+/*
+ * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.mdsal.binding.dom.codec.impl;
+
+import static java.util.Objects.requireNonNull;
+
+import java.util.concurrent.ExecutionException;
+import org.eclipse.jdt.annotation.NonNull;
+import org.opendaylight.mdsal.binding.spec.reflect.BindingReflections;
+import org.opendaylight.yangtools.concepts.IllegalArgumentCodec;
+import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
+import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition;
+import org.opendaylight.yangtools.yang.model.api.type.EnumTypeDefinition;
+
+/**
+ * Marker interface for codecs, which functionality will not be affected by schema change (introduction of new YANG
+ * modules) they may have one static instance generated when first time needed.
+ */
+// FIXME: IllegalArgumentCodec is perhaps not appropriate here due to null behavior
+interface SchemaUnawareCodec extends IllegalArgumentCodec<Object, Object> {
+ /**
+ * No-op Codec, Java YANG Binding uses same types as NormalizedNode model for base YANG types, representing numbers,
+ * binary, strings and empty.
+ */
+ @NonNull SchemaUnawareCodec NOOP_CODEC = new SchemaUnawareCodec() {
+ @Override
+ public Object serialize(final Object input) {
+ return input;
+ }
+
+ @Override
+ public Object deserialize(final Object input) {
+ return input;
+ }
+ };
+
+ static @NonNull SchemaUnawareCodec of(final Class<?> typeClz, final TypeDefinition<?> def) {
+ if (BindingReflections.isBindingClass(typeClz)) {
+ return getCachedSchemaUnawareCodec(typeClz, def);
+ }
+ return NOOP_CODEC;
+ }
+
+ private static @NonNull SchemaUnawareCodec getCachedSchemaUnawareCodec(final Class<?> typeClz,
+ final TypeDefinition<?> def) {
+ // FIXME: extract this only when really needed
+ var rootType = requireNonNull(def);
+ while (true) {
+ final var base = rootType.getBaseType();
+ if (base != null) {
+ rootType = base;
+ } else {
+ break;
+ }
+ }
+
+ try {
+ if (rootType instanceof EnumTypeDefinition) {
+ return EnumerationCodec.of(typeClz, (EnumTypeDefinition) rootType);
+ } else if (rootType instanceof BitsTypeDefinition) {
+ return BitsCodec.of(typeClz, (BitsTypeDefinition) rootType);
+ } else {
+ return EncapsulatedValueCodec.of(typeClz, def);
+ }
+ } catch (ExecutionException e) {
+ throw new IllegalStateException(e);
+ }
+ }
+}