MessagePack Java 0.6.X 动态类型
我们知道 Java 是一个静态类型的语言。通过输入 Value
MessagePack能够实现动态的特性。
Value
有方法来检查自己的类型(isIntegerType()
, isArrayType()
, 等...),同时也转换为自己的类型 (asStringValue()
, convert(Template))。
package com.insight.demo.msgpack;
import org.junit.Test;
import org.msgpack.MessagePack;
import org.msgpack.type.Value;
import org.msgpack.unpacker.Converter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.List;
import static org.msgpack.template.Templates.TString;
import static org.msgpack.template.Templates.tList;
/**
* MessagePack6Objects
*
* @author yhu
*/
public class MessagePack6DynamicTyping {
final Logger logger = LoggerFactory.getLogger(MessagePack6DynamicTyping.class);
/**
* Test MessagePack6Objects
*/
@Test
public void MessagePack6DynamicTyping() {
logger.debug("MessagePack6Objects for Objects");
// Create serialize objects.
List<String> src = new ArrayList<String>();
src.add("msgpack");
src.add("kumofs");
src.add("viver");
MessagePack msgpack = new MessagePack();
try {
// Serialize
byte[] raw = msgpack.write(src);
// Deserialize directly using a template
List<String> dst1 = msgpack.read(raw, tList(TString));
// Or, Deserialze to Value then convert type.
Value dynamic = msgpack.read(raw);
List<String> dst2 = new Converter(dynamic).read(tList(TString));
} catch (Exception ex) {
logger.error("MessagePack Serialization And Deserialization error", ex);
}
}
}
https://www.cwiki.us/display/Serialization/QuickStart+For+MessagePack+Java+0.6.X