Null Context in ServerResource through SpringBeanFinder

6 messages

Null Context in ServerResource through SpringBeanFinder

Reply Threaded

Hello!

I'm using Java 1.6, Tomcat 6, RESTlet 2.0M5, Spring 2.5, the supported
version of FreeMarker, all on Linux.

The relevant part of my spring configuration looks like this:

<bean id="freeMarkerConfig"
class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
...
</bean>

<bean id="application" name="application" class="org.restlet.Application">
<property name="root" ref="router" />
...
</bean>

<bean name="router" class="org.restlet.ext.spring.SpringBeanRouter" />

<bean abstract="true" name="baseResource" scope="prototype"
class="ca.nrc.cadc.dp.web.restlet.resources.AbstractResource">

<property name="freeMarkerConfigViaConfigurer"
ref="freeMarkerConfigurer" />
</bean>

Which is very straightforward and worked fine with the 1.1.x versions of
RESTlet. Here are the relevant parts of my web.xml also:

<context-param>
<param-name>org.restlet.application</param-name>
<param-value>application</param-value>
</context-param>

<servlet>
<servlet-name>RestletServer</servlet-name>

<servlet-class>org.restlet.ext.spring.SpringServerServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>RestletServer</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>

My problem is that in my baseResource bean, I create a new
ContextTemplateLoader for FreeMarker to use, and I pass it getContext()
like so:

/**
* Set the FreeMarker Configuration.
*
* @param freeMarkerConfig The FreeMarker Configuration instance.
*/
public void setFreeMarkerConfig(final Configuration freeMarkerConfig)
{
if (freeMarkerConfig == null)
{
throw new FreeMarkerConfigurationException(
"FreeMarker Configuration cannot be NULL");
}

this.freeMarkerConfig = freeMarkerConfig;

freeMarkerConfig.setTemplateLoader(
new ContextTemplateLoader(getContext(),
"war:///freemarker-templates/"));
}

public void setFreeMarkerConfigViaConfigurer(
final FreeMarkerConfigurer springFreeMarkerConfigurer)
{
setFreeMarkerConfig(springFreeMarkerConfigurer.getConfiguration());
}

but getContext() returns null because the ServerResource's context
member is null. Is there a step I need to set the Context? The
SpringBeanFinder from the Router is passing in a null Context when the
init(Context, Request, Response) method is called on the
ServerResource. Has anyone else experienced this? I have not tried the
SVN trunk of RESTlet yet.

Many thanks!
Dustin
--

Dustin N. Jenkins | Tel/Tél: 250.363.3101 | [hidden email]

facsimile/télécopieur: (250) 363-0045

National Research Council Canada | 5071 West Saanich Rd, Victoria BC.
V9E 2E7

Conseil national de recherches Canada | 5071, ch. West Saanich, Victoria
(C.-B) V9E 2E7

Government of Canada | Gouvernement du Canada

------------------------------------------------------
http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2411701

Dustin N. Jenkins

Re: Null Context in ServerResource through SpringBeanFinder

Reply Threaded

I should mention too that I have my component defined:


<bean name="component" class="org.restlet.ext.spring.SpringComponent">
<property name="defaultTarget" ref="application" />
<property name="context" ref="component.context" />
<property name="clientsList">
<list>
<value>http</value>
<value>file</value>
</list>
</property>
</bean>

<bean name="component.context"

class="org.springframework.beans.factory.config.PropertyPathFactoryBean" />

And also in my web.xml:

<context-param>
<param-name>org.restlet.component</param-name>
<param-value>component</param-value>
</context-param>

Thanks!
Dustin

Dustin N. Jenkins wrote:

> Hello!
>
> I'm using Java 1.6, Tomcat 6, RESTlet 2.0M5, Spring 2.5, the supported
> version of FreeMarker, all on Linux.
>
> The relevant part of my spring configuration looks like this:
>
> <bean id="freeMarkerConfig"
> class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
> ...
> </bean>
>
> <bean id="application" name="application" class="org.restlet.Application">
> <property name="root" ref="router" />
> ...
> </bean>
>
> <bean name="router" class="org.restlet.ext.spring.SpringBeanRouter" />
>
> <bean abstract="true" name="baseResource" scope="prototype"
> class="ca.nrc.cadc.dp.web.restlet.resources.AbstractResource">
> 
> <property name="freeMarkerConfigViaConfigurer"
> ref="freeMarkerConfigurer" />
> </bean>
>
> Which is very straightforward and worked fine with the 1.1.x versions of
> RESTlet. Here are the relevant parts of my web.xml also:
>
> <context-param>
> <param-name>org.restlet.application</param-name>
> <param-value>application</param-value>
> </context-param>
>
> <servlet>
> <servlet-name>RestletServer</servlet-name>
>
> <servlet-class>org.restlet.ext.spring.SpringServerServlet</servlet-class>
> <load-on-startup>1</load-on-startup>
> </servlet>
>
> <servlet-mapping>
> <servlet-name>RestletServer</servlet-name>
> <url-pattern>/*</url-pattern>
> </servlet-mapping>
>
> My problem is that in my baseResource bean, I create a new
> ContextTemplateLoader for FreeMarker to use, and I pass it getContext()
> like so:
>
> /**
> * Set the FreeMarker Configuration.
> *
> * @param freeMarkerConfig The FreeMarker Configuration instance.
> */
> public void setFreeMarkerConfig(final Configuration freeMarkerConfig)
> {
> if (freeMarkerConfig == null)
> {
> throw new FreeMarkerConfigurationException(
> "FreeMarker Configuration cannot be NULL");
> }
>
> this.freeMarkerConfig = freeMarkerConfig;
>
> freeMarkerConfig.setTemplateLoader(
> new ContextTemplateLoader(getContext(),
> "war:///freemarker-templates/"));
> }
>
> public void setFreeMarkerConfigViaConfigurer(
> final FreeMarkerConfigurer springFreeMarkerConfigurer)
> {
> setFreeMarkerConfig(springFreeMarkerConfigurer.getConfiguration());
> }
>
> but getContext() returns null because the ServerResource's context
> member is null. Is there a step I need to set the Context? The
> SpringBeanFinder from the Router is passing in a null Context when the
> init(Context, Request, Response) method is called on the
> ServerResource. Has anyone else experienced this? I have not tried the
> SVN trunk of RESTlet yet.
>
> Many thanks!
> Dustin
>

--

Dustin N. Jenkins | Tel/Tél: 250.363.3101 | [hidden email]

facsimile/télécopieur: (250) 363-0045

National Research Council Canada | 5071 West Saanich Rd, Victoria BC.
V9E 2E7

Conseil national de recherches Canada | 5071, ch. West Saanich, Victoria
(C.-B) V9E 2E7

Government of Canada | Gouvernement du Canada

------------------------------------------------------
http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2411720

jlouvel

Re: Null Context in ServerResource through SpringBeanFinder

Reply Threaded

Hi Dustin,

Thanks for all the details. Would it be possible for you to send a mini
project (Eclipse or other) that would reproduce the issue? That would
really help us resolving any issue quickly.

Best regards,
Jerome Louvel
--
Restlet ~ Founder and Lead developer ~ http://www.restlet.org
Noelios Technologies ~ Co-founder ~ http://www.noelios.com

Dustin N. Jenkins a écrit :

> I should mention too that I have my component defined:
>
> 
> <bean name="component" class="org.restlet.ext.spring.SpringComponent">
> <property name="defaultTarget" ref="application" />
> <property name="context" ref="component.context" />
> <property name="clientsList">
> <list>
> <value>http</value>
> <value>file</value>
> </list>
> </property>
> </bean>
>
> <bean name="component.context"
>
> class="org.springframework.beans.factory.config.PropertyPathFactoryBean" />
>
> And also in my web.xml:
>
> <context-param>
> <param-name>org.restlet.component</param-name>
> <param-value>component</param-value>
> </context-param>
>
> Thanks!
> Dustin
>
>
> Dustin N. Jenkins wrote:
>
>> Hello!
>>
>> I'm using Java 1.6, Tomcat 6, RESTlet 2.0M5, Spring 2.5, the supported
>> version of FreeMarker, all on Linux.
>>
>> The relevant part of my spring configuration looks like this:
>>
>> <bean id="freeMarkerConfig"
>> class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
>> ...
>> </bean>
>>
>> <bean id="application" name="application" class="org.restlet.Application">
>> <property name="root" ref="router" />
>> ...
>> </bean>
>>
>> <bean name="router" class="org.restlet.ext.spring.SpringBeanRouter" />
>>
>> <bean abstract="true" name="baseResource" scope="prototype"
>> class="ca.nrc.cadc.dp.web.restlet.resources.AbstractResource">
>> 
>> <property name="freeMarkerConfigViaConfigurer"
>> ref="freeMarkerConfigurer" />
>> </bean>
>>
>> Which is very straightforward and worked fine with the 1.1.x versions of
>> RESTlet. Here are the relevant parts of my web.xml also:
>>
>> <context-param>
>> <param-name>org.restlet.application</param-name>
>> <param-value>application</param-value>
>> </context-param>
>>
>> <servlet>
>> <servlet-name>RestletServer</servlet-name>
>>
>> <servlet-class>org.restlet.ext.spring.SpringServerServlet</servlet-class>
>> <load-on-startup>1</load-on-startup>
>> </servlet>
>>
>> <servlet-mapping>
>> <servlet-name>RestletServer</servlet-name>
>> <url-pattern>/*</url-pattern>
>> </servlet-mapping>
>>
>> My problem is that in my baseResource bean, I create a new
>> ContextTemplateLoader for FreeMarker to use, and I pass it getContext()
>> like so:
>>
>> /**
>> * Set the FreeMarker Configuration.
>> *
>> * @param freeMarkerConfig The FreeMarker Configuration instance.
>> */
>> public void setFreeMarkerConfig(final Configuration freeMarkerConfig)
>> {
>> if (freeMarkerConfig == null)
>> {
>> throw new FreeMarkerConfigurationException(
>> "FreeMarker Configuration cannot be NULL");
>> }
>>
>> this.freeMarkerConfig = freeMarkerConfig;
>>
>> freeMarkerConfig.setTemplateLoader(
>> new ContextTemplateLoader(getContext(),
>> "war:///freemarker-templates/"));
>> }
>>
>> public void setFreeMarkerConfigViaConfigurer(
>> final FreeMarkerConfigurer springFreeMarkerConfigurer)
>> {
>> setFreeMarkerConfig(springFreeMarkerConfigurer.getConfiguration());
>> }
>>
>> but getContext() returns null because the ServerResource's context
>> member is null. Is there a step I need to set the Context? The
>> SpringBeanFinder from the Router is passing in a null Context when the
>> init(Context, Request, Response) method is called on the
>> ServerResource. Has anyone else experienced this? I have not tried the
>> SVN trunk of RESTlet yet.
>>
>> Many thanks!
>> Dustin
>>
>>
>
>

------------------------------------------------------
http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2411727

Dustin N. Jenkins

Re: Null Context in ServerResource through SpringBeanFinder

Reply Threaded

Hi Jerome,

I sent a tar file containing the source and WAR file, but the attachment
was 4.4M in the end. It sent fine, but I haven't seen it pop up on
here. Is there a better way to get it to you? Or will it come through
eventually?

Thanks,
Dustin

Jerome Louvel wrote:

> Hi Dustin,
>
> Thanks for all the details. Would it be possible for you to send a mini
> project (Eclipse or other) that would reproduce the issue? That would
> really help us resolving any issue quickly.
>
> Best regards,
> Jerome Louvel
> --
> Restlet ~ Founder and Lead developer ~ http://www.restlet.org
> Noelios Technologies ~ Co-founder ~ http://www.noelios.com
>
>
>
> Dustin N. Jenkins a écrit :
>
>> I should mention too that I have my component defined:
>>
>> 
>> <bean name="component" class="org.restlet.ext.spring.SpringComponent">
>> <property name="defaultTarget" ref="application" />
>> <property name="context" ref="component.context" />
>> <property name="clientsList">
>> <list>
>> <value>http</value>
>> <value>file</value>
>> </list>
>> </property>
>> </bean>
>>
>> <bean name="component.context"
>>
>> class="org.springframework.beans.factory.config.PropertyPathFactoryBean" />
>>
>> And also in my web.xml:
>>
>> <context-param>
>> <param-name>org.restlet.component</param-name>
>> <param-value>component</param-value>
>> </context-param>
>>
>> Thanks!
>> Dustin
>>
>>
>> Dustin N. Jenkins wrote:
>>
>>
>>> Hello!
>>>
>>> I'm using Java 1.6, Tomcat 6, RESTlet 2.0M5, Spring 2.5, the supported
>>> version of FreeMarker, all on Linux.
>>>
>>> The relevant part of my spring configuration looks like this:
>>>
>>> <bean id="freeMarkerConfig"
>>> class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
>>> ...
>>> </bean>
>>>
>>> <bean id="application" name="application" class="org.restlet.Application">
>>> <property name="root" ref="router" />
>>> ...
>>> </bean>
>>>
>>> <bean name="router" class="org.restlet.ext.spring.SpringBeanRouter" />
>>>
>>> <bean abstract="true" name="baseResource" scope="prototype"
>>> class="ca.nrc.cadc.dp.web.restlet.resources.AbstractResource">
>>> 
>>> <property name="freeMarkerConfigViaConfigurer"
>>> ref="freeMarkerConfigurer" />
>>> </bean>
>>>
>>> Which is very straightforward and worked fine with the 1.1.x versions of
>>> RESTlet. Here are the relevant parts of my web.xml also:
>>>
>>> <context-param>
>>> <param-name>org.restlet.application</param-name>
>>> <param-value>application</param-value>
>>> </context-param>
>>>
>>> <servlet>
>>> <servlet-name>RestletServer</servlet-name>
>>>
>>> <servlet-class>org.restlet.ext.spring.SpringServerServlet</servlet-class>
>>> <load-on-startup>1</load-on-startup>
>>> </servlet>
>>>
>>> <servlet-mapping>
>>> <servlet-name>RestletServer</servlet-name>
>>> <url-pattern>/*</url-pattern>
>>> </servlet-mapping>
>>>
>>> My problem is that in my baseResource bean, I create a new
>>> ContextTemplateLoader for FreeMarker to use, and I pass it getContext()
>>> like so:
>>>
>>> /**
>>> * Set the FreeMarker Configuration.
>>> *
>>> * @param freeMarkerConfig The FreeMarker Configuration instance.
>>> */
>>> public void setFreeMarkerConfig(final Configuration freeMarkerConfig)
>>> {
>>> if (freeMarkerConfig == null)
>>> {
>>> throw new FreeMarkerConfigurationException(
>>> "FreeMarker Configuration cannot be NULL");
>>> }
>>>
>>> this.freeMarkerConfig = freeMarkerConfig;
>>>
>>> freeMarkerConfig.setTemplateLoader(
>>> new ContextTemplateLoader(getContext(),
>>> "war:///freemarker-templates/"));
>>> }
>>>
>>> public void setFreeMarkerConfigViaConfigurer(
>>> final FreeMarkerConfigurer springFreeMarkerConfigurer)
>>> {
>>> setFreeMarkerConfig(springFreeMarkerConfigurer.getConfiguration());
>>> }
>>>
>>> but getContext() returns null because the ServerResource's context
>>> member is null. Is there a step I need to set the Context? The
>>> SpringBeanFinder from the Router is passing in a null Context when the
>>> init(Context, Request, Response) method is called on the
>>> ServerResource. Has anyone else experienced this? I have not tried the
>>> SVN trunk of RESTlet yet.
>>>
>>> Many thanks!
>>> Dustin
>>>
>>>
>>>
>>
>
> ------------------------------------------------------
> http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2411727
>

Dustin N. Jenkins

Re: Null Context in ServerResource through SpringBeanFinder

Reply Threaded

From some further investigation, it looks like the problem stems from
the Finder class still using the deprecated methods, which require the
Resource class instead of the ServerResource class. Fixing this may be
as simple as overriding the findTarget() method to return the result of
the find() method.

Dustin

Dustin N. Jenkins wrote:

> Hi Jerome,
>
> I sent a tar file containing the source and WAR file, but the attachment
> was 4.4M in the end. It sent fine, but I haven't seen it pop up on
> here. Is there a better way to get it to you? Or will it come through
> eventually?
>
> Thanks,
> Dustin
>
>
> Jerome Louvel wrote:
>
>> Hi Dustin,
>>
>> Thanks for all the details. Would it be possible for you to send a mini
>> project (Eclipse or other) that would reproduce the issue? That would
>> really help us resolving any issue quickly.
>>
>> Best regards,
>> Jerome Louvel
>> --
>> Restlet ~ Founder and Lead developer ~ http://www.restlet.org
>> Noelios Technologies ~ Co-founder ~ http://www.noelios.com
>>
>>
>>
>> Dustin N. Jenkins a écrit :
>>
>>
>>> I should mention too that I have my component defined:
>>>
>>> 
>>> <bean name="component" class="org.restlet.ext.spring.SpringComponent">
>>> <property name="defaultTarget" ref="application" />
>>> <property name="context" ref="component.context" />
>>> <property name="clientsList">
>>> <list>
>>> <value>http</value>
>>> <value>file</value>
>>> </list>
>>> </property>
>>> </bean>
>>>
>>> <bean name="component.context"
>>>
>>> class="org.springframework.beans.factory.config.PropertyPathFactoryBean" />
>>>
>>> And also in my web.xml:
>>>
>>> <context-param>
>>> <param-name>org.restlet.component</param-name>
>>> <param-value>component</param-value>
>>> </context-param>
>>>
>>> Thanks!
>>> Dustin
>>>
>>>
>>> Dustin N. Jenkins wrote:
>>>
>>>
>>>
>>>> Hello!
>>>>
>>>> I'm using Java 1.6, Tomcat 6, RESTlet 2.0M5, Spring 2.5, the supported
>>>> version of FreeMarker, all on Linux.
>>>>
>>>> The relevant part of my spring configuration looks like this:
>>>>
>>>> <bean id="freeMarkerConfig"
>>>> class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
>>>> ...
>>>> </bean>
>>>>
>>>> <bean id="application" name="application" class="org.restlet.Application">
>>>> <property name="root" ref="router" />
>>>> ...
>>>> </bean>
>>>>
>>>> <bean name="router" class="org.restlet.ext.spring.SpringBeanRouter" />
>>>>
>>>> <bean abstract="true" name="baseResource" scope="prototype"
>>>> class="ca.nrc.cadc.dp.web.restlet.resources.AbstractResource">
>>>> 
>>>> <property name="freeMarkerConfigViaConfigurer"
>>>> ref="freeMarkerConfigurer" />
>>>> </bean>
>>>>
>>>> Which is very straightforward and worked fine with the 1.1.x versions of
>>>> RESTlet. Here are the relevant parts of my web.xml also:
>>>>
>>>> <context-param>
>>>> <param-name>org.restlet.application</param-name>
>>>> <param-value>application</param-value>
>>>> </context-param>
>>>>
>>>> <servlet>
>>>> <servlet-name>RestletServer</servlet-name>
>>>>
>>>> <servlet-class>org.restlet.ext.spring.SpringServerServlet</servlet-class>
>>>> <load-on-startup>1</load-on-startup>
>>>> </servlet>
>>>>
>>>> <servlet-mapping>
>>>> <servlet-name>RestletServer</servlet-name>
>>>> <url-pattern>/*</url-pattern>
>>>> </servlet-mapping>
>>>>
>>>> My problem is that in my baseResource bean, I create a new
>>>> ContextTemplateLoader for FreeMarker to use, and I pass it getContext()
>>>> like so:
>>>>
>>>> /**
>>>> * Set the FreeMarker Configuration.
>>>> *
>>>> * @param freeMarkerConfig The FreeMarker Configuration instance.
>>>> */
>>>> public void setFreeMarkerConfig(final Configuration freeMarkerConfig)
>>>> {
>>>> if (freeMarkerConfig == null)
>>>> {
>>>> throw new FreeMarkerConfigurationException(
>>>> "FreeMarker Configuration cannot be NULL");
>>>> }
>>>>
>>>> this.freeMarkerConfig = freeMarkerConfig;
>>>>
>>>> freeMarkerConfig.setTemplateLoader(
>>>> new ContextTemplateLoader(getContext(),
>>>> "war:///freemarker-templates/"));
>>>> }
>>>>
>>>> public void setFreeMarkerConfigViaConfigurer(
>>>> final FreeMarkerConfigurer springFreeMarkerConfigurer)
>>>> {
>>>> setFreeMarkerConfig(springFreeMarkerConfigurer.getConfiguration());
>>>> }
>>>>
>>>> but getContext() returns null because the ServerResource's context
>>>> member is null. Is there a step I need to set the Context? The
>>>> SpringBeanFinder from the Router is passing in a null Context when the
>>>> init(Context, Request, Response) method is called on the
>>>> ServerResource. Has anyone else experienced this? I have not tried the
>>>> SVN trunk of RESTlet yet.
>>>>
>>>> Many thanks!
>>>> Dustin
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>> ------------------------------------------------------
>> http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2411727
>>
>>
>
>

jlouvel

RE: Null Context in ServerResource through SpringBeanFinder

Reply Threaded

Hi Dustin,

The Finder class still uses deprecated methods for backward compatibility purpose. But, the code should be capable of dealing with both Handler/Resource and ServerResource subclasses.

Could you create a bug report and attach your test project to it (ideally just a subset allowing us to quickly reproduce). You shouldn't have any attachment size issue this way:
http://www.restlet.org/community/issues

Best regards,
Jerome Louvel
--
Restlet ~ Founder and Lead developer ~ http://www.restlet.org
Noelios Technologies ~ Co-founder ~ http://www.noelios.com

-----Message d'origine-----
De : Dustin N. Jenkins [mailto:[hidden email]]
Envoyé : jeudi 29 octobre 2009 21:26
À : [hidden email]
Objet : Re: Null Context in ServerResource through SpringBeanFinder

From some further investigation, it looks like the problem stems from
the Finder class still using the deprecated methods, which require the
Resource class instead of the ServerResource class. Fixing this may be
as simple as overriding the findTarget() method to return the result of
the find() method.

Dustin

Dustin N. Jenkins wrote: