Feature/static files (#456)

* Added mapping

* Added documentation

src/main/java/ca/uhn/fhir/jpa/starter/AppProperties.java

@@ -72,6 +72,8 @@ public class AppProperties {
   private Boolean install_transitive_ig_dependencies = true;
   private Map<String, ImplementationGuide> implementationGuides = null;
 
+	private String staticLocation = null;
+
   private Boolean lastn_enabled = false;
   private boolean store_resource_in_lucene_index_enabled = false;
   private NormalizedQuantitySearchLevel normalized_quantity_search_level = NormalizedQuantitySearchLevel.NORMALIZED_QUANTITY_SEARCH_NOT_SUPPORTED;
@@ -89,6 +91,16 @@ public class AppProperties {
     return custom_interceptor_classes;
   }
 
+
+	public String getStaticLocation() {
+		return staticLocation;
+	}
+
+	public void setStaticLocation(String staticLocation) {
+		this.staticLocation = staticLocation;
+	}
+
+
 	public Boolean getOpenapi_enabled() {
 		return openapi_enabled;
 	}

src/main/java/ca/uhn/fhir/jpa/starter/ExtraStaticFilesConfigurer.java

@@ -0,0 +1,22 @@
+package ca.uhn.fhir.jpa.starter;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+@ConditionalOnProperty(prefix = "hapi.fhir", name = "staticLocation")
+public class ExtraStaticFilesConfigurer implements WebMvcConfigurer {
+
+	@Autowired
+	AppProperties appProperties;
+
+	@Override
+	public void addResourceHandlers(ResourceHandlerRegistry theRegistry) {
+		theRegistry
+			.addResourceHandler("/static/**")
+		.addResourceLocations(appProperties.getStaticLocation());
+	}
+}

src/main/resources/application.yaml

@@ -52,6 +52,7 @@ spring:
 #      hibernate.search.backend.analysis.configurer: ca.uhn.fhir.jpa.search.HapiHSearchAnalysisConfigurers$HapiElasticAnalysisConfigurer
 hapi:
   fhir:
+
     ### This enables the swagger-ui at /fhir/swagger-ui/index.html as well as the /fhir/api-docs (see https://hapifhir.io/hapi-fhir/docs/server_plain/openapi.html)
     openapi_enabled: true
     ### This is the FHIR version. Choose between, DSTU2, DSTU3, R4 or R5
@@ -62,6 +63,8 @@ hapi:
     ### forces the use of the https:// protocol for the returned server address.
     ### alternatively, it may be set using the X-Forwarded-Proto header.
     #   use_apache_address_strategy_https: false
+    ### enables the server to host content like HTML, css, etc. under the url pattern of /static/**
+    # staticLocation: file:/usr/somewhere/
     ### enable to set the Server URL
     #    server_address: http://hapi.fhir.org/baseR4
     #    defer_indexing_for_codesystems_of_size: 101