Re: [Simple-support] Handling deserialization exceptions

[Niall G. <gal...@ya...>]

the order attribute must have required=false, take a look at the @Validate annotation, you can simply remove any orders that have a null id.

--- On Mon, 11/6/12, Митя Балахонский <dn...@gm...> wrote:


From: Митя Балахонский <dn...@gm...>
Subject: [Simple-support] Handling deserialization exceptions
To: sim...@li...
Received: Monday, 11 June, 2012, 11:28 AM


Hello, dear All

I'm very happy that such a thing as Simple Framework exists, it helps
me a lot :)
But now I have an issue:
I'm using XML for client-server data exchange, and server doesn't
always send me valid data.
For example:

<response>
   <order id="123">
       <name>Foo</name>
   </order>
   <order>
       <name>Bar</name>
   </order>
   <order id="456">
       <name>Alice</name>
   </order>
</response>

I have a simple class for it:

@Root(name="order")
class Order {
   @Attribute(name="id", required=true)
   int id;
   @Element(name="name", required=false)
   String name;
}

@Root(name="response")
class Response {
   @ElementList
   List<Order> orders;
}

And an @ElementList of Order in the Response class.

It works perfectly until server sends me some order without the "id"
attribute. In this case parsing fails and I have no way to receive
other orders that were correctly formed, because framework exception
fires and cancels all the parsing.
Is there a proper way to handle it with Simple Framework?
I'd like to have a list of orders, which were parsed correctly, and
ignore incorrect ones. With my example that would be a list, containing Foo and
Alice, maybe having some notifications that 1 order cannot be parsed
because of the exception.

Thanks in advance!

--
Best regards,
   Dmitry Balakhonsky

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