/**
* 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.activemq.apollo.dto;
import org.apache.activemq.apollo.util.DtoModule$;
import org.codehaus.jackson.annotate.JsonTypeInfo;
import org.codehaus.jackson.annotate.JsonTypeName;
import org.codehaus.jackson.map.jsontype.TypeIdResolver;
import org.codehaus.jackson.map.type.TypeFactory;
import org.codehaus.jackson.type.JavaType;
import javax.xml.bind.annotation.XmlRootElement;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
/**
*/
public class ApolloTypeIdResolver implements TypeIdResolver {
protected final HashMap<Class<?>, String> typeToId = new HashMap<Class<?>, String>();
protected final HashMap<String, JavaType> idToType = new HashMap<String, JavaType>();
private JavaType baseType;
public void init(JavaType baseType) {
this.baseType = baseType;
ArrayList<Class<?>> classes = new ArrayList<Class<?>>();
classes.add(baseType.getRawClass());
classes.addAll(Arrays.asList(DtoModule$.MODULE$.extension_classes()));
for ( Class<?> c : classes) {
if( baseType.getRawClass().isAssignableFrom(c) ) {
JsonTypeName jsonAnnoation = c.getAnnotation(JsonTypeName.class);
if(jsonAnnoation!=null && jsonAnnoation.value()!=null) {
typeToId.put(c, jsonAnnoation.value());
idToType.put(jsonAnnoation.value(), TypeFactory.specialize(baseType, c));
idToType.put(c.getName(), TypeFactory.specialize(baseType, c));
} else {
XmlRootElement xmlAnnoation = c.getAnnotation(XmlRootElement.class);
if(xmlAnnoation!=null && xmlAnnoation.name()!=null) {
typeToId.put(c, xmlAnnoation.name());
idToType.put(xmlAnnoation.name(), TypeFactory.specialize(baseType, c));
idToType.put(c.getName(), TypeFactory.specialize(baseType, c));
}
}
}
}
}
public JsonTypeInfo.Id getMechanism() {
return JsonTypeInfo.Id.CUSTOM;
}
public String idFromValue(Object value) {
return idFromValueAndType(value, value.getClass());
}
public String idFromValueAndType(Object value, Class<?> aClass) {
String rc = typeToId.get(aClass);
if(rc==null)
throw new IllegalArgumentException("Invalid sub type: "+aClass+", of base type: "+baseType.getRawClass());
return rc;
}
public JavaType typeFromId(String id) {
JavaType rc = idToType.get(id);
if(rc==null)
throw new IllegalArgumentException("Invalid type id '"+id);
return rc;
}
}