epugh commented on code in PR #5238: URL: https://github.com/apache/solr/pull/5238#discussion_r4414212059
########## solr/core/src/test/org/apache/solr/handler/component/SearchRequestListenerTest.java: ########## @@ -0,0 +1,402 @@ +/* + * 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.handler.component; + +import java.util.ArrayList; +import java.util.List; +import java.util.Queue; +import java.util.Set; +import java.util.concurrent.ConcurrentLinkedQueue; +import org.apache.solr.client.solrj.SolrClient; +import org.apache.solr.client.solrj.SolrRequest; +import org.apache.solr.client.solrj.embedded.EmbeddedSolrServer; +import org.apache.solr.client.solrj.request.CollectionAdminRequest; +import org.apache.solr.client.solrj.request.QueryRequest; +import org.apache.solr.client.solrj.request.SolrPing; +import org.apache.solr.client.solrj.request.SolrQuery; +import org.apache.solr.client.solrj.request.UpdateRequest; +import org.apache.solr.client.solrj.request.V2Request; +import org.apache.solr.client.solrj.response.InputStreamResponseParser; +import org.apache.solr.client.solrj.response.QueryResponse; +import org.apache.solr.cloud.SolrCloudTestCase; +import org.apache.solr.common.SolrException; +import org.apache.solr.common.cloud.Replica; +import org.apache.solr.common.params.ModifiableSolrParams; +import org.apache.solr.common.util.NamedList; +import org.apache.solr.common.util.SimpleOrderedMap; +import org.apache.solr.core.SolrCore; +import org.apache.solr.embedded.JettySolrRunner; +import org.apache.solr.request.SolrQueryRequest; +import org.apache.solr.request.SolrQueryRequestBase; +import org.apache.solr.request.SolrRequestInfo; +import org.apache.solr.response.SolrQueryResponse; +import org.apache.solr.search.CallerSpecificQueryLimit; +import org.apache.solr.util.TestInjection; +import org.apache.solr.util.ThreadCpuTimer; +import org.junit.After; +import org.junit.Before; +import org.junit.BeforeClass; +import org.junit.Test; + +public class SearchRequestListenerTest extends SolrCloudTestCase { + private static final String COLLECTION = "listener"; + private static final String DISPATCH_COLLECTION = "listener_dispatch"; + private static final int NUM_SHARDS = 2; + private static final Queue<Event> events = new ConcurrentLinkedQueue<>(); + + private static final List<SearchRequestListener> listeners = new ArrayList<>(); + + private record Event(String node, SearchRequestInfo info) {} + + @BeforeClass + public static void setupCluster() throws Exception { + configureCluster(2) + .addConfig("conf", configset("cloud-minimal")) + .addConfig("dispatch", configset("search-request-listener")) + .configure(); + createCollection(COLLECTION); + createCollection(DISPATCH_COLLECTION, "dispatch"); + } + + @Before + public void registerListeners() { + events.clear(); + addListeners(false); + } + + @After + public void removeListeners() { + for (JettySolrRunner jetty : cluster.getJettySolrRunners()) { + listeners.forEach(jetty.getCoreContainer()::removeSearchRequestListener); + } + listeners.clear(); + } + + private static void createCollection(String name) throws Exception { + createCollection(name, "conf"); + } + + private static void createCollection(String name, String config) throws Exception { + CollectionAdminRequest.createCollection(name, config, NUM_SHARDS, 1) + .processAndWait(cluster.getSolrClient(), DEFAULT_TIMEOUT); + cluster.waitForActiveCollection(name, NUM_SHARDS, NUM_SHARDS); + new UpdateRequest() + .add("id", "1") + .add("id", "2") + .add("id", "3") + .commit(cluster.getSolrClient(), name); + } + + private static void addListeners(boolean withThrowingListener) { + for (JettySolrRunner jetty : cluster.getJettySolrRunners()) { + String node = jetty.getNodeName(); + if (withThrowingListener) { + addListener( + jetty, + info -> { + throw new RuntimeException("listener failure"); + }); + } + addListener(jetty, info -> events.add(new Event(node, info))); + } + } + + private static void addListener(JettySolrRunner jetty, SearchRequestListener listener) { + listeners.add(listener); + jetty.getCoreContainer().addSearchRequestListener(listener); + } + + private static SolrClient nodeClient() { Review Comment: cool -- This is an automated message from the Apache Git Service. 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