Fixing InMemoryStore for composite IDs

Author: Aaron Klish

elide-core/src/main/java/com/yahoo/elide/core/EntityDictionary.java

@@ -97,6 +97,7 @@ public class EntityDictionary {
     @Getter
     protected final Injector injector;
 
+    @Getter
     protected final Function<Class, Serde> serdeLookup ;
 
     public final static String REGULAR_ID_NAME = "id";

elide-core/src/main/java/com/yahoo/elide/core/datastore/inmemory/HashMapStoreTransaction.java

@@ -14,6 +14,7 @@
 import com.yahoo.elide.request.EntityProjection;
 import com.yahoo.elide.request.Relationship;
 import com.yahoo.elide.request.Sorting;
+import com.yahoo.elide.utils.coerce.converters.Serde;
 
 import java.io.IOException;
 import java.io.Serializable;
@@ -149,13 +150,17 @@ public Iterable<Object> loadObjects(EntityProjection projection,
     @Override
     public Object loadObject(EntityProjection projection, Serializable id, RequestScope scope) {
 
+        EntityDictionary dictionary = scope.getDictionary();
+
         synchronized (dataStore) {
             Map<String, Object> data = dataStore.get(projection.getType());
             if (data == null) {
                 return null;
             }
-            Object obj = data.get(id.toString());
-            return obj;
+            Serde serde = dictionary.getSerdeLookup().apply(id.getClass());
+
+            String idString = (serde == null) ? id.toString() : (String) serde.serialize(id);
+            return data.get(idString);
         }
     }
 

elide-integration-tests/src/test/java/com/yahoo/elide/tests/EmbeddedIdIT.java

@@ -30,13 +30,14 @@
 import com.yahoo.elide.core.EntityDictionary;
 import com.yahoo.elide.core.HttpStatus;
 import com.yahoo.elide.initialization.GraphQLIntegrationTest;
+import com.yahoo.elide.utils.coerce.CoerceUtil;
 
 import com.google.common.collect.Sets;
 import example.embeddedid.Address;
 import example.embeddedid.AddressSerde;
 import example.embeddedid.Building;
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 
 import lombok.Data;
@@ -45,14 +46,18 @@
 import java.util.Arrays;
 import java.util.HashMap;
 
-@Tag("skipInMemory")
 public class EmbeddedIdIT extends GraphQLIntegrationTest {
 
     protected Address address1 = new Address(0, "Bullion Blvd", 40121);
     protected Address address2 = new Address(1409, "W Green St", 61801);
     protected Address address3 = new Address(1800, "South First Street", 61820);
     protected AddressSerde serde = new AddressSerde();
 
+    @BeforeAll
+    public void beforeAll() {
+        CoerceUtil.register(Address.class, serde);
+    }
+
     @BeforeEach
     public void setup() throws IOException {
         dataStore.populateEntityDictionary(new EntityDictionary(new HashMap<>()));