OZG-6733 refactor buildUsersHref

src/main/java/de/ozgcloud/admin/keycloak/KeyCloakRootProcessor.java

@@ -23,6 +23,8 @@
  */
 package de.ozgcloud.admin.keycloak;
 
+import java.util.Map;
+
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.hateoas.EntityModel;
 import org.springframework.hateoas.Link;
@@ -41,6 +43,10 @@ import lombok.RequiredArgsConstructor;
 @ConditionalOnProperty(prefix = FeatureToggleProperties.FEATURE_TOGGLE_PREFIX, name = "benutzer-rollen", havingValue = "true")
 class KeyCloakRootProcessor implements RepresentationModelProcessor<EntityModel<Root>> {
 
+	private static final String REALM_KEY = "realm";
+	private static final String BASE_URL_KEY = "baseUrl";
+	private static final String KEYCLOAK_API_TEMPLATE = "{baseUrl}/admin/realms/{realm}/users";
+
 	public static final String REL_USERS = "users";
 
 	private final KeycloakApiProperties keycloakApiProperties;
@@ -52,8 +58,8 @@ class KeyCloakRootProcessor implements RepresentationModelProcessor<EntityModel<
 	}
 
 	String buildUsersHref() {
-		return UriComponentsBuilder.fromUriString(keycloakApiProperties.getUrl())
-				.pathSegment("admin", "realms", keycloakApiProperties.getRealm(), "users") // NOSONAR
+		Map<String, Object> pathVariableMap = Map.of(BASE_URL_KEY, keycloakApiProperties.getUrl(), REALM_KEY, keycloakApiProperties.getRealm());
+		return UriComponentsBuilder.fromUriString(KEYCLOAK_API_TEMPLATE).uriVariables(pathVariableMap)
 				.build().toUriString();
 	}
 }