creating hyperlinks in vraptor3

[konata]

Hi, I'm trying out vraptor3 with Java, and the creating hypermedia
links feature is not working. I tried
public void configureRelations(RelationBuilder builder) {
builder.relation("self").uses(ItemController.class).showItem(id);
builder.relation("basket").at("/Basket/add/"+id);
}
as suggested in tutorial, and no links created in the xml output. I
also tried the section 'Hypermedia resources' in http://blog.caelumobjects.com/tag/vraptor/
and all I get from Eclipse is 'The method relation(String) is
undefined for the type Restfulie'.

What are the steps to getting hypermedia links to work/to show up in
xml output? ie. to get output like
<item>
<id>3</id>
<name>Soap</name>
<price>1.99</price>
<atom:link rel="self" href="http://localhost:8080/items/3"
xmlns:atom="http://www.w3.org/2005/Atom"/>
<atom:link rel="basket" href="http://localhost:8080/baskets"
xmlns:atom="http://www.w3.org/2005/Atom"/>
</item>

Thanks,
Konata

[Guilherme Silveira]

Hello Konata,

There is a configuration step on the web.xml file to set up the
serializer, its easy to miss that step (we should makeit the default
one). Did you configure the restfulei package on the web.xml file?

regards

Guilherme Silveira
Caelum | Ensino e Inovação
http://www.caelum.com.br/

[Lucas Cavalcanti]

Hi,

you have to add this to your web.xml :

         <context-param>

<param-name>br.com.caelum.vraptor.packages</param-name>

<param-value>br.com.caelum.vraptor.restfulie</param-value>

</context-param>

and use at the end of your logic method (on the Controller)

result.use(representation()).from(item).serialize();

static import from Results.*

[]'s

[konata]

Hi all,

thanks so much for your replies. I have configured the web.xml and
imported from Results. No luck.

This is what I have in my web.xml:

<context-param>
<param-name>br.com.caelum.vraptor.packages</param-name>
<param-value>br.com.caelum.vraptor.restfulie</param-value>
</context-param>

<filter>
<filter-name>vraptor</filter-name>
<filter-class>br.com.caelum.vraptor.VRaptor</filter-class>
</filter>
<filter-mapping>
<filter-name>vraptor</filter-name>
<url-pattern>/*</url-pattern>
<dispatcher>FORWARD</dispatcher>
<dispatcher>REQUEST</dispatcher>
</filter-mapping>

In my basket controller:
@Path("/Basket")
public void basket() {
result.use(xml()).from(basket).include("list").serialize();
}

And in my basket object:
public void configureRelations(RelationBuilder builder) {
builder.relation("self").uses(BasketController.class).basket();
builder.relation("item").at("/Item/1");
}

Is the way I organize my code incorrect? Any other places that
requires attention?

Thanks so much again!
Konata

[Lucas Cavalcanti]

does basket implement HypermediaResource?

[konata]

yes, basket implements HypermediaResource.

Konata

[Lucas Cavalcanti]

I've tried this and it worked:

https://gist.github.com/749124

also I'm using vraptor 3.2.0

[]'s

[konata]

Thanks for your code. I have tried it and the output I got is
<basket>
<id>2</id>
<name>duh</name>
</basket>

So how do you get the links like

<atom:link rel="self" href="http://localhost:8080/items/3"
xmlns:atom="http://www.w3.org/2005/Atom"/>

?

I'm using vraptor 3.2.0 as well.

Thanks,
Konata

[Lucas Cavalcanti]

try this:

-download the vraptor-blank-project http://code.google.com/p/vraptor3/downloads/detail?name=vraptor-blank-project-3.2.0.zip&can=2&q=

-add the classes and web.xml from my gist: https://gist.github.com/749124

-run it on a server

-access http://localhost:8080/vraptor-blank-project/items/123

my output:

<basket> <id>123</id> <name>duh</name> <atom:link rel="self" href="http://localhost:8080/vraptor-blank-project/items/123" xmlns:atom="http://www.w3.org/2005/Atom"/> <atom:link rel="basket" href="http://localhost:8080/vraptor-blank-project/Basket/add/123" xmlns:atom="http://www.w3.org/2005/Atom"/> </basket>

[]'s

[konata]

It works like a charm! Thanks so much!

Konata

On Dec 21, 9:20 am, Lucas Cavalcanti <lucasmrtu...@gmail.com> wrote:
> try this:
>
> -download the vraptor-blank-projecthttp://code.google.com/p/vraptor3/downloads/detail?name=vraptor-blank...

> -add the classes and web.xml from my gist:https://gist.github.com/749124
> -run it on a server

> -accesshttp://localhost:8080/vraptor-blank-project/items/123