)
                {
                    this.TabSelectedIndex = this.TabSelectionMax;
                }

                this.FirstInvalidStepValidationFailures = this.ActiveStep.ValidationFailures;
            });

            this.Steps.Changed.Subscribe(e =>
            {
                var firstInvalidScreen = this.Steps.Select((s, i) => new { s, i }).FirstOrDefault(s => !s.s.IsValid);
                var selectedTabIndex   = firstInvalidScreen?.i ?? (this.Steps.Count - 1);
                this.TabSelectionMax   = selectedTabIndex;

                //if one of the steps prior to the current selection is invalid jump back
                if (this.TabSelectedIndex > this.TabSelectionMax)
                {
                    this.TabSelectedIndex = this.TabSelectionMax;
                }

                this.FirstInvalidStepValidationFailures = this.ActiveStep.ValidationFailures;
            });

            this.Install = ReactiveCommand.CreateAsyncTask(observeValidationChanges.Select(s => s.IsValid), _ =>
            {
                this.TabSelectedIndex += 1;
                return(this.InstallUITask());
            });

            this.Install.Subscribe(installationObservable =>
            {
                installationObservable.Subscribe(installed => this.ClosingModel.Installed = installed);
            });

            this.Refresh();
            //validate the first stab explicitly on constructing this
            //main viewmodel. WPF triggers a validation already
            this.ParsedArguments = new ElasticsearchArgumentParser(
                this.AllSteps.Cast <IValidatableReactiveObject>().Concat(new[] { this }).ToList(), args);

            this.ActiveStep.Validate();
        }
예제 #9
0
        public ElasticsearchInstallationModel(
            IWixStateProvider wixStateProvider,
            JavaConfiguration javaConfiguration,
            ElasticsearchEnvironmentConfiguration elasticsearchEnvironmentConfiguration,
            IServiceStateProvider serviceStateProvider,
            IPluginStateProvider pluginStateProvider,
            ElasticsearchYamlConfiguration yamlConfiguration,
            LocalJvmOptionsConfiguration localJvmOptions,
            ISession session,
            string[] args
            ) : base(wixStateProvider, session, args)
        {
            this.JavaConfiguration = javaConfiguration ?? throw new ArgumentNullException(nameof(javaConfiguration));
            this.ElasticsearchEnvironmentConfiguration = elasticsearchEnvironmentConfiguration;
            this._yamlConfiguration = yamlConfiguration;

            var versionConfig = new VersionConfiguration(wixStateProvider);

            this.SameVersionAlreadyInstalled   = versionConfig.SameVersionAlreadyInstalled;
            this.HigherVersionAlreadyInstalled = versionConfig.HigherVersionAlreadyInstalled;

            this.LocationsModel     = new LocationsModel(elasticsearchEnvironmentConfiguration, yamlConfiguration, versionConfig);
            this.NoticeModel        = new NoticeModel(versionConfig, serviceStateProvider, this.LocationsModel);
            this.ServiceModel       = new ServiceModel(serviceStateProvider, versionConfig);
            this.ConfigurationModel = new ConfigurationModel(yamlConfiguration, localJvmOptions);

            var pluginDependencies = this.WhenAnyValue(
                vm => vm.ConfigurationModel.IngestNode,
                vm => vm.NoticeModel.AlreadyInstalled,
                vm => vm.LocationsModel.InstallDir,
                vm => vm.LocationsModel.ConfigDirectory
                );

            this.PluginsModel = new PluginsModel(pluginStateProvider, pluginDependencies);

            var isUpgrade   = versionConfig.InstallationDirection == InstallationDirection.Up;
            var observeHost = this.WhenAnyValue(vm => vm.ConfigurationModel.NetworkHost, vm => vm.ConfigurationModel.HttpPort,
                                                (h, p) => $"http://{(string.IsNullOrWhiteSpace(h) ? "localhost" : h)}:{p}");
            var observeInstallationLog  = this.WhenAnyValue(vm => vm.MsiLogFileLocation);
            var observeElasticsearchLog = this.WhenAnyValue(vm => vm.LocationsModel.ElasticsearchLog);
            var observeInstallXPack     = this.PluginsModel.AvailablePlugins.ItemChanged
                                          .Where(x => x.PropertyName == nameof(Plugin.Selected) && x.Sender.PluginType == PluginType.XPack)
                                          .Select(x => x.Sender.Selected);

            this.ClosingModel = new ClosingModel(wixStateProvider.CurrentVersion, isUpgrade, observeHost, observeInstallationLog,
                                                 observeElasticsearchLog, observeInstallXPack, serviceStateProvider);
            this.AllSteps = new ReactiveList <IStep>
            {
                this.NoticeModel,
                this.LocationsModel,
                this.ServiceModel,
                this.ConfigurationModel,
                this.PluginsModel,
                this.ClosingModel
            };
            this.Steps = this.AllSteps.CreateDerivedCollection(x => x, x => x.IsRelevant);

            var observeValidationChanges = this.WhenAny(
                vm => vm.NoticeModel.ValidationFailures,
                vm => vm.LocationsModel.ValidationFailures,
                vm => vm.ConfigurationModel.ValidationFailures,
                vm => vm.PluginsModel.ValidationFailures,
                vm => vm.ServiceModel.ValidationFailures,
                vm => vm.ClosingModel.ValidationFailures,
                vm => vm.TabSelectedIndex,
                (welcome, locations, configuration, plugins, service, install, index) =>
            {
                var firstInvalidScreen = this.Steps.FirstOrDefault(s => !s.IsValid) ?? this.ClosingModel;
                return(firstInvalidScreen);
            });

            observeValidationChanges
            .Subscribe(selected =>
            {
                var step     = this.Steps[this.TabSelectedIndex];
                var failures = step.ValidationFailures;
                this.CurrentStepValidationFailures = selected.ValidationFailures;
            });

            this.WhenAny(
                vm => vm.NoticeModel.IsValid,
                vm => vm.LocationsModel.IsValid,
                vm => vm.ConfigurationModel.IsValid,
                vm => vm.PluginsModel.IsValid,
                vm => vm.ServiceModel.IsValid,
                vm => vm.ClosingModel.IsValid,
                (welcome, locations, configuration, plugins, service, install) =>
            {
                var firstInvalidScreen = this.Steps.Select((s, i) => new { s, i }).FirstOrDefault(s => !s.s.IsValid);
                return(firstInvalidScreen?.i ?? (this.Steps.Count - 1));
            })
            .Subscribe(selected =>
            {
                this.TabSelectionMax = selected;
                //if one of the steps prior to the current selection is invalid jump back
                if (this.TabSelectedIndex > this.TabSelectionMax)
                {
                    this.TabSelectedIndex = this.TabSelectionMax;
                }

                this.CurrentStepValidationFailures = this.ActiveStep.ValidationFailures;
            });

            this.Install = ReactiveCommand.CreateAsyncTask(observeValidationChanges.Select(s => s.IsValid), _ =>
            {
                this.TabSelectedIndex += 1;
                return(this.InstallUITask());
            });

            this.Install.Subscribe(installationObservable =>
            {
                installationObservable.Subscribe(installed => this.ClosingModel.Installed = installed);
            });

            this.Refresh();
            //validate the first stab explicitly on constructing this
            //main viewmodel. WPF triggers a validation already
            this.ParsedArguments = new ElasticsearchArgumentParser(
                this.AllSteps.Cast <IValidatableReactiveObject>().Concat(new[] { this }).ToList(), args);

            this.ActiveStep.Validate();
        }