SHIBUI-645: Controller implementation

backend/src/main/java/edu/internet2/tier/shibboleth/admin/ui/controller/MetadataResolversPositionOrderController.java

@@ -5,6 +5,7 @@
 import edu.internet2.tier.shibboleth.admin.ui.service.MetadataResolversPositionOrderContainerService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -22,7 +23,12 @@ public class MetadataResolversPositionOrderController {
 
     @PostMapping
     public ResponseEntity<?> createOrUpdate(@RequestBody MetadataResolversPositionOrderContainer metadataResolversPositionOrderContainer) {
-        this.positionOrderContainerService.addOrUpdatePositionOrderContainer(metadataResolversPositionOrderContainer);
+        positionOrderContainerService.addOrUpdatePositionOrderContainer(metadataResolversPositionOrderContainer);
         return ResponseEntity.noContent().build();
     }
+
+    @GetMapping
+    public ResponseEntity<?> getPositionOrderContainer() {
+        return ResponseEntity.ok(positionOrderContainerService.retrieveExistingOrEmpty());
+    }
 }

backend/src/main/java/edu/internet2/tier/shibboleth/admin/ui/domain/resolvers/MetadataResolversPositionOrderContainer.java

@@ -1,6 +1,6 @@
 package edu.internet2.tier.shibboleth.admin.ui.domain.resolvers;
 
-import edu.internet2.tier.shibboleth.admin.ui.domain.AbstractAuditable;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -11,6 +11,9 @@
 import javax.persistence.Column;
 import javax.persistence.ElementCollection;
 import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
 import javax.persistence.JoinColumn;
 import javax.persistence.OrderColumn;
 import java.util.ArrayList;
@@ -27,12 +30,17 @@
  * @author Dmitriy Kopylenko
  */
 @Entity
-@EqualsAndHashCode(callSuper = true)
+@EqualsAndHashCode
 @NoArgsConstructor
 @Getter
 @Setter
 @ToString
-public class MetadataResolversPositionOrderContainer extends AbstractAuditable {
+public class MetadataResolversPositionOrderContainer {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.SEQUENCE)
+    @JsonIgnore
+    protected Long id;
 
     @ElementCollection
     @CollectionTable(name="METADATA_RESOLVER_POSITION_ORDER", joinColumns=@JoinColumn(name="METADATA_RESOLVER_POSITION_ORDER_CONTAINER_ID"))

backend/src/main/java/edu/internet2/tier/shibboleth/admin/ui/service/DefaultMetadataResolversPositionOrderContainerService.java

@@ -57,6 +57,11 @@ public List<MetadataResolver> getAllMetadataResolversInDefinedOrderOrUnordered()
         return from(metadataResolverRepository.findAll()).toList();
     }
 
+    @Override
+    public MetadataResolversPositionOrderContainer retrieveExistingOrEmpty() {
+        return getPositionOrderContainerIfExists().orElseGet(MetadataResolversPositionOrderContainer::new);
+    }
+
     private Optional<MetadataResolversPositionOrderContainer> getPositionOrderContainerIfExists() {
         Iterator<MetadataResolversPositionOrderContainer> iter = positionOrderContainerRepository.findAll().iterator();
         return iter.hasNext() ? Optional.of(iter.next()) : Optional.empty();

backend/src/main/java/edu/internet2/tier/shibboleth/admin/ui/service/MetadataResolversPositionOrderContainerService.java

@@ -13,6 +13,8 @@
  */
 public interface MetadataResolversPositionOrderContainerService {
 
+    MetadataResolversPositionOrderContainer retrieveExistingOrEmpty();
+
     void addOrUpdatePositionOrderContainer(MetadataResolversPositionOrderContainer metadataResolversPositionOrderContainer);
 
     List<MetadataResolver> getAllMetadataResolversInDefinedOrderOrUnordered();