package com.alibaba.fastjson.parser.deserializer;
import java.lang.reflect.Type;
import java.util.concurrent.atomic.AtomicLong;
import com.alibaba.fastjson.parser.DefaultJSONParser;
import com.alibaba.fastjson.parser.JSONLexer;
import com.alibaba.fastjson.parser.JSONToken;
import com.alibaba.fastjson.util.TypeUtils;
public class LongDeserializer implements ObjectDeserializer {
public final static LongDeserializer instance = new LongDeserializer();
@SuppressWarnings("unchecked")
public <T> T deserialze(DefaultJSONParser parser, Type clazz, Object fieldName) {
final JSONLexer lexer = parser.getLexer();
Long longObject;
if (lexer.token() == JSONToken.LITERAL_INT) {
long longValue = lexer.longValue();
lexer.nextToken(JSONToken.COMMA);
longObject = Long.valueOf(longValue);
} else {
Object value = parser.parse();
if (value == null) {
return null;
}
longObject = TypeUtils.castToLong(value);
}
if (clazz == AtomicLong.class) {
return (T) new AtomicLong(longObject.longValue());
}
return (T) longObject;
}
public int getFastMatchToken() {
return JSONToken.LITERAL_INT;
}
}