/*
* 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.alibaba.fastjson.serializer;
import java.io.IOException;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import com.alibaba.fastjson.annotation.JSONField;
import com.alibaba.fastjson.util.FieldInfo;
/**
* @author wenshao<szujobs@hotmail.com>
*/
public abstract class FieldSerializer {
protected final FieldInfo fieldInfo;
private final String double_quoted_fieldPrefix;
private final String single_quoted_fieldPrefix;
private final String un_quoted_fieldPrefix;
private boolean writeNull = false;
public FieldSerializer(FieldInfo fieldInfo){
super();
this.fieldInfo = fieldInfo;
fieldInfo.setAccessible(true);
this.double_quoted_fieldPrefix = '"' + fieldInfo.getName() + "\":";
this.single_quoted_fieldPrefix = '\'' + fieldInfo.getName() + "\':";
this.un_quoted_fieldPrefix = fieldInfo.getName() + ":";
JSONField annotation = fieldInfo.getAnnotation(JSONField.class);
if (annotation != null) {
for (SerializerFeature feature : annotation.serialzeFeatures()) {
if (feature == SerializerFeature.WriteMapNullValue) {
writeNull = true;
}
}
}
}
public boolean isWriteNull() {
return writeNull;
}
public Field getField() {
return fieldInfo.getField();
}
public String getName() {
return fieldInfo.getName();
}
public Method getMethod() {
return fieldInfo.getMethod();
}
public void writePrefix(JSONSerializer serializer) throws IOException {
SerializeWriter out = serializer.getWriter();
if (serializer.isEnabled(SerializerFeature.QuoteFieldNames)) {
if (serializer.isEnabled(SerializerFeature.UseSingleQuotes)) {
out.write(single_quoted_fieldPrefix);
} else {
out.write(double_quoted_fieldPrefix);
}
} else {
out.write(un_quoted_fieldPrefix);
}
}
public Object getPropertyValue(Object object) throws Exception {
return fieldInfo.get(object);
}
public abstract void writeProperty(JSONSerializer serializer, Object propertyValue) throws Exception;
public abstract void writeValue(JSONSerializer serializer, Object propertyValue) throws Exception;
}