I am coding a server application that will receive DFT_P03 messages with an added ZPM segment (which i have created a class for as per the HAPI documentation). Currently i am able to access this field as a generic segment when doing the following :
#Override
public Message processMessage(Message t, Map map) throws ReceivingApplicationException, HL7Exception
{
String encodedMessage = new DefaultHapiContext().getPipeParser().encode(t);
logEntryService.logDebug(LogEntry.CONNECTIVITY, "Received message:\n" + encodedMessage + "\n\n");
try
{
InboundMessage inboundMessage = new InboundMessage();
inboundMessage.setMessageTime(new Date());
inboundMessage.setMessageType("Usage");
DFT_P03 usageMessage = (DFT_P03) t;
Segment ZPMSegment = (Segment)usageMessage.get("ZPM");
inboundMessage.setMessage(usageMessage.toString());
Facility facility = facilityService.findByCode(usageMessage.getMSH().getReceivingFacility().getNamespaceID().getValue());
inboundMessage.setTargetFacility(facility);
String controlID = usageMessage.getMSH().getMessageControlID().encode();
controlID = controlID.substring(controlID.indexOf("^") + 1, controlID.length());
inboundMessage.setControlId(controlID);
Message response;
try
{
inboundMessageService.save(inboundMessage);
response = t.generateACK();
logEntryService.logDebug(LogEntry.CONNECTIVITY, "Message ACKed");
}
catch (Exception ex)
{
response = t.generateACK(AcknowledgmentCode.AE, new HL7Exception(ex));
logEntryService.logDebug(LogEntry.CONNECTIVITY, "Message NACKed");
}
return response;
}
catch (IOException e)
{
logEntryService.logDebug(LogEntry.CONNECTIVITY, "Message rejected");
throw new HL7Exception(e);
}
}
I have created a DFT_P03_Custom class as following :
public class DFT_P03_Custom extends DFT_P03
{
public DFT_P03_Custom() throws HL7Exception
{
this(new DefaultModelClassFactory());
}
public DFT_P03_Custom(ModelClassFactory factory) throws HL7Exception
{
super(factory);
String[] segmentNames = getNames();
int indexOfPid = Arrays.asList(segmentNames).indexOf("FT1");
int index = indexOfPid + 1;
Class<ZPM> type = ZPM.class;
boolean required = true;
boolean repeating = false;
this.add(type, required, repeating, index);
}
public ZPM getZPM()
{
return getTyped("ZPM", ZPM.class);
}
}
When trying to typecast the message to a DFT_P03_Custom instance i get a ClassCastException. As per their documentation, i did create the CustomModelClassFactory class but using this i just get tons of validation errors on the controlId field.
I am already using an identical logic to send custom MFN_M01 messages with an added ZFX segment and that works flawlessly. I understand there is some automatic typecasting being done by HAPI when it receives a DFT_P03 message and that is likely what i need to somehow override for it to be able to give me a DFT_P03_Custom instance instead.
If you have some insight on how i can achieve this without having to use a generic segment instance please help!
Thank you!
I finally figured this out. The only way i got this to work was to generate a conformance profile XML file (using an example message from our application as a base) with the messaging workbench on the HAPI site and use the maven plugin to generate the message and segment classes. Only with these classes am i able to correctly parse a message to my custom class. One thing to note is that it DOES NOT work if i try to use the MSH, PID, PV1 or FT1 classes provided by HAPI and use my Z-segment class. It only works if all the segments are the classes generated by the conformance plugin. This combined with a CustomModelClassFactory class (as shown on the HAPI website) and the proper package structure finally allowed me to access my Z-segment.
Related
I was basing my program off of the samples on hapishir's website and the operation works in that I receive the JSON body and I'm updating the database. The issue I have though is that there is no response being returned. I build the MethodOutcome object, and "return" it, but nothing appears in postman. I've written #read and #Search operations also and those both return the resource in the response on Postmat, but this #Create doesn't return any response.
ObservationResourceProvider.java
public class ObservationResourceProvider implements IResourceProvider {
public ObservationResourceProvider() { }
#Override
public Class<? extends IBaseResource> getResourceType() {
return Observation.class;
}
#Create()
public MethodOutcome createObservation(#ResourceParam Observation observation){
OpenERMDatabase db = new OpenERMDatabase();
String newObservationId = db.addNewObservation(observation);
//return the new Id if success else return an error message
MethodOutcome retVal = new MethodOutcome();
if (newObservationId != null) {
retVal.setId(new IdType("Observation", newObservationId, "1.0"));
retVal.setCreated(true);
}else {
OperationOutcome outcome = new OperationOutcome();
outcome.addIssue().setDiagnostics("An Error Occurred");
retVal.setOperationOutcome(outcome);
retVal.setCreated(false);
}
return retVal;
}
}
SimpleRestfulServer.java
#WebServlet("/*")
public class SimpleRestfulServer extends RestfulServer{
//Initialize
#Override
protected void initialize()throws ServletException{
//create a context for the appropriate version
setFhirContext(FhirContext.forDstu3());
//Register Resource Providers
registerProvider(new PatientResourceProvider());
registerProvider(new ObservationResourceProvider());
}
}
I've built an environment and debugged the server side code.
I'm sure you will get some hint from this. There are three modes defined in PreferReturnEnum, when you specify an extra header in the HEADERS with key as "Prefer" and value as " return=OperationOutcome", the value defined in operationOutcome will be retured.
I'm newbie to Apache Camel. In hp nonstop there is a Receiver that receives events generated by event manager assume like a stream. My goal is to setup a consumer end point which receives the incoming message and process it through Camel.
Another end point I simply need to write it in logs. From my study I understood that for Consumer end point I need to create own component and configuration would be like
from("myComp:receive").to("log:net.javaforge.blog.camel?level=INFO")
Here is my code snippet which receives message from event system.
Receive receive = com.tandem.ext.guardian.Receive.getInstance();
byte[] maxMsg = new byte[500]; // holds largest possible request
short errorReturn = 0;
do { // read messages from $receive until last close
try {
countRead = receive.read(maxMsg, maxMsg.length);
String receivedMessage=new String(maxMsg, "UTF-8");
//Here I need to handover receivedMessage to camel
} catch (ReceiveNoOpeners ex) {
moreOpeners = false;
} catch(Exception e) {
moreOpeners = false;
}
} while (moreOpeners);
Can someone guide with some hints how to make this as a Consumer.
The 10'000 feet view is this:
You need to start out with implementing a component. The easiest way to get started is to extend org.apache.camel.impl.DefaultComponent. The only thing you have to do is override DefaultComponent::createEndpoint(..). Quite obviously what it does is create your endpoint.
So the next thing you need is to implement your endpoint. Extend org.apache.camel.impl.DefaultEndpoint for this. Override at the minimum DefaultEndpoint::createConsumer(Processor) to create your own consumer.
Last but not least you need to implement the consumer. Again, best ist to extend org.apache.camel.impl.DefaultConsumer. The consumer is where your code has to go that generates your messages. Through the constructor you receive a reference to your endpoint. Use the endpoint reference to create a new Exchange, populate it and send it on its way along the route. Something along the lines of
Exchange ex = endpoint.createExchange(ExchangePattern.InOnly);
setMyMessageHeaders(ex.getIn(), myMessagemetaData);
setMyMessageBody(ex.getIn(), myMessage);
getAsyncProcessor().process(ex, new AsyncCallback() {
#Override
public void done(boolean doneSync) {
LOG.debug("Mssage was processed " + (doneSync ? "synchronously" : "asynchronously"));
}
});
I recommend you pick a simple component (DirectComponent ?) as an example to follow.
Herewith adding my own consumer component may help someone.
public class MessageConsumer extends DefaultConsumer {
private final MessageEndpoint endpoint;
private boolean moreOpeners = true;
public MessageConsumer(MessageEndpoint endpoint, Processor processor) {
super(endpoint, processor);
this.endpoint = endpoint;
}
#Override
protected void doStart() throws Exception {
int countRead=0; // number of bytes read
do {
countRead++;
String msg = String.valueOf(countRead)+" "+System.currentTimeMillis();
Exchange ex = endpoint.createExchange(ExchangePattern.InOnly);
ex.getIn().setBody(msg);
getAsyncProcessor().process(ex, new AsyncCallback() {
#Override
public void done(boolean doneSync) {
log.info("Mssage was processed " + (doneSync ? "synchronously" : "asynchronously"));
}
});
// This is an echo server so echo request back to requester
} while (moreOpeners);
}
#Override
protected void doStop() throws Exception {
moreOpeners = false;
log.debug("Message processor is shutdown");
}
}
I have web client (HTML5) and backend server based on RESTEasy webservices and session beans. In my server side code I am iterating over list of objects and per object i am executing some business logic:
List<TestTO> failedTestList = new ArrayList<TestTO>();
for (TestTO testTO : testTOList) {
try {
// some weired business logic :P
} catch (Exception e) {
logger.error("Unable to create data -" + e.getMessage());
failedTestList.add(testTO);
}
}
if (!failedTestList.isEmpty()) {
// throw custom exception embedded with failed TO list
}
I have written custome exception handlers, to catch exceptions and return proper response back to client. This class looks like:
public class CustomExceptionHandler implements ExceptionMapper<CustomException> {
public CustomException getCustomErrorCode(final CustomException customException) {
// Some logic to get cause and set error code
return customException;
}
#Override
public Response toResponse(final CustomException customException) {
return Response.serverError().entity(
"{\"Error Code\":\"" + getCustomErrorCode(customException).getErrorCode() + "\", "
+ "\"Error Message\":\"" + customException.getLocalizedMessage() + "\"}").build();
}
}
I am thinking of an option to send this failed TO list back to client, so that it can understand processing of which objects got failed. I was going through different articles, but could not find anything which fits my requirement.
Please give me an idea and link to reference, on how to implement such requirement. Please note that, my client expects response in JSON format. Please let me know, if you require more information.
Thanks.
Where can I find Jira issue type values that we pass to IssueBuilder class constructor?
For ex: If i want to create a issue type of bug using jira rest api , We pass value '1L' to Issue Builder class constructor.
IssueInputBuilder issueBuilder = new IssueInputBuilder("Key", 1l);
Similarly what are the values of other jira issue types ?.. Anybody know the values we need to pass ?
If you are using later Jira REST Java Client API (e.g. 4.0), the interface has been changed. You must use following code to browsing all issue types:
private static final String JIRA_SERVER = "http://jiralab";
public static void main(String[] args) {
try {
JiraRestClientFactory factory = new AsynchronousJiraRestClientFactory();
URI uri = new URI(JIRA_SERVER);
JiraRestClient client = factory.createWithBasicHttpAuthentication(uri, "admin", "admin");
listAllIssueTypes(client);
}
catch (Exception ex) {
}
}
private static void listAllIssueTypes(JiraRestClient client) throws Exception {
Promise<Iterable<IssueType>> promise = client.getMetadataClient().getIssueTypes();
Iterable<IssueType> issueTypes = promise.claim();
for (IssueType it : issueTypes) {
System.out.println("Type ID = " + it.getId() + ", Name = " + it.getName());
}
}
If you want to get a list of all available issuetypes, you can use the REST API (/rest/api/2/issuetype). To try that on your JIRA instance, I like to recommend the Atlassian REST API Browser.
Or just look here: Finding the Id for Issue Types
In Java you can get a list of all issuetype object using getAllIssueTypeObjects().
I'm trying to use BlazeDS's AMFConnection class to connect to pyamf, but when I call AMFConnection.call(), I get HTTP status 400 (Bad Request - "The request body was unable to be successfully decoded."). I'm more or less following this example: (pyamf.org/wiki/ClientHowTo ... sorry, I'm a new user so I guess I can't use hyperlinks. append a "http://" to those if you want to follow them)
Here's my code:
package amfconnectiontest;
import flex.messaging.io.amf.client.AMFConnection;
import flex.messaging.io.amf.client.exceptions.*;
public class Main {
public static void main(String[] args) {
AMFConnection amfConnection = new AMFConnection();
String url = "http://demo.pyamf.org/gateway/recordset";
String service = "service.getLanguages";
try
{
amfConnection.connect(url);
}
catch (ClientStatusException cse)
{
System.out.println(cse);
return;
}
// Make a remoting call and retrieve the result.
try
{
Object result = amfConnection.call(service);
System.out.println("results: " + result.toString());
}
catch (ClientStatusException cse)
{
System.out.println(cse);
}
catch (ServerStatusException sse)
{
System.out.println(sse);
}
// Close the connection.
amfConnection.close();
}
}
Any ideas?
The ability to en/decode BlazeDS specific messages (implementing ISmallMessage) has landed on the PyAMF trunk (r2726 and up). See the related ticket - http://pyamf.org/ticket/581
This version or one very similar is likely to become 0.5. If you need to connect to a BlazeDS service I would suggest checking out the trunk.