private void check(DataSchema older, DataSchema newer) {
Checked toCheck = new Checked(older, newer);
if (_checked.contains(toCheck)) {
return;
}
_checked.add(toCheck);
if (older == newer) {
return;
}
int pathCount = 1;
if (_options.getMode() == CompatibilityOptions.Mode.DATA) {
older = older.getDereferencedDataSchema();
while (newer.getType() == DataSchema.Type.TYPEREF) {
TyperefDataSchema typerefDataSchema = ((TyperefDataSchema) newer);
_path.addLast(typerefDataSchema.getFullName());
_path.addLast(DataSchemaConstants.REF_KEY);
pathCount++;
newer = typerefDataSchema.getRef();
}
}
if (newer.getType() == DataSchema.Type.TYPEREF) {
_path.addLast(((TyperefDataSchema) newer).getFullName());
} else {
_path.addLast(newer.getUnionMemberKey());
}
switch (newer.getType()) {
case TYPEREF:
if (isSameType(older, newer))
checkTyperef((TyperefDataSchema) older, (TyperefDataSchema) newer);
break;
case RECORD:
if (isSameType(older, newer))
checkRecord((RecordDataSchema) older, (RecordDataSchema) newer);
break;
case ARRAY:
if (isSameType(older, newer)) checkArray((ArrayDataSchema) older, (ArrayDataSchema) newer);
break;
case MAP:
if (isSameType(older, newer)) checkMap((MapDataSchema) older, (MapDataSchema) newer);
break;
case ENUM:
if (isSameType(older, newer)) checkEnum((EnumDataSchema) older, (EnumDataSchema) newer);
break;
case FIXED:
if (isSameType(older, newer)) checkFixed((FixedDataSchema) older, (FixedDataSchema) newer);
break;
case UNION:
if (isSameType(older, newer)) checkUnion((UnionDataSchema) older, (UnionDataSchema) newer);
break;
default:
if (newer instanceof PrimitiveDataSchema) checkPrimitive(older, newer);
else
throw new IllegalStateException(
"Unknown schema type "
+ newer.getType()
+ ", checking old schema "
+ older
+ ", new schema "
+ newer);
break;
}
for (; pathCount > 0; pathCount--) {
_path.removeLast();
}
return;
}
private void checkTyperef(TyperefDataSchema older, TyperefDataSchema newer) {
checkName(older, newer);
_path.addLast(DataSchemaConstants.REF_KEY);
check(older.getDereferencedDataSchema(), newer.getDereferencedDataSchema());
_path.removeLast();
}