2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.yangtools.binding.data.codec.impl;
10 import com.google.common.base.Preconditions;
11 import com.google.common.base.Throwables;
12 import java.lang.invoke.MethodHandle;
13 import java.lang.invoke.MethodHandles;
14 import java.lang.invoke.MethodHandles.Lookup;
15 import java.lang.invoke.MethodType;
16 import java.lang.reflect.Method;
17 import java.util.concurrent.Callable;
18 import org.opendaylight.yangtools.binding.data.codec.impl.ValueTypeCodec.SchemaUnawareCodec;
22 * Derived YANG types are just immutable value holders for simple value
23 * types, which are same as in NormalizedNode model.
26 final class EncapsulatedValueCodec extends ReflectionBasedCodec implements SchemaUnawareCodec {
27 private static final Lookup LOOKUP = MethodHandles.publicLookup();
28 private static final MethodType OBJ_METHOD = MethodType.methodType(Object.class, Object.class);
29 private final MethodHandle constructor;
30 private final MethodHandle getter;
32 private EncapsulatedValueCodec(final Class<?> typeClz, final MethodHandle constructor, final MethodHandle getter) {
34 this.constructor = Preconditions.checkNotNull(constructor);
35 this.getter = Preconditions.checkNotNull(getter);
38 static Callable<EncapsulatedValueCodec> loader(final Class<?> typeClz) {
39 return new Callable<EncapsulatedValueCodec>() {
41 public EncapsulatedValueCodec call() throws Exception {
42 final Method m = typeClz.getMethod("getValue");
43 final MethodHandle getter = LOOKUP.unreflect(m).asType(OBJ_METHOD);
44 final MethodHandle constructor = LOOKUP.findConstructor(typeClz, MethodType.methodType(void.class, m.getReturnType())).asType(OBJ_METHOD);
45 return new EncapsulatedValueCodec(typeClz, constructor, getter);
51 public Object deserialize(final Object input) {
53 return constructor.invokeExact(input);
54 } catch (Throwable e) {
55 throw Throwables.propagate(e);
60 public Object serialize(final Object input) {
62 return getter.invokeExact(input);
63 } catch (Throwable e) {
64 throw Throwables.propagate(e);