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For example you could use the groovy function to create an Predicate in a Message Filter or as an Expression for a Recipient List
Customizing Groovy Shell
Sometimes you may need to use custom GroovyShell
instance in your Groovy expressions. To provide custom GroovyShell
, add implementation of the org.apache.camel.language.groovy.GroovyShellFactory
SPI interface to your Camel registry. For example after adding the following bean to your Spring context...
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public class CustomGroovyShellFactory implements GroovyShellFactory {
GroovyShell createGroovyShell(Exchange exchange) {
ImportCustomizer importCustomizer = new ImportCustomizer()
importCustomizer.addStaticStars 'com.example.Utils'
CompilerConfiguration configuration = new CompilerConfiguration()
configuration.addCompilationCustomizers(importCustomizer)
return new GroovyShell(configuration)
}
} |
...Camel will use your custom GroovyShell instance (containing your custom static imports), instead of the default one.
Example
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// lets route if a line item is over $100 from("queue:foo").filter(groovy("request.lineItems.any { i -> i.value > 100 }")).to("queue:bar") |
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