/*
* Copyright 1999-2101 Alibaba Group.
*
* 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 com.jd.glowworm.serializer;
import java.io.IOException;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.jd.glowworm.PBException;
import com.jd.glowworm.util.FieldInfo;
import com.jd.glowworm.util.TypeUtils;
/**
* @author wenshao<szujobs@hotmail.com>
*/
public class JavaBeanSerializer implements ObjectSerializer {
// serializers
private final FieldSerializer[] sortedGetters;
public JavaBeanSerializer(Class<?> clazz){
this(clazz, (Map<String, String>) null);
}
public JavaBeanSerializer(Class<?> clazz, String... aliasList){
this(clazz, createAliasMap(aliasList));
}
static Map<String, String> createAliasMap(String... aliasList) {
Map<String, String> aliasMap = new HashMap<String, String>();
for (String alias : aliasList) {
aliasMap.put(alias, alias);
}
return aliasMap;
}
public JavaBeanSerializer(Class<?> clazz, Map<String, String> aliasMap) {
{
List<FieldSerializer> getterList = new ArrayList<FieldSerializer>();
List<FieldInfo> fieldInfoList = TypeUtils.computeGetters(clazz, aliasMap, true);
for (FieldInfo fieldInfo : fieldInfoList) {
getterList.add(createFieldSerializer(fieldInfo));
}
sortedGetters = getterList.toArray(new FieldSerializer[getterList.size()]);
}
}
public void write(PBSerializer serializer, Object object, Object fieldName, Type fieldType) throws IOException {
SerializeWriter out = serializer.getWriter();
/* if (object == null) {
out.writeNull();
return;
}
if (serializer.containsReference(object)) {
writeReference(serializer, object);
return;
}*/
final FieldSerializer[] getters = this.sortedGetters;
try {
if (fieldName == null)
{
out.getCodedOutputStream().writeRawByte(com.jd.glowworm.asm.Type.OBJECT);
out.writeString(object.getClass().getName());
}
/*out.getCodedOutputStream().writeRawByte(com.cn.jd.glowworm.asm.Type.OBJECT);
out.writeString(object.getClass().getName());*/
for (int i = 0; i < getters.length; ++i) {
FieldSerializer fieldSerializer = getters[i];
Field field = fieldSerializer.getField();
if (field != null) {
if (Modifier.isTransient(field.getModifiers())) {
continue;
}
}
Object propertyValue = fieldSerializer.getPropertyValue(object);
fieldSerializer.writeProperty(serializer, propertyValue, i);
}
} catch (Exception e) {
throw new PBException("write javaBean error", e);
}
}
public FieldSerializer createFieldSerializer(FieldInfo fieldInfo) {
Class<?> clazz = fieldInfo.getFieldClass();
if (clazz == Number.class) {
return new NumberFieldSerializer(fieldInfo);
}
return new ObjectFieldSerializer(fieldInfo);
}
}