private Dictionary <string, Metadata.Property> CreateEntityProperties(Type entityType, HashSet <Assembly> assemblies)
{
var propMetas = new Dictionary <string, Metadata.Property>(StringComparer.InvariantCultureIgnoreCase);
foreach (var prop in entityType
.GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.DeclaredOnly)
// Virtual properties are skipped, they are used for lazy loading which is not supported for now
// Ignore-properties are skipped, they are meant for internal/database usage
.Where(it => !it.GetGetMethod().IsVirtual&& !it.IsDefined(typeof(IgnoreAttribute)))
)
{
string propName = ExternalNameAttribute.GetName(prop);
if (ServiceVersionAttribute.CheckVersion(prop, version, ref propName))
{
var propMeta = new Metadata.Property
{
Name = propName.ToCamelCase(),
PropertyType = ConvertType(prop.PropertyType, assemblies),
PropertyInfo = prop,
IsRequired = prop.GetCustomAttribute <RequiredAttribute>() != null,
IsOptional = prop.GetCustomAttribute <OptionalAttribute>() != null,
MaxLength = prop.GetCustomAttribute <StringLengthAttribute>()?.MaximumLength
};
propMetas.Add(propMeta.Name, propMeta);
}
}
return(propMetas);
}
private Metadata.Command BuildCommand(string prefix, Metadata.Service service, MethodInfo command, HashSet <Assembly> assemblies)
{
string commandName = ExternalNameAttribute.GetName(command);
if (ServiceVersionAttribute.CheckVersion(command, version, ref commandName))
{
var parMetas = new List <Metadata.Parameter>();
bool isHttpRaw = false;
foreach (var par in command.GetParameters())
{
if (par.ParameterType == typeof(Microsoft.AspNetCore.Http.HttpContext))
{
isHttpRaw = true;
var parMeta = new Metadata.Parameter
{
IsOptional = par.IsOptional,
IsPlatformSpecific = true,
ParameterType = new Metadata.TypeInfo {
Type = par.ParameterType
},
ParameterInfo = par
};
parMetas.Add(parMeta);
}
else
{
string parName = ExternalNameAttribute.GetName(par);
var parMeta = new Metadata.Parameter
{
Name = parName,
IsOptional = par.IsOptional,
ParameterType = ConvertType(par.ParameterType, assemblies),
ParameterInfo = par
};
parMetas.Add(parMeta);
}
}
var commandMeta = new Metadata.Command
{
Name = commandName.ToCamelCase(),
Fullname = prefix + commandName.ToLower(),
Parameters = parMetas,
ReturnType = ConvertType(command.ReturnType, assemblies),
MethodInfo = command,
Service = service,
IsQuery = command.IsDefined(typeof(QueryAttribute)),
IsHttpRaw = isHttpRaw
};
return(commandMeta);
}
return(null);
}
private Metadata.Entity CreateEntityMeta(Type entityType, HashSet <Assembly> assemblies)
{
string entityName = ExternalNameAttribute.GetName(entityType);
if (ServiceVersionAttribute.CheckVersion(entityType, version, ref entityName))
{
Metadata.Entity parentEntity = null;
if (entityType.BaseType != null && entityType.BaseType.IsClass && entityType.BaseType != typeof(Object))
{
parentEntity = GetOrAddEntityMeta(entityType.BaseType, assemblies);
if (entities.TryGetValue(entityType, out Metadata.Entity existingEntity))
{
return(existingEntity);
}
}
var entity = new Metadata.Entity
{
Name = entityName,
Properties = CreateEntityProperties(entityType, assemblies),
Parent = parentEntity,
ParentEntity = parentEntity?.Name,
Type = entityType
};
entities.Add(entityType, entity);
var derivedTypes = assemblies.SelectMany(it => it.GetTypes().Where(tp => entityType.IsAssignableFrom(tp) && !tp.IsAbstract && tp.IsPublic));
foreach (var derivedType in derivedTypes)
{
GetOrAddEntityMeta(derivedType, assemblies);
}
return(entity);
}
else
{
throw new MetadataBuilderException($"Entity {entityName} not available to version {version}, but still refered to");
}
}
private Metadata.Service BuildService(Type service, string prefix, HashSet <Assembly> assemblies)
{
string serviceName = ExternalNameAttribute.GetName(service);
if (ServiceVersionAttribute.CheckVersion(service, version, ref serviceName))
{
var commandMetas = new Dictionary <string, Metadata.Command>(StringComparer.InvariantCultureIgnoreCase);
var serviceMeta = new Metadata.Service {
Name = serviceName, Type = service
};
foreach (var command in service.GetMethods(BindingFlags.Instance | BindingFlags.Public | BindingFlags.DeclaredOnly))
{
var commandMeta = BuildCommand($"{prefix}.v{version}.{serviceName}.".ToLower(), serviceMeta, command, assemblies);
if (commandMeta != null)
{
commandMetas.Add(commandMeta.Name, commandMeta);
}
}
serviceMeta.Commands = commandMetas;
return(serviceMeta);
}
return(null);
}
private Metadata.Enum GetOrAddEnumMeta(Type enumType)
{
if (!enums.TryGetValue(enumType, out Metadata.Enum metaEnum))
{
string enumName = ExternalNameAttribute.GetName(enumType);
if (ServiceVersionAttribute.CheckVersion(enumType, version, ref enumName))
{
var enumValues = new Dictionary <string, Metadata.EnumValue>(StringComparer.InvariantCultureIgnoreCase);
foreach (var field in enumType.GetFields())
{
if (field.IsLiteral)
{
int value = (int)field.GetValue(null);
string fieldName = ExternalNameAttribute.GetName(field);
if (ServiceVersionAttribute.CheckVersion(field, version, ref fieldName))
{
var enumValue = new Metadata.EnumValue
{
Name = fieldName,
Value = value,
FieldInfo = field
};
enumValues.Add(enumValue.Name, enumValue);
}
}
}
metaEnum = new Metadata.Enum
{
Name = enumName,
Values = enumValues,
Type = enumType
};
enums.Add(enumType, metaEnum);
}
}
return(metaEnum);
}