#10242 add get featured collections

src/main/java/edu/harvard/iq/dataverse/api/Dataverses.java

@@ -59,6 +59,7 @@
 import edu.harvard.iq.dataverse.engine.command.impl.ListDataverseContentCommand;
 import edu.harvard.iq.dataverse.engine.command.impl.ListExplicitGroupsCommand;
 import edu.harvard.iq.dataverse.engine.command.impl.ListFacetsCommand;
+import edu.harvard.iq.dataverse.engine.command.impl.ListFeaturedCollectionsCommand;
 import edu.harvard.iq.dataverse.engine.command.impl.ListMetadataBlockFacetsCommand;
 import edu.harvard.iq.dataverse.engine.command.impl.ListMetadataBlocksCommand;
 import edu.harvard.iq.dataverse.engine.command.impl.ListRoleAssignments;
@@ -831,6 +832,31 @@ public Response listFacets(@Context ContainerRequestContext crc, @PathParam("ide
         }
     }
 
+
+    @GET
+    @AuthRequired
+    @Path("{identifier}/featured")
+    /*
+    Allows user to get the collections that are featured by a given collection
+    probably more for SPA than end user
+    */
+    public Response getFeaturedDataverses(@Context ContainerRequestContext crc, @PathParam("identifier") String dvIdtf,  String dvAliases) {
+
+        try {
+            User u = getRequestUser(crc);
+            DataverseRequest r = createDataverseRequest(u);
+            Dataverse dataverse = findDataverseOrDie(dvIdtf);
+            JsonArrayBuilder fs = Json.createArrayBuilder();
+            for (Dataverse f : execCommand(new ListFeaturedCollectionsCommand(r, dataverse))) {
+                fs.add(f.getAlias());
+            }
+            return ok(fs);
+        } catch (WrappedResponse e) {
+            return e.getResponse();
+        }
+    }
+
+
     @POST
     @AuthRequired
     @Path("{identifier}/featured")

src/main/java/edu/harvard/iq/dataverse/engine/command/impl/ListFeaturedCollectionsCommand.java

@@ -0,0 +1,50 @@
+
+package edu.harvard.iq.dataverse.engine.command.impl;
+
+import edu.harvard.iq.dataverse.Dataverse;
+import edu.harvard.iq.dataverse.DataverseFeaturedDataverse;
+import edu.harvard.iq.dataverse.DvObject;
+import edu.harvard.iq.dataverse.authorization.Permission;
+import edu.harvard.iq.dataverse.engine.command.AbstractCommand;
+import edu.harvard.iq.dataverse.engine.command.CommandContext;
+import edu.harvard.iq.dataverse.engine.command.DataverseRequest;
+import edu.harvard.iq.dataverse.engine.command.exception.CommandException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ *
+ * @author stephenkraffmiller
+ */
+public class ListFeaturedCollectionsCommand extends AbstractCommand<List<Dataverse>> {
+
+    private final Dataverse dv;
+
+    public ListFeaturedCollectionsCommand(DataverseRequest aRequest, Dataverse aDataverse) {
+        super(aRequest, aDataverse);
+        dv = aDataverse;
+    }
+
+    @Override
+    public List<Dataverse> execute(CommandContext ctxt) throws CommandException {
+        List<Dataverse> featuredTarget = new ArrayList<>();
+        List<DataverseFeaturedDataverse> featuredList = ctxt.featuredDataverses().findByDataverseId(dv.getId());
+            for (DataverseFeaturedDataverse dfd : featuredList) {
+                Dataverse fd = dfd.getFeaturedDataverse();
+                featuredTarget.add(fd);
+            }
+        return featuredTarget;
+
+    }
+
+    @Override
+    public Map<String, Set<Permission>> getRequiredPermissions() {
+        return Collections.singletonMap("",
+                dv.isReleased() ? Collections.<Permission>emptySet()
+                : Collections.singleton(Permission.ViewUnpublishedDataverse));
+    }
+
+}