How to use

createFromDataSchema

method

in

com.linkedin.pegasus.generator.spec.ClassTemplateSpec

private ClassTemplateSpec createFromDataSchema(DataSchema schema)
{
 if (schema instanceof MapDataSchema)
 {
  return new CourierMapTemplateSpec((MapDataSchema) schema);
 }
 return ClassTemplateSpec.createFromDataSchema(schema);
}

/** Convenience wrapper around {@link #createTypeSyntax(ClassTemplateSpec)}. */
private TSTypeSyntax createTypeSyntax(DataSchema schema) {
 return createTypeSyntax(ClassTemplateSpec.createFromDataSchema(schema));
}

 private ClassTemplateSpec _refType() {
  return ClassTemplateSpec.createFromDataSchema(_dataSchema.getRef());
 }
}

private static String toUnionLiteral(DataMap unionMap, UnionDataSchema unionSchema) {
 Iterator<Map.Entry<String, Object>> iter = unionMap.entrySet().iterator();
 if (!iter.hasNext()) {
  throw new IllegalArgumentException();
 }
 Map.Entry<String, Object> entry = iter.next();
 DataSchema memberType = unionSchema.getTypeByName(entry.getKey());
 if (memberType == null) {
  throw new IllegalArgumentException("Unrecognized union member in literal: " + entry.getKey());
 }
 StringBuilder sb = new StringBuilder();
 sb.append(".");
 sb.append(toUnionMemberName(ClassTemplateSpec.createFromDataSchema(memberType)));
 sb.append("(");
 sb.append(toLiteral(memberType, entry.getValue()));
 sb.append(")");
 return sb.toString();
}

private ClassTemplateSpec getDereferencedType(CustomInfoSpec customInfo, ClassTemplateSpec fallback) {
 if (customInfo != null) {
  DataSchema refSchema = customInfo.getCustomSchema().getDereferencedDataSchema();
  return ClassTemplateSpec.createFromDataSchema(refSchema);
 } else {
  return fallback;
 }
}

if (customInfo != null) {
 DataSchema refSchema = customInfo.getCustomSchema().getDereferencedDataSchema();
 fieldType = ClassTemplateSpec.createFromDataSchema(refSchema);
 String coercer = customInfo.getCoercerClass().getClassName();
 String uncoerced = toLiteral(fieldType.getSchema(), field.getSchemaField().getDefault());