com.comcast.viper.flume2storm.location.SimpleStaticLocationServiceTest.java Source code

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Here is the source code for com.comcast.viper.flume2storm.location.SimpleStaticLocationServiceTest.java

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/**
 * Copyright 2014 Comcast Cable Communications Management, LLC
 *
 * 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 com.comcast.viper.flume2storm.location;

import static com.comcast.viper.flume2storm.connection.parameters.SimpleConnectionParameters.HOSTNAME;
import static com.comcast.viper.flume2storm.connection.parameters.SimpleConnectionParameters.PORT;
import static com.comcast.viper.flume2storm.location.StaticLocationServiceConfiguration.SERVICE_PROVIDER_BASE;
import static com.comcast.viper.flume2storm.location.StaticLocationServiceConfiguration.SERVICE_PROVIDER_BASE_DEFAULT;
import static com.comcast.viper.flume2storm.location.StaticLocationServiceConfiguration.SERVICE_PROVIDER_LIST;
import static org.assertj.core.api.Assertions.assertThat;

import java.util.Collection;

import org.apache.commons.configuration.BaseConfiguration;
import org.apache.commons.configuration.Configuration;
import org.apache.commons.lang3.StringUtils;
import org.junit.Before;
import org.junit.Test;

import com.comcast.viper.flume2storm.F2SConfigurationException;
import com.comcast.viper.flume2storm.connection.parameters.SimpleConnectionParameters;

/**
 * Test the {@link StaticLocationService}
 */
public class SimpleStaticLocationServiceTest {
    private static final String SP1 = "quick";
    private static final SimpleConnectionParameters CP1 = new SimpleConnectionParameters("machine1.mydomain.com",
            1000);
    private static final String SP2 = "brown";
    private static final SimpleConnectionParameters CP2 = new SimpleConnectionParameters("localhost", 1000);
    private static final String SP3 = "fox";
    private static final SimpleConnectionParameters CP3 = new SimpleConnectionParameters("machine2.mydomain.com",
            1001);
    private static final String SIMPLE_SERVICE_PROVIDER_BASE = "simple.service.providers";

    private Configuration configuration;

    private static String buildPName(String... elements) {
        return StringUtils.join(elements, ".");
    }

    /**
     * Loads the {@link StaticLocationService} configuration file
     */
    @Before
    public void init() {
        configuration = new BaseConfiguration();
        // List of service providers to load
        configuration.addProperty(SERVICE_PROVIDER_LIST, StringUtils.join(new String[] { SP1, SP2 }, " "));

        // First service provider
        configuration.addProperty(buildPName(SERVICE_PROVIDER_BASE_DEFAULT, SP1, HOSTNAME), CP1.getHostname());
        configuration.addProperty(buildPName(SERVICE_PROVIDER_BASE_DEFAULT, SP1, PORT), CP1.getPort());

        // Second service provider
        configuration.addProperty(buildPName(SERVICE_PROVIDER_BASE_DEFAULT, SP2, HOSTNAME), CP2.getHostname());
        configuration.addProperty(buildPName(SERVICE_PROVIDER_BASE_DEFAULT, SP2, PORT), CP2.getPort());

        // Third service provider
        configuration.addProperty(buildPName(SIMPLE_SERVICE_PROVIDER_BASE, SP3, HOSTNAME), CP3.getHostname());
        configuration.addProperty(buildPName(SIMPLE_SERVICE_PROVIDER_BASE, SP3, PORT), CP3.getPort());

        configuration.addProperty("some.other.variable", "whatever");
    }

    /**
     * Test a configuration missing the {@link ServiceProviderConfigurationLoader}
     * attribute
     * 
     * @throws F2SConfigurationException
     *           If the configuration is invalid
     */
    @Test(expected = F2SConfigurationException.class)
    @SuppressWarnings("unused")
    public void testInvalidConfiguration() throws F2SConfigurationException {
        new SimpleStaticLocationService(configuration);
    }

    /**
     * Test a configuration using the default
     * {@link StaticLocationServiceConfiguration#SERVICE_PROVIDER_BASE}
     * 
     * @throws F2SConfigurationException
     *           If the configuration is invalid
     */
    @Test
    public void testBaseConfiguration() throws F2SConfigurationException {
        // Adding Service provider loader
        configuration.addProperty(StaticLocationServiceConfiguration.CONFIGURATION_LOADER_CLASS,
                SimpleServiceProviderConfigurationLoader.class.getName());

        // Loading static location service
        SimpleStaticLocationService ssLocationService = new SimpleStaticLocationService(configuration);

        Collection<SimpleServiceProvider> serviceProviders = ssLocationService.getServiceProviders();
        assertThat(serviceProviders).hasSize(2);
        assertThat(serviceProviders).contains(new SimpleServiceProvider(CP1), new SimpleServiceProvider(CP2));
    }

    /**
     * Test a configuration using a specific
     * {@link StaticLocationServiceConfiguration#SERVICE_PROVIDER_BASE}
     * 
     * @throws F2SConfigurationException
     *           If the configuration is invalid
     */
    @Test
    public void testWithSimpleBase() throws F2SConfigurationException {
        // Adding Service provider loader
        configuration.addProperty(StaticLocationServiceConfiguration.CONFIGURATION_LOADER_CLASS,
                SimpleServiceProviderConfigurationLoader.class.getName());
        // Changing service provider base
        configuration.addProperty(SERVICE_PROVIDER_BASE, SIMPLE_SERVICE_PROVIDER_BASE);
        // Changing list of service providers
        configuration.clearProperty(SERVICE_PROVIDER_LIST);
        configuration.addProperty(SERVICE_PROVIDER_LIST, SP3);

        // Loading static location service
        SimpleStaticLocationService ssLocationService = new SimpleStaticLocationService(configuration);

        Collection<SimpleServiceProvider> serviceProviders = ssLocationService.getServiceProviders();
        assertThat(serviceProviders).hasSize(1);
        assertThat(serviceProviders).contains(new SimpleServiceProvider(CP3));
    }
}