modules/core/src/test/java/org/apache/ignite/internal/processors/cache/distributed/IgniteCacheThreadLocalTxTest.java

/*
 * 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.ignite.internal.processors.cache.distributed;

import java.util.concurrent.ThreadLocalRandom;
import org.apache.ignite.Ignite;
import org.apache.ignite.IgniteCache;
import org.apache.ignite.IgniteTransactions;
import org.apache.ignite.configuration.CacheConfiguration;
import org.apache.ignite.internal.IgniteKernal;
import org.apache.ignite.internal.util.typedef.G;
import org.apache.ignite.lang.IgniteFuture;
import org.apache.ignite.testframework.MvccFeatureChecker;
import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
import org.apache.ignite.transactions.Transaction;
import org.apache.ignite.transactions.TransactionConcurrency;
import org.apache.ignite.transactions.TransactionIsolation;
import org.junit.Test;

import static org.apache.ignite.cache.CacheAtomicityMode.TRANSACTIONAL;

/**
 *
 */
public class IgniteCacheThreadLocalTxTest extends GridCommonAbstractTest {
    /** {@inheritDoc} */
    @Override protected void afterTest() throws Exception {
        stopAllGrids();

        super.afterTest();
    }

    /**
     * @throws Exception If failed.
     */
    @Test
    public void testSingleNode() throws Exception {
        threadLocalTx(startGrid(0));
    }

    /**
     * @throws Exception If failed.
     */
    @Test
    public void testMultiNode() throws Exception {
        startGridsMultiThreaded(4);

        startClientGrid(4);

        for (Ignite node : G.allGrids())
            threadLocalTx(node);
    }

    /**
     * @param node Node.
     * @throws Exception If failed.
     */
    @SuppressWarnings("unchecked")
    private void threadLocalTx(Ignite node) throws Exception {
        CacheConfiguration ccfg = new CacheConfiguration(DEFAULT_CACHE_NAME);

        ccfg.setAtomicityMode(TRANSACTIONAL);
        ccfg.setBackups(2);

        IgniteCache<Object, Object> cache = node.getOrCreateCache(ccfg);

        checkNoTx(node);

        boolean[] reads = {true, false};
        boolean[] writes = {true, false};
        int endOps = 5;

        for (TransactionConcurrency concurrency : TransactionConcurrency.values()) {
            for (TransactionIsolation isolation : TransactionIsolation.values()) {
                if (MvccFeatureChecker.forcedMvcc() && !MvccFeatureChecker.isSupported(concurrency, isolation))
                    continue;

                for (boolean read : reads) {
                    for (boolean write : writes) {
                        for (int i = 0; i < endOps; i++)
                            checkTx(concurrency, isolation, node, cache, read, write, i);
                    }
                }
            }
        }

        checkNoTx(node);

        cache.put(1, 1);

        checkNoTx(node);
    }

    /**
     * @param concurrency Tx concurrency.
     * @param isolation Tx isolation.
     * @param node Node.
     * @param cache Cache.
     * @param read {@code True} if read in tx.
     * @param write {@code True} if write in tx.
     * @param endOp Operation to test.
     */
    private void checkTx(TransactionConcurrency concurrency,
        TransactionIsolation isolation,
        Ignite node,
        IgniteCache<Object, Object> cache,
        boolean read,
        boolean write,
        int endOp) {
        IgniteTransactions txs = node.transactions();

        checkNoTx(node);

        Transaction tx = txs.txStart(concurrency, isolation);

        assertEquals(tx, txs.tx());

        try {
            txs.txStart(concurrency, isolation);

            fail();
        }
        catch (IllegalStateException expected) {
            // No-op.
        }

        if (read)
            cache.get(ThreadLocalRandom.current().nextInt(100_000));

        if (write)
            cache.put(ThreadLocalRandom.current().nextInt(100_000), 1);

        try {
            txs.txStart(concurrency, isolation);

            fail();
        }
        catch (IllegalStateException expected) {
            // No-op.
        }

        assertEquals(tx, txs.tx());

        IgniteFuture fut = null;

        switch (endOp) {
            case 0:
                tx.commit();

                break;

            case 1:
                fut = tx.commitAsync();

                break;

            case 2:
                tx.rollback();

                break;

            case 3:
                fut = tx.rollbackAsync();

                break;

            case 4:
                tx.close();

                break;

            default:
                fail();
        }

        if (fut != null)
            fut.get();

        checkNoTx(node);
    }

    /**
     * @param node Node.
     */
    private void checkNoTx(Ignite node) {
        IgniteTransactions txs = node.transactions();

        assertNull(txs.tx());
        assertNull(((IgniteKernal)node).context().cache().context().tm().tx());
    }
}