| /* |
| * 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.jackrabbit.oak.benchmark; |
| |
| import java.util.Random; |
| |
| import javax.jcr.InvalidItemStateException; |
| import javax.jcr.Node; |
| import javax.jcr.RepositoryException; |
| import javax.jcr.Session; |
| |
| /** |
| * Test case that traverses 10k unstructured nodes (100x100) while 50 concurrent |
| * readers randomly access nodes from within this tree. |
| */ |
| public class ConcurrentReadTest extends AbstractTest { |
| |
| protected static final int NODE_COUNT = 100; |
| |
| protected static final String ROOT_NODE_NAME = "test" + TEST_ID; |
| |
| private final int backgroundReaderCount; |
| |
| private final int backgroundWriterCount; |
| |
| private final boolean foregroundIsReader; |
| |
| private Runnable foregroundTask; |
| |
| protected ConcurrentReadTest( |
| int backgroundReaderCount, int backgroundWriterCount, |
| boolean foregroundIsReader) { |
| this.backgroundReaderCount = backgroundReaderCount; |
| this.backgroundWriterCount = backgroundWriterCount; |
| this.foregroundIsReader = foregroundIsReader; |
| } |
| |
| public ConcurrentReadTest() { |
| this(getScale(20), 0, true); |
| } |
| |
| @Override |
| public void beforeSuite() throws Exception { |
| Session session = loginWriter(); |
| Node root = session.getRootNode().addNode(ROOT_NODE_NAME, "nt:unstructured"); |
| for (int i = 0; i < NODE_COUNT; i++) { |
| Node node = root.addNode("node" + i, "nt:unstructured"); |
| for (int j = 0; j < NODE_COUNT; j++) { |
| node.addNode("node" + j, "nt:unstructured"); |
| } |
| session.save(); |
| } |
| |
| if (foregroundIsReader) { |
| foregroundTask = new Reader(); |
| } else { |
| foregroundTask = new Writer(); |
| } |
| |
| for (int i = 0; i < backgroundReaderCount; i++) { |
| addBackgroundJob(new Reader()); |
| } |
| for (int i = 0; i < backgroundWriterCount; i++) { |
| addBackgroundJob(new Writer()); |
| } |
| } |
| |
| private class Reader implements Runnable { |
| |
| private final Random random = new Random(); |
| |
| private final Session session = loginWriter(); // TODO: anonymous is slow |
| |
| public void run() { |
| try { |
| session.refresh(false); |
| for (int i = 0; i < 10000; i++) { |
| int a = random.nextInt(NODE_COUNT); |
| int b = random.nextInt(NODE_COUNT); |
| session.getRootNode().getNode(ROOT_NODE_NAME + "/node" + a + "/node" + b); |
| } |
| } catch (RepositoryException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| } |
| |
| private class Writer implements Runnable { |
| |
| private final Random random = new Random(); |
| |
| private final Session session = loginWriter(); |
| |
| private long count; |
| |
| public void run() { |
| try { |
| session.refresh(false); |
| for (int i = 0; i < 10; i++) { |
| int a = random.nextInt(NODE_COUNT); |
| int b = random.nextInt(NODE_COUNT); |
| Node node = session.getRootNode().getNode( |
| ROOT_NODE_NAME + "/node" + a + "/node" + b); |
| boolean done = false; |
| while (!done) { |
| try { |
| node.setProperty("count", count++); |
| session.save(); |
| done = true; |
| } catch (InvalidItemStateException e) { |
| // retry with a fresh session |
| session.refresh(false); |
| } |
| } |
| } |
| } catch (RepositoryException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| } |
| |
| @Override |
| public void runTest() throws Exception { |
| foregroundTask.run(); |
| } |
| |
| @Override |
| public void afterSuite() throws Exception { |
| Session session = loginWriter(); |
| Node root = session.getRootNode().getNode(ROOT_NODE_NAME); |
| for (int i = 0; i < NODE_COUNT; i++) { |
| root.getNode("node" + i).remove(); |
| session.save(); |
| } |
| root.remove(); |
| session.save(); |
| } |
| |
| } |