Hi,
i put in place the mecanism described previously, everything working
well until i realized that i can restart my WS only one time before
getting a IllegalStateException:
i just change some pieces of code to get this working :
- my resource ReloadResource (ConfigurationService) implementing
ContainerNotifier is not in the same class that the servletContainer.
- i had to put a boolean flag to add the reload resource only one
time (i got an exception else) :
public class CstlServletContainer extends ServletContainer {
public static boolean reload = false;
@Override
protected void configure(final ServletConfig sc, ResourceConfig rc,
WebApplication wa) {
super.configure(sc, rc, wa);
ConfigurationService configService = new ConfigurationService();
if (!reload) {
rc.getSingletons().add(configService);
}
reload = true;
rc.getProperties().put(ResourceConfig.PROPERTY_CONTAINER_NOTIFIER,
configService);
}
}
so the first time the restart works well when i do this (you can see
that i don't want to restart my reloadResource in order to send a xml
result when the operation is ended):
...................
for ( ContainerListener cl : cls) {
if (!cl.equals(this))
cl.onReload();
}
.....................
and the second time i call this method i get an illegalstateException
when i trying to get a parameter in this line :
.....................
@Context
protected UriInfo context;
......................
line 352: final MultivaluedMap parameters = context.getQueryParameters();
................
exception:
java.lang.IllegalStateException
com.sun.jersey.impl.ThreadLocalHttpContext.getUriInfo(ThreadLocalHttpContext.java:67)
com.sun.jersey.impl.application.WebApplicationImpl$2.invoke(WebApplicationImpl.java:184)
$Proxy7.getQueryParameters(Unknown Source)
org.constellation.ws.rs.WebService.getParameter(WebService.java:352)
Is someone know you know why i'm getting this exception?
Guilhem Legal
Paul Sandoz a écrit :
>
> On Oct 3, 2008, at 2:23 PM, Guilhem wrote:
>
>> hi,
>>
>> i follow the tutorial i 've found at
>> http://blogs.sun.com/sandoz/entry/javarebel_and_jersey_take_2
>> this works well, but I don't see how to use this with tomcat instead
>> of a lightWebContainer.
>>
>
> You can extend the ServletContainer to register a container notifier.
> You need to add an instance of ContainerNotifier to to the resource
> config properties (ResourceConfig.PROPERTY_CONTAINER_NOTIFIER).
>
> Override the configure methods to do something like this:
>
> protected void configure(final ServletConfig sc, ResourceConfig
> rc, WebApplication wa) {
> super.configure(sc, rc, wa);
>
> ContainerNotifier cn = ....
>
> rc.getProperties().put(esourceConfig.PROPERTY_CONTAINER_NOTIFIER, cn);
> }
>
>
>> more, the resource are reloaded only when the classes are changed.
>>
>> For my application I want to make a JSF interface with a button
>> "reload" which restart all the resources (i had prefer only selected
>> resource but it seems to be unpossible).
>>
>
> Yes, currently it is not possible reload a single resource. Do you
> want to log an issue?
>
> It sounds like you want to have a another resource that triggers a
> reload.
>
> You could have a singleton resource instance you add to the singletons
> of ResourceConfig at configuration time that has the instance of the
> ContainerNotifier, then when a POST method is sent to that resource it
> can perform a reload.
>
> protected void configure(final ServletConfig sc, ResourceConfig
> rc, WebApplication wa) {
> super.configure(sc, rc, wa);
>
> ReloadResource rr = new ReloadResource(cn);
> rc.getSingletons().add(rr);
>
> rc.getProperties().put(esourceConfig.PROPERTY_CONTAINER_NOTIFIER, rr);
> }
>
> ....
>
> @Path("reload")
> public class ReloadResource implements ContainerNotifier {
> List<ContainerListener> cls;
> ...
>
> @POST void reload() {
> for (ContainerListener cl : cls) cl.onReload();
> }
> }
>
>
> Alternatively you could create an injectable provider to inject the
> registered container notifier.
>
>
>> is there any tutorial which help me to do this?
>>
>
> Unfortunately not :-(
>
> Paul.
>
>
>> Guilhem Legal
>>
>>
>> Paul Sandoz a écrit :
>>>
>>> On Sep 24, 2008, at 4:42 PM, Guilhem wrote:
>>>
>>>> hi,
>>>>
>>>> I would know if its possible to dynamically restart a resource
>>>> without having to undeploy/deploy or restart the container?
>>>>
>>>
>>> It is currently only possible to reload all resources. What happens
>>> is a new web application is created, configured and initiated.
>>>
>>> See the JavaDoc of the class:
>>>
>>> com.sun.jersey.spi.container.ContainerNotifier
>>>
>>> to register a notifier that may reload the container.
>>>
>>> I have used this in conjunction with JavaRebel. When JavaRebel
>>> detects changes to class files i have a hook in that to dynamically
>>> reload things using a ContainerNotifier without having to
>>> undeploy/deploy the web application.
>>>
>>> Does that work for you?
>>>
>>> Paul.
>>>
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>>>
>>>
>>>
>>
>>
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>>
>
>
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>
>
>