org.apache.whirr.service.cassandra.integration.CassandraServiceTest.java Source code

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/**
 * 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.whirr.service.cassandra.integration;

import com.google.common.collect.Sets;
import org.apache.cassandra.thrift.Cassandra;
import org.apache.commons.configuration.CompositeConfiguration;
import org.apache.commons.configuration.PropertiesConfiguration;
import org.apache.thrift.TException;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.transport.TFramedTransport;
import org.apache.thrift.transport.TSocket;
import org.apache.thrift.transport.TTransport;
import org.apache.whirr.Cluster;
import org.apache.whirr.Cluster.Instance;
import org.apache.whirr.ClusterController;
import org.apache.whirr.ClusterSpec;
import org.apache.whirr.TestConstants;
import org.apache.whirr.service.cassandra.CassandraClusterActionHandler;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.Set;

import static org.junit.Assert.assertTrue;

public class CassandraServiceTest {

    private static final Logger LOG = LoggerFactory.getLogger(CassandraServiceTest.class);

    private ClusterSpec clusterSpec;
    private ClusterController controller;
    private Cluster cluster;

    @Before
    public void setUp() throws Exception {
        CompositeConfiguration config = new CompositeConfiguration();
        if (System.getProperty("config") != null) {
            config.addConfiguration(new PropertiesConfiguration(System.getProperty("config")));
        }
        config.addConfiguration(new PropertiesConfiguration("whirr-cassandra-test.properties"));
        clusterSpec = ClusterSpec.withTemporaryKeys(config);

        controller = new ClusterController();
        cluster = controller.launchCluster(clusterSpec);

        waitForCassandra();
    }

    private Cassandra.Client client(Instance instance) throws TException {
        TTransport trans = new TFramedTransport(
                new TSocket(instance.getPublicIp(), CassandraClusterActionHandler.CLIENT_PORT));
        trans.open();
        TBinaryProtocol protocol = new TBinaryProtocol(trans);
        return new Cassandra.Client(protocol);
    }

    private void waitForCassandra() {
        LOG.info("Waiting for Cassandra to start");
        for (Instance instance : cluster.getInstances()) {
            int tries = 0;
            while (tries < 30) {
                try {
                    Cassandra.Client client = client(instance);
                    client.describe_cluster_name();
                    client.getOutputProtocol().getTransport().close();
                    LOG.info(instance.getPublicIp() + " is up and running");
                    break;

                } catch (TException e) {
                    try {
                        LOG.warn(instance.getPublicIp() + " not reachable, try #" + tries + ", waiting 1s");
                        Thread.sleep(10000);
                    } catch (InterruptedException e1) {
                        break;
                    }
                    tries += 1;
                }
            }
            if (tries == 10) {
                LOG.error("Instance " + instance.getPublicIp() + " is still unavailable after 10 retries");
            }
        }
    }

    @Test(timeout = TestConstants.ITEST_TIMEOUT)
    public void testInstances() throws Exception {
        Set<String> endPoints = Sets.newLinkedHashSet();
        for (Instance instance : cluster.getInstances()) {
            Cassandra.Client client = client(instance);
            Map<String, List<String>> tr = client.describe_schema_versions();
            for (List<String> version : tr.values()) {
                endPoints.addAll(version);
            }
            client.getOutputProtocol().getTransport().close();
        }
        LOG.info("List of endpoints: " + endPoints);

        for (Instance instance : cluster.getInstances()) {
            String address = instance.getPrivateAddress().getHostAddress();
            assertTrue(address + " not in cluster!", endPoints.remove(address));
        }
        assertTrue("Unknown node returned: " + endPoints.toString(), endPoints.isEmpty());
    }

    @After
    public void tearDown() throws IOException, InterruptedException {
        if (controller != null) {
            controller.destroyCluster(clusterSpec);
        }
    }

}