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Add support for websocket subscriptions

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This commit is contained in:
James Agnew
2019-03-14 17:34:15 -04:00
parent 4c419ec5d6
commit 18ead60ef0
11 changed files with 301 additions and 86 deletions
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42
src/main/java/ca/uhn/fhir/jpa/starter/JpaRestfulServer.java
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@@ -4,6 +4,7 @@ import ca.uhn.fhir.context.FhirContext;
import ca.uhn.fhir.context.FhirVersionEnum;
import ca.uhn.fhir.jpa.dao.DaoConfig;
import ca.uhn.fhir.jpa.dao.IFhirSystemDao;
import ca.uhn.fhir.jpa.model.interceptor.api.IInterceptorRegistry;
import ca.uhn.fhir.jpa.provider.JpaConformanceProviderDstu2;
import ca.uhn.fhir.jpa.provider.JpaSystemProviderDstu2;
import ca.uhn.fhir.jpa.provider.SubscriptionTriggeringProvider;
@@ -14,6 +15,8 @@ import ca.uhn.fhir.jpa.provider.r4.JpaConformanceProviderR4;
import ca.uhn.fhir.jpa.provider.r4.JpaSystemProviderR4;
import ca.uhn.fhir.jpa.provider.r4.TerminologyUploaderProviderR4;
import ca.uhn.fhir.jpa.search.DatabaseBackedPagingProvider;
import ca.uhn.fhir.jpa.subscription.SubscriptionActivatingInterceptor;
import ca.uhn.fhir.jpa.subscription.SubscriptionMatcherInterceptor;
import ca.uhn.fhir.model.dstu2.composite.MetaDt;
import ca.uhn.fhir.narrative.DefaultThymeleafNarrativeGenerator;
import ca.uhn.fhir.rest.server.HardcodedServerAddressStrategy;
@@ -22,7 +25,7 @@ import ca.uhn.fhir.rest.server.RestfulServer;
import ca.uhn.fhir.rest.server.interceptor.ResponseHighlighterInterceptor;
import org.hl7.fhir.dstu3.model.Bundle;
import org.hl7.fhir.dstu3.model.Meta;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.ApplicationContext;
import javax.servlet.ServletException;
import java.util.List;
@@ -30,12 +33,6 @@ import java.util.List;
public class JpaRestfulServer extends RestfulServer {
private static final long serialVersionUID = 1L;
private AnnotationConfigApplicationContext appCtx;
@Override
public void destroy() {
appCtx.close();
}
@SuppressWarnings("unchecked")
@Override
@@ -46,27 +43,25 @@ public class JpaRestfulServer extends RestfulServer {
* Create a FhirContext object that uses the version of FHIR
* specified in the properties file.
*/
FhirVersionEnum fhirVersion = HapiProperties.getFhirVersion();
appCtx = new AnnotationConfigApplicationContext();
ApplicationContext appCtx = (ApplicationContext) getServletContext().getAttribute("org.springframework.web.context.WebApplicationContext.ROOT");
// if (HapiProperties.getSubscriptionWebsocketEnabled()) {
// appCtx.register(WebsocketDispatcherConfig.class);
// }
/*
* ResourceProviders are fetched from the Spring context
*/
FhirVersionEnum fhirVersion = HapiProperties.getFhirVersion();
List<IResourceProvider> resourceProviders;
Object systemProvider;
if (fhirVersion == FhirVersionEnum.DSTU2) {
appCtx.register(FhirServerConfigDstu2.class, FhirServerConfigCommon.class);
appCtx.refresh();
resourceProviders = appCtx.getBean("myResourceProvidersDstu2", List.class);
systemProvider = appCtx.getBean("mySystemProviderDstu2", JpaSystemProviderDstu2.class);
} else if (fhirVersion == FhirVersionEnum.DSTU3) {
appCtx.register(FhirServerConfigDstu3.class, FhirServerConfigCommon.class);
appCtx.refresh();
resourceProviders = appCtx.getBean("myResourceProvidersDstu3", List.class);
systemProvider = appCtx.getBean("mySystemProviderDstu3", JpaSystemProviderDstu3.class);
} else if (fhirVersion == FhirVersionEnum.R4) {
appCtx.register(FhirServerConfigR4.class, FhirServerConfigCommon.class);
appCtx.refresh();
resourceProviders = appCtx.getBean("myResourceProvidersR4", List.class);
systemProvider = appCtx.getBean("mySystemProviderR4", JpaSystemProviderR4.class);
} else {
@@ -174,6 +169,23 @@ public class JpaRestfulServer extends RestfulServer {
SubscriptionTriggeringProvider retriggeringProvider = appCtx.getBean(SubscriptionTriggeringProvider.class);
registerProvider(retriggeringProvider);
}
// If subscriptions are enabled, we want to register the interceptor that
// will activate them and match results against them
if (HapiProperties.getSubscriptionWebsocketEnabled() ||
HapiProperties.getSubscriptionEmailEnabled() ||
HapiProperties.getSubscriptionRestHookEnabled()) {
IInterceptorRegistry interceptorRegistry = appCtx.getBean(IInterceptorRegistry.class);
SubscriptionActivatingInterceptor subscriptionActivatingInterceptor = appCtx.getBean(SubscriptionActivatingInterceptor.class);
interceptorRegistry.registerInterceptor(subscriptionActivatingInterceptor);
SubscriptionMatcherInterceptor subscriptionMatcherInterceptor = appCtx.getBean(SubscriptionMatcherInterceptor.class);
subscriptionMatcherInterceptor.start();
interceptorRegistry.registerInterceptor(subscriptionMatcherInterceptor);
}
}
}