Review Request 43273: SQOOP-2823: Sqoop2: RESTiliency: Remove repetitive try-catch block for accessing POST and PUT request

[Jarek Cecho]

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https://reviews.apache.org/r/43273/
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Review request for Sqoop and Jarek Cecho.


Bugs: SQOOP-2823
    https://issues.apache.org/jira/browse/SQOOP-2823


Repository: sqoop-sqoop2


Description
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I've noticed that we have quite a few repetition of code like this one:

{code}
     RoleBean bean = new RoleBean();

    try {
      JSONObject json = JSONUtils.parse(ctx.getRequest().getReader());
      bean.restore(json);
    } catch (IOException e) {
      throw new SqoopException(ServerError.SERVER_0003, "Can't read request 
content", e);
    }
{code}

It's relatively a lot of code just because {{ctx.getRequest()}} can throw an 
exception. I would like to propose to create a method in our {{ctx}} wrapper to 
provide the {{getReader}} method without any exception, which will simplify the 
code to:

{code}
    bean.restore(JSONUtils.parse(ctx.getReader()));
{code}

We'll of course throw an exception on failure - but using our 
{{SqoopException}} mechanism.


Diffs
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server/src/main/java/org/apache/sqoop/handler/AuthorizationRequestHandler.java 
6cd77e9 
  server/src/main/java/org/apache/sqoop/handler/JobRequestHandler.java 9dfcb0b 
  server/src/main/java/org/apache/sqoop/handler/LinkRequestHandler.java 7d7f1de 
  server/src/main/java/org/apache/sqoop/server/RequestContext.java 2beac2b 

Diff: https://reviews.apache.org/r/43273/diff/


Testing
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Thanks,

Jarek Cecho