You have to use the @XPath annotation in the bean. There is a JIRA ticket to allow from the DSL to use multiple expressions to define the parameter binding, but this is not yet implemented.
So you can do something alike <bean ref="xmlFilter" method="match"> <xpath>/Example/user</xpath> <header>foo</header> </bean> But again, this has not been implemented. On Wed, Feb 1, 2012 at 10:06 PM, Gershaw, Geoffrey <[email protected]> wrote: > Thanks Claus, > > I was trying to keep out the Camel annotations. I wanted to have all the > config/routes in Spring. My example route is: > >> <route> >> >> <from>"ftp://rider.com/orders?username=rider&password=secret";</from> >> <filter> >> <simple>${bean:xmlFilter?method=match}</simple> >> <to uri="log:worked"/> >> </filter> >> </route> > > How can I use XPath to pass the user to xmlFilter.match() in the below? > > <simple>${bean:xmlFilter?method=match}</simple> > > Thanks > -----Original Message----- > From: Claus Ibsen [mailto:[email protected]] > Sent: Wednesday, February 01, 2012 9:26 AM > To: [email protected] > Subject: Re: Passing parameter values to bean methods via spring > > Hi > > You can use the Camel @Xpath annotation on a 2nd parameter in that > method signature > > public boolean match(String username, @XPath("/Example/User") String user) { > > You may have to fiddle a bit to get the xpath expression working. > Also sometimes you may have to use /text() to tell it to return the > text content of the xml node. > > > > On Wed, Feb 1, 2012 at 3:05 PM, Gershaw, Geoffrey > <[email protected]> wrote: >> Thanks for the reply. Could you give me an example for 1c? I mocked up an >> example. Assume the below XML comes from the ftp site. The XMLFilter's >> match method accepts the username. How can I use XPath to pass the user to >> the match method? >> >> >> <Example> >> >> <User>joe</User> >> >> </Example> >> >> Class XMLFilter{ >> >> public boolean match(String username){ >> //check db for user >> //if found return true/else false >> } >> } >> >> <route> >> >> <from>"ftp://rider.com/orders?username=rider&password=secret";</from> >> <filter> >> <simple>${bean:xmlFilter?method=match}</simple> >> <to uri="log:worked"/> >> </filter> >> </route> >> >> Thanks >> >> -----Original Message----- >> From: Claus Ibsen [mailto:[email protected]] >> Sent: Wednesday, February 01, 2012 3:20 AM >> To: [email protected] >> Subject: Re: Passing parameter values to bean methods via spring >> >> Hi >> >> On Tue, Jan 31, 2012 at 5:10 PM, Gershaw, Geoffrey >> <[email protected]> wrote: >>> Hello, >>> >>> >>> >>> I am a newbie to Camel. I've read a bunch of docs, but have not found an >>> answer to this specific use case. >>> >> >> Welcome to the community. >> >>> >>> >>> 1. Assume the following. >>> >>> a. I have the belown XML msg in the body of my Message. >>> >>> <Example> >>> >>> <User>joe</User> >>> >>> </Example> >>> >>> b. I am using a bean as a Filter. The method signature is >>> >>> i. >>> public boolean validateUser(String user) >>> >>> c. Ideally I would like to user xpath in the config file to pass >>> "Joe" to the validateUser method >>> >> >> Yes xpath works fine for grabbing content from a XML doc. >> However where it get tricky is if your XML uses namespaces. If so >> your XPath expression *must* also use namespaces. >> >> >>> d. If the method returns false, I would like the route to stop. >>> Don't know how to do this. >>> >> >> You can use a Content Based Router, and in the otherwise leg, you can >> use the stop DSL. >> >> >>> e. If the method returns true, I would like to pass the original >>> XML msg to a processor and finish the route. >>> >> >> Yes this happens already, the filter predicate is just for determine >> true | false >> >>> f. Is this possible? >>> >>> >> >> Yes, something a like >> >> from X >> choice >> when bean (myFilterBean) >> to Y >> otherwise >> stop >> >> >> >>> >>> >>> >>> Thanks >>> >>> Geoff Gershaw >>> >>> >>> =============================================================================== >>> Please access the attached hyperlink for an important electronic >>> communications disclaimer: >>> http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html >>> =============================================================================== >>> >> >> >> >> -- >> Claus Ibsen >> ----------------- >> FuseSource >> Email: [email protected] >> Web: http://fusesource.com >> Twitter: davsclaus, fusenews >> Blog: http://davsclaus.blogspot.com/ >> Author of Camel in Action: http://www.manning.com/ibsen/ >> >> =============================================================================== >> Please access the attached hyperlink for an important electronic >> communications disclaimer: >> http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html >> =============================================================================== >> > > > > -- > Claus Ibsen > ----------------- > FuseSource > Email: [email protected] > Web: http://fusesource.com > Twitter: davsclaus, fusenews > Blog: http://davsclaus.blogspot.com/ > Author of Camel in Action: http://www.manning.com/ibsen/ > > =============================================================================== > Please access the attached hyperlink for an important electronic > communications disclaimer: > http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html > =============================================================================== > -- Claus Ibsen ----------------- FuseSource Email: [email protected] Web: http://fusesource.com Twitter: davsclaus, fusenews Blog: http://davsclaus.blogspot.com/ Author of Camel in Action: http://www.manning.com/ibsen/
