| /* |
| * 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.jcr; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.apache.jackrabbit.oak.plugins.atomic.AtomicCounterEditor.PROP_COUNTER; |
| import static org.apache.jackrabbit.oak.plugins.atomic.AtomicCounterEditor.PROP_INCREMENT; |
| import static org.apache.jackrabbit.oak.spi.nodetype.NodeTypeConstants.MIX_ATOMIC_COUNTER; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assume.assumeTrue; |
| |
| import java.util.List; |
| import java.util.Random; |
| import java.util.Set; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| import javax.jcr.Node; |
| import javax.jcr.RepositoryException; |
| import javax.jcr.Session; |
| |
| import com.google.common.collect.Lists; |
| import com.google.common.util.concurrent.Futures; |
| import com.google.common.util.concurrent.ListenableFutureTask; |
| import org.apache.jackrabbit.oak.NodeStoreFixtures; |
| import org.apache.jackrabbit.oak.commons.FixturesHelper; |
| import org.apache.jackrabbit.oak.commons.FixturesHelper.Fixture; |
| import org.apache.jackrabbit.oak.fixture.NodeStoreFixture; |
| import org.jetbrains.annotations.NotNull; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| public class AtomicCounterIT extends AbstractRepositoryTest { |
| private static final Set<Fixture> FIXTURES = FixturesHelper.getFixtures(); |
| |
| public AtomicCounterIT(NodeStoreFixture fixture) { |
| super(fixture); |
| } |
| |
| @BeforeClass |
| public static void assumptions() { |
| assumeTrue(FIXTURES.contains(Fixture.SEGMENT_TAR)); |
| } |
| |
| @Test |
| public void concurrentSegmentIncrements() throws RepositoryException, InterruptedException, |
| ExecutionException { |
| // ensuring the run only on allowed fix |
| assumeTrue(NodeStoreFixtures.SEGMENT_TAR.equals(fixture)); |
| |
| // setting-up |
| Session session = getAdminSession(); |
| |
| try { |
| Node counter = session.getRootNode().addNode("counter"); |
| counter.addMixin(MIX_ATOMIC_COUNTER); |
| session.save(); |
| |
| final AtomicLong expected = new AtomicLong(0); |
| final String counterPath = counter.getPath(); |
| final Random rnd = new Random(11); |
| |
| // ensuring initial state |
| assertEquals(expected.get(), counter.getProperty(PROP_COUNTER).getLong()); |
| |
| List<ListenableFutureTask<Void>> tasks = Lists.newArrayList(); |
| for (int t = 0; t < 100; t++) { |
| tasks.add(updateCounter(counterPath, rnd.nextInt(10) + 1, expected)); |
| } |
| Futures.allAsList(tasks).get(); |
| |
| session.refresh(false); |
| assertEquals(expected.get(), |
| session.getNode(counterPath).getProperty(PROP_COUNTER).getLong()); |
| } finally { |
| session.logout(); |
| } |
| } |
| |
| private ListenableFutureTask<Void> updateCounter(@NotNull final String counterPath, |
| final long delta, |
| @NotNull final AtomicLong expected) { |
| checkNotNull(counterPath); |
| checkNotNull(expected); |
| |
| ListenableFutureTask<Void> task = ListenableFutureTask.create(new Callable<Void>() { |
| |
| @Override |
| public Void call() throws Exception { |
| Session session = createAdminSession(); |
| try { |
| Node c = session.getNode(counterPath); |
| c.setProperty(PROP_INCREMENT, delta); |
| expected.addAndGet(delta); |
| session.save(); |
| } finally { |
| session.logout(); |
| } |
| return null; |
| } |
| }); |
| |
| new Thread(task).start(); |
| return task; |
| } |
| |
| @Override |
| protected Jcr initJcr(Jcr jcr) { |
| return super.initJcr(jcr).withAtomicCounter(); |
| } |
| } |