/**
* Copyright (C) 2010 Olafur Gauti Gudmundsson
*
* Licensed 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.mongodb.morphia.ext;
import org.junit.Test;
import org.mongodb.morphia.Key;
import org.mongodb.morphia.TestBase;
import org.mongodb.morphia.annotations.Entity;
import org.mongodb.morphia.annotations.Id;
import org.mongodb.morphia.mapping.MappedClass;
import org.mongodb.morphia.mapping.MappedField;
import org.mongodb.morphia.mapping.Mapper;
import java.lang.annotation.Annotation;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
/**
* @author Scott Hernandez
*/
public class ExternalMapperExtTest extends TestBase {
/**
* The skeleton to apply from.
*
* @author skot
*/
@Entity("special")
private static class Skeleton {
@Id
private String id;
}
private static class EntityWithNoAnnotations {
private String id;
}
private static class CloneMapper {
private final Mapper mapper;
public CloneMapper(final Mapper mapper) {
this.mapper = mapper;
}
void map(final Class sourceClass, final Class destClass) {
final MappedClass destMC = mapper.getMappedClass(destClass);
final MappedClass sourceMC = mapper.getMappedClass(sourceClass);
//copy the class level annotations
for (final Entry<Class<? extends Annotation>, List<Annotation>> e : sourceMC.getRelevantAnnotations().entrySet()) {
if (e.getValue() != null && !e.getValue().isEmpty()) {
for (final Annotation ann : e.getValue()) {
destMC.addAnnotation(e.getKey(), ann);
}
}
}
//copy the fields.
for (final MappedField mf : sourceMC.getPersistenceFields()) {
final Map<Class<? extends Annotation>, Annotation> annMap = mf.getAnnotations();
final MappedField destMF = destMC.getMappedFieldByJavaField(mf.getJavaFieldName());
if (destMF != null && annMap != null && !annMap.isEmpty()) {
for (final Entry<Class<? extends Annotation>, Annotation> e : annMap.entrySet()) {
destMF.addAnnotation(e.getKey(), e.getValue());
}
}
}
}
}
@Test
public void testExternalMapping() throws Exception {
final Mapper mapper = getMorphia().getMapper();
final CloneMapper helper = new CloneMapper(mapper);
helper.map(Skeleton.class, EntityWithNoAnnotations.class);
final MappedClass mc = mapper.getMappedClass(EntityWithNoAnnotations.class);
mc.update();
assertNotNull(mc.getIdField());
assertNotNull(mc.getEntityAnnotation());
assertEquals("special", mc.getEntityAnnotation().value());
EntityWithNoAnnotations ent = new EntityWithNoAnnotations();
ent.id = "test";
final Key<EntityWithNoAnnotations> k = getDs().save(ent);
assertNotNull(k);
ent = getDs().get(EntityWithNoAnnotations.class, "test");
assertNotNull(ent);
assertEquals("test", ent.id);
}
}