org.apache.james.backends.es.ElasticSearchConfigurationTest.java Source code

Introduction

Here is the source code for org.apache.james.backends.es.ElasticSearchConfigurationTest.java

Source

/*
 * 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.james.backends.es;

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatThrownBy;

import java.util.Optional;

import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.PropertiesConfiguration;
import org.apache.james.util.Host;
import org.junit.Test;

import com.google.common.collect.ImmutableList;

public class ElasticSearchConfigurationTest {

    @Test
    public void getNbReplicaShouldReturnConfiguredValue() throws ConfigurationException {
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        int value = 36;
        configuration.addProperty("elasticsearch.nb.replica", value);
        configuration.addProperty("elasticsearch.hosts", "127.0.0.1");

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getNbReplica()).isEqualTo(value);
    }

    @Test
    public void getNbReplicaShouldReturnDefaultValueWhenMissing() throws ConfigurationException {
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        configuration.addProperty("elasticsearch.hosts", "127.0.0.1");

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getNbReplica())
                .isEqualTo(ElasticSearchConfiguration.DEFAULT_NB_REPLICA);
    }

    @Test
    public void getNbShardsShouldReturnConfiguredValue() throws ConfigurationException {
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        int value = 36;
        configuration.addProperty("elasticsearch.nb.shards", value);
        configuration.addProperty("elasticsearch.hosts", "127.0.0.1");

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getNbShards()).isEqualTo(value);
    }

    @Test
    public void getNbShardsShouldReturnDefaultValueWhenMissing() throws ConfigurationException {
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        configuration.addProperty("elasticsearch.hosts", "127.0.0.1");

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getNbShards())
                .isEqualTo(ElasticSearchConfiguration.DEFAULT_NB_SHARDS);
    }

    @Test
    public void getMaxRetriesShouldReturnConfiguredValue() throws ConfigurationException {
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        int value = 36;
        configuration.addProperty("elasticsearch.retryConnection.maxRetries", value);
        configuration.addProperty("elasticsearch.hosts", "127.0.0.1");

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getMaxRetries()).isEqualTo(value);
    }

    @Test
    public void getMaxRetriesShouldReturnDefaultValueWhenMissing() throws ConfigurationException {
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        configuration.addProperty("elasticsearch.hosts", "127.0.0.1");

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getMaxRetries())
                .isEqualTo(ElasticSearchConfiguration.DEFAULT_CONNECTION_MAX_RETRIES);
    }

    @Test
    public void getMinDelayShouldReturnConfiguredValue() throws ConfigurationException {
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        int value = 36;
        configuration.addProperty("elasticsearch.retryConnection.minDelay", value);
        configuration.addProperty("elasticsearch.hosts", "127.0.0.1");

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getMinDelay()).isEqualTo(value);
    }

    @Test
    public void getMinDelayShouldReturnDefaultValueWhenMissing() throws ConfigurationException {
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        configuration.addProperty("elasticsearch.hosts", "127.0.0.1");

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getMinDelay())
                .isEqualTo(ElasticSearchConfiguration.DEFAULT_CONNECTION_MIN_DELAY);
    }

    @Test
    public void getHostsShouldReturnConfiguredHostsWhenNoPort() throws ConfigurationException {
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        String hostname = "myHost";
        configuration.addProperty("elasticsearch.hosts", hostname);

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getHosts())
                .containsOnly(Host.from(hostname, ElasticSearchConfiguration.DEFAULT_PORT));
    }

    @Test
    public void getHostsShouldReturnConfiguredHostsWhenListIsUsed() throws ConfigurationException {
        String hostname = "myHost";
        String hostname2 = "myOtherHost";
        int port = 2154;
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        configuration.addProperty("elasticsearch.hosts", hostname + "," + hostname2 + ":" + port);

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getHosts()).containsOnly(
                Host.from(hostname, ElasticSearchConfiguration.DEFAULT_PORT), Host.from(hostname2, port));
    }

    @Test
    public void getHostsShouldReturnConfiguredHosts() throws ConfigurationException {
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        String hostname = "myHost";
        int port = 2154;
        configuration.addProperty("elasticsearch.hosts", hostname + ":" + port);

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getHosts()).containsOnly(Host.from(hostname, port));
    }

    @Test
    public void getHostsShouldReturnConfiguredMasterHost() throws ConfigurationException {
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        String hostname = "myHost";
        configuration.addProperty("elasticsearch.masterHost", hostname);
        int port = 9300;
        configuration.addProperty("elasticsearch.port", port);

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getHosts()).containsOnly(Host.from(hostname, port));
    }

    @Test
    public void clusterNameShouldBeEmptyWhenNotGiven() throws ConfigurationException {
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        String hostname = "myHost";
        configuration.addProperty("elasticsearch.masterHost", hostname);
        int port = 9300;
        configuration.addProperty("elasticsearch.port", port);

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getClusterName()).isEmpty();
    }

    @Test
    public void clusterNameShouldBeEmptyWhenNull() throws ConfigurationException {
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        String hostname = "myHost";
        configuration.addProperty("elasticsearch.masterHost", hostname);
        int port = 9300;
        configuration.addProperty("elasticsearch.port", port);
        configuration.addProperty("elasticsearch.clusterName", null);

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getClusterName()).isEmpty();
    }

    @Test
    public void clusterNameShouldKeepTheValueWhenGiven() throws ConfigurationException {
        PropertiesConfiguration configuration = new PropertiesConfiguration();
        String hostname = "myHost";
        configuration.addProperty("elasticsearch.masterHost", hostname);
        int port = 9300;
        configuration.addProperty("elasticsearch.port", port);
        String clusterName = "myClusterName";
        configuration.addProperty("elasticsearch.clusterName", clusterName);

        ElasticSearchConfiguration elasticSearchConfiguration = ElasticSearchConfiguration
                .fromProperties(configuration);

        assertThat(elasticSearchConfiguration.getClusterName()).contains(clusterName);
    }

    @Test
    public void validateHostsConfigurationOptionsShouldThrowWhenNoHostSpecify() {
        assertThatThrownBy(() -> ElasticSearchConfiguration.validateHostsConfigurationOptions(Optional.empty(),
                Optional.empty(), ImmutableList.of())).isInstanceOf(ConfigurationException.class).hasMessage(
                        "You should specify either (" + ElasticSearchConfiguration.ELASTICSEARCH_MASTER_HOST
                                + " and " + ElasticSearchConfiguration.ELASTICSEARCH_PORT + ") or "
                                + ElasticSearchConfiguration.ELASTICSEARCH_HOSTS);
    }

    @Test
    public void validateHostsConfigurationOptionsShouldThrowWhenMonoAndMultiHostSpecified() {
        assertThatThrownBy(() -> ElasticSearchConfiguration.validateHostsConfigurationOptions(
                Optional.of("localhost"), Optional.of(9200), ImmutableList.of("localhost:9200")))
                        .isInstanceOf(ConfigurationException.class)
                        .hasMessage("You should choose between mono host set up and "
                                + ElasticSearchConfiguration.ELASTICSEARCH_HOSTS);
    }

    @Test
    public void validateHostsConfigurationOptionsShouldThrowWhenMonoHostWithoutPort() {
        assertThatThrownBy(() -> ElasticSearchConfiguration
                .validateHostsConfigurationOptions(Optional.of("localhost"), Optional.empty(), ImmutableList.of()))
                        .isInstanceOf(ConfigurationException.class)
                        .hasMessage(ElasticSearchConfiguration.ELASTICSEARCH_MASTER_HOST + " and "
                                + ElasticSearchConfiguration.ELASTICSEARCH_PORT + " should be specified together");
    }

    @Test
    public void validateHostsConfigurationOptionsShouldThrowWhenMonoHostWithoutAddress() {
        assertThatThrownBy(() -> ElasticSearchConfiguration.validateHostsConfigurationOptions(Optional.empty(),
                Optional.of(9200), ImmutableList.of())).isInstanceOf(ConfigurationException.class)
                        .hasMessage(ElasticSearchConfiguration.ELASTICSEARCH_MASTER_HOST + " and "
                                + ElasticSearchConfiguration.ELASTICSEARCH_PORT + " should be specified together");
    }

    @Test
    public void validateHostsConfigurationOptionsShouldAcceptMonoHostConfiguration() throws Exception {
        ElasticSearchConfiguration.validateHostsConfigurationOptions(Optional.of("localhost"), Optional.of(9200),
                ImmutableList.of());
    }

    @Test
    public void validateHostsConfigurationOptionsShouldAcceptMultiHostConfiguration() throws Exception {
        ElasticSearchConfiguration.validateHostsConfigurationOptions(Optional.empty(), Optional.empty(),
                ImmutableList.of("localhost:9200"));
    }

    @Test
    public void nbReplicaShouldThrowWhenNegative() {
        assertThatThrownBy(() -> ElasticSearchConfiguration.builder().nbReplica(-1))
                .isInstanceOf(IllegalArgumentException.class);
    }

    @Test
    public void nbShardsShouldThrowWhenNegative() {
        assertThatThrownBy(() -> ElasticSearchConfiguration.builder().nbShards(-1))
                .isInstanceOf(IllegalArgumentException.class);
    }

    @Test
    public void nbShardsShouldThrowWhenZero() {
        assertThatThrownBy(() -> ElasticSearchConfiguration.builder().nbShards(0))
                .isInstanceOf(IllegalArgumentException.class);
    }
}