Hi Claus and all, I struggled to better write the previous route, I've come to this final solution. It seem to me ok
Thank you for the support ;-) Cristiano <camelContext id="camelContext" xmlns="http://camel.apache.org/schema/spring "> <proxy id="myServiceProxy" serviceInterface="org.example.MyService" serviceUrl="direct:entry" /> <route> <from uri="direct:entry" /> <choice> <when> <simple>${body} is not 'org.apache.camel.component.bean.BeanInvocation'</simple> <throwException ref="unsupportedException" /> </when> <when> <simple>${body?.method?.name} == 'myMethod1'</simple> <to uri="log:endoint_1?showAll=true" /> </when> <when> <simple>${body?.method?.name} == 'myMethod2'</simple> <to uri="log:endoint_2?showAll=true" /> </when> <otherwise> <throwException ref="unsupportedException" /> </otherwise> </choice> </route> </camelContext> 2013/7/11 Cristiano Costantini <cristiano.costant...@gmail.com> > Hi Claus, > thanks again, > > yes I understand the problem, and I agree that the Simple language should > be simple ! > > While for my specific case, I've found that it exists an "is" operator in > simple language to test instanceof : > ${in.header.type} is 'java.lang.String' > > I can use it to check if the body is an instance of BeanInvocation, then > use the ?. operator, else route the message somewhere else. > > For example I can change the original XML route in this way (it is a bit > verbose but I hope it should work): > > <camelContext id="camelContext" xmlns=" > http://camel.apache.org/schema/spring";> > <proxy id="myServiceProxy" serviceInterface="org.example.MyService" > serviceUrl="direct:step1" /> > > <route> > <from uri="direct:step1" /> > <choice> > <when> > <simple>${body} is > 'org.apache.camel.component.bean.BeanInvocation'</simple> > <to uri="direct:step2" /> > </when> > <otherwise> > <throwException ref="unsupportedException" /> > </otherwise> > </choice> > </route> > > <route> > <from uri="direct:step2" /> > <setHeader headerName="methodName"> > <simple>${body?.method?.name}</simple> > </setHeader> > <choice> > <when> > <simple>${header.methodName} == 'myMethod1'</simple> > <to uri="log:endoint_1?showAll=true" /> > </when> > <when> > <simple>${header.methodName} == 'myMethod2'</simple> > <to uri="log:endoint_2?showAll=true" /> > </when> > <otherwise> > <throwException ref="unsupportedException" /> > </otherwise> > </choice> > </route> > </camelContext> > > > Please note that I've not tested yet the above route!! > And again, any improvement is welcome. ;-) > > Cristiano > > > > > > > > > > > 2013/7/11 Claus Ibsen <claus.ib...@gmail.com> > >> Hi >> >> Ah yeah the null safe doesn't apply for methods not found. >> I am not sure if this is a good idea to add support for that. As if >> you have a typo in the method name, then the null safe will ignore >> that also. >> >> And adding more stuff to the syntax would just confuse even more, eg >> >> For example with a double ?? to indicate ignore method not found. >> >> ${body??.method??.name} >> >> The ? is null safe, so its if the getMethod returns null, then break >> out of the OGNL path. >> >> >> >> >> >> On Wed, Jul 10, 2013 at 7:01 PM, Cristiano Costantini >> <cristiano.costant...@gmail.com> wrote: >> > mmmm, >> > I would need exactly that, but I've tested sending a string with a >> producer >> > template and I got this error: >> > >> > Failed to invoke method: ?.method?.name on null due to: >> > org.apache.camel.language.bean.RuntimeBeanExpressionException: Failed to >> > invoke method: method on null due to: >> > org.apache.camel.component.bean.MethodNotFoundException: Method with >> name: >> > method not found on bean: Hello World! of type: java.lang.String. >> > Exchange[Message: Hello World!] >> > >> > caused by >> > >> > Failed to invoke method: method on null due to: >> > org.apache.camel.component.bean.MethodNotFoundException: Method with >> name: >> > method not found on bean: Hello World! of type: java.lang.String. >> > Exchange[Message: Hello World!] >> > >> > >> > again caused by >> > >> > >> > Method with name: method not found on bean: Hello World! of type: >> > java.lang.String. Exchange[Message: Hello World!] >> > >> > >> > I'm using camel 2.10.4... >> > Any suggestion? >> > >> > Thanks, >> > Cristiano >> > >> > >> > >> > >> > >> > >> > 2013/7/10 Claus Ibsen <claus.ib...@gmail.com> >> > >> >> There is a ? operator, so you can do >> >> >> >> <simple>${body?.method?.name</simple> >> >> >> >> Then it will be null if the body if the body doesnt have a >> >> getMethod().getName() >> >> >> >> There is also a bodyAs(type) to use the Camel type converter. >> >> >> >> >> >> >> >> On Wed, Jul 10, 2013 at 4:48 PM, Cristiano Costantini >> >> <cristiano.costant...@gmail.com> wrote: >> >> > mmm, it seems that "<simple>${body.method.name}</simple>" works: >> >> > >> >> > <setHeader headerName="methodName"> >> >> > <simple>${body.method.name}</simple> >> >> > </setHeader> >> >> > >> >> > >> >> > Any comment about this solution? (is it good?) >> >> > >> >> > What happens if the body is not of class >> >> > org.apache.camel.component.bean.BeanInvocation? >> >> > Is there a way to check if body is of the right instance? >> >> > >> >> > Many thanks!!! >> >> > >> >> > Cristiano >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > 2013/7/10 Cristiano Costantini <cristiano.costant...@gmail.com> >> >> > >> >> >> Hi All, >> >> >> >> >> >> I have a Camel Proxy that pushes "BeanInvokation" exchanges to a >> camel >> >> >> route, and I want to route these messages depending on the method >> name >> >> that >> >> >> is invoked. >> >> >> >> >> >> Is there any way to extract this information and put into an header >> so >> >> to >> >> >> use it in a <choice>? >> >> >> >> >> >> >> >> >> For example, considering the following XML code: >> >> >> >> >> >> <camelContext id="camelContext" xmlns=" >> >> >> http://camel.apache.org/schema/spring";> >> >> >> <proxy id="myServiceProxy" serviceInterface="org.example.MyService" >> >> >> serviceUrl="direct:entry" /> >> >> >> >> >> >> <route> >> >> >> <from uri="direct:entry" /> >> >> >> <setHeader headerName="methodName"> >> >> >> <?? how to extract the method name ??> >> >> >> </setHeader> >> >> >> >> >> >> <choice> >> >> >> <when> >> >> >> <simple>${header.methodName} == 'myMethod1'</simple> >> >> >> <to uri="log:endoint_1?showAll=true" /> >> >> >> </when> >> >> >> <when> >> >> >> <simple>${header.methodName} == 'myMethod2'</simple> >> >> >> <to uri="log:endoint_2?showAll=true" /> >> >> >> </when> >> >> >> <otherwise> >> >> >> <throwException ref="unsupportedException" /> >> >> >> </otherwise> >> >> >> </choice> >> >> >> </route> >> >> >> </camelContext> >> >> >> >> >> >> >> >> >> I'm searching for a solution to be used between the two <setHeader> >> >> tags. >> >> >> >> >> >> I know I can write a processor, but I will have problems deploying >> it to >> >> >> the classpath where I put the route, so I need a solution that rely >> on >> >> the >> >> >> default camel capability (like using simple language or other >> expression >> >> >> languages available with camel). >> >> >> >> >> >> >> >> >> Any idea? >> >> >> Thank you all! >> >> >> >> >> >> Cristiano >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> -- >> >> Claus Ibsen >> >> ----------------- >> >> Red Hat, Inc. >> >> Email: cib...@redhat.com >> >> Twitter: davsclaus >> >> Blog: http://davsclaus.com >> >> Author of Camel in Action: http://www.manning.com/ibsen >> >> >> >> >> >> -- >> Claus Ibsen >> ----------------- >> Red Hat, Inc. >> Email: cib...@redhat.com >> Twitter: davsclaus >> Blog: http://davsclaus.com >> Author of Camel in Action: http://www.manning.com/ibsen >> > >
