com.torodb.testing.mongodb.docker.ShardedClusterContract.java Source code

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Here is the source code for com.torodb.testing.mongodb.docker.ShardedClusterContract.java

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/*
 * Copyright 2017 8Kdata Technology
 *
 * 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.torodb.testing.mongodb.docker;

import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import org.apache.logging.log4j.Logger;
import org.bson.Document;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

import java.util.function.IntFunction;
import java.util.stream.IntStream;

public interface ShardedClusterContract {

    Logger getLogger();

    ShardedCluster getShardedCluster(ShardedClusterConfig config);

    @Test
    default void startAndStop() {

        try (ShardedCluster cluster = getShardedCluster(smallShardedClusterConfig())) {
            getLogger().debug("Starting cluster...");
            cluster.startAsync();
            cluster.awaitRunning();

            getLogger().debug("Cluster has been started");
            getLogger().debug("Configuring cluster");

            cluster.enableSharding("testDb");
            cluster.shardCollection("testDb", "testCol");
            cluster.setChunckSize(1);

            getLogger().debug("Sharding has been configured");

            getLogger().debug("Inserting documents");

            int docsToInsert = 10_000;

            MongoDatabase db = cluster.getClient().getDatabase("testDb");
            MongoCollection<Document> col = db.getCollection("testCol");
            for (int i = 0; i < docsToInsert; i++) {
                col.insertOne(new Document());
            }

            getLogger().debug("Documents have been inserted");

            Assertions.assertEquals(docsToInsert, col.count());
        }
    }

    public default ShardedClusterConfig smallShardedClusterConfig() {

        IntFunction<ReplicaSetConfig> replConfigFactory = i -> ReplicaSetConfig.builder("rs" + i)
                .addSecondary(EnumVersion.LATEST).build();

        ShardedClusterConfig.Builder builder = ShardedClusterConfig.builder().setConfigRs(1, EnumVersion.LATEST, 50)
                .setRouter(1, EnumVersion.LATEST);

        IntStream.range(0, 3).mapToObj(replConfigFactory).forEach(builder::addShard);

        return builder.build();
    }

}