package com.alibaba.fastjson.serializer;
import java.lang.reflect.Type;
import java.util.Collection;
import java.util.List;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONException;
import com.alibaba.fastjson.parser.DefaultJSONParser;
import com.alibaba.fastjson.parser.JSONLexer;
import com.alibaba.fastjson.parser.JSONToken;
import com.alibaba.fastjson.parser.deserializer.ObjectDeserializer;
public class CharArrayCodec implements ObjectDeserializer {
@SuppressWarnings("unchecked")
public <T> T deserialze(DefaultJSONParser parser, Type clazz, Object fieldName) {
return (T) deserialze(parser);
}
@SuppressWarnings("unchecked")
public static <T> T deserialze(DefaultJSONParser parser) {
final JSONLexer lexer = parser.lexer;
if (lexer.token() == JSONToken.LITERAL_STRING) {
String val = lexer.stringVal();
lexer.nextToken(JSONToken.COMMA);
return (T) val.toCharArray();
}
if (lexer.token() == JSONToken.LITERAL_INT) {
Number val = lexer.integerValue();
lexer.nextToken(JSONToken.COMMA);
return (T) val.toString().toCharArray();
}
Object value = parser.parse();
if (value instanceof String) {
return (T) ((String) value).toCharArray();
}
if (value instanceof Collection) {
Collection<?> collection = (Collection) value;
boolean accept = true;
for (Object item : collection) {
if (item instanceof String) {
int itemLength = ((String) item).length();
if (itemLength != 1) {
accept = false;
break;
}
}
}
if (!accept) {
throw new JSONException("can not cast to char[]");
}
char[] chars = new char[collection.size()];
int pos = 0;
for (Object item : collection) {
chars[pos++] = ((String) item).charAt(0);
}
return (T) chars;
}
return value == null //
? null //
: (T) JSON.toJSONString(value).toCharArray();
}
public int getFastMatchToken() {
return JSONToken.LITERAL_STRING;
}
}