Hello camel community,
I’m taking my first steps in migrating from camel 2.25.1 to 3.0.0. Since
(nearly) all our camel routes (more then 2000) are written using spring dsl,
this migration is a very big job.
Our spring dsl routes regularly use external file scripting for doing some
“coding” things. Until now, we used javascript for those scripting
requirements. Javascript is not supported anymore in camel3 (and newer java
versions) and therefore we will switch to groovy as scripting language.
I have several scripts where I need to access global camel context properties.
In javascript, I did a properties.resolve("tris.dlq.mailer.to") call to resolve
the properties. The
https://camel.apache.org/components/latest/languages/groovy-language.html shows
that the properties (as org.apache.camel.builder.script.PropertiesFunction) are
passed to the external groovy file but I does not seems to work. A display of
the groovy properties variables shows something like “{class=class
Script_8adfd05454ebe3bbb0f3980896103164, binding=groovy.lang.Binding@62787393}”
of type java.util.LinkedHashMap.
Examining the content of the “binding” also proves that there is no
“properties” available.
The question I have for the community is how to work with global camel context
properties in groovy.
Possible solutions could be:
1. value =
camelContext.getPropertiesComponent().resolveProperty("tris.dlq.mailer.to").get();
⇒ gives a good result
2. value = camelContext.globalOptions.get("tris.dlq.mailer.to"); ⇒ gives a good
result
3. value =
org.apache.camel.builder.Builder.simple("properties:tris.dlq.mailer.to").evaluate(exchange,
java.lang.String.class); ⇒ gives “properties:tris.dlq.mailer.to” as result and
is not good
4. value =
org.apache.camel.builder.Builder.simple("${properties:tris.dlq.mailer.to}").evaluate(exchange,
java.lang.String.class); ⇒ gives a “No such property: tris for class:
Script_56c358fac7b1c2c9df318d99c84d4670” error message.
The first option seems to be the best because it also supports default values.
--
Met vriendelijke groeten / Kind regards / Cordialement / Mit besten Grüßen,
Ronny AERTS
Product Owner Integrations / Integrations Manager
e: mailto:[email protected] | t: +32 (0) 3 326 50 75
https://www.linkedin.com/in/ronnyaerts/
https://www.intris.be/ / https://www.wisetechglobal.com/ | Empowering and
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