org.apache.hadoop.hbase.client.TestAsyncTable.java Source code

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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.hadoop.hbase.client;

import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;

import java.io.IOException;
import java.io.UncheckedIOException;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ForkJoinPool;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
import java.util.function.Supplier;
import java.util.stream.IntStream;

import org.apache.commons.io.IOUtils;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.testclassification.ClientTests;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.Pair;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.rules.TestName;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameter;
import org.junit.runners.Parameterized.Parameters;

@RunWith(Parameterized.class)
@Category({ MediumTests.class, ClientTests.class })
public class TestAsyncTable {

    private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();

    private static TableName TABLE_NAME = TableName.valueOf("async");

    private static byte[] FAMILY = Bytes.toBytes("cf");

    private static byte[] QUALIFIER = Bytes.toBytes("cq");

    private static byte[] VALUE = Bytes.toBytes("value");

    private static AsyncConnection ASYNC_CONN;

    @Rule
    public TestName testName = new TestName();

    private byte[] row;

    @Parameter
    public Supplier<AsyncTableBase> getTable;

    private static RawAsyncTable getRawTable() {
        return ASYNC_CONN.getRawTable(TABLE_NAME);
    }

    private static AsyncTable getTable() {
        return ASYNC_CONN.getTable(TABLE_NAME, ForkJoinPool.commonPool());
    }

    @Parameters
    public static List<Object[]> params() {
        return Arrays.asList(new Supplier<?>[] { TestAsyncTable::getRawTable },
                new Supplier<?>[] { TestAsyncTable::getTable });
    }

    @BeforeClass
    public static void setUpBeforeClass() throws Exception {
        TEST_UTIL.startMiniCluster(1);
        TEST_UTIL.createTable(TABLE_NAME, FAMILY);
        TEST_UTIL.waitTableAvailable(TABLE_NAME);
        ASYNC_CONN = ConnectionFactory.createAsyncConnection(TEST_UTIL.getConfiguration()).get();
    }

    @AfterClass
    public static void tearDownAfterClass() throws Exception {
        IOUtils.closeQuietly(ASYNC_CONN);
        TEST_UTIL.shutdownMiniCluster();
    }

    @Before
    public void setUp() throws IOException, InterruptedException {
        row = Bytes.toBytes(testName.getMethodName().replaceAll("[^0-9A-Za-z]", "_"));
    }

    @Test
    public void testSimple() throws Exception {
        AsyncTableBase table = getTable.get();
        table.put(new Put(row).addColumn(FAMILY, QUALIFIER, VALUE)).get();
        assertTrue(table.exists(new Get(row).addColumn(FAMILY, QUALIFIER)).get());
        Result result = table.get(new Get(row).addColumn(FAMILY, QUALIFIER)).get();
        assertArrayEquals(VALUE, result.getValue(FAMILY, QUALIFIER));
        table.delete(new Delete(row)).get();
        result = table.get(new Get(row).addColumn(FAMILY, QUALIFIER)).get();
        assertTrue(result.isEmpty());
        assertFalse(table.exists(new Get(row).addColumn(FAMILY, QUALIFIER)).get());
    }

    private byte[] concat(byte[] base, int index) {
        return Bytes.toBytes(Bytes.toString(base) + "-" + index);
    }

    @Test
    public void testSimpleMultiple() throws Exception {
        AsyncTableBase table = getTable.get();
        int count = 100;
        CountDownLatch putLatch = new CountDownLatch(count);
        IntStream.range(0, count)
                .forEach(i -> table.put(new Put(concat(row, i)).addColumn(FAMILY, QUALIFIER, concat(VALUE, i)))
                        .thenAccept(x -> putLatch.countDown()));
        putLatch.await();
        BlockingQueue<Boolean> existsResp = new ArrayBlockingQueue<>(count);
        IntStream.range(0, count).forEach(i -> table.exists(new Get(concat(row, i)).addColumn(FAMILY, QUALIFIER))
                .thenAccept(x -> existsResp.add(x)));
        for (int i = 0; i < count; i++) {
            assertTrue(existsResp.take());
        }
        BlockingQueue<Pair<Integer, Result>> getResp = new ArrayBlockingQueue<>(count);
        IntStream.range(0, count).forEach(i -> table.get(new Get(concat(row, i)).addColumn(FAMILY, QUALIFIER))
                .thenAccept(x -> getResp.add(Pair.newPair(i, x))));
        for (int i = 0; i < count; i++) {
            Pair<Integer, Result> pair = getResp.take();
            assertArrayEquals(concat(VALUE, pair.getFirst()), pair.getSecond().getValue(FAMILY, QUALIFIER));
        }
        CountDownLatch deleteLatch = new CountDownLatch(count);
        IntStream.range(0, count)
                .forEach(i -> table.delete(new Delete(concat(row, i))).thenAccept(x -> deleteLatch.countDown()));
        deleteLatch.await();
        IntStream.range(0, count).forEach(i -> table.exists(new Get(concat(row, i)).addColumn(FAMILY, QUALIFIER))
                .thenAccept(x -> existsResp.add(x)));
        for (int i = 0; i < count; i++) {
            assertFalse(existsResp.take());
        }
        IntStream.range(0, count).forEach(i -> table.get(new Get(concat(row, i)).addColumn(FAMILY, QUALIFIER))
                .thenAccept(x -> getResp.add(Pair.newPair(i, x))));
        for (int i = 0; i < count; i++) {
            Pair<Integer, Result> pair = getResp.take();
            assertTrue(pair.getSecond().isEmpty());
        }
    }

    @Test
    public void testIncrement() throws InterruptedException, ExecutionException {
        AsyncTableBase table = getTable.get();
        int count = 100;
        CountDownLatch latch = new CountDownLatch(count);
        AtomicLong sum = new AtomicLong(0L);
        IntStream.range(0, count)
                .forEach(i -> table.incrementColumnValue(row, FAMILY, QUALIFIER, 1).thenAccept(x -> {
                    sum.addAndGet(x);
                    latch.countDown();
                }));
        latch.await();
        assertEquals(count, Bytes
                .toLong(table.get(new Get(row).addColumn(FAMILY, QUALIFIER)).get().getValue(FAMILY, QUALIFIER)));
        assertEquals((1 + count) * count / 2, sum.get());
    }

    @Test
    public void testAppend() throws InterruptedException, ExecutionException {
        AsyncTableBase table = getTable.get();
        int count = 10;
        CountDownLatch latch = new CountDownLatch(count);
        char suffix = ':';
        AtomicLong suffixCount = new AtomicLong(0L);
        IntStream.range(0, count).forEachOrdered(i -> table
                .append(new Append(row).add(FAMILY, QUALIFIER, Bytes.toBytes("" + i + suffix))).thenAccept(r -> {
                    suffixCount.addAndGet(
                            Bytes.toString(r.getValue(FAMILY, QUALIFIER)).chars().filter(x -> x == suffix).count());
                    latch.countDown();
                }));
        latch.await();
        assertEquals((1 + count) * count / 2, suffixCount.get());
        String value = Bytes
                .toString(table.get(new Get(row).addColumn(FAMILY, QUALIFIER)).get().getValue(FAMILY, QUALIFIER));
        int[] actual = Arrays.asList(value.split("" + suffix)).stream().mapToInt(Integer::parseInt).sorted()
                .toArray();
        assertArrayEquals(IntStream.range(0, count).toArray(), actual);
    }

    @Test
    public void testCheckAndPut() throws InterruptedException, ExecutionException {
        AsyncTableBase table = getTable.get();
        AtomicInteger successCount = new AtomicInteger(0);
        AtomicInteger successIndex = new AtomicInteger(-1);
        int count = 10;
        CountDownLatch latch = new CountDownLatch(count);
        IntStream.range(0, count)
                .forEach(
                        i -> table
                                .checkAndPut(row, FAMILY, QUALIFIER, null,
                                        new Put(row).addColumn(FAMILY, QUALIFIER, concat(VALUE, i)))
                                .thenAccept(x -> {
                                    if (x) {
                                        successCount.incrementAndGet();
                                        successIndex.set(i);
                                    }
                                    latch.countDown();
                                }));
        latch.await();
        assertEquals(1, successCount.get());
        String actual = Bytes.toString(table.get(new Get(row)).get().getValue(FAMILY, QUALIFIER));
        assertTrue(actual.endsWith(Integer.toString(successIndex.get())));
    }

    @Test
    public void testCheckAndDelete() throws InterruptedException, ExecutionException {
        AsyncTableBase table = getTable.get();
        int count = 10;
        CountDownLatch putLatch = new CountDownLatch(count + 1);
        table.put(new Put(row).addColumn(FAMILY, QUALIFIER, VALUE)).thenRun(() -> putLatch.countDown());
        IntStream.range(0, count)
                .forEach(i -> table.put(new Put(row).addColumn(FAMILY, concat(QUALIFIER, i), VALUE))
                        .thenRun(() -> putLatch.countDown()));
        putLatch.await();

        AtomicInteger successCount = new AtomicInteger(0);
        AtomicInteger successIndex = new AtomicInteger(-1);
        CountDownLatch deleteLatch = new CountDownLatch(count);
        IntStream.range(0, count).forEach(i -> table
                .checkAndDelete(row, FAMILY, QUALIFIER, VALUE,
                        new Delete(row).addColumn(FAMILY, QUALIFIER).addColumn(FAMILY, concat(QUALIFIER, i)))
                .thenAccept(x -> {
                    if (x) {
                        successCount.incrementAndGet();
                        successIndex.set(i);
                    }
                    deleteLatch.countDown();
                }));
        deleteLatch.await();
        assertEquals(1, successCount.get());
        Result result = table.get(new Get(row)).get();
        IntStream.range(0, count).forEach(i -> {
            if (i == successIndex.get()) {
                assertFalse(result.containsColumn(FAMILY, concat(QUALIFIER, i)));
            } else {
                assertArrayEquals(VALUE, result.getValue(FAMILY, concat(QUALIFIER, i)));
            }
        });
    }

    @Test
    public void testMutateRow() throws InterruptedException, ExecutionException, IOException {
        AsyncTableBase table = getTable.get();
        RowMutations mutation = new RowMutations(row);
        mutation.add(new Put(row).addColumn(FAMILY, concat(QUALIFIER, 1), VALUE));
        table.mutateRow(mutation).get();
        Result result = table.get(new Get(row)).get();
        assertArrayEquals(VALUE, result.getValue(FAMILY, concat(QUALIFIER, 1)));

        mutation = new RowMutations(row);
        mutation.add(new Delete(row).addColumn(FAMILY, concat(QUALIFIER, 1)));
        mutation.add(new Put(row).addColumn(FAMILY, concat(QUALIFIER, 2), VALUE));
        table.mutateRow(mutation).get();
        result = table.get(new Get(row)).get();
        assertNull(result.getValue(FAMILY, concat(QUALIFIER, 1)));
        assertArrayEquals(VALUE, result.getValue(FAMILY, concat(QUALIFIER, 2)));
    }

    @Test
    public void testCheckAndMutate() throws InterruptedException, ExecutionException {
        AsyncTableBase table = getTable.get();
        int count = 10;
        CountDownLatch putLatch = new CountDownLatch(count + 1);
        table.put(new Put(row).addColumn(FAMILY, QUALIFIER, VALUE)).thenRun(() -> putLatch.countDown());
        IntStream.range(0, count)
                .forEach(i -> table.put(new Put(row).addColumn(FAMILY, concat(QUALIFIER, i), VALUE))
                        .thenRun(() -> putLatch.countDown()));
        putLatch.await();

        AtomicInteger successCount = new AtomicInteger(0);
        AtomicInteger successIndex = new AtomicInteger(-1);
        CountDownLatch mutateLatch = new CountDownLatch(count);
        IntStream.range(0, count).forEach(i -> {
            RowMutations mutation = new RowMutations(row);
            try {
                mutation.add(new Delete(row).addColumn(FAMILY, QUALIFIER));
                mutation.add(new Put(row).addColumn(FAMILY, concat(QUALIFIER, i), concat(VALUE, i)));
            } catch (IOException e) {
                throw new UncheckedIOException(e);
            }
            table.checkAndMutate(row, FAMILY, QUALIFIER, VALUE, mutation).thenAccept(x -> {
                if (x) {
                    successCount.incrementAndGet();
                    successIndex.set(i);
                }
                mutateLatch.countDown();
            });
        });
        mutateLatch.await();
        assertEquals(1, successCount.get());
        Result result = table.get(new Get(row)).get();
        IntStream.range(0, count).forEach(i -> {
            if (i == successIndex.get()) {
                assertArrayEquals(concat(VALUE, i), result.getValue(FAMILY, concat(QUALIFIER, i)));
            } else {
                assertArrayEquals(VALUE, result.getValue(FAMILY, concat(QUALIFIER, i)));
            }
        });
    }
}