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Adapter alibaba fastjson to other json libraries. the fastjson version: 1.2.58
/*
* Copyright 2019 the original author or authors.
*
* Licensed under the Apache, 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.gnu.org/licenses/lgpl-3.0.html
*
* 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 com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import java.io.IOException;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.*;
/**
* @author wenshao[[email protected]]
*/
public class MapSerializer extends SerializeFilterable implements ObjectSerializer {
private static final int NON_STRINGKEY_AS_STRING = SerializerFeature.of(
new SerializerFeature[]{
SerializerFeature.BrowserCompatible,
SerializerFeature.WriteNonStringKeyAsString,
SerializerFeature.BrowserSecure});
public static MapSerializer instance = new MapSerializer();
public void write(JSONSerializer serializer
, Object object
, Object fieldName
, Type fieldType
, int features) throws IOException {
write(serializer, object, fieldName, fieldType, features, false);
}
@SuppressWarnings({"rawtypes"})
public void write(JSONSerializer serializer
, Object object
, Object fieldName
, Type fieldType
, int features //
, boolean unwrapped) throws IOException {
SerializeWriter out = serializer.out;
if (object == null) {
out.writeNull();
return;
}
Map map = (Map) object;
final int mapSortFieldMask = SerializerFeature.MapSortField.mask;
if ((out.features & mapSortFieldMask) != 0 || (features & mapSortFieldMask) != 0) {
if (map instanceof JSONObject) {
map = ((JSONObject) map).getInnerMap();
}
if ((!(map instanceof SortedMap)) && !(map instanceof LinkedHashMap)) {
try {
map = new TreeMap(map);
} catch (Exception ex) {
// skip
}
}
}
if (serializer.containsReference(object)) {
serializer.writeReference(object);
return;
}
SerialContext parent = serializer.context;
serializer.setContext(parent, object, fieldName, 0);
try {
if (!unwrapped) {
out.write('{');
}
serializer.incrementIndent();
Class preClazz = null;
ObjectSerializer preWriter = null;
boolean first = true;
if (out.isEnabled(SerializerFeature.WriteClassName)) {
String typeKey = serializer.config.typeKey;
Class mapClass = map.getClass();
boolean containsKey = (mapClass == JSONObject.class || mapClass == HashMap.class || mapClass == LinkedHashMap.class)
&& map.containsKey(typeKey);
if (!containsKey) {
out.writeFieldName(typeKey);
out.writeString(object.getClass().getName());
first = false;
}
}
for (Map.Entry entry : map.entrySet()) {
Object value = entry.getValue();
Object entryKey = entry.getKey();
{
List preFilters = serializer.propertyPreFilters;
if (preFilters != null && preFilters.size() > 0) {
if (entryKey == null || entryKey instanceof String) {
if (!this.applyName(serializer, object, (String) entryKey)) {
continue;
}
} else if (entryKey.getClass().isPrimitive() || entryKey instanceof Number) {
String strKey = JSON.toJSONString(entryKey);
if (!this.applyName(serializer, object, strKey)) {
continue;
}
}
}
}
{
List preFilters = this.propertyPreFilters;
if (preFilters != null && preFilters.size() > 0) {
if (entryKey == null || entryKey instanceof String) {
if (!this.applyName(serializer, object, (String) entryKey)) {
continue;
}
} else if (entryKey.getClass().isPrimitive() || entryKey instanceof Number) {
String strKey = JSON.toJSONString(entryKey);
if (!this.applyName(serializer, object, strKey)) {
continue;
}
}
}
}
{
List propertyFilters = serializer.propertyFilters;
if (propertyFilters != null && propertyFilters.size() > 0) {
if (entryKey == null || entryKey instanceof String) {
if (!this.apply(serializer, object, (String) entryKey, value)) {
continue;
}
} else if (entryKey.getClass().isPrimitive() || entryKey instanceof Number) {
String strKey = JSON.toJSONString(entryKey);
if (!this.apply(serializer, object, strKey, value)) {
continue;
}
}
}
}
{
List propertyFilters = this.propertyFilters;
if (propertyFilters != null && propertyFilters.size() > 0) {
if (entryKey == null || entryKey instanceof String) {
if (!this.apply(serializer, object, (String) entryKey, value)) {
continue;
}
} else if (entryKey.getClass().isPrimitive() || entryKey instanceof Number) {
String strKey = JSON.toJSONString(entryKey);
if (!this.apply(serializer, object, strKey, value)) {
continue;
}
}
}
}
{
List nameFilters = serializer.nameFilters;
if (nameFilters != null && nameFilters.size() > 0) {
if (entryKey == null || entryKey instanceof String) {
entryKey = this.processKey(serializer, object, (String) entryKey, value);
} else if (entryKey.getClass().isPrimitive() || entryKey instanceof Number) {
String strKey = JSON.toJSONString(entryKey);
entryKey = this.processKey(serializer, object, strKey, value);
}
}
}
{
List nameFilters = this.nameFilters;
if (nameFilters != null && nameFilters.size() > 0) {
if (entryKey == null || entryKey instanceof String) {
entryKey = this.processKey(serializer, object, (String) entryKey, value);
} else if (entryKey.getClass().isPrimitive() || entryKey instanceof Number) {
String strKey = JSON.toJSONString(entryKey);
entryKey = this.processKey(serializer, object, strKey, value);
}
}
}
{
if (entryKey == null || entryKey instanceof String) {
value = this.processValue(serializer, null, object, (String) entryKey, value);
} else {
boolean objectOrArray = entryKey instanceof Map || entryKey instanceof Collection;
if (!objectOrArray) {
String strKey = JSON.toJSONString(entryKey);
value = this.processValue(serializer, null, object, strKey, value);
}
}
}
if (value == null) {
if (!out.isEnabled(SerializerFeature.WriteMapNullValue)) {
continue;
}
}
if (entryKey instanceof String) {
String key = (String) entryKey;
if (!first) {
out.write(',');
}
if (out.isEnabled(SerializerFeature.PrettyFormat)) {
serializer.println();
}
out.writeFieldName(key, true);
} else {
if (!first) {
out.write(',');
}
if (out.isEnabled(NON_STRINGKEY_AS_STRING) && !(entryKey instanceof Enum)) {
String strEntryKey = JSON.toJSONString(entryKey);
serializer.write(strEntryKey);
} else {
serializer.write(entryKey);
}
out.write(':');
}
first = false;
if (value == null) {
out.writeNull();
continue;
}
Class clazz = value.getClass();
if (clazz != preClazz) {
preClazz = clazz;
preWriter = serializer.getObjectWriter(clazz);
}
if (SerializerFeature.isEnabled(features, SerializerFeature.WriteClassName)
&& preWriter instanceof JavaBeanSerializer) {
Type valueType = null;
if (fieldType instanceof ParameterizedType) {
ParameterizedType parameterizedType = (ParameterizedType) fieldType;
Type[] actualTypeArguments = parameterizedType.getActualTypeArguments();
if (actualTypeArguments.length == 2) {
valueType = actualTypeArguments[1];
}
}
JavaBeanSerializer javaBeanSerializer = (JavaBeanSerializer) preWriter;
javaBeanSerializer.writeNoneASM(serializer, value, entryKey, valueType, features);
} else {
preWriter.write(serializer, value, entryKey, null, features);
}
}
} finally {
serializer.context = parent;
}
serializer.decrementIdent();
if (out.isEnabled(SerializerFeature.PrettyFormat) && map.size() > 0) {
serializer.println();
}
if (!unwrapped) {
out.write('}');
}
}
}
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