/// <summary>
/// 构造一个属性的属性
/// </summary>
/// <param name="Col"></param>
/// <returns></returns>
protected virtual string GeneratePropertyAttribute(Column Col)
{
if (Col.IsPrimaryKey)
{
PrimaryKeyMappingAttribute Attribute = new PrimaryKeyMappingAttribute();
Attribute.ColumnName = Col.Name;
Attribute.PropertyName = GeneratePropertyName(Col);
Attribute.FieldType = DataTypeConvert.ConvertToFieldType((ADOType)Col.ADOType);
Attribute.FieldLength = (int)Col.FieldLength;
Attribute.Remark = Col.Comment;
return(String.Format(PropertyAttribute, "PrimaryKeyMapping", Attribute.ToString()));
}
else
{
FieldMappingAttribute Attribute = new FieldMappingAttribute();
Attribute.ColumnName = Col.Name;
Attribute.PropertyName = GeneratePropertyName(Col);
Attribute.FieldType = DataTypeConvert.ConvertToFieldType((ADOType)Col.ADOType);//
Attribute.IsNullable = Col.CanBeNull;
Attribute.FieldLength = (int)Col.FieldLength;
Attribute.DefauleValue = Col.Expression;
Attribute.Remark = Col.Comment;
return(String.Format(PropertyAttribute, "FieldMapping", Attribute.ToString()));
}
}
public void FieldTypeToWireTypeMapping()
{
foreach (FieldInfo field in typeof(FieldType).GetFields(BindingFlags.Static | BindingFlags.Public))
{
FieldType fieldType = (FieldType)field.GetValue(null);
FieldMappingAttribute mapping = (FieldMappingAttribute)field.GetCustomAttributes(typeof(FieldMappingAttribute), false)[0];
Assert.AreEqual(mapping.WireType, WireFormat.GetWireType(fieldType));
}
}
public ExtensionDescriptorLite(string fullName, IEnumLiteMap enumTypeMap, int number, FieldType type, object defaultValue, bool isRepeated, bool isPacked)
{
this.fullName = fullName;
this.enumTypeMap = enumTypeMap;
this.number = number;
this.type = type;
this.mapType = FieldMappingAttribute.MappedTypeFromFieldType(type);
this.isRepeated = isRepeated;
this.isPacked = isPacked;
this.defaultValue = defaultValue;
}
protected IEnumerable <FieldToPropertyMapping> GetFieldMappings()
{
var properties = typeof(TEntity).GetProperties();
foreach (var property in properties)
{
object[] spFieldMappingAttributes = property
.GetCustomAttributes(typeof(FieldMappingAttribute), false);
FieldMappingAttribute mapping = spFieldMappingAttributes
.Cast <FieldMappingAttribute>()
.FirstOrDefault();
if (mapping is null)
{
continue;
}
yield return(new FieldToPropertyMapping(
mapping.FieldName, property, mapping.Converter, mapping.IsReadOnly));
}
}
public void Process(FieldDef field, FieldMappingAttribute attribute) => ProcessMappingName(field, attribute.Name, ValidationRule.Field);
protected override bool ParseUnknownField(CodedInputStream input,
ExtensionRegistry extensionRegistry, uint tag)
{
FieldSet extensions = MessageBeingBuilt.Extensions;
WireFormat.WireType wireType = WireFormat.GetTagWireType(tag);
int fieldNumber = WireFormat.GetTagFieldNumber(tag);
IGeneratedExtensionLite extension = extensionRegistry[DefaultInstanceForType, fieldNumber];
bool unknown = false;
bool packed = false;
if (extension == null)
{
unknown = true; // Unknown field.
}
else if (wireType == FieldMappingAttribute.WireTypeFromFieldType(extension.Descriptor.FieldType, false /* isPacked */))
{
packed = false; // Normal, unpacked value.
}
else if (extension.Descriptor.IsRepeated &&
//?? just returns true ?? extension.Descriptor.type.isPackable() &&
wireType == FieldMappingAttribute.WireTypeFromFieldType(extension.Descriptor.FieldType, true /* isPacked */))
{
packed = true; // Packed value.
}
else
{
unknown = true; // Wrong wire type.
}
if (unknown) // Unknown field or wrong wire type. Skip.
{
return(input.SkipField(tag));
}
if (packed)
{
int length = (int)Math.Min(int.MaxValue, input.ReadRawVarint32());
int limit = input.PushLimit(length);
if (extension.Descriptor.FieldType == FieldType.Enum)
{
while (!input.ReachedLimit)
{
int rawValue = input.ReadEnum();
Object value =
extension.Descriptor.EnumType.FindValueByNumber(rawValue);
if (value == null)
{
// If the number isn't recognized as a valid value for this
// enum, drop it (don't even add it to unknownFields).
return(true);
}
extensions.AddRepeatedField(extension.Descriptor, value);
}
}
else
{
while (!input.ReachedLimit)
{
Object value = input.ReadPrimitiveField(extension.Descriptor.FieldType);
extensions.AddRepeatedField(extension.Descriptor, value);
}
}
input.PopLimit(limit);
}
else
{
Object value;
switch (extension.Descriptor.MappedType)
{
case MappedType.Message: {
IBuilderLite subBuilder = null;
if (!extension.Descriptor.IsRepeated)
{
IMessageLite existingValue = extensions[extension.Descriptor] as IMessageLite;
if (existingValue != null)
{
subBuilder = existingValue.WeakToBuilder();
}
}
if (subBuilder == null)
{
subBuilder = extension.MessageDefaultInstance.WeakCreateBuilderForType();
}
if (extension.Descriptor.FieldType == FieldType.Group)
{
input.ReadGroup(extension.Number, subBuilder, extensionRegistry);
}
else
{
input.ReadMessage(subBuilder, extensionRegistry);
}
value = subBuilder.WeakBuild();
break;
}
case MappedType.Enum:
int rawValue = input.ReadEnum();
value = extension.Descriptor.EnumType.FindValueByNumber(rawValue);
// If the number isn't recognized as a valid value for this enum,
// drop it.
if (value == null)
{
return(true);
}
break;
default:
value = input.ReadPrimitiveField(extension.Descriptor.FieldType);
break;
}
if (extension.Descriptor.IsRepeated)
{
extensions.AddRepeatedField(extension.Descriptor, value);
}
else
{
extensions[extension.Descriptor] = value;
}
}
return(true);
}
