Hello Philippe,
the main problem is that the GWT *extension* for the server side (jse, jee,
gae edition), is able to serialize an objet sent to a GWT client, and
deserialize an object sent by a GWT client. It is not able to deserialize an
object sent to a GWT client... I remember that these formats are distinct.
That is to say, it can not be used to deserialize the entity you get from
the server, in your case...
Having said that, you may think why do the server sent automatically such
representation?
When wrapping a ClientProxy resource, the list of accepted media types is
computed according to the list of converters available in the classpath,
just because these converters will cope with the entity.
As a side note, the order of declaration of the converters in the classpath
is important, because the related preferences have the same weight, so the
first one will be chosen.
I hope the explanation is clear enough, feel free to ask for more details.
Now, as a workaround, you can change the order of the classpath, or remove
the GWT converter from your groovy client project, or update the computed
preferences:
ClientResource clientResource = new ClientResource("
http://localhost:8080/contacts/123";);
ContactResource cr = clientResource.wrap(ContactResource.class);
ClientProxy p = (ClientProxy) cr;
p.getClientResource().getClientInfo().setAcceptedMediaTypes(Arrays.asList(new
Preference<MediaType>(MediaType.APPLICATION_JAVA_OBJECT)));
I recognize this is a bit tricky. We have to think to simplify this.
Best regards,
Thierry Boileau
Hi All,
>
> I'm totally newbie, and this is what I want to do with restlet :
> - have a restlet server serving a GWT application
> - have a restlet client accessing this server
>
> Instead of making a long discussion, I enclosed an example (I don't know
> where I find the original source).
>
> When I request with curl, I have the folowing answers :
>
> Default : curl localhost:8080/contacts/123
> -->
> //OK[8,7,0,6,5,4,3,2,40,1,["fr.compagniedesalpes.contact.model.Contact/792528633","Scott","fr.compagniedesalpes.contact.model.Address/3727213108","Mountain
> View","USA","10 bd Google","20010","Tiger"],0,6]
>
> XML: curl -H "Accept: application/xml" localhost:8080/contacts/123
> -->
> <?xml version="1.0" encoding="UTF-8" ?>
> <fr.compagniedesalpes.contact.model.Contact>
> <firstName>Scott</firstName>
> <lastName>Tiger</lastName>
> <homeAddress>
> <line1>10 bd Google</line1>
> <zipCode>20010</zipCode>
> <city>Mountain View</city>
> <country>USA</country>
> </homeAddress>
> <age>40</age>
>
> JSON : curl -H "Accept: application/json" localhost:8080/contacts/123
> -->
> {"fr.compagniedesalpes.contact.model.Contact":{"firstName":"Scott","lastName":"Tiger","homeAddress":{"line1":"10
> bd Google","zipCode":20010,"city":"Mountain
> View","country":"USA"},"age":40}}
>
> GWT : curl -H "Accept: application/x-java-serialized-object+gwt"
> localhost:8080/contacts/123
> -->
> //OK[8,7,0,6,5,4,3,2,40,1,["fr.compagniedesalpes.contact.model.Contact/792528633","Scott","fr.compagniedesalpes.contact.model.Address/3727213108","Mountain
> View","USA","10 bd Google","20010","Tiger"],0,6]
>
> Everything seems fine, but when I request with a little groovy script, I've
> got an exception :
>
> Script :
> package fr.compagniedesalpes.contact
> import org.restlet.resource.ClientResource
> ClientResource clientResource = new ClientResource("
> http://localhost:8080/contacts/123";)
> ContactResource cr = clientResource.wrap(ContactResource.class)
> Contact contact = cr.retrieve()
> clientResource.release()
> println contact.age
> println contact.firstName
> println contact.homeAddress
>
> --> Exception :
> java.lang.NumberFormatException: Expected type 'int' but received a
> non-numerical value:
> //OK[8,7,0,6,5,4,3,2,40,1,["fr.compagniedesalpes.contact.model.Contact/792528633","Scott","fr.compagniedesalpes.contact.model.Address/3727213108","Mountain
> View","USA","10 bd Google","20010","Tiger"],0,6]
> at
> com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.getNumberFormatException(ServerSerializationStreamReader.java:825)
> at
> com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.readInt(ServerSerializationStreamReader.java:491)
> at
> com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamReader.readObject(AbstractSerializationStreamReader.java:104)
> at
> com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader$ValueReader$8.readValue(ServerSerializationStreamReader.java:137)
> at
> com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.deserializeValue(ServerSerializationStreamReader.java:384)
> at
> org.restlet.ext.gwt.ObjectRepresentation.getObject(ObjectRepresentation.java:116)
> at org.restlet.ext.gwt.GwtConverter.toObject(GwtConverter.java:141)
> at
> org.restlet.service.ConverterService.toObject(ConverterService.java:158)
> at
> org.restlet.resource.UniformResource.toObject(UniformResource.java:644)
> at
> org.restlet.resource.ClientResource$1.invoke(ClientResource.java:1658)
>
> It seems that the client did not understand the response ? Why ?
>
> The server libraries are :
> com.thoughtworks.xstream.jar
> gwt-servlet.jar
> javax.xml.stream.jar
> org.codehaus.jettison.jar
> org.restlet.ext.gwt.jar
> org.restlet.ext.servlet.jar
> org.restlet.ext.xml.jar
> org.restlet.ext.xstream.jar
> org.restlet.jar <-- j2se edition
> org.restlet.jar <-- gwt edition
>
> The client libraries are :
> org.restlet.ext.json.jar <-- gwt edition
> org.restlet.ext.xml.jar <-- gwt edition
> org.restlet.jar <-- j2se edition
> org.restlet.jar <-- gwt edition
>
> I really read a LOT of documentation, but I did not find the answer. What
> desperate my most is the fact that I saw it working.
>
> If someone can do something for me, I will appreciate.
>
> At least, all the librairies come from the 2.0.5 Restlet version, and I use
> gwt 2.0.1.
>
> Thanks.
>
> ------------------------------------------------------
>
> http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2713482
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