co.cask.tephra.TransactionServiceMainTest.java Source code

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Here is the source code for co.cask.tephra.TransactionServiceMainTest.java

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/*
 * Copyright  2014 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;

import co.cask.tephra.distributed.TransactionServiceClient;
import com.google.common.base.Throwables;
import org.apache.hadoop.conf.Configuration;
import org.apache.twill.internal.zookeeper.InMemoryZKServer;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;

import java.util.concurrent.CountDownLatch;

/**
 * Test for verifying TransactionServiceMain works correctly.
 */
public class TransactionServiceMainTest {

    @ClassRule
    public static TemporaryFolder tmpFolder = new TemporaryFolder();

    @Test
    public void testClientServer() throws Exception {
        // Simply start a transaction server and connect to it with the client.
        InMemoryZKServer zkServer = InMemoryZKServer.builder().setDataDir(tmpFolder.newFolder()).build();
        zkServer.startAndWait();

        try {
            Configuration conf = new Configuration();
            conf.set(TxConstants.Service.CFG_DATA_TX_ZOOKEEPER_QUORUM, zkServer.getConnectionStr());
            conf.set(TxConstants.Manager.CFG_TX_SNAPSHOT_DIR, tmpFolder.newFolder().getAbsolutePath());

            final TransactionServiceMain main = new TransactionServiceMain(conf);
            final CountDownLatch latch = new CountDownLatch(1);
            Thread t = new Thread() {
                @Override
                public void run() {
                    try {
                        main.start();
                        latch.countDown();
                    } catch (Exception e) {
                        throw Throwables.propagate(e);
                    }
                }
            };

            try {
                t.start();
                // Wait for service to startup
                latch.await();
                TransactionServiceClient.doMain(true, conf);
            } finally {
                main.stop();
                t.join();
            }
        } finally {
            zkServer.stopAndWait();
        }
    }
}