[reindex] Add ingest support

modules/reindex/src/main/java/org/elasticsearch/index/reindex/RestReindexAction.java

@@ -60,8 +60,8 @@ public class RestReindexAction extends AbstractBaseReindexRestHandler<ReindexReq
     static {
         ObjectParser.Parser<SearchRequest, ReindexParseContext> sourceParser = (parser, search, context) -> {
             /*
-             * Extract the parameters that we need from the parser. We could do
-             * away with this hack when search source has an ObjectParser.
+             * Extract the parameters that we need from the source sent to the parser. We could do away with this hack when search source
+             * has an ObjectParser.
              */
             Map<String, Object> source = parser.map();
             String[] indices = extractStringArray(source, "index");
@@ -84,6 +84,7 @@ public class RestReindexAction extends AbstractBaseReindexRestHandler<ReindexReq
         destParser.declareString(IndexRequest::type, new ParseField("type"));
         destParser.declareString(IndexRequest::routing, new ParseField("routing"));
         destParser.declareString(IndexRequest::opType, new ParseField("opType"));
+        destParser.declareString(IndexRequest::setPipeline, new ParseField("pipeline"));
         destParser.declareString((s, i) -> s.versionType(VersionType.fromString(i)), new ParseField("versionType"));
 
         // These exist just so the user can get a nice validation error:

modules/reindex/src/main/java/org/elasticsearch/index/reindex/RestUpdateByQueryAction.java

@@ -105,8 +105,10 @@ public class RestUpdateByQueryAction extends
         parseCommon(internalRequest, request);
 
         internalRequest.setSize(internalRequest.getSearchRequest().source().size());
+        internalRequest.setPipeline(request.param("pipeline"));
         internalRequest.getSearchRequest().source().size(request.paramAsInt("scroll_size", scrollSize));
 
+
         execute(request, internalRequest, channel);
     }
 }

modules/reindex/src/main/java/org/elasticsearch/index/reindex/TransportReindexAction.java

@@ -158,6 +158,7 @@ public class TransportReindexAction extends HandledTransportAction<ReindexReques
             index.timestamp(mainRequest.getDestination().timestamp());
             index.ttl(mainRequest.getDestination().ttl());
             index.contentType(mainRequest.getDestination().getContentType());
+            index.setPipeline(mainRequest.getDestination().getPipeline());
             // OpType is synthesized from version so it is handled when we copy version above.
 
             return index;

modules/reindex/src/main/java/org/elasticsearch/index/reindex/TransportUpdateByQueryAction.java

@@ -90,6 +90,7 @@ public class TransportUpdateByQueryAction extends HandledTransportAction<UpdateB
             index.source(doc.sourceRef());
             index.versionType(VersionType.INTERNAL);
             index.version(doc.version());
+            index.setPipeline(mainRequest.getPipeline());
             return index;
         }
 

modules/reindex/src/main/java/org/elasticsearch/index/reindex/UpdateByQueryRequest.java

@@ -26,6 +26,11 @@ import org.elasticsearch.action.search.SearchRequest;
  * locations or IDs.
  */
 public class UpdateByQueryRequest extends AbstractBulkIndexByScrollRequest<UpdateByQueryRequest> {
+    /**
+     * Ingest pipeline to set on index requests made by this action.
+     */
+    private String pipeline;
+
     public UpdateByQueryRequest() {
     }
 
@@ -33,6 +38,20 @@ public class UpdateByQueryRequest extends AbstractBulkIndexByScrollRequest<Updat
         super(search);
     }
 
+    /**
+     * Set the ingest pipeline to set on index requests made by this action.
+     */
+    public void setPipeline(String pipeline) {
+        this.pipeline = pipeline;
+    }
+
+    /**
+     * Ingest pipeline to set on index requests made by this action.
+     */
+    public String getPipeline() {
+        return pipeline;
+    }
+
     @Override
     protected UpdateByQueryRequest self() {
         return this;

modules/reindex/src/test/resources/rest-api-spec/test/reindex/70_with_ingest.yaml

@@ -0,0 +1,46 @@
+---
+"Modify a document":
+  - do:
+      ingest.put_pipeline:
+        id: "test_ingest"
+        body:  >
+          {
+            "description": "tests reindex with ingest",
+            "processors": [
+              {
+                "append" : {
+                  "field" : "new_field",
+                  "value": "cat"
+                }
+              }
+            ]
+          }
+  - do:
+      index:
+        index:  twitter
+        type:   tweet
+        id:     1
+        body:   { "user": "kimchy" }
+  - do:
+      indices.refresh: {}
+
+  - do:
+      reindex:
+        refresh: true
+        body:
+          source:
+            index: twitter
+          dest:
+            index: new_twitter
+            pipeline: test_ingest
+  - match: {created: 1}
+  - match: {noops: 0}
+
+  - do:
+      search:
+        index: new_twitter
+        body:
+          query:
+            match:
+              new_field: cat
+  - match: { hits.total: 1 }

modules/reindex/src/test/resources/rest-api-spec/test/update-by-query/60_with_ingest.yaml

@@ -0,0 +1,42 @@
+---
+"Update a document using update-by-query":
+  - do:
+      ingest.put_pipeline:
+        id: "test_ingest"
+        body:  >
+          {
+            "description": "tests reindex with ingest",
+            "processors": [
+              {
+                "append" : {
+                  "field" : "new_field",
+                  "value": "cat"
+                }
+              }
+            ]
+          }
+  - do:
+      index:
+        index:  twitter
+        type:   tweet
+        id:     1
+        body:   { "user": "kimchy" }
+  - do:
+      indices.refresh: {}
+
+  - do:
+      update-by-query:
+        index:   twitter
+        refresh: true
+        pipeline: test_ingest
+  - match: {updated: 1}
+  - match: {noops: 0}
+
+  - do:
+      search:
+        index: twitter
+        body:
+          query:
+            match:
+              new_field: cat
+  - match: { hits.total: 1 }

rest-api-spec/src/main/resources/rest-api-spec/api/update-by-query.json

@@ -80,6 +80,10 @@
           "type" : "boolean",
           "description" : "Specify whether query terms should be lowercased"
         },
+        "pipeline": {
+          "type" : "string",
+          "description" : "Ingest pipeline to set on index requests made by this action. (default: none)"
+        },
         "preference": {
           "type" : "string",
           "description" : "Specify the node or shard the operation should be performed on (default: random)"