public CompoundDocument Transform(object objectGraph, Context context)
{
CompoundDocument result = objectGraph as CompoundDocument;
if (result != null)
{
return(result);
}
Type innerObjectType = TransformationHelper.GetObjectType(objectGraph);
TransformationHelper.VerifyTypeSupport(innerObjectType);
TransformationHelper.AssureAllMappingsRegistered(innerObjectType, context.Configuration);
result = new CompoundDocument
{
Meta = TransformationHelper.GetMetadata(objectGraph)
};
var resource = TransformationHelper.UnwrapResourceObject(objectGraph);
var resourceMapping = context.Configuration.GetMapping(innerObjectType);
var resourceList = TransformationHelper.UnifyObjectsToList(resource);
var representationList = resourceList.Select(o => TransformationHelper.CreateResourceRepresentation(o, resourceMapping, context));
var primaryResource = TransformationHelper.ChooseProperResourceRepresentation(resource, representationList);
result.Data = primaryResource;
if (resourceMapping.Relationships.Any())
{
result.Included = TransformationHelper.CreateIncludedRepresentations(resourceList, resourceMapping, context);
}
return(result);
}
public void AppendIncludedRepresentationRecursive_RecursesWholeTree()
{
// Arrange
var source = new PostBuilder()
.WithAuthor(PostBuilder.Asimov)
.WithComment(1, "Comment One")
.WithComment(2, "Comment Two")
.Build();
var sourceList = new List<object>()
{
source
};
var config = TestModelConfigurationBuilder.BuilderForEverything.Build();
var mapping = config.GetMapping(typeof(Post));
var context = new Context(
new Uri("http://dummy:4242/posts"),
new string[] { "authors.comments" });
var transformationHelper = new TransformationHelper(config, new FakeLinkBuilder());
// Act
var result = transformationHelper.CreateIncludedRepresentations(sourceList, mapping, context);
// Assert
Assert.NotNull(result.Single(x => x.Id == "1" && x.Type == "comments"));
Assert.NotNull(result.Single(x => x.Id == "2" && x.Type == "comments"));
Assert.NotNull(result.Single(x => x.Id == "1" && x.Type == "authors"));
Assert.False(result.Any(x => x.Type == "posts"));
}
public JsonApiTransformer(
JsonSerializer serializer,
IConfiguration configuration,
TransformationHelper transformationHelper)
{
this.serializer = serializer;
this.configuration = configuration;
this.transformationHelper = transformationHelper;
}
public JsonApiTransformer(
JsonSerializer serializer,
IConfiguration configuration,
TransformationHelper transformationHelper)
{
this.serializer = serializer;
this.configuration = configuration;
this.transformationHelper = transformationHelper;
}
public void Apply(HttpConfiguration configuration)
{
var serializer = GetJsonSerializer();
var helper = new TransformationHelper();
var transformer = new JsonApiTransformer { Serializer = serializer, TransformationHelper = helper };
var filter = new JsonApiActionFilter(transformer, this);
configuration.Filters.Add(filter);
var formatter = new JsonApiFormatter(this, serializer);
configuration.Formatters.Add(formatter);
}
public void AppendIncludedRepresentationRecursive_RecursesWholeTree_No_Duplicates()
{
// Arrange
var duplicateAuthor = PostBuilder.Asimov;
var firstSource = new PostBuilder()
.WithAuthor(duplicateAuthor)
.Build();
var secondSource = new PostBuilder()
.WithAuthor(duplicateAuthor)
.Build();
var sourceList = new List<object>()
{
firstSource,
secondSource
};
var config = TestModelConfigurationBuilder.BuilderForEverything.Build();
var mapping = config.GetMapping(typeof(Post));
var context = new Context(
new Uri("http://dummy:4242/posts"),
new string[] { "authors.comments" });
var transformationHelper = new TransformationHelper(config, new FakeLinkBuilder());
// Act
var result = transformationHelper.CreateIncludedRepresentations(sourceList, mapping, context);
// Assert
Assert.Equal(1, result.Count(x =>
x.Type == "authors" &&
x.Id == PostBuilder.Asimov.Id.ToString()));
}
public void GIVEN_NoIncludedItems_WHEN_Get_THEN_IncludedItemsAreNull()
{
// Arrange
var source = new PostBuilder()
.Build();
var sourceList = new List<object>()
{
source
};
var config = TestModelConfigurationBuilder.BuilderForEverything.Build();
var mapping = config.GetMapping(typeof(Post));
var context = new Context(new Uri("http://dummy:4242/posts"));
var transformationHelper = new TransformationHelper(config, new FakeLinkBuilder());
// Act
var result = transformationHelper.CreateIncludedRepresentations(sourceList, mapping, context);
// Assert
Assert.Null(result);
}
public JsonApiTransformer Build()
{
var serializer = JsonSerializerBuilder.Build();
var transformationHelper = new TransformationHelper(config, linkBuilder);
return new JsonApiTransformer(serializer, config, transformationHelper);
}
public IDelta TransformBack(UpdateDocument updateDocument, Type type, Context context)
{
var mapping = context.Configuration.GetMapping(type);
var openGeneric = typeof(Delta <>);
var closedGenericType = openGeneric.MakeGenericType(type);
var delta = Activator.CreateInstance(closedGenericType) as IDelta;
if (delta == null)
{
return(null);
}
var resourceKey = mapping.ResourceType;
if (!updateDocument.Data.ContainsKey(resourceKey))
{
return(delta);
}
var resource = updateDocument.Data[resourceKey] as JObject;
if (resource == null)
{
return(delta);
}
// Scan the data for which properties are only set
foreach (var propertySetter in mapping.PropertySettersExpressions)
{
JToken value;
resource.TryGetValue(propertySetter.Key, StringComparison.CurrentCultureIgnoreCase, out value);
if (value == null)
{
continue;
}
// Set only the properties that are present
var methodCallExpression = propertySetter.Value.Body as MethodCallExpression;
if (methodCallExpression != null)
{
Type returnType = methodCallExpression.Arguments[0].Type;
var resultValue = TransformationHelper.GetValue(value, returnType);
string key = propertySetter.Key.TrimStart('_');
delta.ObjectPropertyValues.Add(key, resultValue);
}
}
JToken linksToken;
resource.TryGetValue("links", StringComparison.CurrentCultureIgnoreCase, out linksToken);
JObject links = linksToken as JObject;
if (links != null)
{
foreach (var link in mapping.Relationships)
{
JToken value;
links.TryGetValue(link.RelationshipName, StringComparison.CurrentCultureIgnoreCase, out value);
if (value == null)
{
continue;
}
if (link.IsCollection)
{
var property = link.RelatedCollectionProperty;
if (property != null)
{
var resultValue = TransformationHelper.GetCollection(value, link);
string key = link.RelationshipName.TrimStart('_');
delta.ObjectPropertyValues.Add(key, resultValue);
}
}
else
{
delta.ObjectPropertyValues.Add(link.ParentResourceNavigationPropertyName, TransformationHelper.GetValue(value, link.ParentResourceNavigationPropertyType));
}
}
}
return(delta);
}
public CompoundDocument Transform(Exception error)
{
return(TransformationHelper.HandleException(error));
}