Protocol buffer convert to xml

[Pradeep Rathnayaka]

I spent whole day to convert a protocol buffers message into an XML file(should be done both direction xml-proto, proto-xml), unfortunately I couldn't do that as expected. I have used here JDOM2 as xml parser. please anyone help or suggest me to produce XML/Proto message using protocol buffers?

My protocol Message as below,

message RoutePoint {

    required double x = 1;

    required double y = 2;

    optional double z = 3;

    optional double orientation = 4;

}

message WayPoint {

    required uint32 route_id = 1;

    required RoutePoint point = 2;

}

message RouteWay {

    optional uint32 command_ref = 1;

    required uint32 grant_id = 2;

    optional WayPoint begin_point = 3;

    required WayPoint end_point = 4;    

}

I tried with JAXB to Marshalling and Unmarshalling but is also doesn't support to this. 

Appreciate if provide an example for my case.

[PraYes]

Hi Binh Dao Duy,

It works fine for me, 

Anyway, I used JDOM-2 for manipulating XML data, Below is my implemented code portion

/* Generating a XML file from Proto the message. */

public void proto2Xml(Message message) {

SAXBuilder builder = new SAXBuilder();

Document document;

XMLOutputter outputter;

try {

document = builder.build(new ByteArrayInputStream(XmlFormat.printToString(message).toString().getBytes()));

outputter = new XMLOutputter();

outputter.setFormat(Format.getPrettyFormat());

System.out.println("++++++++PROTO2XML++++++++++++++++++++");

outputter.output(document, System.out); // XML Console out.

System.out.println("++++++++++++++++++++++++++++++++++++++");

outputter.output(document, new FileWriter(xmlFilePath));

} catch (JDOMException e) {

System.out.println("JDOMException : " + e.getMessage());

} catch (IOException e) {

System.out.println("IOException : " + e.getMessage());

}

} // End of proto2Xml.

Thanks,

Pradeep

On Monday, March 25, 2013 7:00:17 PM UTC+8, Binh Dao Duy wrote:

I think you should try with this https://code.google.com/p/protobuf-java-format/

Vào 16:26:19 UTC+7 Thứ hai, ngày 25 tháng ba năm 2013, PraYes đã viết: