yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/codec/TypeDefinitionAwareCodec.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.yangtools.yang.data.impl.codec;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.base.Preconditions;
  12 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
  13 import org.opendaylight.yangtools.yang.model.api.type.BinaryTypeDefinition;
  14 import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition;
  15 import org.opendaylight.yangtools.yang.model.api.type.BooleanTypeDefinition;
  16 import org.opendaylight.yangtools.yang.model.api.type.DecimalTypeDefinition;
  17 import org.opendaylight.yangtools.yang.model.api.type.EmptyTypeDefinition;
  18 import org.opendaylight.yangtools.yang.model.api.type.EnumTypeDefinition;
  19 import org.opendaylight.yangtools.yang.model.api.type.IntegerTypeDefinition;
  20 import org.opendaylight.yangtools.yang.model.api.type.StringTypeDefinition;
  21 import org.opendaylight.yangtools.yang.model.api.type.UnionTypeDefinition;
  22 import org.opendaylight.yangtools.yang.model.api.type.UnsignedIntegerTypeDefinition;
  23 import org.opendaylight.yangtools.yang.model.util.DerivedType;
  24
  25 public abstract class TypeDefinitionAwareCodec<J, T extends TypeDefinition<T>> implements DataStringCodec<J> {
  26     private final Optional<T> typeDefinition;
  27     private final Class<J> inputClass;
  28
  29     @Override
  30     public Class<J> getInputClass() {
  31         return inputClass;
  32     }
  33
  34     protected TypeDefinitionAwareCodec(final Optional<T> typeDefinition, final Class<J> outputClass) {
  35         Preconditions.checkArgument(outputClass != null, "Output class must be specified.");
  36         this.typeDefinition = typeDefinition;
  37         this.inputClass = outputClass;
  38     }
  39
  40     public Optional<T> getTypeDefinition() {
  41         return typeDefinition;
  42     }
  43
  44     @SuppressWarnings({ "rawtypes", "unchecked" })
  45     public static final TypeDefinitionAwareCodec<Object, ? extends TypeDefinition<?>> from(final TypeDefinition typeDefinition) {
  46         return fromType(typeDefinition);
  47     }
  48
  49     @SuppressWarnings("unchecked")
  50     public static final <T extends TypeDefinition<T>> TypeDefinitionAwareCodec<?, T> fromType(final T typeDefinition) {
  51         final T normalizedType = (T) DerivedType.from(typeDefinition);
  52         @SuppressWarnings("rawtypes")
  53         final TypeDefinitionAwareCodec codec;
  54
  55         if (normalizedType instanceof BinaryTypeDefinition) {
  56             codec = BinaryStringCodec.from((BinaryTypeDefinition)normalizedType);
  57         } else if (normalizedType instanceof BitsTypeDefinition) {
  58             codec = BitsStringCodec.from((BitsTypeDefinition)normalizedType);
  59         } else if (normalizedType instanceof BooleanTypeDefinition) {
  60             codec = BooleanStringCodec.from((BooleanTypeDefinition)normalizedType);
  61         } else if (normalizedType instanceof DecimalTypeDefinition) {
  62             codec = DecimalStringCodec.from((DecimalTypeDefinition)normalizedType);
  63         } else if (normalizedType instanceof EmptyTypeDefinition) {
  64             codec = EmptyStringCodec.INSTANCE;
  65         } else if (normalizedType instanceof EnumTypeDefinition) {
  66             codec = EnumStringCodec.from((EnumTypeDefinition)normalizedType);
  67         } else if (normalizedType instanceof IntegerTypeDefinition) {
  68             codec = AbstractIntegerStringCodec.from((IntegerTypeDefinition) normalizedType);
  69         } else if (normalizedType instanceof StringTypeDefinition) {
  70             codec = StringStringCodec.from((StringTypeDefinition)normalizedType);
  71         } else if (normalizedType instanceof UnionTypeDefinition) {
  72             codec = UnionStringCodec.from((UnionTypeDefinition)normalizedType);
  73         } else if (normalizedType instanceof UnsignedIntegerTypeDefinition) {
  74             codec = AbstractIntegerStringCodec.from((UnsignedIntegerTypeDefinition) normalizedType);
  75         } else {
  76             codec = null;
  77         }
  78         return codec;
  79     }
  80 }