MessagePack Java 0.6.X 動態類型

咱們知道 Java 是一個靜態類型的語言。經過輸入 Value MessagePack可以實現動態的特性。

Value 有方法來檢查本身的類型（isIntegerType(), isArrayType(), 等...)，同時也轉換爲本身的類型 (asStringValue(), convert(Template)）。

本代碼能夠在 https://github.com/cwiki-us-demo/messagepack-6-demo-java/blob/master/src/test/java/com/insight/demo/msgpack/MessagePack6DynamicTyping.java 中查看。

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