/**
* Copyright 2005-2013 Dozer Project
*
* 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.dozer.propertydescriptor;
import com.google.protobuf.Descriptors;
import com.google.protobuf.Message;
import org.dozer.BeanBuilder;
import org.dozer.builder.ProtoBeanBuilder;
import org.dozer.fieldmap.FieldMap;
import org.dozer.fieldmap.HintContainer;
import org.dozer.util.DeepHierarchyUtils;
import org.dozer.util.MappingUtils;
import org.dozer.util.ProtoUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @author Dmitry Spikhalskiy
*/
public class ProtoFieldPropertyDescriptor extends AbstractPropertyDescriptor {
private final Logger logger = LoggerFactory.getLogger(ProtoFieldPropertyDescriptor.class);
public ProtoFieldPropertyDescriptor(Class<?> clazz, String fieldName, boolean isIndexed, int index, HintContainer srcDeepIndexHintContainer, HintContainer destDeepIndexHintContainer) {
super(clazz, fieldName, isIndexed, index, srcDeepIndexHintContainer, destDeepIndexHintContainer);
}
private Class<?> _propertyType;
@Override
public Class<?> getPropertyType() {
if (this._propertyType == null) {
Class<?> result;
if (MappingUtils.isDeepMapping(fieldName)) {
try {
result = DeepHierarchyUtils.getDeepFieldType(clazz, fieldName, srcDeepIndexHintContainer);
} catch (Exception ignore) {
logger.info("Determine field type by srcDeepIndexHintContainer failed");
try {
result = DeepHierarchyUtils.getDeepFieldType(clazz, fieldName, destDeepIndexHintContainer);
} catch (Exception secondIgnore) {
logger.info("Determine field type by destDeepIndexHintContainer failed");
result = null;
}
}
} else {
result = ProtoUtils.getJavaClass(getFieldDescriptor());
}
this._propertyType = result;
}
return this._propertyType;
}
@Override
public Object getPropertyValue(Object bean) {
Object result;
if (MappingUtils.isDeepMapping(fieldName)) {
result = DeepHierarchyUtils.getDeepFieldValue(bean, fieldName, isIndexed, index, srcDeepIndexHintContainer);
} else {
result = getSimplePropertyValue(bean);
if (isIndexed) {
result = MappingUtils.getIndexedValue(result, index);
}
}
return result;
}
private Object getSimplePropertyValue(Object bean) {
//proto builder can't contains already created object and even if contain - it's fields can't be changed
if (bean instanceof BeanBuilder) return null;
if (!(bean instanceof Message)) {
MappingUtils.throwMappingException("Try to pass non proto object to ProtoFieldPropertyDescriptor");
}
Message message = (Message)bean;
Object value = ProtoUtils.getFieldValue(message, fieldName);
return ProtoUtils.unwrapEnums(value);
}
@Override
public void setPropertyValue(Object bean, Object value, FieldMap fieldMap) {
if (!(bean instanceof ProtoBeanBuilder)) MappingUtils.throwMappingException("should be a ProtoBeanBuilder instance");
ProtoBeanBuilder builder = (ProtoBeanBuilder)bean;
value = ProtoUtils.wrapEnums(value);
if (value != null) {
builder.internalProtoBuilder().setField(getFieldDescriptor(), value);
} else {
builder.internalProtoBuilder().clearField(getFieldDescriptor());
}
}
private Class<?> _genericType;
@Override
public Class<?> genericType() {
if (this._genericType == null) {
Class<?> result;
if (MappingUtils.isDeepMapping(fieldName)) {
try {
result = DeepHierarchyUtils.getDeepGenericType(clazz, fieldName, srcDeepIndexHintContainer);
} catch (Exception ignore) {
logger.info("Determine field generic type by srcDeepIndexHintContainer failed");
try {
result = DeepHierarchyUtils.getDeepGenericType(clazz, fieldName, destDeepIndexHintContainer);
} catch (Exception secondIgnore) {
logger.info("Determine field generic type by destDeepIndexHintContainer failed");
result = null;
}
}
} else {
result = ProtoUtils.getJavaGenericClassForCollection(getFieldDescriptor());
}
this._genericType = result;
}
return this._genericType;
}
private Descriptors.FieldDescriptor _fieldDescriptor;
private Descriptors.FieldDescriptor getFieldDescriptor() {
if (_fieldDescriptor == null) {
this._fieldDescriptor = ProtoUtils.getFieldDescriptor((Class<? extends Message>) clazz, fieldName);
if (this._fieldDescriptor == null && !MappingUtils.isDeepMapping(fieldName)) {
MappingUtils.throwMappingException("No field descriptor for field with name: " + fieldName);
}
}
return _fieldDescriptor;
}
}