[jira] [Commented] (FALCON-470) Add support for pagination to list API

["Venkatesh Seetharam (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FALCON-470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14093443#comment-14093443 ] 

Venkatesh Seetharam commented on FALCON-470:
--------------------------------------------

A lot of issues with the code and it wont compile.

FalconCLI
* lot of repetitive code, can refactor into a method
{code}
        if (commandLine.getOptionValue(OFFSET_OPT) != null) {
            try {
                offset = Integer.parseInt(commandLine.getOptionValue(OFFSET_OPT));
            } catch (NumberFormatException e) {
                throw new FalconCLIException("Input value provided for queryParam \"offset\" is not a valid Integer");
            }
        }
{code}

* refactor this into a method
{code}
            if (fields == null) {
                fields = "";
            } else if (!fields.equalsIgnoreCase("status")) {
                throw new FalconCLIException("Invalid value for queryParam \"fields\" : "+fields);
            }
{code}

* CLI is getting too unweildy, we could may be add enums and construct options from 'em, may be another jira

FalconClient
* why have you removed SUSPEND CHECKSTYLE CHECK ParameterNumberCheck

* Formatting is incorrect in ResourceList.twiki. Did you verify the generated HTML?

* You have disabled a test: org/apache/falcon/resource/EntityManagerJerseyIT.testProcessInputUpdate

* ProcessInstanceManagerIT is disabled, how did you verify?

AbstractEntityManager

* why do you have ugi as an instance variable?
{code}protected UserGroupInformation currentUgi{code}

* getEntityList is quite long, bad practice, pls refactor into methods.
filterByField init is a easy candidate

* There are 2 duplicate methods for isEntityAuthorized

AbstractInstanceManager

* method getInstanceResultSubset is too long, refactor

* I see a log of repetitive code which can be factored into the base class. pls apply DRY principle

> Add support for pagination to list API
> --------------------------------------
>
>                 Key: FALCON-470
>                 URL: https://issues.apache.org/jira/browse/FALCON-470
>             Project: Falcon
>          Issue Type: Sub-task
>          Components: webapp
>    Affects Versions: 0.6
>            Reporter: Venkatesh Seetharam
>            Assignee: Balu Vellanki
>              Labels: rest_api
>             Fix For: 0.6
>
>         Attachments: Falcon-Jira-470-471-472-473-v1.patch
>
>




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