| /* |
| * 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 static com.google.common.collect.Lists.newArrayList; |
| |
| import java.util.List; |
| import java.util.Random; |
| |
| import javax.jcr.Node; |
| import javax.jcr.RepositoryException; |
| import javax.jcr.Session; |
| |
| import org.apache.commons.io.output.NullOutputStream; |
| import org.apache.jackrabbit.commons.JcrUtils; |
| |
| /** |
| * Test case that writes blobs concurrently and concurrently reads |
| * the blobs back when available. |
| */ |
| public class ConcurrentFileWriteTest extends AbstractTest { |
| |
| private static final int FILE_SIZE = Integer.getInteger("fileSize", 1900); |
| |
| private static final int WRITERS = Integer.getInteger("fileWriters", 50); |
| |
| private static final int READERS = Integer.getInteger("fileReaders", 50); |
| |
| protected static final String ROOT_NODE_NAME = |
| "concurrentFileWriteTest" + TEST_ID; |
| |
| private final Random random = new Random(); |
| |
| private final List<String> paths = newArrayList(); |
| |
| private Writer writer; |
| |
| @Override |
| public void beforeSuite() throws RepositoryException { |
| Session session = loginWriter(); |
| session.getRootNode().addNode(ROOT_NODE_NAME); |
| session.save(); |
| |
| this.writer = new Writer(0); |
| writer.run(); |
| |
| for (int i = 1; i < WRITERS; i++) { |
| addBackgroundJob(new Writer(i)); |
| } |
| for (int i = 0; i < READERS; i++) { |
| addBackgroundJob(new Reader()); |
| } |
| } |
| |
| @Override |
| public void runTest() throws Exception { |
| writer.run(); |
| } |
| |
| private synchronized String getRandomPath() { |
| return paths.get(random.nextInt(paths.size())); |
| } |
| |
| private synchronized void addPath(String path) { |
| paths.add(path); |
| } |
| |
| private class Reader implements Runnable { |
| |
| private final Session session = loginWriter(); |
| |
| @Override |
| public void run() { |
| try { |
| String path = getRandomPath(); |
| session.refresh(false); |
| JcrUtils.readFile( |
| session.getNode(path), new NullOutputStream()); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| } |
| |
| private class Writer implements Runnable { |
| |
| private final Node parent; |
| |
| private long counter = 0; |
| |
| Writer(int id) throws RepositoryException { |
| this.parent = loginWriter() |
| .getRootNode() |
| .getNode(ROOT_NODE_NAME) |
| .addNode("writer-" + id); |
| parent.getSession().save(); |
| } |
| |
| @Override |
| public void run() { |
| try { |
| parent.getSession().refresh(false); |
| Node file = JcrUtils.putFile( |
| parent, "file-" + counter++, |
| "application/octet-stream", |
| new TestInputStream(FILE_SIZE * 1024)); |
| parent.getSession().save(); |
| addPath(file.getPath()); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| } |
| |
| } |