protected AbstractThriftMetadataBuilder(ThriftCatalog catalog, Type structType)
{
Guard.ArgumentNotNull(catalog, nameof(catalog));
Guard.ArgumentNotNull(structType, nameof(structType));
this._fields = new List <FieldMetadata>();
this._extractors = new List <Extractor>();
this._builderMethodInjections = new List <MethodInjection>();
this._constructorInjections = new List <ConstructorInjection>();
this._fieldInjections = new List <FieldInjection>();
this._methodInjections = new List <MethodInjection>();
this.Catalog = catalog;
this.StructType = structType;
this._metadataErrors = new MetadataErrors(catalog.Monitor);
// assign the struct name from the annotation or from the Java class
this.StructName = ExtractName();
// get the builder type from the annotation or from the Java class
this.BuilderType = ExtractBuilderType();
// extract all of the annotated constructor and report an error if
// there is more than one or none
// extract thrift fields from the annotated fields and verify
ExtractFromFields();
// also extract thrift fields from the annotated parameters and verify
ExtractFromConstructors();
//不考虑支持方法注入
// extract thrift fields from the annotated methods (and parameters) and verify
//extractFromMethods();
}
public ThriftStructMetadataBuilder(ThriftCatalog catalog, Type structType) : base(catalog, structType)
{
this.VerifyType <ThriftStructAttribute>();
this.NormalizeThriftFields(catalog);
}
///<summary>
///Verifies that the the fields all have a supported Java type and that all fields map to the
///exact same ThriftType.
///</summary>
protected void VerifyFieldType(short id, String name, IEnumerable <FieldMetadata> fields, ThriftCatalog catalog)
{
bool isSupportedType = true;
foreach (FieldMetadata field in fields)
{
if (!catalog.IsSupportedStructFieldType(field.CSharpType))
{
_metadataErrors.AddError($"Thrift class '{this.StructName}' field '{name}({id})' type '{field.CSharpType}' is not a supported C# type.");
isSupportedType = false;
// only report the error once
break;
}
}
// fields must have the same type
if (isSupportedType)
{
HashSet <IThriftTypeReference> types = new HashSet <IThriftTypeReference>();
foreach (FieldMetadata field in fields)
{
types.Add(catalog.GetFieldThriftTypeReference(field));
}
if (types.Count > 1)
{
_metadataErrors.AddError($"Thrift class '{this.StructName}' field '{name}({id})' has multiple types: {String.Join(", ", types)}");
}
}
}
protected void NormalizeThriftFields(ThriftCatalog catalog)
{
// assign all fields an id (if possible)
var fieldsWithConflictingIds = InferThriftFieldIds();
// group fields by id
var fieldsById = _fields.GroupBy(f => f.Id);
foreach (var entry in fieldsById)
{
var fields = entry;
//fields must have an id
if (entry.Key == short.MinValue)
{
var names = fields.Select(FieldMetadata.GetOrExtractThriftFieldName());
foreach (String n in names)
{
// only report errors for fields that don't have conflicting ids
if (!fieldsWithConflictingIds.Contains(n))
{
this.MetadataErrors.AddError($"Thrift class '{StructName}' fields {String.Join(", ", names)} do not have an id.");
}
}
continue;
}
short fieldId = entry.Key;
// ensure all fields for this ID have the same name
String fieldName = ExtractFieldName(fieldId, fields);
foreach (FieldMetadata field in fields)
{
field.Name = fieldName;
}
// ensure all fields for this ID have the same requiredness
ThriftFieldAttribute.Requiredness requiredness = ExtractFieldRequiredness(fieldId, fieldName, fields);
foreach (FieldMetadata field in fields)
{
if (field.Requiredness != ThriftFieldAttribute.Requiredness.Unspecified)
{
field.Requiredness = requiredness;
}
else
{
field.Requiredness = (catalog.IsNullable(field.CSharpType)) ? ThriftFieldAttribute.Requiredness.Optional : ThriftFieldAttribute.Requiredness.Required;
}
}
// We need to do the isLegacyId check in two places. We've already done this
// process for fields which had multiple `@ThriftField` annotations when we
// assigned them all the same ID. It doesn't hurt to do it again. On the other
// hand, we need to do it now to catch the fields which only had a single
// @ThriftAnnotation, because inferThriftFieldIds skipped them.
//boolean isLegacyId = extractFieldIsLegacyId(fieldId, fieldName, fields);
//for (FieldMetadata field : fields)
//{
// field.setIsLegacyId(isLegacyId);
//}
var idlAnnotations = ExtractFieldIdlAnnotations(fieldId, fields);
foreach (FieldMetadata field in fields)
{
field.IdlAnnotations = idlAnnotations;
}
// ensure all fields for this ID have the same non-null get for isRecursiveReference
bool isRecursiveReference = ExtractFieldIsRecursiveReference(fieldId, fields);
foreach (FieldMetadata field in fields)
{
field.IsRecursiveReference = isRecursiveReference;
}
// verify fields have a supported java type and all fields
// for this ID have the same thrift type
VerifyFieldType(fieldId, fieldName, fields, catalog);
}
}
public RecursiveThriftTypeReference(ThriftCatalog catalog, Type javaType)
{
this.catalog = catalog;
this.CSharpType = javaType;
this.ProtocolType = catalog.GetThriftProtocolType(javaType);
}