Internal: auto create index to keep around headers and context of the request that caused it

Closes #7331

src/main/java/org/elasticsearch/action/admin/indices/create/CreateIndexRequest.java

@@ -25,6 +25,7 @@ import org.elasticsearch.ElasticsearchGenerationException;
 import org.elasticsearch.ElasticsearchIllegalArgumentException;
 import org.elasticsearch.ElasticsearchParseException;
 import org.elasticsearch.Version;
+import org.elasticsearch.action.ActionRequest;
 import org.elasticsearch.action.ActionRequestValidationException;
 import org.elasticsearch.action.admin.indices.alias.Alias;
 import org.elasticsearch.action.admin.indices.mapping.put.PutMappingRequest;
@@ -75,6 +76,14 @@ public class CreateIndexRequest extends AcknowledgedRequest<CreateIndexRequest>
     CreateIndexRequest() {
     }
 
+    /**
+     * Constructs a new request to create an index that was triggered by a different request,
+     * provided as an argument so that its headers and context can be copied to the new request.
+     */
+    public CreateIndexRequest(ActionRequest request) {
+        super(request);
+    }
+
     /**
      * Constructs a new request to create an index with the specified name.
      */

src/main/java/org/elasticsearch/action/bulk/TransportBulkAction.java

@@ -120,7 +120,7 @@ public class TransportBulkAction extends HandledTransportAction<BulkRequest, Bul
             ClusterState state = clusterService.state();
             for (final String index : indices) {
                 if (autoCreateIndex.shouldAutoCreate(index, state)) {
-                    createIndexAction.execute(new CreateIndexRequest(index).cause("auto(bulk api)").masterNodeTimeout(bulkRequest.timeout()), new ActionListener<CreateIndexResponse>() {
+                    createIndexAction.execute(new CreateIndexRequest(bulkRequest).index(index).cause("auto(bulk api)").masterNodeTimeout(bulkRequest.timeout()), new ActionListener<CreateIndexResponse>() {
                         @Override
                         public void onResponse(CreateIndexResponse result) {
                             if (counter.decrementAndGet() == 0) {

src/main/java/org/elasticsearch/action/delete/TransportDeleteAction.java

@@ -74,7 +74,7 @@ public class TransportDeleteAction extends TransportShardReplicationOperationAct
     protected void doExecute(final DeleteRequest request, final ActionListener<DeleteResponse> listener) {
         if (autoCreateIndex.shouldAutoCreate(request.index(), clusterService.state())) {
             request.beforeLocalFork();
-            createIndexAction.execute(new CreateIndexRequest(request.index()).cause("auto(delete api)").masterNodeTimeout(request.timeout()), new ActionListener<CreateIndexResponse>() {
+            createIndexAction.execute(new CreateIndexRequest(request).index(request.index()).cause("auto(delete api)").masterNodeTimeout(request.timeout()), new ActionListener<CreateIndexResponse>() {
                 @Override
                 public void onResponse(CreateIndexResponse result) {
                     innerExecute(request, listener);

src/main/java/org/elasticsearch/action/index/TransportIndexAction.java

@@ -83,7 +83,7 @@ public class TransportIndexAction extends TransportShardReplicationOperationActi
         // if we don't have a master, we don't have metadata, that's fine, let it find a master using create index API
         if (autoCreateIndex.shouldAutoCreate(request.index(), clusterService.state())) {
             request.beforeLocalFork(); // we fork on another thread...
-            createIndexAction.execute(new CreateIndexRequest(request.index()).cause("auto(index api)").masterNodeTimeout(request.timeout()), new ActionListener<CreateIndexResponse>() {
+            createIndexAction.execute(new CreateIndexRequest(request).index(request.index()).cause("auto(index api)").masterNodeTimeout(request.timeout()), new ActionListener<CreateIndexResponse>() {
                 @Override
                 public void onResponse(CreateIndexResponse result) {
                     innerExecute(request, listener);

src/main/java/org/elasticsearch/action/support/master/AcknowledgedRequest.java

@@ -18,6 +18,7 @@
  */
 package org.elasticsearch.action.support.master;
 
+import org.elasticsearch.action.ActionRequest;
 import org.elasticsearch.cluster.ack.AckedRequest;
 import org.elasticsearch.common.io.stream.StreamInput;
 import org.elasticsearch.common.io.stream.StreamOutput;
@@ -41,6 +42,10 @@ public abstract class AcknowledgedRequest<T extends MasterNodeOperationRequest>
     protected AcknowledgedRequest() {
     }
 
+    protected AcknowledgedRequest(ActionRequest request) {
+        super(request);
+    }
+
     /**
      * Allows to set the timeout
      * @param timeout timeout as a string (e.g. 1s)

src/main/java/org/elasticsearch/action/support/master/MasterNodeOperationRequest.java

@@ -35,6 +35,14 @@ public abstract class MasterNodeOperationRequest<T extends MasterNodeOperationRe
 
     protected TimeValue masterNodeTimeout = DEFAULT_MASTER_NODE_TIMEOUT;
 
+    protected MasterNodeOperationRequest() {
+
+    }
+
+    protected MasterNodeOperationRequest(ActionRequest request) {
+        super(request);
+    }
+
     /**
      * A timeout value in case the master has not been discovered yet or disconnected.
      */

src/main/java/org/elasticsearch/action/update/TransportUpdateAction.java

@@ -120,7 +120,7 @@ public class TransportUpdateAction extends TransportInstanceSingleOperationActio
         // if we don't have a master, we don't have metadata, that's fine, let it find a master using create index API
         if (autoCreateIndex.shouldAutoCreate(request.index(), clusterService.state())) {
             request.beforeLocalFork(); // we fork on another thread...
-            createIndexAction.execute(new CreateIndexRequest(request.index()).cause("auto(update api)").masterNodeTimeout(request.timeout()), new ActionListener<CreateIndexResponse>() {
+            createIndexAction.execute(new CreateIndexRequest(request).index(request.index()).cause("auto(update api)").masterNodeTimeout(request.timeout()), new ActionListener<CreateIndexResponse>() {
                 @Override
                 public void onResponse(CreateIndexResponse result) {
                     innerExecute(request, listener);