| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.directmemory.lightning.internal.marshaller; |
| |
| import java.io.IOException; |
| |
| import org.apache.directmemory.lightning.SerializationContext; |
| import org.apache.directmemory.lightning.Source; |
| import org.apache.directmemory.lightning.Target; |
| import org.apache.directmemory.lightning.base.AbstractMarshaller; |
| import org.apache.directmemory.lightning.metadata.PropertyDescriptor; |
| |
| public class EnumMarshaller |
| extends AbstractMarshaller |
| { |
| |
| @Override |
| public boolean acceptType( Class<?> type ) |
| { |
| return Enum.class.isAssignableFrom( type ); |
| } |
| |
| @Override |
| public void marshall( Object value, PropertyDescriptor propertyDescriptor, Target target, |
| SerializationContext serializationContext ) |
| throws IOException |
| { |
| |
| if ( !writePossibleNull( value, target ) ) |
| { |
| return; |
| } |
| |
| target.writeLong( serializationContext.getClassDefinitionContainer().getClassDefinitionByType( propertyDescriptor.getType() ).getId() ); |
| target.writeInt( ( (Enum<?>) value ).ordinal() ); |
| } |
| |
| @Override |
| @SuppressWarnings( "unchecked" ) |
| public <V> V unmarshall( PropertyDescriptor propertyDescriptor, Source source, |
| SerializationContext serializationContext ) |
| throws IOException |
| { |
| if ( isNull( source ) ) |
| { |
| return null; |
| } |
| |
| long typeId = source.readLong(); |
| Class<?> propertyType = serializationContext.getClassDefinitionContainer().getTypeById( typeId ); |
| |
| int ordinal = source.readInt(); |
| Enum<?>[] values = ( (Class<Enum<?>>) propertyType ).getEnumConstants(); |
| for ( Enum<?> value : values ) |
| { |
| if ( value.ordinal() == ordinal ) |
| { |
| return (V) value; |
| } |
| } |
| |
| return null; |
| } |
| } |