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.collect.ImmutableBiMap;
12 import java.util.HashMap;
14 import java.util.concurrent.Callable;
15 import org.opendaylight.yangtools.binding.data.codec.impl.ValueTypeCodec.SchemaUnawareCodec;
16 import org.opendaylight.yangtools.yang.binding.BindingMapping;
17 import org.opendaylight.yangtools.yang.model.api.type.EnumTypeDefinition;
18 import org.opendaylight.yangtools.yang.model.api.type.EnumTypeDefinition.EnumPair;
20 final class EnumerationCodec extends ReflectionBasedCodec implements SchemaUnawareCodec {
21 private final ImmutableBiMap<String, Enum<?>> yangValueToBinding;
23 EnumerationCodec(final Class<? extends Enum<?>> enumeration, final Map<String, Enum<?>> schema) {
25 yangValueToBinding = ImmutableBiMap.copyOf(schema);
28 static Callable<EnumerationCodec> loader(final Class<?> returnType, final EnumTypeDefinition enumSchema) {
29 Preconditions.checkArgument(Enum.class.isAssignableFrom(returnType));
30 @SuppressWarnings({ "rawtypes", "unchecked" })
31 final Class<? extends Enum<?>> enumType = (Class) returnType;
33 Map<String, Enum<?>> nameToValue = new HashMap<>();
34 for (Enum<?> enumValue : enumType.getEnumConstants()) {
35 nameToValue.put(enumValue.toString(), enumValue);
37 Map<String, Enum<?>> yangNameToBinding = new HashMap<>();
38 for (EnumPair yangValue : enumSchema.getValues()) {
39 final String bindingName = BindingMapping.getClassName(yangValue.getName());
40 final Enum<?> bindingVal = nameToValue.get(bindingName);
41 yangNameToBinding.put(yangValue.getName(), bindingVal);
43 return new EnumerationCodec(enumType, yangNameToBinding);
48 public Object deserialize(final Object input) {
49 Enum<?> value = yangValueToBinding.get(input);
50 Preconditions.checkArgument(value != null, "Invalid enumeration value %s. Valid values are %s", input,
51 yangValueToBinding.keySet());
56 public Object serialize(final Object input) {
57 Preconditions.checkArgument(getTypeClass().isInstance(input), "Input must be instance of %s", getTypeClass());
58 return yangValueToBinding.inverse().get(input);