private static ThriftFieldMetadata CreateFieldMetadata(ThriftCatalog catalog, int index, ParameterInfo parameterInfo)
{
ThriftFieldAttribute thriftField = parameterInfo.GetCustomAttribute <ThriftFieldAttribute>();
short parameterId = short.MinValue;
String parameterName = parameterInfo.Name;
Requiredness parameterRequiredness = Requiredness.Unspecified;
if (thriftField != null)
{
parameterId = thriftField.Id;
parameterRequiredness = thriftField.Required;
if (!String.IsNullOrWhiteSpace(thriftField.Name))
{
parameterName = thriftField.Name.Trim();
}
}
if (parameterId == short.MinValue)
{
parameterId = (short)(index + 1);
}
ThriftType thriftType = catalog.GetThriftType(parameterInfo.ParameterType);
var parameterInjection = new ThriftParameterInjection(parameterId, parameterName, index, parameterInfo.ParameterType);
if (parameterRequiredness == Requiredness.Unspecified)
{
// There is only one field injection used to build metadata for method parameters, and if a
// single injection point has UNSPECIFIED requiredness, that resolves to NONE.
parameterRequiredness = Requiredness.None;
}
ThriftFieldMetadata fieldMetadata = new ThriftFieldMetadata(
parameterId,
false /* recursiveness */,
parameterRequiredness,
new DefaultThriftTypeReference(thriftType),
parameterName,
FieldKind.ThriftField,
new IThriftInjection[] { parameterInjection });
return(fieldMetadata);
}
protected override ThriftFieldMetadata BuildField(IEnumerable <FieldMetadata> input)
{
short id = -1;
//IDictionary<String, String> idlAnnotations = null;
String name = null;
Requiredness requiredness = Requiredness.Unspecified;
bool recursive = false;
IThriftTypeReference thriftTypeReference = null;
// process field injections and extractions
List <IThriftInjection> injections = new List <IThriftInjection>();
IThriftExtraction extraction = null;
foreach (FieldMetadata fieldMetadata in input)
{
id = fieldMetadata.Id;
name = fieldMetadata.Name;
recursive = fieldMetadata.IsRecursiveReference ?? false;
requiredness = fieldMetadata.Requiredness;
//idlAnnotations = fieldMetadata.getIdlAnnotations();
thriftTypeReference = this.Catalog.GetFieldThriftTypeReference(fieldMetadata);
FieldInjection fieldInjection = fieldMetadata as FieldInjection;
if (fieldInjection != null)
{
injections.Add(new ThriftFieldInjection(fieldInjection.Id,
fieldInjection.Name,
fieldInjection.Field,
fieldInjection.Type));
}
else if (fieldMetadata is ParameterInjection)
{
ParameterInjection parameterInjection = (ParameterInjection)fieldMetadata;
injections.Add(new ThriftParameterInjection(
parameterInjection.Id,
parameterInjection.Name,
parameterInjection.ParameterIndex,
fieldMetadata.CSharpType
));
}
else if (fieldMetadata is FieldExtractor)
{
FieldExtractor fieldExtractor = (FieldExtractor)fieldMetadata;
extraction = new ThriftFieldExtractor(
fieldExtractor.Id, fieldExtractor.Name,
fieldExtractor.Type,
fieldExtractor.Field,
fieldExtractor.CSharpType);
}
else if (fieldMetadata is MethodExtractor)
{
MethodExtractor methodExtractor = (MethodExtractor)fieldMetadata;
extraction = new ThriftMethodExtractor(
methodExtractor.Id,
methodExtractor.Name,
methodExtractor.Type,
methodExtractor.Method,
methodExtractor.CSharpType);
}
}
// add type coercion
TypeCoercion coercion = null;
if (!thriftTypeReference.Recursive && thriftTypeReference.Get().IsCoerced)
{
coercion = this.Catalog.GetDefaultCoercion(thriftTypeReference.Get().CSharpType);
}
if (recursive && requiredness != Requiredness.Optional)
{
this.MetadataErrors.AddError($"Struct '{this.StructName}' field '{name}' is recursive but not marked optional");
}
ThriftFieldMetadata thriftFieldMetadata = new ThriftFieldMetadata(
id,
recursive,
requiredness,
//idlAnnotations,
thriftTypeReference,
name,
FieldKind.ThriftField,
injections,
extraction: extraction,
coercion: coercion
);
return(thriftFieldMetadata);
}
//private IEnumerable<String> documentation;
public ThriftFieldMetadata(
short id,
bool isRecursiveReference,
Requiredness requiredness,
//IEnumerable<KeyValuePair<String, String>> idlAnnotations,
IThriftTypeReference thriftTypeReference,
String name,
FieldKind fieldKind,
IEnumerable <IThriftInjection> injections = null,
ThriftConstructorInjection constructorInjection = null,
ThriftMethodInjection methodInjection = null,
IThriftExtraction extraction = null,
TypeCoercion coercion = null
)
{
Guard.ArgumentNotNull(thriftTypeReference, nameof(thriftTypeReference));
Guard.ArgumentNotNull(fieldKind, nameof(fieldKind));
Guard.ArgumentNullOrWhiteSpaceString(name, nameof(name));
Guard.ArgumentNotNull(thriftTypeReference, nameof(thriftTypeReference));
Guard.ArgumentNullOrWhiteSpaceString(name, nameof(name));
//Guard.ArgumentNotNull(constructorInjection, nameof(constructorInjection));
//Guard.ArgumentNotNull(methodInjection, nameof(methodInjection));
//Guard.ArgumentNotNull(extraction, nameof(extraction));
//Guard.ArgumentNotNull(coercion, nameof(coercion));
this.IsRecursiveReference = isRecursiveReference;
this.Required = requiredness;
this._thriftTypeReference = thriftTypeReference;
this._fieldKind = fieldKind;
this.Name = name;
this.Injections = injections ?? Enumerable.Empty <IThriftInjection>();
this._constructorInjection = constructorInjection;
this._methodInjection = methodInjection;
this._extraction = extraction;
this._coercion = coercion;
switch (fieldKind)
{
case FieldKind.ThriftField:
Guard.ArgumentCondition(id >= 0, "isLegacyId must be specified on fields with negative IDs", nameof(id));
break;
case FieldKind.ThriftUnionId:
Guard.ArgumentCondition(id == short.MinValue, "thrift union id must be short.MinValue", nameof(id));
break;
}
Guard.ArgumentCondition(injections.Any() ||
extraction != null ||
constructorInjection != null ||
methodInjection != null, "A thrift field must have an injection or extraction point");
this.Id = id;
if (extraction != null)
{
if (extraction is ThriftFieldExtractor)
{
ThriftFieldExtractor e = (ThriftFieldExtractor)extraction;
//this.documentation = ThriftCatalog.getThriftDocumentation(e.getField());
}
else if (extraction != null && extraction is ThriftMethodExtractor)
{
ThriftMethodExtractor e = (ThriftMethodExtractor)extraction;
//this.documentation = ThriftCatalog.getThriftDocumentation(e.getMethod());
}
}
//this.idlAnnotations = idlAnnotations;
}
/// <summary>
/// 创建 <see cref="ThriftFieldAttribute"/> 类的新实例。
/// </summary>
/// <param name="id">表示字段的顺序，在一个 struct 内应该保持唯一。</param>
public ThriftFieldAttribute(ThriftIdlAnnotationAttribute[] idlAnnotations, short value = short.MinValue, bool isLegacyId = false, String name = "", Requiredness requiredness = Requiredness.UNSPECIFIED, Recursiveness isRecursive = Recursiveness.UNSPECIFIED)
{
this.IdlAnnotations = idlAnnotations?.ToArray();
this.Value = value;
this.IsLegacyId = isLegacyId;
this.IsRecursive = isRecursive;
this.Requiredness = requiredness;
this.Name = name;
}
