/*
 * 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;

import java.util.concurrent.Callable;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import org.apache.ignite.IgniteCheckedException;
import org.apache.ignite.testframework.GridTestUtils;
import org.apache.ignite.transactions.TransactionConcurrency;
import org.apache.ignite.transactions.TransactionIsolation;
import org.jetbrains.annotations.Nullable;
import org.junit.Test;

import static org.apache.ignite.transactions.TransactionConcurrency.PESSIMISTIC;
import static org.apache.ignite.transactions.TransactionIsolation.REPEATABLE_READ;

/**
 * Tests for local transactions.
 */
public abstract class IgniteMvccTxMultiThreadedAbstractTest extends IgniteTxAbstractTest {
    /**
     * @return Thread count.
     */
    protected abstract int threadCount();

    /**
     /**
     * @throws IgniteCheckedException If test failed.
     */
    @Test
    public void testPessimisticRepeatableReadCommitMultithreaded() throws Exception {
        checkCommitMultithreaded(PESSIMISTIC, REPEATABLE_READ);

        finalChecks();
    }

    /**
     * @throws IgniteCheckedException If test failed.
     */
    @Test
    public void testPessimisticRepeatableReadRollbackMultithreaded() throws Exception {
        checkRollbackMultithreaded(PESSIMISTIC, REPEATABLE_READ);

        finalChecks();
    }

    /**
     * @param concurrency Concurrency.
     * @param isolation Isolation.
     * @throws Exception If check failed.
     */
    protected void checkCommitMultithreaded(final TransactionConcurrency concurrency,
        final TransactionIsolation isolation) throws Exception {
        GridTestUtils.runMultiThreaded(new Callable<Object>() {
            @Nullable @Override public Object call() throws Exception {
                Thread t = Thread.currentThread();

                t.setName(t.getName() + "-id-" + t.getId());

                info("Starting commit thread: " + Thread.currentThread().getName());

                try {
                    checkCommit(concurrency, isolation);
                }
                finally {
                    info("Finished commit thread: " + Thread.currentThread().getName());
                }

                return null;
            }
        }, threadCount(), concurrency + "-" + isolation);
    }

    /**
     * @param concurrency Concurrency.
     * @param isolation Isolation.
     * @throws Exception If check failed.
     */
    protected void checkRollbackMultithreaded(final TransactionConcurrency concurrency,
        final TransactionIsolation isolation) throws Exception {
        final ConcurrentMap<Integer, String> map = new ConcurrentHashMap<>();
        GridTestUtils.runMultiThreaded(new Callable<Object>() {
            @Nullable @Override public Object call() throws Exception {
                Thread t = Thread.currentThread();

                t.setName(t.getName() + "-id-" + t.getId());

                info("Starting rollback thread: " + Thread.currentThread().getName());

                try {
                    checkRollback(map, concurrency, isolation);

                    return null;
                }
                finally {
                    info("Finished rollback thread: " + Thread.currentThread().getName());
                }
            }
        }, threadCount(), concurrency + "-" + isolation);
    }
}