Fwd: Converting xml to avro and getting back the same xml from avro.

[shashi kumar]

---------- Forwarded message ----------
From: shashi kumar <kshashi...@gmail.com>
Date: Tue, May 23, 2017 at 11:20 AM
Subject: Fwd: Converting xml to avro and getting back the same xml from
avro.
To: user-i...@avro.apache.org, user-...@avro.apache.org



---------- Forwarded message ----------
From: shashi kumar <kshashi...@gmail.com>
Date: Mon, May 22, 2017 at 6:46 PM
Subject: Converting xml to avro and getting back the same xml from avro.



Hello All,

Github source code used.
https://github.com/elodina/xml-avro

By using the above source, i am able to generate the avro schema (.avsc
file )
and avro file by giving xsd and xml.

While i need to generate back the xml from the avro file generated.
It is giving the error as "Exception in thread "main"
java.lang.ExceptionInInitializerError
Caused by: org.apache.avro.SchemaParseException: No protocol name
specified: "

Then in the avro schema i gave the protocol has :

"namespace": "xs",

  "protocol": "HelloWorld",

  "doc": "Protocol Greetings",



Or


"namespace": "http://www.w3.org/2001/XMLSchema";,

  "protocol": "HelloWorld",

  "doc": "Protocol Greetings",


I tried giving this protocol and tried to generate the xml from the avro.

i got another error:

Exception in thread "main" java.util.NoSuchElementException


Is there any better solution for this ?.



Attachment:
student_2.xml and xml_2.xsd is used for generating the avro schema and avro
file.
After getting the avro file, i tried the avro schema generated and avro
file to generate back the xml.


Thanks,

Shashi

xml.avsc
Description: Binary data

xml_2.xsd
Description: Binary data

<?xml version = "1.0"?>

<class>  
   <student rollno = "393">
      <firstname>Dinkar</firstname>    
      <lastname>Kad</lastname>
      <nickname>Dinkar</nickname>
      <marks>85</marks>	 
   </student>
   
   <student rollno = "493">	 
      <firstname>Vaneet</firstname>
      <lastname>Gupta</lastname>
      <nickname>Vinni</nickname>
      <marks>95</marks>
   </student>
   
   <student rollno = "593">    
      <firstname>Jasvir</firstname>
      <lastname>Singh</lastname>
      <nickname>Jazz</nickname>
      <marks>90</marks>
   </student>
</class>

student_3.avro
Description: Binary data