package ca.uhn.hl7v2.hoh.hapi.server;
import java.util.HashMap;
import ca.uhn.hl7v2.HL7Exception;
import ca.uhn.hl7v2.hoh.api.IMessageHandler;
import ca.uhn.hl7v2.hoh.api.IReceivable;
import ca.uhn.hl7v2.hoh.api.IResponseSendable;
import ca.uhn.hl7v2.hoh.api.MessageProcessingException;
import ca.uhn.hl7v2.hoh.raw.api.RawSendable;
import ca.uhn.hl7v2.hoh.raw.server.HohRawServlet;
import ca.uhn.hl7v2.protocol.ApplicationRouter;
import ca.uhn.hl7v2.protocol.ReceivingApplication;
import ca.uhn.hl7v2.protocol.Transportable;
import ca.uhn.hl7v2.protocol.impl.AppRoutingDataImpl;
import ca.uhn.hl7v2.protocol.impl.ApplicationRouterImpl;
import ca.uhn.hl7v2.protocol.impl.TransportableImpl;
public class HohServlet extends HohRawServlet {
private static final long serialVersionUID = 1L;
private ApplicationRouter myApplicationRouter;
/**
* Constructor
*/
public HohServlet() {
super.setMessageHandler(new MessageHandlerImpl());
}
/**
* <p>
* Route all messages to a single application
* </p>
* <p>
* This method should not be called if {@link #setApplicationRouter(ApplicationRouter)} has been called
* </p>
*/
public void setApplication(ReceivingApplication theApplication) {
myApplicationRouter = new ApplicationRouterImpl();
myApplicationRouter.bindApplication(new AppRoutingDataImpl("*", "*", "*", "*"), theApplication);
}
/**
* <p>
* Constructor which accepts an ApplicationRouter which may direct different
* types of messages to different applications
* </p>
* <p>
* Does not need to be provided if {@link #setApplication(ReceivingApplication)} has been called.
* </p>
*/
public void setApplicationRouter(ApplicationRouter theApplicationRouter) {
myApplicationRouter = theApplicationRouter;
}
/**
* Must not be called
*/
@Override
public void setMessageHandler(IMessageHandler<String> theMessageHandler) {
throw new UnsupportedOperationException();
}
private class MessageHandlerImpl implements IMessageHandler<String> {
public IResponseSendable<String> messageReceived(IReceivable<String> theMessage) throws MessageProcessingException {
Transportable received = new TransportableImpl(theMessage.getMessage(), new HashMap<String, Object>(theMessage.getMetadata()));
Transportable response;
try {
response = myApplicationRouter.processMessage(received);
} catch (HL7Exception e) {
throw new MessageProcessingException(e);
}
return new RawSendable(response.getMessage());
}
}
}