| /* |
| * 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.core; |
| |
| import java.util.Random; |
| |
| import javax.jcr.Node; |
| import javax.jcr.NodeIterator; |
| import javax.jcr.RepositoryException; |
| import javax.jcr.Session; |
| |
| import org.apache.jackrabbit.core.integration.random.operation.Operation; |
| import org.apache.jackrabbit.core.persistence.check.ConsistencyReport; |
| |
| /** |
| * <code>ConcurrentAddMoveRemoveTest</code> performs a test with 5 threads which |
| * concurrently add, (workspace) move and remove nodes. This test is intended to |
| * make sure these concurrent actions don't lead to inconsistencies in the database. |
| * See also: JCR-3292. |
| */ |
| public class ConcurrentAddMoveRemoveTest extends AbstractConcurrencyTest { |
| |
| private static final int RUN_NUM_SECONDS = 20; |
| |
| private long end; |
| |
| private String folder1Path; |
| private String folder2Path; |
| |
| protected void setUp() throws Exception { |
| super.setUp(); |
| end = System.currentTimeMillis() + RUN_NUM_SECONDS * 1000; |
| folder1Path = testRootNode.addNode("folder1").getPath(); |
| folder2Path = testRootNode.addNode("folder2").getPath(); |
| testRootNode.getSession().save(); |
| } |
| |
| @Override |
| public void tearDown() throws Exception { |
| ConsistencyReport consistencyReport = TestHelper.checkConsistency(testRootNode.getSession(), false, null); |
| //for (ReportItem item : consistencyReport.getItems()) { |
| // System.out.println(item.getMessage()); |
| //} |
| assertTrue(consistencyReport.getItems().size() == 0); |
| super.tearDown(); |
| } |
| |
| public void testRandomOperations() throws RepositoryException { |
| runTask(new AddMoveRemoveTask(end, folder1Path, folder2Path), 5, testRootNode.getPath()); |
| } |
| |
| public static class AddMoveRemoveTask implements Task { |
| |
| private final long end; |
| private final String folder1Path; |
| private final String folder2Path; |
| |
| private final Random random = new Random(); |
| |
| public AddMoveRemoveTask(long end, String folder1Path, String folder2Path) { |
| this.end = end; |
| this.folder1Path = folder1Path; |
| this.folder2Path = folder2Path; |
| } |
| |
| public void execute(final Session session, final Node test) throws RepositoryException { |
| while (end > System.currentTimeMillis()) { |
| try { |
| getRandomOperation(session).execute(); |
| } catch (RepositoryException e) { |
| // RepositoryExceptions are expected during concurrent actions. |
| session.refresh(false); |
| } catch (Exception e) { |
| // only a RepositoryException is allowed from a Task |
| throw new RepositoryException("Failure during concurrent execution", e); |
| } |
| } |
| } |
| |
| private Operation getRandomOperation(Session session) throws RepositoryException { |
| switch (random.nextInt(3)) { |
| case 0: |
| return new Add(session, getRandomParent()); |
| case 1: { |
| String folderPath = getRandomParent(); |
| return new WorkspaceMove(session, getRandomChild(session, folderPath), |
| folderPath.equals(folder1Path) ? folder2Path : folder1Path); |
| } |
| default: { |
| String folderPath = getRandomParent(); |
| return new Remove(session, getRandomChild(session, folderPath)); |
| } |
| } |
| } |
| |
| private String getRandomChild(Session session, String parentPath) throws RepositoryException { |
| Node parent = session.getNode(parentPath); |
| NodeIterator nodes = parent.getNodes(); |
| int size = (int) nodes.getSize(); |
| if (size > 0) { |
| int i = 1; |
| int offset = random.nextInt(size); |
| while (nodes.hasNext()) { |
| if (i == offset) { |
| return nodes.nextNode().getPath(); |
| } |
| nodes.nextNode(); |
| i++; |
| } |
| } |
| return null; |
| } |
| |
| private String getRandomParent() { |
| switch (random.nextInt(2)) { |
| case 0: |
| return folder1Path; |
| default: |
| return folder2Path; |
| } |
| } |
| |
| private class Add extends Operation { |
| |
| private final String name; |
| |
| public Add(Session s, String folderPath) { |
| super(s, folderPath); |
| this.name = getRandomText(4); |
| } |
| |
| @Override |
| public NodeIterator execute() throws Exception { |
| getNode().addNode(name); |
| getSession().save(); |
| return null; |
| } |
| } |
| |
| private class Remove extends Operation { |
| |
| public Remove(Session s, String path) { |
| super(s, path); |
| } |
| |
| @Override |
| public NodeIterator execute() throws Exception { |
| if (getPath() != null) { |
| getNode().remove(); |
| getSession().save(); |
| } |
| return null; |
| } |
| |
| } |
| |
| private class WorkspaceMove extends Operation { |
| |
| private final String folderPath; |
| |
| public WorkspaceMove(Session s, String path, String folderPath) { |
| super(s, path); |
| this.folderPath = folderPath; |
| } |
| |
| @Override |
| public NodeIterator execute() throws Exception { |
| if (getPath() != null) { |
| String destination = folderPath + "/" + getRandomText(4); |
| getSession().getWorkspace().move(getPath(), destination); |
| } |
| return null; |
| } |
| |
| } |
| } |
| |
| } |