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From "Evaristo Wychoski Benfatti (JIRA)" <>
Subject [jira] [Commented] (CXF-7547) Problem to generate Java from WADL file when method id defined
Date Wed, 08 Nov 2017 16:30:00 GMT


Evaristo Wychoski Benfatti commented on CXF-7547:

Yes, that is the point that the patch is trying to solve.

The Rule of thumbs that it proposes is:
* When id is provided, it is assumed that the user showed some preference and maintain such
preference, as default behavior to non equals name and id.
* But when id it is not provided, it is assumed that the user didn't show preference so any
descriptive name could be chosen.

What do you think?

> Problem to generate Java from WADL file when method id defined 
> ---------------------------------------------------------------
>                 Key: CXF-7547
>                 URL:
>             Project: CXF
>          Issue Type: Bug
>          Components: JAX-RS
>    Affects Versions: 3.1.14, 3.2.1
>         Environment: All Plataforms
>            Reporter: Evaristo Wychoski Benfatti
>            Priority: Minor
>              Labels: patch
> The following code base
> {code:java}
> @Path("/baz")
> public class Baz {
> 	@GET
> 	@Path("/foo/{id}")
> 	@Produces("text/plain")
> 	public String get(@PathParam int id);
> }
> {code}
> generates a similar wadl as follow as result of {{Java2Wadl}} process:
> {code:xml}
> <application xmlns="" xmlns:xs="">
>     <resources base="/baz" id="Baz">
>         <resource path="/foo/{id}" id="get">
>             <param name="id" style="template" type="xs:int"/>
>             <method name="GET" id="get">
>                 <response>
>                     <representation mediaType="text/plain">
>                         <param name="result" style="plain" type="xs:string"/>
>                     </representation>
>                 </response>
>             </method>
>         </resource>
>     </resources>
> </application>
> {code}
> When we run after the {{Wadl2Java}} process against previous wadl as input, the process
takes to the following java definition class as output:
> {code:java}
> @Path("/baz")
> public class Baz {
> 	@GET
> 	@Path("/foo/{id}")
> 	@Produces("text/plain")
> 	public String getId(@PathParam int id);
> }
> {code}
> According to {{tools/wadlto/jaxrs/src/main/java/org/apache/cxf/tools/wadlto/jaxrs/}}
a wadl method element generates the path as complement to the java method name when it does
not have an id atribute or when it is the even value of name atribute.
> When id is not defined this behavior is right, but when both of atributes are defined
in order to get the even class used to generate the wadl file as result of {{Wadl2Java}} process
this is not.
> The solution to enable creating the even code is check if the id is present or not at
wadl file as follow:
> {code:java}
> 	// Line 796 instead of this
>         if (methodNameLowerCase.equals(genMethodName)) {
> 	// this code
>         if (methodNameLowerCase.equals(genMethodName) && methodNameLowerCase
== id) {
> {code}
> The above code check if methodNameLowerCase is the even reference of id, only in this
case, the normal behavior is applied.

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