co.cask.tephra.examples.BalanceBooksTest.java Source code

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Here is the source code for co.cask.tephra.examples.BalanceBooksTest.java

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/*
 * Copyright  2015 Cask Data, Inc.
 *
 * Licensed 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 co.cask.tephra.examples;

import co.cask.tephra.TxConstants;
import co.cask.tephra.distributed.TransactionService;
import co.cask.tephra.persist.InMemoryTransactionStateStorage;
import co.cask.tephra.persist.TransactionStateStorage;
import co.cask.tephra.runtime.ConfigModule;
import co.cask.tephra.runtime.DiscoveryModules;
import co.cask.tephra.runtime.TransactionClientModule;
import co.cask.tephra.runtime.TransactionModules;
import co.cask.tephra.runtime.ZKModule;
import com.google.inject.AbstractModule;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.Scopes;
import com.google.inject.util.Modules;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.twill.zookeeper.ZKClientService;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import static org.junit.Assert.assertTrue;

/**
 * Tests the {@link BalanceBooks} program.
 */
public class BalanceBooksTest {
    private static final Logger LOG = LoggerFactory.getLogger(BalanceBooksTest.class);
    private static HBaseTestingUtility testUtil;
    private static TransactionService txService;
    private static ZKClientService zkClientService;

    @BeforeClass
    public static void setup() throws Exception {
        testUtil = new HBaseTestingUtility();
        Configuration conf = testUtil.getConfiguration();
        conf.setBoolean(TxConstants.Manager.CFG_DO_PERSIST, false);
        conf.set(TxConstants.Manager.CFG_TX_SNAPSHOT_DIR, "/tx.snapshot");

        // Tune down the connection thread pool size
        conf.setInt("hbase.hconnection.threads.core", 5);
        conf.setInt("hbase.hconnection.threads.max", 10);
        // Tunn down handler threads in regionserver
        conf.setInt("hbase.regionserver.handler.count", 10);

        // Set to random port
        conf.setInt("hbase.master.port", 0);
        conf.setInt("hbase.master.info.port", 0);
        conf.setInt("hbase.regionserver.port", 0);
        conf.setInt("hbase.regionserver.info.port", 0);

        testUtil.startMiniCluster();

        String zkClusterKey = testUtil.getClusterKey(); // hostname:clientPort:parentZnode
        String zkQuorum = zkClusterKey.substring(0, zkClusterKey.lastIndexOf(':'));
        LOG.info("Zookeeper Quorum is running at {}", zkQuorum);
        conf.set(TxConstants.Service.CFG_DATA_TX_ZOOKEEPER_QUORUM, zkQuorum);

        Injector injector = Guice.createInjector(new ConfigModule(conf), new ZKModule(),
                new DiscoveryModules().getDistributedModules(),
                Modules.override(new TransactionModules().getDistributedModules()).with(new AbstractModule() {
                    @Override
                    protected void configure() {
                        bind(TransactionStateStorage.class).to(InMemoryTransactionStateStorage.class)
                                .in(Scopes.SINGLETON);
                    }
                }), new TransactionClientModule());

        zkClientService = injector.getInstance(ZKClientService.class);
        zkClientService.startAndWait();

        // start a tx server
        txService = injector.getInstance(TransactionService.class);
        try {
            LOG.info("Starting transaction service");
            txService.startAndWait();
        } catch (Exception e) {
            LOG.error("Failed to start service: ", e);
        }

    }

    @AfterClass
    public static void tearDown() throws Exception {
        if (txService != null) {
            txService.stopAndWait();
        }
        if (zkClientService != null) {
            zkClientService.stopAndWait();
        }
        testUtil.shutdownMiniCluster();
    }

    @Test
    public void testBalanceBooks() throws Exception {
        BalanceBooks bb = new BalanceBooks(5, 100, testUtil.getConfiguration());
        try {
            bb.init();
            bb.run();
            assertTrue(bb.verify());
        } finally {
            bb.close();
        }
    }
}