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Posted to users@camel.apache.org by Reto Peter <re...@advanceit.ch> on 2022/10/17 17:38:35 UTC
Predicates
Hi
I have a simple question about the Predicates
I got a systemConfig object, which has 2 getters/setters.
The systemConfig object is set as an exchange property.
When I use a the simple function, that works!
from("direct:testPredicates")
.to("direct:getSystemConfig")
.choice()
.when(simple("${exchangeProperty.systemConfig.isActive} == false || ${exchangeProperty.systemConfig.isEnabled} == false"))
.log("System is active and System is enabled")
.otherwise()
.log("System is not active or MLSSync is disabled")
.end();
When I try to use Predicates, then I thought this should work like this:
Before the route:
Predicate isSystemActive = exchangeProperty("systemConfig.isActive").isEqualTo(true);
Predicate isSystemEnabled = exchangeProperty("systemConfig.isEnabled").isEqualTo(false);
Inside the route:
from("direct:testPredicates")
.to("direct:getSystemConfig")
.choice()
.when(and(isSystemActive, isSystemEnabled))
.log("System is active and System is enabled")
.otherwise()
.log("System is not active or MLSSync is disabled")
.end();
I am using Camel 3.18.2
RE: Predicates
Posted by Reto Peter <re...@advanceit.ch>.
Hi Claus
Thanks! Now it works
I do use: Predicate isSystemActive = simple("${exchangeProperty.systemConfig.isActive}").isEqualTo(true);
-----Original Message-----
From: Claus Ibsen <cl...@gmail.com>
Sent: Tuesday, 18 October 2022 09:13
To: users@camel.apache.org
Subject: Re: Predicates
Hi
systemConfig.isActive is a key name, so that only works if the property is really named like that.
Its not doing any kind of method call - i.e. calling isActive() on the property with key xxxx, that the simple can do.
On Tue, Oct 18, 2022 at 9:01 AM Reto Peter <re...@advanceit.ch> wrote:
> Hi Clause
>
> So for a header I can define a Predicate, but for a property I can't?
>
> Example with header: (that works?)
> Predicate isSystemActive = header("isSystemActive").isEqualTo("true");
>
> Example with property: (that doesn’t work?) Predicate isSystemActive =
> exchangeProperty ("systemConfig.isActive").isEqualTo(true);
>
> So later I can use:
> choice().when(isSystemActive)
>
> -----Original Message-----
> From: Claus Ibsen <cl...@gmail.com>
> Sent: Monday, 17 October 2022 20:49
> To: users@camel.apache.org
> Subject: Re: Predicates
>
> Hi
>
> > exchangeProperty("systemConfig.isActive")
>
> This is not simple language, but refers to a exchange property key
> with the given name.
> You need to use simple as predicate instead of exchangeProperty
>
>
>
>
>
>
> On Mon, Oct 17, 2022 at 7:38 PM Reto Peter <re...@advanceit.ch>
> wrote:
>
> > Hi
> > I have a simple question about the Predicates I got a systemConfig
> > object, which has 2 getters/setters.
> > The systemConfig object is set as an exchange property.
> >
> > When I use a the simple function, that works!
> > from("direct:testPredicates")
> > .to("direct:getSystemConfig")
> > .choice()
> > .when(simple("${exchangeProperty.systemConfig.isActive} == false ||
> > ${exchangeProperty.systemConfig.isEnabled} == false"))
> > .log("System is active and System is enabled")
> > .otherwise()
> > .log("System is not active or MLSSync is disabled")
> > .end();
> >
> > When I try to use Predicates, then I thought this should work like this:
> > Before the route:
> > Predicate isSystemActive =
> > exchangeProperty("systemConfig.isActive").isEqualTo(true);
> > Predicate isSystemEnabled =
> > exchangeProperty("systemConfig.isEnabled").isEqualTo(false);
> >
> > Inside the route:
> > from("direct:testPredicates")
> > .to("direct:getSystemConfig")
> > .choice()
> > .when(and(isSystemActive, isSystemEnabled))
> > .log("System is active and System is enabled")
> > .otherwise()
> > .log("System is not active or MLSSync is disabled")
> > .end();
> >
> > I am using Camel 3.18.2
> >
>
>
> --
> Claus Ibsen
> -----------------
> http://davsclaus.com @davsclaus
> Camel in Action 2: https://www.manning.com/ibsen2
>
--
Claus Ibsen
-----------------
http://davsclaus.com @davsclaus
Camel in Action 2: https://www.manning.com/ibsen2
Re: Predicates
Posted by Claus Ibsen <cl...@gmail.com>.
Hi
systemConfig.isActive is a key name, so that only works if the property is
really named like that.
Its not doing any kind of method call - i.e. calling isActive() on the
property with key xxxx, that the simple can do.
On Tue, Oct 18, 2022 at 9:01 AM Reto Peter <re...@advanceit.ch> wrote:
> Hi Clause
>
> So for a header I can define a Predicate, but for a property I can't?
>
> Example with header: (that works?)
> Predicate isSystemActive = header("isSystemActive").isEqualTo("true");
>
> Example with property: (that doesn’t work?)
> Predicate isSystemActive = exchangeProperty
> ("systemConfig.isActive").isEqualTo(true);
>
> So later I can use:
> choice().when(isSystemActive)
>
> -----Original Message-----
> From: Claus Ibsen <cl...@gmail.com>
> Sent: Monday, 17 October 2022 20:49
> To: users@camel.apache.org
> Subject: Re: Predicates
>
> Hi
>
> > exchangeProperty("systemConfig.isActive")
>
> This is not simple language, but refers to a exchange property key with
> the given name.
> You need to use simple as predicate instead of exchangeProperty
>
>
>
>
>
>
> On Mon, Oct 17, 2022 at 7:38 PM Reto Peter <re...@advanceit.ch>
> wrote:
>
> > Hi
> > I have a simple question about the Predicates I got a systemConfig
> > object, which has 2 getters/setters.
> > The systemConfig object is set as an exchange property.
> >
> > When I use a the simple function, that works!
> > from("direct:testPredicates")
> > .to("direct:getSystemConfig")
> > .choice()
> > .when(simple("${exchangeProperty.systemConfig.isActive} == false ||
> > ${exchangeProperty.systemConfig.isEnabled} == false"))
> > .log("System is active and System is enabled")
> > .otherwise()
> > .log("System is not active or MLSSync is disabled")
> > .end();
> >
> > When I try to use Predicates, then I thought this should work like this:
> > Before the route:
> > Predicate isSystemActive =
> > exchangeProperty("systemConfig.isActive").isEqualTo(true);
> > Predicate isSystemEnabled =
> > exchangeProperty("systemConfig.isEnabled").isEqualTo(false);
> >
> > Inside the route:
> > from("direct:testPredicates")
> > .to("direct:getSystemConfig")
> > .choice()
> > .when(and(isSystemActive, isSystemEnabled))
> > .log("System is active and System is enabled")
> > .otherwise()
> > .log("System is not active or MLSSync is disabled")
> > .end();
> >
> > I am using Camel 3.18.2
> >
>
>
> --
> Claus Ibsen
> -----------------
> http://davsclaus.com @davsclaus
> Camel in Action 2: https://www.manning.com/ibsen2
>
--
Claus Ibsen
-----------------
http://davsclaus.com @davsclaus
Camel in Action 2: https://www.manning.com/ibsen2
RE: Predicates
Posted by Reto Peter <re...@advanceit.ch>.
Hi Clause
So for a header I can define a Predicate, but for a property I can't?
Example with header: (that works?)
Predicate isSystemActive = header("isSystemActive").isEqualTo("true");
Example with property: (that doesn’t work?)
Predicate isSystemActive = exchangeProperty ("systemConfig.isActive").isEqualTo(true);
So later I can use:
choice().when(isSystemActive)
-----Original Message-----
From: Claus Ibsen <cl...@gmail.com>
Sent: Monday, 17 October 2022 20:49
To: users@camel.apache.org
Subject: Re: Predicates
Hi
> exchangeProperty("systemConfig.isActive")
This is not simple language, but refers to a exchange property key with the given name.
You need to use simple as predicate instead of exchangeProperty
On Mon, Oct 17, 2022 at 7:38 PM Reto Peter <re...@advanceit.ch> wrote:
> Hi
> I have a simple question about the Predicates I got a systemConfig
> object, which has 2 getters/setters.
> The systemConfig object is set as an exchange property.
>
> When I use a the simple function, that works!
> from("direct:testPredicates")
> .to("direct:getSystemConfig")
> .choice()
> .when(simple("${exchangeProperty.systemConfig.isActive} == false ||
> ${exchangeProperty.systemConfig.isEnabled} == false"))
> .log("System is active and System is enabled")
> .otherwise()
> .log("System is not active or MLSSync is disabled")
> .end();
>
> When I try to use Predicates, then I thought this should work like this:
> Before the route:
> Predicate isSystemActive =
> exchangeProperty("systemConfig.isActive").isEqualTo(true);
> Predicate isSystemEnabled =
> exchangeProperty("systemConfig.isEnabled").isEqualTo(false);
>
> Inside the route:
> from("direct:testPredicates")
> .to("direct:getSystemConfig")
> .choice()
> .when(and(isSystemActive, isSystemEnabled))
> .log("System is active and System is enabled")
> .otherwise()
> .log("System is not active or MLSSync is disabled")
> .end();
>
> I am using Camel 3.18.2
>
--
Claus Ibsen
-----------------
http://davsclaus.com @davsclaus
Camel in Action 2: https://www.manning.com/ibsen2
Re: Predicates
Posted by Claus Ibsen <cl...@gmail.com>.
Hi
> exchangeProperty("systemConfig.isActive")
This is not simple language, but refers to a exchange property key with the
given name.
You need to use simple as predicate instead of exchangeProperty
On Mon, Oct 17, 2022 at 7:38 PM Reto Peter <re...@advanceit.ch> wrote:
> Hi
> I have a simple question about the Predicates
> I got a systemConfig object, which has 2 getters/setters.
> The systemConfig object is set as an exchange property.
>
> When I use a the simple function, that works!
> from("direct:testPredicates")
> .to("direct:getSystemConfig")
> .choice()
> .when(simple("${exchangeProperty.systemConfig.isActive} == false ||
> ${exchangeProperty.systemConfig.isEnabled} == false"))
> .log("System is active and System is enabled")
> .otherwise()
> .log("System is not active or MLSSync is disabled")
> .end();
>
> When I try to use Predicates, then I thought this should work like this:
> Before the route:
> Predicate isSystemActive =
> exchangeProperty("systemConfig.isActive").isEqualTo(true);
> Predicate isSystemEnabled =
> exchangeProperty("systemConfig.isEnabled").isEqualTo(false);
>
> Inside the route:
> from("direct:testPredicates")
> .to("direct:getSystemConfig")
> .choice()
> .when(and(isSystemActive, isSystemEnabled))
> .log("System is active and System is enabled")
> .otherwise()
> .log("System is not active or MLSSync is disabled")
> .end();
>
> I am using Camel 3.18.2
>
--
Claus Ibsen
-----------------
http://davsclaus.com @davsclaus
Camel in Action 2: https://www.manning.com/ibsen2