Hi,
If you manage to access your variable with a simple expression this should work
(e.g. if a is a static field of YourRouteBuilder class, you might be able to
access it as ${your.package.YourRouteBuilderClass.a}), though I have never
tried that. A processor might be easier.
Best regards
Stephan
-----Original Message-----
From: Kasim Sert (Ibtech-Software Infrastructure)
[mailto:kasim.s...@ibtech.com.tr]
Sent: Mittwoch, 13. April 2016 12:08
To: users@camel.apache.org
Subject: RE: Changing header value
Hi,
You mean since its a constant expression it is evaluated at the beginning and
not changed after as far as I understand. So can I do it with simple expression
instead of constant or should I introduce new processor to make it read current
value of variable a.
Thank you.
-----Original Message-----
From: Siano, Stephan [mailto:stephan.si...@sap.com]
Sent: Wednesday, April 13, 2016 12:11 PM
To: users@camel.apache.org
Subject: RE: Changing header value
Hi,
At the beginning of the route you are setting the header to the value a has
when the route is started (it's a constant expression). In the processor you
are incrementing the value and are then setting the header to the current value
of the variable a, so the route behaves as one would expect.
Best regards
Stephan
-----Original Message-----
From: Kasim Sert (Ibtech-Software Infrastructure)
[mailto:kasim.s...@ibtech.com.tr]
Sent: Mittwoch, 13. April 2016 10:52
To: users@camel.apache.org
Subject: Changing header value
Hi,
Can somebody please explain, why header value for starting always remains same
although its changed in processor ?
Route:
İnt a=1
from("timer://myTimer2?period=1000")
.setHeader("myheader", constant(a))
.log("starting...${header[myheader]}")
.process(new Processor() {
@Override
public void process(Exchange exchange)
throws Exception {
a = a+1 ;
exchange.getIn().setHeader("myheader",
constant(a));
Thread.sleep(10000);
}
})
.log("ending...${header[myheader]}");
Log produced:
2016-04-13 11:45:47,894 [imer://myTimer2] INFO route1
- starting...1
2016-04-13 11:45:57,899 [imer://myTimer2] INFO route1
- ending...2
2016-04-13 11:45:57,900 [imer://myTimer2] INFO route1
- starting...1
2016-04-13 11:46:07,900 [imer://myTimer2] INFO route1
- ending...3
2016-04-13 11:46:07,900 [imer://myTimer2] INFO route1
- starting...1
2016-04-13 11:46:17,901 [imer://myTimer2] INFO route1
- ending...4
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