Allow all client_id_strategy options and add server_id_strategy (#653)

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

@@ -3,6 +3,7 @@ package ca.uhn.fhir.jpa.starter;
 
 import ca.uhn.fhir.context.FhirVersionEnum;
 import ca.uhn.fhir.jpa.api.config.JpaStorageSettings.ClientIdStrategyEnum;
+import ca.uhn.fhir.jpa.api.config.JpaStorageSettings.IdStrategyEnum;
 import ca.uhn.fhir.jpa.model.entity.NormalizedQuantitySearchLevel;
 import ca.uhn.fhir.jpa.packages.PackageInstallationSpec;
 import ca.uhn.fhir.rest.api.EncodingEnum;
@@ -65,6 +66,7 @@ public class AppProperties {
   private EncodingEnum default_encoding = EncodingEnum.JSON;
   private FhirVersionEnum fhir_version = FhirVersionEnum.R4;
   private ClientIdStrategyEnum client_id_strategy = ClientIdStrategyEnum.ALPHANUMERIC;
+  private IdStrategyEnum server_id_strategy = null;
   private List<String> supported_resource_types = new ArrayList<>();
   private List<Bundle.BundleType> allowed_bundle_types = null;
   private Boolean narrative_enabled = true;
@@ -263,6 +265,14 @@ public Cors getCors() {
     this.client_id_strategy = client_id_strategy;
   }
 
+  public IdStrategyEnum getServer_id_strategy() {
+    return server_id_strategy;
+  }
+
+  public void setServer_id_strategy(IdStrategyEnum server_id_strategy) {
+    this.server_id_strategy = server_id_strategy;
+  }
+
   public boolean getAdvanced_lucene_indexing() {
 		return this.advanced_lucene_indexing;
 	}

src/main/java/ca/uhn/fhir/jpa/starter/common/FhirServerConfigCommon.java

@@ -174,10 +174,27 @@ public class FhirServerConfigCommon {
 		jpaStorageSettings.setDeferIndexingForCodesystemsOfSize(
 				appProperties.getDefer_indexing_for_codesystems_of_size());
 
-		if (appProperties.getClient_id_strategy() == JpaStorageSettings.ClientIdStrategyEnum.ANY) {
-			jpaStorageSettings.setResourceServerIdStrategy(JpaStorageSettings.IdStrategyEnum.UUID);
 		jpaStorageSettings.setResourceClientIdStrategy(appProperties.getClient_id_strategy());
+		ourLog.info("Server configured to use '" + appProperties.getClient_id_strategy() + "' Client ID Strategy");
+
+		// Set and/or recommend default Server ID Strategy of UUID when using the ANY Client ID Strategy
+		if (appProperties.getClient_id_strategy() == JpaStorageSettings.ClientIdStrategyEnum.ANY) {
+			if (appProperties.getServer_id_strategy() == null) {
+				ourLog.info("Defaulting server to use '" + JpaStorageSettings.IdStrategyEnum.UUID
+						+ "' Server ID Strategy when using the '" + JpaStorageSettings.ClientIdStrategyEnum.ANY
+						+ "' Client ID Strategy");
+				appProperties.setServer_id_strategy(JpaStorageSettings.IdStrategyEnum.UUID);
+			} else if (appProperties.getServer_id_strategy() != JpaStorageSettings.IdStrategyEnum.UUID) {
+				ourLog.warn("WARNING: '" + JpaStorageSettings.IdStrategyEnum.UUID
+						+ "' Server ID Strategy is highly recommended when using the '"
+						+ JpaStorageSettings.ClientIdStrategyEnum.ANY + "' Client ID Strategy");
 			}
+		}
+		if (appProperties.getServer_id_strategy() != null) {
+			jpaStorageSettings.setResourceServerIdStrategy(appProperties.getServer_id_strategy());
+			ourLog.info("Server configured to use '" + appProperties.getServer_id_strategy() + "' Server ID Strategy");
+		}
+
 		// Parallel Batch GET execution settings
 		jpaStorageSettings.setBundleBatchPoolSize(appProperties.getBundle_batch_pool_size());
 		jpaStorageSettings.setBundleBatchPoolSize(appProperties.getBundle_batch_pool_max_size());

src/main/resources/application.yaml

@@ -139,6 +139,7 @@ hapi:
     #    etag_support_enabled: true
     #    expunge_enabled: true
     #    client_id_strategy: ALPHANUMERIC
+    #    server_id_strategy: SEQUENTIAL_NUMERIC
     #    fhirpath_interceptor_enabled: false
     #    filter_search_enabled: true
     #    graphql_enabled: true