FW: Context param question

[Robert Read <r....@auckland.ac.nz>]

Hi all,

 

I have written a Custom Beehive Control that wraps the J2SSH Java
library for obtaining an SSH connection and SFTP session with a remote
host for the purpose of transferring a file.  The new control implements
PGP authentication against the remote server using a public/private
key-pair.

 

This works fine between my desktop and an in-house remote host when the
values for the host, port #, user, path to the keyfile, passphrase etc.
are hard-coded.

 

I have parameterised these values so that the control can be configured
externally and I am attempting to use the
http://beehive.apache.org/docs/1.0.1/controls/apidocs/javadoc/org/apache
/beehive/controls/runtime/servlet/ServletBeanContext.html
<http://beehive.apache.org/docs/1.0.1/controls/apidocs/javadoc/org/apach
e/beehive/controls/runtime/servlet/ServletBeanContext.html>  to gain a
reference to the ServletContext and get the values for the parameters
from context-param entries in the web.xml config file by calling
getInitParameter(String name) on the ServletContext.

 

The Beehive documentation states that defining a reference in the
Control implementation class and annotating it @Context will suffice for
its initialisation, but I get the following stack trace:

 

Exception in sendFile
org.apache.beehive.controls.api.ControlException: Control initialization
failure[org.apache.beehive.controls.api.ControlException: Contextual
service org.apache.beehive.controls.runtime.servlet.ServletBeanContext
is not available]
Caused by: org.apache.beehive.controls.api.ControlException: Contextual
service org.apache.beehive.controls.runtime.servlet.ServletBeanContext
is not available
    ... 40 more
at
org.apache.beehive.controls.runtime.bean.ControlBean.ensureControl(Contr
olBean.java:325) 
at controls.SftpBean.sendFile(SftpBean.java:111) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39) 
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25) 
at java.lang.reflect.Method.invoke(Method.java:585) 
at
com.bea.wli.knex.runtime.jcs.container.JcsProxy.invokeBeehiveControl(Jcs
Proxy.java:666) 
at
com.bea.wli.knex.runtime.jcs.container.JcsProxy.invoke(JcsProxy.java:433
) 
at controls.Sftp.sendFile(Unknown Source) 
at processes.UoaSerkoUserExtract.sftpPut1(UoaSerkoUserExtract.jws:122)

 

 

I attempt to call the ServletBeanContext.getServletContext() method from
the onAcquire() lifecycle method of my control.  I also have a
ResourceContext associated with the onAcquire() method via an
@EventHandler annotation. 

 

Any ideas why the ServletBeanContext is not available and what I could
do to ensure it is?

 

Cheers,

Robert

 

Robert Read,

Analyst Programmer,

ITS Group Applications,

The University of Auckland.

 

Ph +64 9 923 2475

Ext 82475

Email r.read@auckland.ac.nz

Web www.auckland.ac.nz