Tidy-ups

Re-added lookupExtension (accidentally overwritten earlier)
Remove DV Hub, old example

Author: RoelantVos

DataWarehouseAutomation/DataWarehouseAutomation.sln

@@ -25,7 +25,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Sample Metadata", "Sample M
 		Sample_Metadata\sampleBasicWithExtensions.json = Sample_Metadata\sampleBasicWithExtensions.json
 		Sample_Metadata\sampleCalculation.json = Sample_Metadata\sampleCalculation.json
 		Sample_Metadata\sampleCustomFunctions.json = Sample_Metadata\sampleCustomFunctions.json
-		Sample_Metadata\sampleDataVaultHub.json = Sample_Metadata\sampleDataVaultHub.json
 		Sample_Metadata\sampleFreeForm.json = Sample_Metadata\sampleFreeForm.json
 		Sample_Metadata\sampleMultipleDataItemMappings.json = Sample_Metadata\sampleMultipleDataItemMappings.json
 		Sample_Metadata\sampleSimpleDDL.json = Sample_Metadata\sampleSimpleDDL.json

DataWarehouseAutomation/DataWarehouseAutomation/Utils/HandleBarsHelpers.cs

@@ -1,4 +1,6 @@
-namespace DataWarehouseAutomation.Utils;
+using HandlebarsDotNet;
+
+namespace DataWarehouseAutomation.Utils;
 
 public static class HandlebarsHelpers
 {
@@ -530,5 +532,42 @@ public static void RegisterHandlebarsHelpers()
                 throw new HandlebarsException($"The {{{{hasStringValue}}}} function encountered an error. The list of strings provided as the first argument could not be deserialized. The reported error is: '{ex.Message}'.");
             }
         });
+
+        // lookupExtension allows a lookup of an extension value by key value. Pass in the Extensions list and the string key value.
+        Handlebars.RegisterHelper("lookupExtension", (writer, _, parameters) =>
+        {
+            // Check if the parameters are valid.
+            if (parameters.Length != 2 || parameters[1] is not string)
+            {
+                throw new HandlebarsException("\rThe {{lookupExtension}} helper expects two arguments: a List<Extension> and a string lookup key");
+            }
+
+            var extensionList = new List<Extension>();
+
+            // Deserialize the extensions.
+            try
+            {
+                extensionList = JsonSerializer.Deserialize<List<Extension>>(parameters[0].ToString() ?? string.Empty);
+            }
+            catch (Exception exception)
+            {
+                throw new HandlebarsException($"\rThe {{{{lookupExtension}}}} helper function encountered an error. \r\rThe list of extensions provided as the first argument could not be deserialized, it probably wasn't available or found. Can you check the location of the extension? \r\rThe code so far is:\r\r{writer}\r\rThe reported error is:\r\r'{exception.Message}'");
+            }
+
+            // Write the result.
+            string key = "";
+            try
+            {
+                key = (string)parameters[1];
+                var result = extensionList?.Find(i => i.Key.Equals(key, StringComparison.OrdinalIgnoreCase))?.Value ?? "";
+
+                writer.WriteSafeString($"{result}");
+            }
+            catch (Exception exception)
+            {
+                throw new HandlebarsException($"The {{{{lookupExtension}}}} helper function encountered an error. \r\rNo extension could be found for {key}. \r\rThe reported error is :\r\r'{exception.Message}'");
+            }
+
+        });
     }
 }

DataWarehouseAutomation/Example_Project/Program.cs

@@ -56,7 +56,7 @@ private static void DisplayPatternResult(string patternFile, string jsonMetadata
         }
         catch (Exception ex)
         {
-            Console.WriteLine($"An issue was encountered: {ex}");
+            Console.WriteLine($"An issue was encountered while generating {patternFile} from {jsonMetadataFile}: {ex}");
             Console.ReadKey();
         }
     }

DataWarehouseAutomation/Sample_Templates/TemplateSampleMultipleDataItemMappings.Handlebars

@@ -2,21 +2,21 @@
 --Example where multiple sources map to a single target.
 {{#each dataObjectMappings }}
 
---Working on {{name}}
+--Working on '{{name}}'
 
-Explaining mappings of multiple sources to one target, in this case {{targetDataObject.name}}.
+Explaining mappings of multiple sources to one target, in this case '{{targetDataObject.name}}'.
 
 The following source Data Objects map to a single target:
 {{#each sourceDataObjects}}
-- {{name}}
+- '{{name}}'
 {{/each}}
 
-Or, in other words {{sourceDataObjects.0.name}} and {{sourceDataObjects.1.name}} map to {{targetDataObject.name}}.
+Or, in other words '{{sourceDataObjects.0.name}}' and '{{sourceDataObjects.1.name}}' map to '{{targetDataObject.name}}'.
 
 The same applies at Data Item Mapping level, where the following Data Item mappings are defined:
 
 {{#each dataItemMappings}}
-{{#each sourceDataItems}} {{name}}{{#unless @last}} and{{/unless}}{{/each}} map(s) to {{targetDataItem.name}}.
+{{#each sourceDataItems}} '{{name}}'{{#unless @last}} and{{/unless}}{{/each}} map(s) to '{{targetDataItem.name}}'.
 
 {{/each}}