ExamineX Dynamic Language Analyzer Value Type

CultureIsoCodeFieldNameMatchExpression.cs

/// <summary>
/// Borrowed From Umbraco Source. Matches a culture iso name suffix
/// </summary>
/// <remarks>
/// myFieldName_en-us will match the "en-us"
/// </remarks>
public static readonly Regex CultureIsoCodeFieldNameMatchExpression = new Regex("^([_\\w]+)_([a-z]{2}-[a-z0-9]{2,4})$", RegexOptions.Compiled);

CustomValueTypeFactory.cs

// A custom value type factory defining a value type called "DynamicCulture" which will 
// dynamically assign a language analyzer to a field based on it's suffix name.
// To use this, you would use the DynamicCultureFieldDefinitionCollection
// to dynamically assign the "DynamicCulture" value type for a suffixed language field.
var customValueTypeFactory = new Dictionary<string, IAzureSearchFieldValueTypeFactory>
{
    ["DynamicCulture"] = new AzureSearchFieldValueTypeFactory(
        fieldName =>
        {
            // Does this field have a culture suffix?
            var match = CultureIsoCodeFieldNameMatchExpression.Match(fieldName);
            if (match.Success && match.Groups.Count == 3)
            {
                // get the matched culture and return a value type with the
                // correct language analyzer
                var culture = match.Groups[2].Value;

                switch(culture)
                {
                    case "ja-ja":
                        return new AzureSearchFieldValueType(
                            fieldName,
                            AzureSearchFieldValueType.StringCollectionType,
                            AnalyzerName.AsString.JaMicrosoft);
                    case "it-it":
                        return new AzureSearchFieldValueType(
                            fieldName,
                            AzureSearchFieldValueType.StringCollectionType,
                            AnalyzerName.AsString.ItLucene);

                    // etc...
                }
            }

            // return the default
            return new AzureSearchFieldValueType(
                fieldName,
                AzureSearchFieldValueType.StringCollectionType,
                AnalyzerName.AsString.StandardLucene,
                false);
        }),
};

DynamicCultureFieldDefinitionCollection.cs

public class DynamicCultureFieldDefinitionCollection : FieldDefinitionCollection
{
    public DynamicCultureFieldDefinitionCollection()
    {
    }

    public DynamicCultureFieldDefinitionCollection(params FieldDefinition[] definitions) : base(definitions)
    {
    }

    public override bool TryGetValue(string fieldName, out FieldDefinition fieldDefinition)
    {
        // Does this field have a culture suffix?
        var match = CultureIsoCodeFieldNameMatchExpression.Match(fieldName);
        if (match.Success && match.Groups.Count == 3)
        {
            fieldDefinition = new FieldDefinition(fieldName, "DynamicCulture");
            return true;
        }

        return base.TryGetValue(fieldName, out fieldDefinition);
    }
}