Make bulk item-level requests implement DocumentRequest interface

Currently, bulk item requests can be any ActionRequest, this commit
restricts bulk item requests to DocumentRequest. This simplifies
handling failures during bulk requests. Additionally, a new enum
is added to DocumentRequest to represent the intended operation
to be performed by a document request. Now, index operation type
also uses the new enum to specify whether the request should
create or index a document.

1 files changed, 1 insertions, 1 deletions

diff --git a/core/src/main/java/org/elasticsearch/rest/action/document/RestIndexAction.java b/core/src/main/java/org/elasticsearch/rest/action/document/RestIndexAction.java
index 6c9723b5b9..f28a98f488 100644
--- a/core/src/main/java/org/elasticsearch/rest/action/document/RestIndexAction.java
+++ b/core/src/main/java/org/elasticsearch/rest/action/document/RestIndexAction.java
@@ -86,7 +86,7 @@ public class RestIndexAction extends BaseRestHandler {
         String sOpType = request.param("op_type");
         if (sOpType != null) {
             try {
-                indexRequest.opType(IndexRequest.OpType.fromString(sOpType));
+                indexRequest.opType(sOpType);
             } catch (IllegalArgumentException eia){
                 try {
                     XContentBuilder builder = channel.newErrorBuilder();