solr/solrj/src/test/org/apache/solr/client/solrj/embedded/SolrExampleStreamingBinaryTest.java

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 * 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
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package org.apache.solr.client.solrj.embedded;

import java.util.ArrayList;
import java.util.List;

import org.apache.solr.SolrTestCaseJ4.SuppressSSL;
import org.apache.lucene.util.LuceneTestCase.Slow;
import org.apache.solr.client.solrj.SolrClient;
import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.StreamingResponseCallback;
import org.apache.solr.client.solrj.impl.BinaryRequestWriter;
import org.apache.solr.client.solrj.impl.BinaryResponseParser;
import org.apache.solr.client.solrj.impl.ConcurrentUpdateSolrClient;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.common.SolrDocument;
import org.apache.solr.common.SolrInputDocument;
import org.junit.Test;

@Slow
@SuppressSSL(bugUrl = "https://issues.apache.org/jira/browse/SOLR-5776")
public class SolrExampleStreamingBinaryTest extends SolrExampleStreamingTest {

  @Override
  public SolrClient createNewSolrClient() {
    ConcurrentUpdateSolrClient client = (ConcurrentUpdateSolrClient)super.createNewSolrClient();
    client.setParser(new BinaryResponseParser());
    client.setRequestWriter(new BinaryRequestWriter());
    return client;
  }

  @Test
  public void testQueryAndStreamResponse() throws Exception {
    // index a simple document with one child
    SolrClient client = getSolrClient();
    client.deleteByQuery("*:*");

    SolrInputDocument child = new SolrInputDocument();
    child.addField("id", "child");
    child.addField("type_s", "child");
    child.addField("text_s", "text");

    SolrInputDocument parent = new SolrInputDocument();
    parent.addField("id", "parent");
    parent.addField("type_s", "parent");
    parent.addChildDocument(child);

    client.add(parent);
    client.commit();

    // create a query with child doc transformer
    SolrQuery query = new SolrQuery("{!parent which='type_s:parent'}text_s:text");
    query.addField("*,[child parentFilter='type_s:parent']");

    // test regular query
    QueryResponse response = client.query(query);
    assertEquals(1, response.getResults().size());
    SolrDocument parentDoc = response.getResults().get(0);
    assertEquals(1, parentDoc.getChildDocumentCount());

    // test streaming
    final List<SolrDocument> docs = new ArrayList<>();
    client.queryAndStreamResponse(query, new StreamingResponseCallback() {
      @Override
      public void streamSolrDocument(SolrDocument doc) {
        docs.add(doc);
      }

      @Override
      public void streamDocListInfo(long numFound, long start, Float maxScore) {
      }
    });

    assertEquals(1, docs.size());
    parentDoc = docs.get(0);
    assertEquals(1, parentDoc.getChildDocumentCount());
  }
}