| /* |
| R * 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.ode.jacob.soup.jackson; |
| |
| import java.util.Collection; |
| |
| import org.apache.ode.jacob.ChannelRef; |
| import org.apache.ode.jacob.MessageListener; |
| import org.apache.ode.jacob.oo.Channel; |
| import org.apache.ode.jacob.oo.ChannelProxy; |
| import org.apache.ode.jacob.soup.CommChannel; |
| import org.apache.ode.jacob.vpu.ChannelFactory; |
| |
| import com.fasterxml.jackson.annotation.JsonTypeInfo; |
| import com.fasterxml.jackson.annotation.JsonTypeInfo.Id; |
| import com.fasterxml.jackson.databind.DeserializationConfig; |
| import com.fasterxml.jackson.databind.JavaType; |
| import com.fasterxml.jackson.databind.SerializationConfig; |
| import com.fasterxml.jackson.databind.cfg.MapperConfig; |
| import com.fasterxml.jackson.databind.jsontype.NamedType; |
| import com.fasterxml.jackson.databind.jsontype.TypeDeserializer; |
| import com.fasterxml.jackson.databind.jsontype.TypeIdResolver; |
| import com.fasterxml.jackson.databind.jsontype.TypeSerializer; |
| import com.fasterxml.jackson.databind.jsontype.impl.ClassNameIdResolver; |
| import com.fasterxml.jackson.databind.jsontype.impl.StdTypeResolverBuilder; |
| import com.fasterxml.jackson.databind.jsontype.impl.TypeIdResolverBase; |
| import com.fasterxml.jackson.databind.type.TypeFactory; |
| |
| /** |
| * Customized StdTypeResolverBuilder that enables a custom type id resolving |
| * mechanism for Channels. |
| * |
| * @author Tammo van Lessen |
| * |
| */ |
| public class JacobTypeResolverBuilder extends StdTypeResolverBuilder { |
| |
| public JacobTypeResolverBuilder() { |
| init(JsonTypeInfo.Id.CLASS, null); |
| inclusion(JsonTypeInfo.As.PROPERTY); |
| typeProperty("@class"); |
| } |
| |
| |
| @Override |
| protected TypeIdResolver idResolver(MapperConfig<?> config, |
| JavaType baseType, Collection<NamedType> subtypes, boolean forSer, |
| boolean forDeser) { |
| return new ChannelAwareTypeIdResolver(baseType, config.getTypeFactory()); |
| } |
| |
| |
| @Override |
| public TypeSerializer buildTypeSerializer(SerializationConfig config, |
| JavaType baseType, Collection<NamedType> subtypes) { |
| |
| return useForType(baseType) ? super.buildTypeSerializer(config, baseType, subtypes) : null; |
| } |
| |
| |
| @Override |
| public TypeDeserializer buildTypeDeserializer(DeserializationConfig config, |
| JavaType baseType, Collection<NamedType> subtypes) { |
| |
| return (useForType(baseType)) ? super.buildTypeDeserializer(config, baseType, subtypes) : null; |
| } |
| |
| private boolean useForType(JavaType t) { |
| if (Runnable.class.isAssignableFrom(t.getRawClass())) { |
| return true; |
| } |
| |
| //TODO: check if still needed. |
| if (Channel.class.isAssignableFrom(t.getRawClass())) { |
| return true; |
| } |
| |
| if (CommChannel.class.isAssignableFrom(t.getRawClass())) { |
| return true; |
| } |
| |
| if (ChannelRef.class.isAssignableFrom(t.getRawClass())) { |
| return true; |
| } |
| |
| if (MessageListener.class.isAssignableFrom(t.getRawClass())) { |
| return true; |
| } |
| |
| if (t.getRawClass() == Object.class || t.isArrayType()) { |
| return true; |
| } |
| |
| return false; |
| } |
| |
| |
| public static class ChannelAwareTypeIdResolver extends TypeIdResolverBase { |
| |
| private ClassNameIdResolver delegate; |
| |
| protected ChannelAwareTypeIdResolver(JavaType baseType, |
| TypeFactory typeFactory) { |
| super(baseType, typeFactory); |
| delegate = new ClassNameIdResolver(baseType, typeFactory); |
| } |
| |
| public String idFromValue(Object value) { |
| if (value instanceof ChannelProxy) { |
| CommChannel commChannel = (CommChannel) ChannelFactory.getBackend((Channel)value); |
| return commChannel.getType().getName(); |
| |
| } |
| return delegate.idFromValue(value); |
| } |
| |
| public String idFromValueAndType(Object value, Class<?> suggestedType) { |
| return delegate.idFromValueAndType(value, suggestedType); |
| } |
| |
| public JavaType typeFromId(String id) { |
| return delegate.typeFromId(id); |
| } |
| |
| public Id getMechanism() { |
| return Id.CUSTOM; |
| } |
| |
| } |
| |
| } |