Re: RestletGWTSimpleExample - Error while handling an HTTP client call
Putting both the client and server in the same GWT project isn't a
requirement in general, is it? That would be a pretty big limitation.
Also, the RestletGWTSimpleExample page (
http://wiki.restlet.org/docs_2.0/13-restlet/275-restlet/144-restlet/188-restlet.html)
mentions an Ant build file, but I didn't find one in the zip archive. Does
one exist?
--tim
On Tue, Nov 24, 2009 at 8:19 AM, Thierry Boileau
thierry.boil...@noelios.com wrote:
Hi Josef,
you seem to use two separate projects. Could you integrate your RESTful
service application inside the gwt project? This should be composed of
two parts: client and server (configured using the war/WEB=INF/web.xml
file).
best regards,
Thierry Boileau
i just saw, that internally an exception is thrown:
Internal Connector Error (1002) - The URL http://localhost:1234/messagesis
invalid or violates the same-origin security restriction
this seems to be the problem. it might not be specific to restlet,
anyways maybe you know a way to bypass the SOP restricition using restless
gwt?
--
regarding my environment: there is an apache cxf RESTful webservice
started by a simple java application which publishes a message service at
http://localhost:1234/messages. using firefox poster i can veryfy, that
GET http:localhost:1234/messages would give a list of messages in xml
format. now i am trying to build a gwt client which accesses the service. my
platform is ubuntu 9.10 where i develop under eclipse.
thanks for your help and regards, josef
Hello josef,
what is the status code of the response inside the onReceived event
manager?
is a restlet gwt client intended to be used with a restlet gwt server
implementation only?
Not at all. The server part could be a simple servlet based application.
could you describe your environment? and maybe send a reproductible test
case?
Best regards,
Thierry Boileau
hello thierry,
thanks, i just tested the current example code and ... it worked!! ;)
maybe it is because this time i didn't use the ant-script (it is
missing this time), but directly imported the eclipse project file.
well unfortunately i ran into troubles again.
on the server-side i am using the JAX-RS features of the apache cxf
framework to publish my RESTful services. say that my service runs at
http://localhost:1234/messages
i tried to run a simple get-request on that url using
ClientResource r = new ClientResource(http://localhost:1234/messages
);
r.setOnReceived(new Uniform() {
public void handle(Request request, Response
response) {
...
}
r.get(MediaType.APPLICATION_XML);
my service won't be invoked, the handler method neither, nor do i
receive any log output...
is a restlet gwt client intended to be used with a restlet gwt server
implementation only, so accessing my cxf services doesn't work by
definition?
or is the problem that i can't access my service because of running gwt
in hosted mode and trying to access a restful service on localhost outside
of the gwt hosted scope?
thanks for your hints.
josef
--
http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2423800
--
http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2431812
RE: Fallback routing
So, nobody provided a better solution, but here's mine, with source code straight out of the Prudence project! I call it a FallbackRouter, an extension of the standard Restlet router, and pretty much a drop-in replacement for it in most circumstances. Whenever you attach new targets to it, it makes sure to automatically bunch together identical routes via a Fallback restlet. The Fallback restlet goes through its targets in order, trying to find the first one that can handle the request. It thus falls back to the next target for that route. It also supports simple caching, so that the successful target can be remembered per reference, and wasteful re-attempts can be avoided in the (near) future. Detaching targets from the FallbackRouter is also done with sensitivity to un-bunching. This have proven very useful in Prudence, where we can allow serving dynamic HTML, static web files, and REST resources from the same base URI. Here is the source code from the current Prudence revision, though if you read this email later, always best to check for the freshest revision: http://prudence.tigris.org/source/browse/prudence/trunk/java/com.threecrickets.prudence/src/com/threecrickets/prudence/util/FallbackRouter.java?revision=145view=markup http://prudence.tigris.org/source/browse/prudence/trunk/java/com.threecrickets.prudence/src/com/threecrickets/prudence/util/Fallback.java?revision=145view=markup -Tal Here's my requirement: I have two restlets to attach to a router, both with the same URI template. What I want is that if the first restlet fails (specifically setting the response status to 404), then the next restlet would be tried. I'm calling this fallback routing. So far, the only thing that works well is my own custom restlet that tries these two (or more) restlets in series. But this solution is awkward and also circumvents the router. I've tried to create my own custom router with a custom routing mode, but the best this solution can offer is selection of a route. There's no simple way to fallback on the next route in line if the first one fails its handle(). I even thought to use Router's built in retry feature, but this would require runtime changing of the route list, which also seems awkward to me. Any better ideas? -Tal -- http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2431841
spring mvc like web binding for POJO
hi, I wondering is restlet (will) support POJO binding like what in spring MVC web binding which convert all parameter value to java object. This could be useful if client is sending many parameter and server can convert it to object without many boilerplate code. kiwi happy hacking ! -- http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2431861
Re: Upload to Directory 2.0m6
Thought I'd contribute this variation on the example from M.Abdel-Aziz
(thanks so much for the inspiration). It was written using 2.0m6. There
are 3 code fragments: 1. the routing, 2. a file upload ServerResource, 3.
code that inserts the uploaded file and its name (as specified in the URI)
into a blob in a mysql database table. There are a couple more notes at the
end.
// 1. file upload routing in a Restlet Application
Router router = new Router(getContext());
router.setDefaultMatchingMode(Template.MODE_STARTS_WITH);
router.setRoutingMode(Router.MODE_BEST_MATCH);
Router uploadRouter = new Router(getContext());
uploadRouter.attach(, FileUploadResource.class);
uploadRouter.attach(/name/{name}, FileUploadResource.class);
final ChallengeAuthenticator uploadGuard = new
ChallengeAuthenticator(this.getContext(), ChallengeScheme.HTTP_BASIC,
Restful Access -- Please supply your
credentials);
uploadGuard.setVerifier(myVerifier);
uploadGuard.setNext(uploadRouter);
router.attach(/fileuploads,uploadGuard);
/**
* 2. Resource that manages uploading files.
* Sample curl used to test this beast:
*
* curl -v -u name:password
http://127.0.0.1/myResource/fileuploads/name/test.jar -F
name=@/Users/ty/Desktop/test.xml -X POST
*
*/
public class FileUploadResource extends ServerResource {
private static Logger myLog =
Logger.getLogger(FileUploadResource.class);
private Request request;
private String fileName = ;
private CMInfo cmi = null;
@Override
protected void doInit() throws ResourceException {
getVariants().add(new Variant(MediaType.MULTIPART_ALL));
request = getRequest();
ClientInfo cli = request.getClientInfo();
ChallengeResponse cr = request.getChallengeResponse();
cmi = new CMInfo(cr.getIdentifier(), cli.getAddress(), null);
fileName = (String) getRequest().getAttributes().get(name);
if(request.getMethod() != org.restlet.data.Method.POST) {
setStatus(Status.CLIENT_ERROR_CONFLICT);
}
else {
setStatus(Status.SUCCESS_OK);
}
}
@Post
public void uploadIt(Representation file) {
try {
FileItemFactory factory = new DiskFileItemFactory();
RestletFileUpload fileUpload = new
RestletFileUpload(factory);
FileItemIterator iter =
fileUpload.getItemIterator(file);
if (iter.hasNext()) {
FileItemStream item = iter.next();
if (!item.isFormField()) {
myLog.info(ContentType:+item.getContentType());
myLog.info(file:+item.getName());
Attachment.uploadAttachment(cmi,
item.openStream(), fileName);
}
}
}
catch (Exception e) {
myLog.info(uploadIt exception:+e);
}
setStatus(Status.SUCCESS_CREATED); // assume works for now
}
}
// 3. a function to save an uploaded file to a mySql attachments table
public static int uploadAttachment(CMInfo cmi, InputStream inStream,
String
attachmentName) {
InputStream is = null;
int attachmentId = -1;
DataSource ds = MyUtils.getDataSource();
java.sql.Connection conn = null;
PreparedStatement ps = null;
String sqlString = null;
int fileLength = 0;
try {
fileLength = (int) inStream.available();
if(StringUtils.isNotBlank(attachmentName)) {
sqlString = INSERT INTO attachments (filename,
contents) VALUES(?, ?)
;
conn = ds.getConnection();
ps = StatementFactory.getStatement(conn,
sqlString, cmi);
ps.setString(1, attachmentName);
ps.setBinaryStream(2, inStream, fileLength);
ps.executeUpdate();
sqlString = SELECT LAST_INSERT_ID() as autoId
;
ps = StatementFactory.getStatement(conn,
sqlString, cmi);
ResultSet rs = ps.executeQuery();
if (rs.next()) {
