| /* |
| * 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 org.apache.solr.request.SolrQueryRequest; |
| import org.apache.solr.response.SolrQueryResponse; |
| import org.apache.solr.update.UpdateCommand; |
| 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 java.util.concurrent.BlockingQueue; |
| import java.util.concurrent.LinkedBlockingQueue; |
| |
| /** |
| * This Factory can optionally save references to the commands it receives in |
| * BlockingQueues that tests can poll from 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()} |
| */ |
| public final class RecordingUpdateProcessorFactory |
| extends UpdateRequestProcessorFactory { |
| |
| private boolean recording = false; |
| |
| /** The queue containing commands that were recorded |
| * @see #startRecording |
| */ |
| public final BlockingQueue<UpdateCommand> commandQueue |
| = new LinkedBlockingQueue<UpdateCommand>(); |
| |
| /** |
| * @see #stopRecording |
| * @see #commandQueue |
| */ |
| public synchronized void startRecording() { |
| recording = true; |
| } |
| |
| /** @see #startRecording */ |
| public synchronized void stopRecording() { |
| recording = false; |
| } |
| |
| @Override |
| @SuppressWarnings("resource") |
| public synchronized UpdateRequestProcessor getInstance(SolrQueryRequest req, |
| SolrQueryResponse rsp, |
| UpdateRequestProcessor next ) { |
| return recording ? new RecordingUpdateRequestProcessor(commandQueue, next) : next; |
| } |
| |
| private static final class RecordingUpdateRequestProcessor |
| extends UpdateRequestProcessor { |
| |
| private final BlockingQueue<UpdateCommand> commandQueue; |
| |
| public RecordingUpdateRequestProcessor(BlockingQueue<UpdateCommand> commandQueue, |
| UpdateRequestProcessor next) { |
| super(next); |
| this.commandQueue = commandQueue; |
| } |
| |
| private void record(UpdateCommand cmd) { |
| if (! commandQueue.offer(cmd) ) { |
| throw new RuntimeException |
| ("WTF: commandQueue should be unbounded but offer failed: " + cmd.toString()); |
| } |
| } |
| |
| @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); |
| } |
| } |
| } |
| |
| |
| |