org.apache.drill.jdbc.test.JdbcTestQueryBase.java Source code

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Here is the source code for org.apache.drill.jdbc.test.JdbcTestQueryBase.java

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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.drill.jdbc.test;

import com.google.common.base.Stopwatch;
import org.apache.commons.io.FileUtils;
import org.apache.drill.common.util.TestTools;
import org.apache.drill.exec.store.hive.HiveTestDataGenerator;
import org.apache.drill.jdbc.Driver;
import org.apache.drill.jdbc.JdbcTest;
import org.junit.BeforeClass;
import org.junit.Rule;
import org.junit.rules.TestRule;

import java.io.File;
import java.nio.file.Paths;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.Statement;
import java.util.concurrent.TimeUnit;

public class JdbcTestQueryBase extends JdbcTest {
    // Set a timeout unless we're debugging.
    @Rule
    public TestRule TIMEOUT = TestTools.getTimeoutRule(40000);

    protected static final String WORKING_PATH;
    static {
        Driver.load();
        WORKING_PATH = Paths.get("").toAbsolutePath().toString();

    }

    protected void testQuery(String sql) throws Exception {
        boolean success = false;
        try (Connection c = DriverManager.getConnection("jdbc:drill:zk=local", null);) {
            for (int x = 0; x < 1; x++) {
                Stopwatch watch = new Stopwatch().start();
                Statement s = c.createStatement();
                ResultSet r = s.executeQuery(sql);
                boolean first = true;
                while (r.next()) {
                    ResultSetMetaData md = r.getMetaData();
                    if (first == true) {
                        for (int i = 1; i <= md.getColumnCount(); i++) {
                            System.out.print(md.getColumnName(i));
                            System.out.print('\t');
                        }
                        System.out.println();
                        first = false;
                    }

                    for (int i = 1; i <= md.getColumnCount(); i++) {
                        System.out.print(r.getObject(i));
                        System.out.print('\t');
                    }
                    System.out.println();
                }

                System.out.println(
                        String.format("Query completed in %d millis.", watch.elapsed(TimeUnit.MILLISECONDS)));
            }

            System.out.println("\n\n\n");
            success = true;
        } finally {
            if (!success)
                Thread.sleep(2000);
        }
    }
}