Hi Kim,
So, first of all you cannot pass message properties to the class mediator as
I described earlier and you will have to use the POJOCommand mediator to
handle such a case.
Being said that, by looking at your code and the requirement, you could use
the Class Mediator that you wrote but with a little different but straight
forward manner to get this working;
I the design I am proposing the mediator code that you wrote doesn't have to
have class fields called "reqUsername" and "reqPassword" and you could
extract these values inside the method itself using the
MessageContext.getPropety(String propertyName) API call. So the code
fragment in the mediate method has to be changed to the following fragment
and the two fields has to go away;
public boolean mediate(MessageContext synCtx) {
log.debug("CreateBasicAuthMediator: Create Auth Header started...");
if (synCtx.getProperty("Username") == null) {
throw new SynapseException("reqUsername property MUST be
provided!");
}
String sAuth = reqUsername;
if (synCtx.getProperty("Password") != null) {
sAuth = sAuth + ":" + synCtx.getProperty("Password");
}
// Extract authentication headers
org.apache.axis2.context.MessageContext mc = ((Axis2MessageContext)
synCtx).getAxis2MessageContext();
Map map = (Map)
mc.getProperty(org.apache.axis2.context.MessageContext.TRANSPORT_HEADERS);
// Set the authentication headers
map.put("Authorization", "Basic " + (String)
Base64.encode(sAuth.getBytes()));
log.debug("CreateBasicAuthMediator: Auth Created succeeded!");
return true;
}
And the script has to set the reqUsername and reqPassword values as message
context properties with names "Username" and "Password" respectively.
You could use the MessageContext.setProperty(String name, String value); API
call to store the message context property from the script.
Hope this will solve the issue :-)
Thanks,
Ruwan
On Wed, Mar 11, 2009 at 10:23 AM, kimhorn <[email protected]> wrote:
>
> We'll that will save me some time.. I was just about the test a POJOComand
> trying to access the MessageContext with init.
>
> However, I'm now I confused. In the prior POST you mentioned:
>
> "So if you have them in the message as properties, then you could use a
> pojoCommand mediator [1] and use the expression attrbiute to specify an
> xpath to extract the values stored in the message. If that is stored as a
> property in the message context you could user the get-property function by
> passing the property name as the expression. "
>
> This is from the "Java Class Properties Setting" posts...
>
> The issue was changing the username and password per message for a mediator
> that adds these to the Transport Header, see java attached.
>
> http://www.nabble.com/file/p22448842/CreateBasicAuthMediator.java
> CreateBasicAuthMediator.java
>
> I believe it was suggested that I convert this from a Class Mediator to a
> POJOCommand.
> How can I pass different property values, per message, to some Java code
> that can access the MessageContext ?
>
> So in the above I would need to pass different username and passwords for
> different users but these values are set elsewhere in the script. The
> original issue was how to pass property value based on an XPath to Class,
> and it was agreed this could not be done.
>
>
>
>
> Ruwan Linton wrote:
> >
> > Hi Kim,
> >
> > You cannot get the messageContext into the POJOCommand mediator, and it
> > doesn't support the init method as well.
> >
> > You have the access to the message context through the properties because
> > it
> > always set and get the properties from the current message, you can use
> > the
> > UpdateMessage action with a xpath expression to update the message with
> > the
> > out put from the POJO.
> >
> > Thanks,
> > Ruwan
> >
> > On Tue, Mar 10, 2009 at 7:17 AM, kimhorn <[email protected]> wrote:
> >
> >>
> >>
> >> Should / Can the POJO implement ManagedLifecycle to get the Synapse
> >> Environment to get the
> >> MesageContext?
> >>
> >>
> >>
> >> kimhorn wrote:
> >> >
> >> > Does any one have a Java example of a POJOCommand that uses Message
> >> > Context.
> >> > Unclear how you access it from execute method ?
> >> >
> >> > Background to this is in "Java Class Properties Setting" item,
> >> including
> >> > the Java
> >> > code.
> >> >
> >> > Basically it was recomended to convert this from a Mediator to a POJO
> >> but
> >> > not
> >> > sure it can be done ?
> >> >
> >> >
> >> >
> >> >
> >>
> >> --
> >> View this message in context:
> >>
> http://www.nabble.com/Accessing-Message-Context-in-POJOCommand-tp22425548p22426517.html
> >> Sent from the Synapse - User mailing list archive at Nabble.com.
> >>
> >>
> >
> >
> > --
> > Ruwan Linton
> > Senior Software Engineer & Product Manager; WSO2 ESB;
> http://wso2.org/esb
> > WSO2 Inc.; http://wso2.org
> > email: [email protected]; cell: +94 77 341 3097
> > blog: http://ruwansblog.blogspot.com
> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/Accessing-Message-Context-in-POJOCommand-tp22425548p22448842.html
> Sent from the Synapse - User mailing list archive at Nabble.com.
>
>
--
Ruwan Linton
Senior Software Engineer & Product Manager; WSO2 ESB; http://wso2.org/esb
WSO2 Inc.; http://wso2.org
email: [email protected]; cell: +94 77 341 3097
blog: http://ruwansblog.blogspot.com
