public void GenerateCode_InputIsEmpty_NotSuccessful()
{
#region Arrange
string input = null;
#endregion
#region Act
CodeGeneratorService service = new CodeGeneratorService {
};
CodeGenerationResult result = service.GenerateCode(input);
#endregion
#region Assert
Assert.IsNotNull(result);
Assert.IsFalse(result.IsSuccessful);
Assert.IsNotNull(result.Error);
Assert.IsTrue(result.Error.ToLower().Contains("empty"));
Assert.IsNull(result.Code);
#endregion
}
public CodeGenerationResult Generate(string jsonSchema, string jsonFileName, string targetNamespace)
{
if (string.IsNullOrEmpty(jsonSchema))
{
throw new ArgumentException("json schema was not provided", nameof(jsonSchema));
}
var rootname = GetDefaultRootItemNameFromFileName(jsonFileName);
var typeNameGen = new CustomTypeNameGenerator(rootname);
var schema = JsonSchema4.FromJson(jsonSchema);
var generator = new CSharpGenerator(schema, new CSharpGeneratorSettings()
{
Namespace = targetNamespace, ClassStyle = CSharpClassStyle.Poco, RequiredPropertiesMustBeDefined = false, TypeNameGenerator = typeNameGen, ArrayType = "List"
});
var result = new CodeGenerationResult {
Code = generator.GenerateFile()
};
AddAssemblyVersionAttributes(result, targetNamespace);
// this calling back to the TypeGenerator sure gives these a 'bas type/sub-type' kind of vibe.
TypeGenerator.BuildGeneratedCode(result, rootname, CreateMetadataReferences());
result.RootTypeName = typeNameGen.AssignedRootTypeName;
return(result);
}
private static void GenerateQueryType(
CodeGenerationResult result,
DataGeneratorContext dataContext,
CodeGeneratorContext generatorContext,
IReadOnlyList <IObjectType> objectTypes)
{
ClassDeclarationSyntax queryDeclaration =
ClassDeclaration("Query") // todo : we need to read the name from the config
.AddModifiers(
Token(SyntaxKind.PublicKeyword),
Token(SyntaxKind.PartialKeyword))
.AddGeneratedAttribute()
.AddExtendObjectTypeAttribute("Query");
foreach (IObjectType?objectType in objectTypes)
{
queryDeclaration = queryDeclaration.AddMembers(
CreateQueryResolver(dataContext, generatorContext, objectType));
GenerateObjectType(result, generatorContext.Namespace !, objectType);
}
NamespaceDeclarationSyntax namespaceDeclaration =
NamespaceDeclaration(IdentifierName(generatorContext.Namespace !))
.AddMembers(queryDeclaration);
CompilationUnitSyntax compilationUnit =
CompilationUnit()
.AddMembers(namespaceDeclaration);
compilationUnit = compilationUnit.NormalizeWhitespace(elasticTrivia: true);
result.AddSource(generatorContext.Namespace !+".Query.cs", compilationUnit.ToFullString());
}
/// <summary>
/// Constructs a new mapping entry.
/// </summary>
/// <param name="mapping">The parent mapping.</param>
/// <param name="mappingKey">The current mapping key.</param>
/// <param name="codeGenerationResult">
/// The intermediate code-generation result.
/// </param>
public MappingEntry(
IntrinsicMapping <TDelegate> mapping,
IntrinsicMapping.MappingKey mappingKey,
CodeGenerationResult codeGenerationResult)
{
Mapping = mapping;
MappingKey = mappingKey;
CodeGenerationResult = codeGenerationResult;
}
private static void GenerateDependencyInjectionCode(
CodeGenerationResult result,
CodeGeneratorContext generatorContext)
{
var typeName = generatorContext.Name + "RequestExecutorBuilderExtensions";
ClassDeclarationSyntax dependencyInjectionCode =
ClassDeclaration(typeName)
.AddModifiers(
Token(SyntaxKind.PublicKeyword),
Token(SyntaxKind.StaticKeyword),
Token(SyntaxKind.PartialKeyword))
.AddGeneratedAttribute();
var statements = new List <StatementSyntax>
{
AddTypeExtension(Global(generatorContext.Namespace + ".Query")),
AddNeo4JFiltering(),
AddNeo4JSorting(),
AddNeo4JProjections(),
ReturnStatement(IdentifierName("builder"))
};
MethodDeclarationSyntax addTypes =
MethodDeclaration(
IdentifierName(Global(IRequestExecutorBuilder)),
Identifier("Add" + generatorContext.Name + "Types"))
.WithModifiers(
TokenList(
Token(SyntaxKind.PublicKeyword),
Token(SyntaxKind.StaticKeyword)))
.WithParameterList(
ParameterList(
SingletonSeparatedList(
Parameter(Identifier("builder"))
.WithModifiers(TokenList(Token(SyntaxKind.ThisKeyword)))
.WithType(IdentifierName(Global(IRequestExecutorBuilder))))))
.WithBody(Block(statements));
dependencyInjectionCode =
dependencyInjectionCode.AddMembers(addTypes);
NamespaceDeclarationSyntax namespaceDeclaration =
NamespaceDeclaration(IdentifierName(DependencyInjection))
.AddMembers(dependencyInjectionCode);
CompilationUnitSyntax compilationUnit =
CompilationUnit()
.AddMembers(namespaceDeclaration);
compilationUnit = compilationUnit.NormalizeWhitespace(elasticTrivia: true);
result.AddSource(DependencyInjection + $".{typeName}.cs", compilationUnit.ToFullString());
}
private static void GenerateObjectType(
CodeGenerationResult result,
string @namespace,
IObjectType objectType)
{
TypeNameDirective?typeNameDirective =
objectType.GetFirstDirective <TypeNameDirective>("typeName");
var typeName = typeNameDirective?.Name ?? objectType.Name.Value;
ClassDeclarationSyntax modelDeclaration =
ClassDeclaration(typeName)
.AddModifiers(
Token(SyntaxKind.PublicKeyword),
Token(SyntaxKind.PartialKeyword))
.AddGeneratedAttribute();
foreach (IObjectField field in objectType.Fields.Where(t => !t.IsIntrospectionField))
{
RelationshipDirective?relationship =
field.GetFirstDirective <RelationshipDirective>("relationship");
modelDeclaration =
modelDeclaration.AddProperty(
field.GetPropertyName(),
IdentifierName(field.GetTypeName(@namespace)),
field.Description,
setable: true,
configure: p =>
{
if (relationship is not null)
{
p = p.AddNeo4JRelationshipAttribute(
relationship.Name,
relationship.Direction);
}
return(p);
});
}
NamespaceDeclarationSyntax namespaceDeclaration =
NamespaceDeclaration(IdentifierName(@namespace))
.AddMembers(modelDeclaration);
CompilationUnitSyntax compilationUnit =
CompilationUnit()
.AddMembers(namespaceDeclaration);
compilationUnit = compilationUnit.NormalizeWhitespace(elasticTrivia: true);
result.AddSource(@namespace + $".{typeName}.cs", compilationUnit.ToFullString());
}
public CodeGenerationResult Generate(CodeGeneratorContext context)
{
var result = new CodeGenerationResult();
ISchema schema = SchemaHelper.CreateSchema(context.Documents);
GenerateTypes(
result,
DataGeneratorContext.FromSchema(schema),
context,
schema);
return(result);
}
public CodeGenerationResult GenerateCode(string input)
{
CodeGenerationResult result = new CodeGenerationResult {
};
if (string.IsNullOrEmpty(input))
{
result.IsSuccessful = false;
result.Error = "Input cannot be null or empty";
return(result);
}
if (input.Length < 3)
{
result.IsSuccessful = false;
result.Error = "Input cannot be less than 3 characters";
return(result);
}
// Generazione PREFIX
string prefix = string.Empty;
if (IsVowel(input[0]))
{
prefix = "VC";
}
else
{
prefix = "OT";
}
// Generazione BODY
string bodyEnding = IsVowel(input[2]) ? "00--" : "000:";
string body = "B" + input.Length + bodyEnding;
// Generazione SUFFIX
string suffix = input.Length % 2 == 0 ? "$PR" : "$DS";
result.Code = $"{prefix}{body}{suffix}";
result.IsSuccessful = true;
return(result);
}
private static void GenerateTypes(
CodeGenerationResult result,
DataGeneratorContext dataContext,
CodeGeneratorContext generatorContext,
ISchema schema)
{
GenerateQueryType(
result,
dataContext,
generatorContext,
schema.Types
.OfType <ObjectType>()
.Where(type => !IntrospectionTypes.IsIntrospectionType(type))
.ToList());
GenerateDependencyInjectionCode(
result,
generatorContext);
}
internal static CodeGenerationResult BuildGeneratedCode(CodeGenerationResult result, string assemblyName, MetadataReference[] references)
{
var st = CSharpSyntaxTree.ParseText(result.Code);
var fileName = assemblyName;
var options = new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary);
CSharpCompilation compilation = CSharpCompilation.Create(
fileName,
syntaxTrees: new[] { st },
references: references,
options: options);
result.AssemblyBytes = new MemoryStream();
EmitResult emitted = compilation.Emit(result.AssemblyBytes);
if (!emitted.Success)
{
result.Errors = new List <string>();
IEnumerable <Diagnostic> failures = emitted.Diagnostics.Where(diagnostic =>
diagnostic.IsWarningAsError ||
diagnostic.Severity == DiagnosticSeverity.Error);
foreach (Diagnostic diagnostic in failures)
{
result.Errors.Add(string.Format("{0}: {1}", diagnostic.Id, diagnostic.GetMessage()));
}
}
else
{
result.AssemblyBytes.Seek(0, SeekOrigin.Begin);
result.Assembly = Assembly.Load(result.AssemblyBytes.ToArray());
result.AssemblyBytes.Seek(0, SeekOrigin.Begin);
}
result.AssemblyName = fileName + ".dll";
return(result);
}
public CodeGenerationResult Generate(PhysicalSchema schema /* Maybe this should take a logical schema instead to help work out the root elements? */, string targetNamespace)
{
var code = CreateCodeNamespace(schema, targetNamespace);
var provider = new Microsoft.CSharp.CSharpCodeProvider();
var sb = new StringBuilder();
using (StringWriter sw = new StringWriter(sb))
{
provider.CreateGenerator().GenerateCodeFromNamespace(code.Code, sw, new CodeGeneratorOptions());
}
var result = new CodeGenerationResult()
{
Code = sb.ToString()
};
TypeGenerator.BuildGeneratedCode(result, schema.Files[0].FileName /* TODO */, CreateMetadataReferences());
result.RootTypeName = code.RootElementName;
return(result);
}
private IEnumerable<PropertyInfo> AllPropertiesExceptMetaData(CodeGenerationResult infos)
{
return (from p in infos.DataContext.GetProperties()
where p.Name!="MetaData"
select p);
}
private void AddAssemblyVersionAttributes(CodeGenerationResult result, string targetNamespace)
{
var ns = "namespace " + targetNamespace;
result.Code = result.Code.Replace(ns, VersionInfo + ns); // pretty horrible
}
private IEnumerable <PropertyInfo> AllPropertiesExceptMetaData(CodeGenerationResult infos)
{
return(from p in infos.DataContext.GetProperties()
where p.Name != "MetaData"
select p);
}
