Package com.facebook.presto.hive

Source Code of com.facebook.presto.hive.TestHiveDistributedQueries

/*
* 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.facebook.presto.hive;

import com.facebook.presto.hive.metastore.InMemoryHiveMetastore;
import com.facebook.presto.metadata.QualifiedTableName;
import com.facebook.presto.spi.ConnectorSession;
import com.facebook.presto.testing.QueryRunner;
import com.facebook.presto.tests.AbstractTestDistributedQueries;
import com.facebook.presto.tests.DistributedQueryRunner;
import com.facebook.presto.tpch.TpchMetadata;
import com.facebook.presto.tpch.TpchPlugin;
import com.facebook.presto.tpch.testing.SampledTpchPlugin;
import com.google.common.collect.ImmutableMap;
import io.airlift.log.Logger;
import org.apache.hadoop.hive.metastore.api.Database;
import org.intellij.lang.annotations.Language;
import org.testng.annotations.AfterClass;

import java.io.File;
import java.util.Map;

import static com.facebook.presto.spi.type.TimeZoneKey.UTC_KEY;
import static com.facebook.presto.util.Types.checkType;
import static io.airlift.units.Duration.nanosSince;
import static java.lang.String.format;
import static java.util.Locale.ENGLISH;
import static java.util.concurrent.TimeUnit.SECONDS;

public class TestHiveDistributedQueries
        extends AbstractTestDistributedQueries
{
    private static final Logger log = Logger.get("TestQueries");

    public TestHiveDistributedQueries()
            throws Exception
    {
        super(createQueryRunner(), createSession("tpch_sampled"));
    }

    @AfterClass(alwaysRun = true)
    public void destroy()
    {
        queryRunner.close();
    }

    private static QueryRunner createQueryRunner()
            throws Exception
    {
        DistributedQueryRunner queryRunner = new DistributedQueryRunner(createSession("tpch"), 4);

        try {
            queryRunner.installPlugin(new TpchPlugin());
            queryRunner.createCatalog("tpch", "tpch");

            queryRunner.installPlugin(new SampledTpchPlugin());
            queryRunner.createCatalog("tpch_sampled", "tpch_sampled");

            File baseDir = queryRunner.getCoordinator().getBaseDataDir().toFile();
            InMemoryHiveMetastore metastore = new InMemoryHiveMetastore();
            metastore.createDatabase(new Database("tpch", null, new File(baseDir, "tpch").toURI().toString(), null));
            metastore.createDatabase(new Database("tpch_sampled", null, new File(baseDir, "tpch_sampled").toURI().toString(), null));

            queryRunner.installPlugin(new HivePlugin("hive", metastore));
            Map<String, String> hiveProperties = ImmutableMap.<String, String>builder()
                    .put("hive.metastore.uri", "thrift://localhost:8080")
                    .put("hive.allow-drop-table", "true")
                    .build();
            queryRunner.createCatalog("hive", "hive", hiveProperties);

            log.info("Loading data...");
            long startTime = System.nanoTime();
            distributeData(queryRunner, "tpch", TpchMetadata.TINY_SCHEMA_NAME, createSession("tpch"));
            distributeData(queryRunner, "tpch_sampled", TpchMetadata.TINY_SCHEMA_NAME, createSession("tpch_sampled"));
            log.info("Loading complete in %s", nanosSince(startTime).toString(SECONDS));

            return queryRunner;
        }
        catch (Exception e) {
            queryRunner.close();
            throw e;
        }
    }

    private static void distributeData(QueryRunner queryRunner, String catalog, String schema, ConnectorSession session)
            throws Exception
    {
        for (QualifiedTableName table : queryRunner.listTables(session, catalog, schema)) {
            if (table.getTableName().equalsIgnoreCase("dual")) {
                continue;
            }
            log.info("Running import for %s", table.getTableName());
            @Language("SQL") String sql = format("CREATE TABLE %s AS SELECT * FROM %s", table.getTableName(), table);
            long rows = checkType(queryRunner.execute(session, sql).getMaterializedRows().get(0).getField(0), Long.class, "rows");
            log.info("Imported %s rows for %s", rows, table.getTableName());
        }
    }

    private static ConnectorSession createSession(String schema)
    {
        return new ConnectorSession("user", "test", "hive", schema, UTC_KEY, ENGLISH, null, null);
    }
}
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