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Sample Rest style service using just Scala and Java 6 annotations
package output
import javax.xml.bind.{ Marshaller, JAXBContext }
import javax.xml.bind.annotation._
import javax.xml.bind.util.JAXBSource
import javax.xml.transform.Source
import javax.xml.ws.{ Endpoint, Provider, ServiceMode, WebServiceContext, WebServiceProvider }
import javax.xml.ws.http.HTTPBinding
import javax.xml.ws.handler.MessageContext
import javax.annotation.Resource
@WebServiceProvider
@ServiceMode(value=javax.xml.ws.Service.Mode.MESSAGE)
class SampleService extends Provider[Source] {
@Resource
var wsContext : WebServiceContext = _ // Declared but non-init variable as this will be injected at runtime
override def invoke(source : Source) : Source = {
val mc = wsContext.getMessageContext();
val (path, method) = (mc.get(MessageContext.PATH_INFO), mc.get(MessageContext.HTTP_REQUEST_METHOD)) // Multiple val declaration
val marshaller = JAXBContext.newInstance("output").createMarshaller();
marshaller.setProperty("jaxb.formatted.output", true);
new JAXBSource(marshaller, new SampleDomainObject(message = "PATH: " + path + " ; METHOD: " + method))
}
}
object MinimalRestServer extends App { // body of this class is used as a closure in the main() method
val port = 8084
val endpoint = Endpoint.create( HTTPBinding.HTTP_BINDING, new SampleService());
endpoint.publish("http://localhost:" + port + "/");
println("Waiting for requests...")
}
@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
case class SampleDomainObject(val message: String = "name") {
def this() = this("") // Default no arg constructor required by JAXB
}
@XmlRegistry
class ObjectFactory {
import javax.xml.bind.JAXBElement // Note the package scoped imports for modularity
import javax.xml.bind.annotation.{ XmlElementDecl, XmlRegistry }
import javax.xml.namespace.QName
private val _SampleDomainObject_QNAME = new QName("", "SampleDomainObject");
def createSampleDomainObject() : SampleDomainObject = {
return new SampleDomainObject();
}
@XmlElementDecl(namespace = "", name = "SampleDomainObject")
def createJaxbLoginResp(value: SampleDomainObject) : JAXBElement[SampleDomainObject] = {
return new JAXBElement[SampleDomainObject](_SampleDomainObject_QNAME, classOf[SampleDomainObject], value);
}
}
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