Github user dsmiley commented on a diff in the pull request:
https://github.com/apache/lucene-solr/pull/410#discussion_r199383124
--- Diff:
solr/core/src/java/org/apache/solr/update/processor/NestedUpdateProcessor.java
---
@@ -0,0 +1,96 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.solr.update.processor;
+
+import java.io.IOException;
+import java.util.Objects;
+
+import org.apache.solr.common.SolrException;
+import org.apache.solr.common.SolrInputDocument;
+import org.apache.solr.common.SolrInputField;
+import org.apache.solr.request.SolrQueryRequest;
+import org.apache.solr.response.SolrQueryResponse;
+import org.apache.solr.schema.IndexSchema;
+import org.apache.solr.update.AddUpdateCommand;
+
+public class NestedUpdateProcessor extends UpdateRequestProcessor {
+ public static final String PATH_SEP_CHAR = "/";
+ private boolean storePath;
+ private boolean storeParent;
+ SolrQueryRequest req;
+
+
+ protected NestedUpdateProcessor(SolrQueryRequest req, SolrQueryResponse
rsp, boolean storeParent, boolean storePath, UpdateRequestProcessor next) {
+ super(next);
+ this.req = req;
+ this.storeParent = storeParent;
+ this.storePath = storePath;
+ }
+
+ @Override
+ public void processAdd(AddUpdateCommand cmd) throws IOException {
+ SolrInputDocument doc = cmd.getSolrInputDocument();
+ String rootId =
doc.getField(req.getSchema().getUniqueKeyField().getName()).getFirstValue().toString();
--- End diff --
I've seen `req.getSchema().getUniqueKeyField().getName()` 3+ times in this
class; lets put it on a field.
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