Serialization Extension

Summary

Extension to serializing java object into byte code stream for transporting on the network, and vise versa.

Extension Interface

  • org.apache.dubbo.common.serialize.Serialization
  • org.apache.dubbo.common.serialize.ObjectInput
  • org.apache.dubbo.common.serialize.ObjectOutput

Extension Configuration

<!-- protocol serialization style -->
<dubbo:protocol serialization="xxx" />
<!-- default configuration, will take effect if serialization is not configured in <dubbo:protocol> -->
<dubbo:provider serialization="xxx" />

Existing Extension

  • org.apache.dubbo.common.serialize.dubbo.DubboSerialization
  • org.apache.dubbo.common.serialize.hessian.Hessian2Serialization
  • org.apache.dubbo.common.serialize.java.JavaSerialization
  • org.apache.dubbo.common.serialize.java.CompactedJavaSerialization

Extension Guide

Directory layout:

src
 |-main
    |-java
        |-com
            |-xxx
                |-XxxSerialization.java (Serialization implementation)
                |-XxxObjectInput.java (ObjectInput implementation)
                |-XxxObjectOutput.java (ObjectOutput implementation)
    |-resources
        |-META-INF
            |-dubbo
                |-org.apache.dubbo.common.serialize.Serialization (plain text file with the content: xxx=com.xxx.XxxSerialization)

XxxSerialization.java:

package com.xxx;
 
import org.apache.dubbo.common.serialize.Serialization;
import org.apache.dubbo.common.serialize.ObjectInput;
import org.apache.dubbo.common.serialize.ObjectOutput;
 
 
public class XxxSerialization implements Serialization {
    public ObjectOutput serialize(Parameters parameters, OutputStream output) throws IOException {
        return new XxxObjectOutput(output);
    }
    public ObjectInput deserialize(Parameters parameters, InputStream input) throws IOException {
        return new XxxObjectInput(input);
    }
}

META-INF/dubbo/org.apache.dubbo.common.serialize.Serialization:

xxx=com.xxx.XxxSerialization

Last modified December 22, 2020: clean up website (6e41905afab)