DATAMONGO-1534 - Fix bulk operations missing to write type info.

We now correctly convert entities into their MongoDB representation including type information via _class property.

Original pull request: #415.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultBulkOperations.java

@@ -25,6 +25,7 @@ import org.springframework.data.mongodb.core.query.Update;
 import org.springframework.data.util.Pair;
 import org.springframework.util.Assert;
 
+import com.mongodb.BasicDBObject;
 import com.mongodb.BulkWriteException;
 import com.mongodb.BulkWriteOperation;
 import com.mongodb.BulkWriteRequestBuilder;
@@ -38,6 +39,7 @@ import com.mongodb.WriteConcern;
  * 
  * @author Tobias Trelle
  * @author Oliver Gierke
+ * @author Christoph Strobl
  * @since 1.9
  */
 class DefaultBulkOperations implements BulkOperations {
@@ -117,7 +119,15 @@ class DefaultBulkOperations implements BulkOperations {
 
 		Assert.notNull(document, "Document must not be null!");
 
-		bulk.insert((DBObject) mongoOperations.getConverter().convertToMongoType(document));
+		if (document instanceof DBObject) {
+
+			bulk.insert((DBObject) document);
+			return this;
+		}
+
+		DBObject sink = new BasicDBObject();
+		mongoOperations.getConverter().write(document, sink);
+		bulk.insert(sink);
 		return this;
 	}
 

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/DefaultBulkOperationsIntegrationTests.java

@@ -46,6 +46,7 @@ import com.mongodb.WriteConcern;
  * 
  * @author Tobias Trelle
  * @author Oliver Gierke
+ * @author Christoph Strobl
  */
 @RunWith(SpringJUnit4ClassRunner.class)
 @ContextConfiguration("classpath:infrastructure.xml")
@@ -270,6 +271,25 @@ public class DefaultBulkOperationsIntegrationTests {
 		assertThat(result.getRemovedCount(), is(1));
 	}
 
+	/**
+	 * @see DATAMONGO-1534
+	 */
+	@Test
+	public void insertShouldConsiderInheritance() {
+
+		SpecialDoc specialDoc = new SpecialDoc();
+		specialDoc.id = "id-special";
+		specialDoc.value = "normal-value";
+		specialDoc.specialValue = "special-value";
+
+		createBulkOps(BulkMode.ORDERED).insert(Arrays.asList(specialDoc)).execute();
+
+		BaseDoc doc = operations.findOne(where("_id", specialDoc.id), BaseDoc.class, COLLECTION_NAME);
+
+		assertThat(doc, notNullValue());
+		assertThat(doc, instanceOf(SpecialDoc.class));
+	}
+
 	private void testUpdate(BulkMode mode, boolean multi, int expectedUpdates) {
 
 		BulkOperations bulkOps = createBulkOps(mode);