| /* |
| * 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.plugins.document; |
| |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| import org.apache.jackrabbit.oak.api.CommitFailedException; |
| import org.apache.jackrabbit.oak.plugins.document.memory.MemoryDocumentStore; |
| import org.apache.jackrabbit.oak.spi.state.NodeBuilder; |
| import org.junit.Rule; |
| import org.junit.Test; |
| |
| import static org.apache.jackrabbit.oak.plugins.document.Collection.NODES; |
| import static org.apache.jackrabbit.oak.plugins.document.TestUtils.isFinalCommitRootUpdate; |
| import static org.apache.jackrabbit.oak.plugins.document.TestUtils.merge; |
| import static org.hamcrest.Matchers.lessThan; |
| import static org.junit.Assert.assertThat; |
| import static org.junit.Assert.fail; |
| |
| public class BatchRollbackTest { |
| |
| @Rule |
| public DocumentMKBuilderProvider builderProvider = new DocumentMKBuilderProvider(); |
| |
| private TestStore store = new TestStore(); |
| |
| @Test |
| public void batchRollback() throws Exception { |
| DocumentNodeStore ns = builderProvider.newBuilder() |
| .setDocumentStore(store) |
| .setAsyncDelay(0).build(); |
| ns.setMaxBackOffMillis(0); |
| |
| // prepare some test nodes |
| NodeBuilder builder = ns.getRoot().builder(); |
| for (int i = 0; i < 10; i++) { |
| builder.child("node-" + i); |
| } |
| merge(ns, builder); |
| |
| // perform an merge that fails |
| builder = ns.getRoot().builder(); |
| for (int i = 0; i < 10; i++) { |
| builder.child("node-" + i).child("test"); |
| } |
| store.resetCounters(); |
| store.failCommitOnce.set(true); |
| try { |
| merge(ns, builder); |
| fail("must fail with CommitFailedException"); |
| } catch (CommitFailedException e) { |
| // expected |
| } |
| assertThat(store.getNumCreateOrUpdateCalls(NODES), lessThan(4)); |
| } |
| |
| private static class TestStore extends CountingDocumentStore { |
| |
| final AtomicBoolean failCommitOnce = new AtomicBoolean(); |
| |
| TestStore() { |
| super(new MemoryDocumentStore()); |
| } |
| |
| @Override |
| public <T extends Document> T findAndUpdate(Collection<T> collection, |
| UpdateOp update) { |
| if (collection == Collection.NODES |
| && isFinalCommitRootUpdate(update) |
| && failCommitOnce.compareAndSet(true, false)) { |
| throw new DocumentStoreException("commit failed"); |
| } |
| return super.findAndUpdate(collection, update); |
| } |
| } |
| } |