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Posted to user@struts.apache.org by Jerry Jalenak <Je...@LABONE.com> on 2004/06/21 16:11:56 UTC
[OT] Accessing Http Request with Groovy
Hi Guys -
I know this is a little off topic, but the groovy mailing list doesn't seem
to be very active, and I need to track down an answer on this. What I'm
trying to do is call a groovy script from a java class (an Action) and pass
over the current Http Request object. Here's the calling Java code :
<snip>
GroovyClassLoader groovyClassLoader = new
GroovyClassLoader(classLoader);
Class groovyClass =
groovyClassLoader.parseClass(form.getValidationScript());
GroovyObject groovyObject = (GroovyObject)
groovyClass.newInstance();
Object[] args = {_request};
validated = ((Boolean) groovyObject.invokeMethod("run",
args)).booleanValue();
</snip>
And here's the (very basic) groovy script :
<snip>
import javax.servlet.http.HttpServletRequest;
public class Validate {
public Boolean run(HttpServletRequest request) {
println("queryString is " +
request.getQueryString());
return new Boolean(true);
}
}
</snip>
When I run this I'm getting the following error :
java.lang.NoClassDefFoundError:
org/apache/coyote/tomcat5/CoyoteRequestFacade
gjdk.org.apache.coyote.tomcat5.CoyoteRequestFacade_GroovyReflector.invoke(Co
yoteRequestFacade_GroovyReflector.java)
groovy.lang.MetaMethod.invoke(MetaMethod.java:110)
groovy.lang.MetaClass.doMethodInvoke(MetaClass.java:1020)
groovy.lang.MetaClass.invokeMethod(MetaClass.java:314)
org.codehaus.groovy.runtime.Invoker.invokeMethod(Invoker.java:139)
org.codehaus.groovy.runtime.InvokerHelper.invokeNoArgumentsMethod(InvokerHel
per.java:102)
Validate.run(script1087827061572.groovy:4)
gjdk.Validate_GroovyReflector.invoke(Validate_GroovyReflector.java)
groovy.lang.MetaMethod.invoke(MetaMethod.java:110)
groovy.lang.MetaClass.doMethodInvoke(MetaClass.java:1020)
groovy.lang.MetaClass.invokeMethod(MetaClass.java:314)
gjdk.groovy.lang.MetaClass_GroovyReflector.invoke(MetaClass_GroovyReflector.
java)
groovy.lang.MetaMethod.invoke(MetaMethod.java:110)
groovy.lang.MetaClass.doMethodInvoke(MetaClass.java:1020)
groovy.lang.MetaClass.invokeMethod(MetaClass.java:314)
org.codehaus.groovy.runtime.Invoker.invokeMethod(Invoker.java:139)
org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:10
6)
Validate.invokeMethod(script1087827061572.groovy)
org.appframework.controller.Controller.process(Controller.java:213)
org.appframework.controller.Controller.doGet(Controller.java:104)
javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
For some reason groovy is looking for the CoyoteRequestFacade, not the
normal javax.servlet.http.HttpServletRequest. So, for all of you groovy
guru's out there, how can I do this?
Thanks!
Jerry Jalenak
Development Manager, Web Publishing
LabOne, Inc.
10101 Renner Blvd.
Lenexa, KS 66219
(913) 577-1496
jerry.jalenak@labone.com
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Re: [OT] Accessing Http Request with Groovy
Posted by Kris Schneider <kr...@dotech.com>.
How is "classLoader" obtained? Is it set to
Thread.currentThread().getContextClassLoader()?
Quoting Jerry Jalenak <Je...@LABONE.com>:
> Hi Guys -
>
> I know this is a little off topic, but the groovy mailing list doesn't seem
> to be very active, and I need to track down an answer on this. What I'm
> trying to do is call a groovy script from a java class (an Action) and pass
> over the current Http Request object. Here's the calling Java code :
>
> <snip>
>
> GroovyClassLoader groovyClassLoader = new
> GroovyClassLoader(classLoader);
> Class groovyClass =
> groovyClassLoader.parseClass(form.getValidationScript());
>
> GroovyObject groovyObject = (GroovyObject)
> groovyClass.newInstance();
> Object[] args = {_request};
> validated = ((Boolean) groovyObject.invokeMethod("run",
> args)).booleanValue();
>
> </snip>
>
> And here's the (very basic) groovy script :
>
> <snip>
>
> import javax.servlet.http.HttpServletRequest;
> public class Validate {
> public Boolean run(HttpServletRequest request) {
> println("queryString is " +
> request.getQueryString());
> return new Boolean(true);
> }
> }
>
> </snip>
>
> When I run this I'm getting the following error :
>
> java.lang.NoClassDefFoundError:
> org/apache/coyote/tomcat5/CoyoteRequestFacade
>
> gjdk.org.apache.coyote.tomcat5.CoyoteRequestFacade_GroovyReflector.invoke(Co
> yoteRequestFacade_GroovyReflector.java)
> groovy.lang.MetaMethod.invoke(MetaMethod.java:110)
> groovy.lang.MetaClass.doMethodInvoke(MetaClass.java:1020)
> groovy.lang.MetaClass.invokeMethod(MetaClass.java:314)
> org.codehaus.groovy.runtime.Invoker.invokeMethod(Invoker.java:139)
>
> org.codehaus.groovy.runtime.InvokerHelper.invokeNoArgumentsMethod(InvokerHel
> per.java:102)
> Validate.run(script1087827061572.groovy:4)
> gjdk.Validate_GroovyReflector.invoke(Validate_GroovyReflector.java)
> groovy.lang.MetaMethod.invoke(MetaMethod.java:110)
> groovy.lang.MetaClass.doMethodInvoke(MetaClass.java:1020)
> groovy.lang.MetaClass.invokeMethod(MetaClass.java:314)
>
> gjdk.groovy.lang.MetaClass_GroovyReflector.invoke(MetaClass_GroovyReflector.
> java)
> groovy.lang.MetaMethod.invoke(MetaMethod.java:110)
> groovy.lang.MetaClass.doMethodInvoke(MetaClass.java:1020)
> groovy.lang.MetaClass.invokeMethod(MetaClass.java:314)
> org.codehaus.groovy.runtime.Invoker.invokeMethod(Invoker.java:139)
>
> org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:10
> 6)
> Validate.invokeMethod(script1087827061572.groovy)
> org.appframework.controller.Controller.process(Controller.java:213)
> org.appframework.controller.Controller.doGet(Controller.java:104)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
>
> For some reason groovy is looking for the CoyoteRequestFacade, not the
> normal javax.servlet.http.HttpServletRequest. So, for all of you groovy
> guru's out there, how can I do this?
>
> Thanks!
>
> Jerry Jalenak
> Development Manager, Web Publishing
> LabOne, Inc.
> 10101 Renner Blvd.
> Lenexa, KS 66219
> (913) 577-1496
>
> jerry.jalenak@labone.com
--
Kris Schneider <ma...@dotech.com>
D.O.Tech <http://www.dotech.com/>
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