| /* |
| * 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.lang.invoke.MethodHandles; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import org.apache.solr.cloud.MiniSolrCloudCluster; |
| import org.apache.solr.cloud.SolrCloudTestCase; |
| import org.apache.solr.common.util.NamedList; |
| import org.apache.solr.request.SolrQueryRequest; |
| import org.apache.solr.response.SolrQueryResponse; |
| import org.apache.solr.update.AddUpdateCommand; |
| import org.apache.solr.update.CommitUpdateCommand; |
| import org.apache.solr.update.DeleteUpdateCommand; |
| import org.apache.solr.update.MergeIndexesCommand; |
| import org.apache.solr.update.RollbackUpdateCommand; |
| import org.apache.solr.update.UpdateCommand; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * This Factory is similar to {@link RecordingUpdateProcessorFactory}, but with the goal of |
| * tracking requests across multiple collections/shards/replicas in a {@link SolrCloudTestCase}. |
| * It can optionally save references to the commands it receives inm a single global |
| * Map<String,BlockingQueue> keys in the map are arbitrary, but the intention is that tests |
| * generate a key that is unique to that test, and configure the factory with the key as "group name" |
| * to avoid cross talk between tests. Tests can poll for requests from a group to observe that the expected |
| * commands are executed. By default, this factory does nothing except return the "next" |
| * processor from the chain unless it's told to {@link #startRecording(String)} in which case all factories |
| * with the same group will begin recording. |
| * |
| * This class is only for unit test purposes and should not be used in any production capacity. It presumes all nodes |
| * exist within the same JVM (i.e. {@link MiniSolrCloudCluster}). |
| */ |
| public final class TrackingUpdateProcessorFactory |
| extends UpdateRequestProcessorFactory { |
| |
| private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass()); |
| public static final String REQUEST_COUNT = "TrackingUpdateProcessorRequestCount"; |
| public static final String REQUEST_NODE = "TrackingUpdateProcessorRequestNode"; |
| |
| /** |
| * The map of group queues containing commands that were recorded |
| * @see #startRecording |
| */ |
| private final static Map<String, List<UpdateCommand>> groupToCommands = new ConcurrentHashMap<>(); |
| |
| private String group = "default"; |
| |
| public static void startRecording(String group) { |
| final List<UpdateCommand> updateCommands = groupToCommands.get(group); |
| assert updateCommands == null || updateCommands.isEmpty(); |
| |
| List<UpdateCommand> existing = groupToCommands.put(group, Collections.synchronizedList(new ArrayList<>())); |
| assert existing == null : "Test cross-talk?"; |
| } |
| |
| /** |
| * |
| * @param group the name of the group to fetch |
| * @return A cloned queue containing the same elements as the queue held in groupToCommands |
| */ |
| public static List<UpdateCommand> stopRecording(String group) { |
| List<UpdateCommand> commands = groupToCommands.remove(group); |
| return Arrays.asList(commands.toArray(new UpdateCommand[0])); // safe copy. input list is synchronized |
| } |
| |
| @Override |
| public void init(@SuppressWarnings({"rawtypes"})NamedList args) { |
| if (args != null && args.indexOf("group",0) >= 0) { |
| group = (String) args.get("group"); |
| log.debug("Init URP, group '{}'", group); |
| } else { |
| log.warn("TrackingUpdateProcessorFactory initialized without group configuration, using 'default' but this group is shared" + |
| "across the entire VM and guaranteed to have unpredictable behavior if used by more than one test"); |
| } |
| } |
| |
| @Override |
| @SuppressWarnings("resource") |
| public synchronized UpdateRequestProcessor getInstance(SolrQueryRequest req, |
| SolrQueryResponse rsp, |
| UpdateRequestProcessor next ) { |
| final List<UpdateCommand> commands = groupToCommands.get(group); |
| return commands == null ? next : new RecordingUpdateRequestProcessor(commands, next); |
| } |
| |
| private static final class RecordingUpdateRequestProcessor |
| extends UpdateRequestProcessor { |
| |
| private final List<UpdateCommand> groupCommands; |
| |
| RecordingUpdateRequestProcessor(List<UpdateCommand> groupCommands, UpdateRequestProcessor next) { |
| super(next); |
| this.groupCommands = groupCommands; |
| } |
| |
| private void record(UpdateCommand cmd) { |
| groupCommands.add(cmd.clone()); // important because cmd.clear() will be called |
| |
| Map<Object, Object> context = cmd.getReq().getContext(); |
| context.put(REQUEST_COUNT, groupCommands.size()); |
| context.put(REQUEST_NODE, cmd.getReq().getCore().getName()); |
| } |
| |
| @Override |
| public void processAdd(AddUpdateCommand cmd) throws IOException { |
| record(cmd); |
| super.processAdd(cmd); |
| } |
| @Override |
| public void processDelete(DeleteUpdateCommand cmd) throws IOException { |
| record(cmd); |
| super.processDelete(cmd); |
| } |
| @Override |
| public void processMergeIndexes(MergeIndexesCommand cmd) throws IOException { |
| record(cmd); |
| super.processMergeIndexes(cmd); |
| } |
| @Override |
| public void processCommit(CommitUpdateCommand cmd) throws IOException { |
| record(cmd); |
| super.processCommit(cmd); |
| } |
| @Override |
| public void processRollback(RollbackUpdateCommand cmd) throws IOException { |
| record(cmd); |
| super.processRollback(cmd); |
| } |
| } |
| } |
| |
| |
| |