[jira] [Created] (OLINGO-1374) Include "target" in error response caused by exceptions (ODataLibraryException, DeserializerException)

["Tobias Niehues (JIRA)" <ji...@apache.org>]

Tobias Niehues created OLINGO-1374:
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             Summary: Include "target" in error response caused by exceptions (ODataLibraryException, DeserializerException)
                 Key: OLINGO-1374
                 URL: https://issues.apache.org/jira/browse/OLINGO-1374
             Project: Olingo
          Issue Type: Improvement
          Components: odata4-server
    Affects Versions: (Java) V4 4.6.0
            Reporter: Tobias Niehues


Error responses should include error codes and target to enable user interfaces to tie validation errors to the related interface element.

For example: The xml and json implementations of ODataDeserializer throw DeserializerExceptions and include the offending property in the error message. However, this information does not get propagated to the error handler.

 

See: [https://github.com/apache/olingo-odata4/blob/master/lib/server-core/src/main/java/org/apache/olingo/server/core/ODataHandlerImpl.java#L81-L125] 

DeserializerException is converted to ODataServerError, but it is not setting the ODataServerError.target attribute. This results in error messages like:

```

{"error":\{"code":null,"message":"Property: Type must not be null."}}

```

As it is, I find it hard to customize error handling as it is now. There is no nice way to replace ODataExceptionHelper, for example. 

 



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