Github user dsmiley commented on a diff in the pull request: https://github.com/apache/lucene-solr/pull/410#discussion_r197857625 --- Diff: solr/core/src/java/org/apache/solr/update/processor/DeeplyNestedUpdateProcessor.java --- @@ -0,0 +1,101 @@ +/* + * 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.Collection; +import java.util.EnumSet; +import java.util.Locale; +import java.util.Objects; + +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; +import static org.apache.solr.update.processor.DeeplyNestedUpdateProcessorFactory.NestedFlag; + +public class DeeplyNestedUpdateProcessor extends UpdateRequestProcessor { + private EnumSet<NestedFlag> fields; + SolrQueryRequest req; + + + protected DeeplyNestedUpdateProcessor(SolrQueryRequest req, SolrQueryResponse rsp, EnumSet<NestedFlag> fields, UpdateRequestProcessor next) { + super(next); + this.req = req; + this.fields = fields; + } + + @Override + public void processAdd(AddUpdateCommand cmd) throws IOException { + SolrInputDocument doc = cmd.getSolrInputDocument(); + processDocChildren(doc, null); + super.processAdd(cmd); + } + + private void processDocChildren(SolrInputDocument doc, String fullPath) { + for(SolrInputField field: doc.values()) { + if(field.getFirstValue() instanceof SolrInputDocument) { + Object val = field.getValue(); + fullPath = Objects.isNull(fullPath) ? field.getName(): String.format(Locale.ROOT,"%s.%s", fullPath, field.getName()); + if (val instanceof Collection) { --- End diff -- SolrInputField is directly Iterable over its values, so you needn't call getValue and check its type.
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