concurrentcheckinmixedtransactiontest.java

来自「jsr170接口的java实现。是个apache的开源项目。」· Java 代码 · 共 96 行

/*
 * 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 javax.jcr.RepositoryException;
import javax.jcr.Session;
import javax.jcr.Node;
import javax.transaction.NotSupportedException;
import javax.transaction.SystemException;
import javax.transaction.HeuristicMixedException;
import javax.transaction.HeuristicRollbackException;
import javax.transaction.RollbackException;

/**
 * <code>ConcurrentCheckinMixedTransactionTest</code> performs concurrent
 * version operations with only some threads using XATransactions.
 */
public class ConcurrentCheckinMixedTransactionTest
        extends AbstractConcurrencyTest {

    private static final int NUM_THREADS = 10;

    private static final int RUN_NUM_SECONDS = 20;

    public void testCheckInOut() throws RepositoryException {
        final long end = System.currentTimeMillis() + RUN_NUM_SECONDS * 1000;
        // tasks with even ids run within transactions
        final int[] taskId = new int[1];
        Thread t = new Thread(new Runnable() {
            public void run() {
                try {
                    runTask(new Task() {
                        public void execute(Session session, Node test)
                                throws RepositoryException {
                            int id;
                            synchronized (ConcurrentCheckinMixedTransactionTest.this) {
                                id = taskId[0]++;
                            }
                            int i = 0;
                            while (end > System.currentTimeMillis()) {
                                UserTransactionImpl uTx = null;
                                try {
                                    if (id % 2 == 0) {
                                        uTx = new UserTransactionImpl(session);
                                        uTx.begin();
                                    }
                                    Node n = test.addNode("node" + i++);
                                    n.addMixin(mixVersionable);
                                    session.save();
                                    n.checkout();
                                    n.checkin();
                                    if (uTx != null) {
                                        uTx.commit();
                                    }
                                } catch (NotSupportedException e) {
                                    throw new RepositoryException(e);
                                } catch (SystemException e) {
                                    throw new RepositoryException(e);
                                } catch (HeuristicMixedException e) {
                                    throw new RepositoryException(e);
                                } catch (HeuristicRollbackException e) {
                                    throw new RepositoryException(e);
                                } catch (RollbackException e) {
                                    throw new RepositoryException(e);
                                }
                            }
                        }
                    }, NUM_THREADS);
                } catch (RepositoryException e) {
                    e.printStackTrace();
                }
            }
        });
        t.start();
        try {
            t.join();
        } catch (InterruptedException e) {
            // ignore
        }
    }
}