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How to use TransformerFactory class of NBi.Core.Transformation package

Best NBi code snippet using NBi.Core.Transformation.TransformerFactory

InstanceArgsBuilder.cs

...81                    var derivationArgs = new Dictionary<string, DerivationArgs>();82                    foreach (var derivation in (obj as InstanceSettlingXml).DerivedVariables)83                    {84                        var transformerArgs = new TransformaterArgs() { Language = derivation.Script.Language, Code = derivation.Script.Code };85                        var transformerFactory = new TransformerFactory(ServiceLocator, new Context(Variables));86                        var transformer = transformerFactory.Instantiate(transformerArgs);87                        transformer.Initialize(derivation.Script.Code);88                        derivationArgs.Add(derivation.Name, new DerivationArgs() { Source = derivation.BasedOn, Transformer = transformer });89                    }90                    args = new DerivedVariableInstanceArgs()91                    {92                        Name = variable.Name,93                        Resolver = sequenceResolver,94                        Derivations = derivationArgs,95                        Categories = (obj as InstanceSettlingXml).Categories,96                        Traits = (obj as InstanceSettlingXml).Traits.ToDictionary(x => x.Name, x => x.Value),97                    };98                }99            }100        }101        private ISequenceResolver BuildFilterSequenceResolver(ColumnType type, ISequenceResolver resolver, FilterSequenceXml filterXml)102        {103            if (filterXml == null)104                return resolver;105            var predicateBuilder = new PredicateArgsBuilder(ServiceLocator, new Context(Variables));106            var predicateArgs = predicateBuilder.Execute(filterXml.Predication.ColumnType, filterXml.Predication.Predicate);107            var predicate = new PredicateFactory().Instantiate(predicateArgs);108            var operandTransformation = new TransformerFactory(ServiceLocator, new Context(Variables)).Instantiate109                (110                    new OperandTransformation111                    {112                        OriginalType = type,113                        Code = filterXml.Predication.Operand114                    }115                );116            operandTransformation.Initialize(filterXml.Predication.Operand);117            var factory = new SequenceResolverFactory(ServiceLocator);118            return factory.Instantiate(type, new FilterSequenceResolverArgs(resolver, predicate, operandTransformation));119        }120        private class OperandTransformation : ITransformationInfo121        {122            public ColumnType OriginalType { get ; set; }...

TransformerFactoryTest.cs

Source: TransformerFactoryTest.cs

...11using NBi.Core.Injection;12namespace NBi.Testing.Core.Transformation13{14    [TestFixture]15    public class TransformerFactoryTest16    {17        [Test]18        [TestCase(LanguageType.CSharp, typeof(CSharpTransformer<decimal>))]19        [TestCase(LanguageType.NCalc, typeof(NCalcTransformer<decimal>))]20        [TestCase(LanguageType.Format, typeof(FormatTransformer<decimal>))]21        [TestCase(LanguageType.Native, typeof(NativeTransformer<decimal>))]22        public void Build_Language_Correct(LanguageType language, Type result)23        {24            var info = Mock.Of<ITransformationInfo>25            (26                i => i.Language == language27                    && i.OriginalType == ColumnType.Numeric28                    && i.Code == "value"   29            );30            var factory = new TransformerFactory(new ServiceLocator(), null);31            var provider = factory.Instantiate(info);32            Assert.IsInstanceOf(result, provider);33        }34        [Test]35        [TestCase(ColumnType.Text, typeof(CSharpTransformer<string>))]36        [TestCase(ColumnType.Numeric, typeof(CSharpTransformer<decimal>))]37        [TestCase(ColumnType.DateTime, typeof(CSharpTransformer<DateTime>))]38        [TestCase(ColumnType.Boolean, typeof(CSharpTransformer<bool>))]39        public void Build_Language_Correct(ColumnType originalType, Type result)40        {41            var info = Mock.Of<ITransformationInfo>42            (43                i => i.Language == LanguageType.CSharp44                    && i.OriginalType == originalType45                    && i.Code == "value"46            );47            var factory = new TransformerFactory(new ServiceLocator(), null);48            var provider = factory.Instantiate(info);49            Assert.IsInstanceOf(result, provider);50        }51        [Test]52        [TestCase(LanguageType.NCalc, ColumnType.DateTime)]53        [TestCase(LanguageType.NCalc, ColumnType.Boolean)]54        [TestCase(LanguageType.Format, ColumnType.Text)]55        [TestCase(LanguageType.Format, ColumnType.Boolean)]56        public void Build_Language_Correct(LanguageType language, ColumnType columnType)57        {58            var info = Mock.Of<ITransformationInfo>59            (60                i => i.Language == language61                    && i.OriginalType == columnType62                    && i.Code == "value"63            );64            var factory = new TransformerFactory(new ServiceLocator(), null);65            Assert.Throws<InvalidOperationException>(delegate { factory.Instantiate(info); });66        }67    }68}...

TransformationProvider.cs

Source: TransformationProvider.cs

...13{14    public class TransformationProvider15    {16        private IDictionary<IColumnIdentifier, ITransformer> cacheTransformers;17        private readonly TransformerFactory factory;18        private Context Context { get; }19        public TransformationProvider(ServiceLocator serviceLocator, Context context)20        {21            cacheTransformers = new Dictionary<IColumnIdentifier, ITransformer>();22            factory = new TransformerFactory(serviceLocator, context);23            Context = context;24        }25        public void Add(IColumnIdentifier indentifier, ITransformationInfo transfo)26        {27            var transformer = factory.Instantiate(transfo);28            transformer.Initialize(transfo.Code);29            if (cacheTransformers.ContainsKey(indentifier))30                throw new NBiException($"You can't define two transformers for the same column. The column {indentifier.Label} has already another transformer specified.");31            cacheTransformers.Add(indentifier, transformer);32        }33        public virtual IResultSet Transform(IResultSet resultSet)34        {35            foreach (var identifier in cacheTransformers.Keys)36            {...

TransformerFactory

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using NBi.Core.Transformation;7using NBi.Core.Transformation.Transformer.Native;8{9    {10        static void Main(string[] args)11        {12            var factory = new TransformerFactory();13            var transformer = factory.Instantiate(new TransformerArgs("Native", "ToUpper"));14            var result = transformer.Execute("nbi");15            Console.WriteLine(result);16        }17    }18}

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