/*
* 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.Type;
/**
* @author wenshao<szujobs@hotmail.com>
*/
public class ObjectArraySerializer implements ObjectSerializer {
public static final ObjectArraySerializer instance = new ObjectArraySerializer();
public ObjectArraySerializer() {
}
public final void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType) throws IOException {
SerializeWriter out = serializer.getWriter();
Object[] array = (Object[]) object;
if (object == null) {
if (out.isEnabled(SerializerFeature.WriteNullListAsEmpty)) {
out.write("[]");
} else {
out.writeNull();
}
return;
}
int size = array.length;
int end = size - 1;
if (end == -1) {
out.append("[]");
return;
}
SerialContext context = serializer.getContext();
serializer.setContext(context, object, fieldName);
try {
Class<?> preClazz = null;
ObjectSerializer preWriter = null;
out.append('[');
if (out.isEnabled(SerializerFeature.PrettyFormat)) {
serializer.incrementIndent();
serializer.println();
for (int i = 0; i < size; ++i) {
if (i != 0) {
out.write(',');
serializer.println();
}
serializer.write(array[i]);
}
serializer.decrementIdent();
serializer.println();
out.write(']');
return;
}
for (int i = 0; i < end; ++i) {
Object item = array[i];
if (item == null) {
out.append("null,");
} else {
Class<?> clazz = item.getClass();
if (clazz == preClazz) {
preWriter.write(serializer, item, null, null);
} else {
preClazz = clazz;
preWriter = serializer.getObjectWriter(clazz);
preWriter.write(serializer, item, null, null);
}
out.append(',');
}
}
Object item = array[end];
if (item == null) {
out.append("null]");
} else {
serializer.write(item);
out.append(']');
}
} finally {
serializer.setContext(context);
}
}
}