Groovy and Camel: Example 2

#!/usr/bin/env groovy
import org.apache.camel.*

@Grapes([
  @Grab('org.springframework:spring:2.5.6'),
  @Grab('org.apache.camel:camel-core:2.2.0'),
  @GrabConfig(systemClassLoader = true)
])

class QuoteServiceBean {
  public String usStock(String symbol) {
    "${symbol}: 123.50 US\$"
  }
  public String hkStock(String symbol) {
    "${symbol}: 90.55 HK\$"
  }
}

class MyRouteBuilder extends org.apache.camel.builder.RouteBuilder {
  void configure() {

    from("direct://quote").choice()
    .when(body().contains(".HK")).bean(QuoteServiceBean.class, "hkStock")
    .otherwise().bean(QuoteServiceBean.class, "usStock")
    .end().to("mock://result")

    from("direct://xmlquote").transform()
    .xpath("//quote/@symbol", String.class)
    .to("direct://quote")
  }
}

ctx = new org.apache.camel.impl.DefaultCamelContext()
ctx.addRoutes new MyRouteBuilder()
ctx.start()

p = ctx.createProducerTemplate()
p.sendBody("direct:quote", "00005.HK")
p.sendBody("direct:xmlquote", "<quote symbol='IBM'/>")
p.sendBody("direct:xmlquote", "<quote symbol='00005.HK'/>")

e = ctx.getEndpoint("mock://result")
e.exchanges.each { ex ->
  println "INFO> in.body='${ex.in.body}'"
}