/// <summary>
/// Reads a property value from the given <see cref="BinaryReader"/>.
/// </summary>
/// <param name="reader">The reader, containing the data.</param>
/// <param name="recordInfo">The reflected field information.</param>
/// <param name="property">The property which will contain the data.</param>
/// <param name="elementType">The element type of the field. This is primarily used for reading arrays.</param>
/// <param name="version">The version of the record.</param>
/// <returns>The value that should be assigned to the property.</returns>
public static object ReadPropertyValue
(
BinaryReader reader,
RecordFieldInformation recordInfo,
PropertyInfo property,
Type elementType,
WarcraftVersion version
)
{
object fieldValue;
if (DBCInspector.IsPropertyForeignKey(property))
{
// Get the foreign key information
var foreignKeyAttribute = recordInfo.PropertyForeignKeyAttributes[property];
// Get the inner type
var keyType = GetUnderlyingStoredPrimitiveType(elementType);
var keyValue = reader.Read(keyType);
// Create the specific ForeignKey type
var genericKeyFieldType = typeof(ForeignKey <>);
var specificKeyFieldType = genericKeyFieldType.MakeGenericType(keyType);
fieldValue = Activator.CreateInstance
(
specificKeyFieldType,
foreignKeyAttribute.Database,
foreignKeyAttribute.Field,
keyValue
);
}
else if (elementType.IsEnum)
{
// Get the underlying type of the enum
var enumType = elementType.GetEnumUnderlyingType();
fieldValue = reader.Read(enumType);
}
else
{
if (elementType == typeof(LocalizedStringReference))
{
fieldValue = reader.Read(elementType, version);
}
else
{
fieldValue = reader.Read(elementType);
}
}
return(fieldValue);
}
/// <summary>
/// Initializes a new instance of the <see cref="RecordFieldInformation"/> class.
/// </summary>
/// <param name="recordType">The type of record to build the reflection data for.</param>
/// <param name="version">The version to build data for.</param>
/// <exception cref="ArgumentException">Thrown if the specified type is not a record type.</exception>
public RecordFieldInformation(Type recordType, WarcraftVersion version)
{
if (!recordType.IsSubclassOf(typeof(DBCRecord)))
{
throw new ArgumentException("The specified type was not a record type.", nameof(recordType));
}
if (!recordType.GetCustomAttributes().Any(a => a is DatabaseRecordAttribute))
{
throw new ArgumentException($"The record type {recordType.Name} was not decorated with the \"DatabaseRecord\" attribute.");
}
this.Type = recordType;
this.Version = version;
var orderer = new FieldOrderer(this.Version, DBCInspector.GetVersionRelevantProperties(this.Version, this.Type).ToList());
this.VersionRelevantProperties = orderer.ReorderProperties().ToList();
this.PropertyFieldAttributes = new Dictionary <PropertyInfo, RecordFieldAttribute>();
this.PropertyFieldArrayAttributes = new Dictionary <PropertyInfo, RecordFieldArrayAttribute>();
this.PropertyFieldArrayElementTypes = new Dictionary <PropertyInfo, Type>();
this.PropertyForeignKeyAttributes = new Dictionary <PropertyInfo, ForeignKeyInfoAttribute>();
foreach (var property in this.VersionRelevantProperties)
{
if (!property.CanWrite)
{
throw new ArgumentException("Property setter not found. Record properties must have a setter.");
}
var fieldInfoAttribute = DBCInspector.GetPropertyFieldAttribute(property);
this.PropertyFieldAttributes.Add(property, fieldInfoAttribute);
if (DBCInspector.IsPropertyFieldArray(property))
{
this.PropertyFieldArrayAttributes.Add(property, DBCInspector.GetVersionRelevantPropertyFieldArrayAttribute(this.Version, property));
this.PropertyFieldArrayElementTypes.Add(property, DBCInspector.GetFieldArrayPropertyElementType(property.PropertyType));
}
if (DBCInspector.IsPropertyForeignKey(property))
{
this.PropertyForeignKeyAttributes.Add(property, DBCInspector.GetForeignKeyInfo(property));
}
}
this.FieldCount = DBCInspector.GetPropertyCount(this.Version, this.Type);
this.Size = DBCInspector.GetRecordSize(this.Version, this.Type);
}