public String GetSpecialProperties(ElementMetadata meta)
{
StringBuilder sb = new StringBuilder();
if (!String.IsNullOrEmpty(meta.Id))
{
sb.Append($"$id: '{meta.Id}',");
}
if (!String.IsNullOrEmpty(meta.Name))
{
sb.Append($"$name: '{meta.Name}',");
}
if (!String.IsNullOrEmpty(meta.RowNumber))
{
sb.Append($"$rowNo: '{meta.RowNumber}',");
}
if (!String.IsNullOrEmpty(meta.HasChildren))
{
sb.Append($"$hasChildren: '{meta.HasChildren}',");
}
if (sb.Length == 0)
{
return(null);
}
sb.RemoveTailComma();
return(",\n" + sb.ToString());
}
void ProcessComplexMetadata(FieldInfo fieldInfo, ElementMetadata elem, DataType dt)
{
// create metadata for nested type
var innerElem = GetOrCreateMetadata(fieldInfo.TypeName);
var fna = fieldInfo.PropertyName.Split('.');
if (fna.Length != 2)
{
throw new DataLoaderException($"Invalid complex name {fieldInfo.PropertyName}");
}
elem.AddField(new FieldInfo($"{fna[0]}!{fieldInfo.TypeName}"), DataType.Undefined);
innerElem.AddField(new FieldInfo(fieldInfo, fna[1]), dt);
}
ElementMetadata GetOrCreateMetadata(String typeName)
{
if (_metadata == null)
{
_metadata = new Dictionary <String, ElementMetadata>();
}
ElementMetadata elemMeta;
if (_metadata.TryGetValue(typeName, out elemMeta))
{
return(elemMeta);
}
elemMeta = new ElementMetadata();
_metadata.Add(typeName, elemMeta);
return(elemMeta);
}
public StringBuilder GetProperties(ElementMetadata meta)
{
var sb = new StringBuilder();
foreach (var fd in meta.Fields)
{
var fm = fd.Value;
sb.AppendLine()
.Append(fd.Key)
.Append(':');
// TODO: special data type
if (fm.ItemType == FieldType.Array)
{
sb.Append(fm.RefObject + "Array");
}
else if (fm.ItemType == FieldType.Tree)
{
sb.Append(fm.RefObject + "Array");
}
else if (fm.ItemType == FieldType.Object)
{
sb.Append(fm.RefObject);
}
else if (fm.DataType == DataType.Undefined)
{
throw new DataLoaderException($"Invalid data type for {meta.Name}.{fd.Key}");
}
else
{
sb.Append(fm.DataType);
}
sb.Append(",");
}
if (sb.Length == 0)
{
return(sb);
}
sb.RemoveTailComma();
return(sb);
}
public StringBuilder GetOneConstructor(String name, ElementMetadata ctor)
{
var sb = new StringBuilder();
String arrItem = ctor.IsArrayType ? "true" : "false";
sb.AppendLine($"function {name}(source, path, parent) {{")
.AppendLine("\tcmn.createObject(this, source, path, parent);")
.AppendLine("}")
// metadata
.Append($"cmn.defineObject({name}, {{props: {{")
.Append(GetProperties(ctor))
.Append("}")
.Append(GetSpecialProperties(ctor))
.AppendLine($"}}, {arrItem});");
if (ctor.IsArrayType)
{
sb.AppendLine($"function {name}Array(source, path, parent) {{")
.AppendLine($"return cmn.createArray(source, path, {name}, {name}Array, parent);")
.AppendLine("}");
}
return(sb);
}
