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| 1 | +package tech.ydb.topic; |
| 2 | + |
| 3 | +import java.util.Iterator; |
| 4 | +import java.util.Queue; |
| 5 | +import java.util.concurrent.ConcurrentLinkedQueue; |
| 6 | +import java.util.concurrent.CountDownLatch; |
| 7 | +import java.util.concurrent.TimeUnit; |
| 8 | + |
| 9 | +import org.junit.AfterClass; |
| 10 | +import org.junit.Assert; |
| 11 | +import org.junit.BeforeClass; |
| 12 | +import org.junit.ClassRule; |
| 13 | +import org.junit.Rule; |
| 14 | +import org.junit.Test; |
| 15 | +import org.junit.rules.Timeout; |
| 16 | + |
| 17 | +import tech.ydb.core.Status; |
| 18 | +import tech.ydb.table.SessionRetryContext; |
| 19 | +import tech.ydb.table.TableClient; |
| 20 | +import tech.ydb.table.query.Params; |
| 21 | +import tech.ydb.table.transaction.TxControl; |
| 22 | +import tech.ydb.test.junit4.GrpcTransportRule; |
| 23 | +import tech.ydb.topic.read.AsyncReader; |
| 24 | +import tech.ydb.topic.read.events.DataReceivedEvent; |
| 25 | +import tech.ydb.topic.read.events.PartitionSessionClosedEvent; |
| 26 | +import tech.ydb.topic.read.events.ReadEventHandler; |
| 27 | +import tech.ydb.topic.read.events.ReaderClosedEvent; |
| 28 | +import tech.ydb.topic.read.events.StartPartitionSessionEvent; |
| 29 | +import tech.ydb.topic.read.events.StopPartitionSessionEvent; |
| 30 | +import tech.ydb.topic.read.impl.events.SessionStartedEvent; |
| 31 | +import tech.ydb.topic.settings.ReadEventHandlersSettings; |
| 32 | +import tech.ydb.topic.settings.ReaderSettings; |
| 33 | +import tech.ydb.topic.settings.TopicReadSettings; |
| 34 | + |
| 35 | +/** |
| 36 | + * |
| 37 | + * @author Aleksandr Gorshenin |
| 38 | + */ |
| 39 | +public class ChangefeedTopicTest { |
| 40 | + private final static String TEST_TABLE = "changefeed_table"; |
| 41 | + private final static String TEST_CHANGEFEED = "updates"; |
| 42 | + private final static String TEST_CONSUMER = "consumer"; |
| 43 | + |
| 44 | + @ClassRule |
| 45 | + public final static GrpcTransportRule ydbTransport = new GrpcTransportRule(); |
| 46 | + |
| 47 | + @Rule |
| 48 | + public final Timeout timeout = new Timeout(10, TimeUnit.SECONDS); |
| 49 | + |
| 50 | + private static TopicClient topicClient; |
| 51 | + private static TableClient tableClient; |
| 52 | + |
| 53 | + @BeforeClass |
| 54 | + public static void initClients() { |
| 55 | + tableClient = TableClient.newClient(ydbTransport).build(); |
| 56 | + topicClient = TopicClient.newClient(ydbTransport).build(); |
| 57 | + } |
| 58 | + |
| 59 | + @AfterClass |
| 60 | + public static void closeClients() { |
| 61 | + topicClient.close(); |
| 62 | + tableClient.close(); |
| 63 | + } |
| 64 | + |
| 65 | + private void prepareChangefeed() { |
| 66 | + SessionRetryContext retryCtx = SessionRetryContext.create(tableClient).build(); |
| 67 | + String tablePath = ydbTransport.getDatabase() + "/" + TEST_TABLE; |
| 68 | + String changefeedPath = tablePath + "/" + TEST_CHANGEFEED; |
| 69 | + |
| 70 | + retryCtx.supplyStatus(s -> s.executeSchemeQuery( |
| 71 | + "CREATE TABLE `" + tablePath + "` (" |
| 72 | + + "id Uint32, value Text, PRIMARY KEY (id)) " |
| 73 | + + "WITH (" |
| 74 | + + " AUTO_PARTITIONING_MIN_PARTITIONS_COUNT = 2, " |
| 75 | + + " PARTITION_AT_KEYS = (100));" |
| 76 | + )).join().expectSuccess("cannot create table"); |
| 77 | + |
| 78 | + retryCtx.supplyStatus(s -> s.executeSchemeQuery( |
| 79 | + "ALTER TABLE `" + tablePath + "` " |
| 80 | + + "ADD CHANGEFEED " + TEST_CHANGEFEED |
| 81 | + + " WITH (FORMAT = 'JSON', MODE = 'NEW_IMAGE', INITIAL_SCAN = true, VIRTUAL_TIMESTAMPS = true);" |
| 82 | + )).join().expectSuccess("cannot alter table"); |
| 83 | + |
| 84 | + retryCtx.supplyStatus(s -> s.executeSchemeQuery("" |
| 85 | + + "ALTER TOPIC `" + changefeedPath + "` ADD CONSUMER " + TEST_CONSUMER |
| 86 | + )).join().expectSuccess("cannot alter changefeed"); |
| 87 | + |
| 88 | + retryCtx.supplyResult(s -> s.executeDataQuery( |
| 89 | + "INSERT INTO `" + tablePath + "` (id, value) VALUES (1, '1'), (1000, '2');", |
| 90 | + TxControl.serializableRw(), Params.empty() |
| 91 | + )).join().getStatus().expectSuccess("cannot insert data"); |
| 92 | + } |
| 93 | + |
| 94 | + private Status dropChangefeed() { |
| 95 | + SessionRetryContext retryCtx = SessionRetryContext.create(tableClient).build(); |
| 96 | + return retryCtx.supplyStatus(s -> s.dropTable(ydbTransport.getDatabase() + "/" + TEST_TABLE)).join(); |
| 97 | + } |
| 98 | + |
| 99 | + @Test |
| 100 | + public void changefeedReadTest() throws Exception { |
| 101 | + prepareChangefeed(); |
| 102 | + |
| 103 | + String changefeedPath = ydbTransport.getDatabase() + "/" + TEST_TABLE + "/" + TEST_CHANGEFEED; |
| 104 | + ReaderSettings rs = ReaderSettings.newBuilder() |
| 105 | + .addTopic(TopicReadSettings.newBuilder().setPath(changefeedPath).build()) |
| 106 | + .setConsumerName(TEST_CONSUMER) |
| 107 | + .build(); |
| 108 | + |
| 109 | + TestHandler handler1 = new TestHandler(2, 1); |
| 110 | + AsyncReader reader1 = topicClient.createAsyncReader(rs, ReadEventHandlersSettings.newBuilder() |
| 111 | + .setEventHandler(handler1).build()); |
| 112 | + |
| 113 | + reader1.init().join(); |
| 114 | + handler1.waitData(); |
| 115 | + handler1.assertEvents("INIT", "START", "START", "DATA1", "DATA1"); |
| 116 | + |
| 117 | + TestHandler handler2 = new TestHandler(1, 1); |
| 118 | + AsyncReader reader2 = topicClient.createAsyncReader(rs, ReadEventHandlersSettings.newBuilder() |
| 119 | + .setEventHandler(handler2).build()); |
| 120 | + |
| 121 | + reader2.init().join(); |
| 122 | + handler2.waitData(); |
| 123 | + |
| 124 | + handler1.assertEvents("INIT", "START", "START", "DATA1", "DATA1", "STOP"); |
| 125 | + handler2.assertEvents("INIT", "START", "DATA1"); |
| 126 | + |
| 127 | + dropChangefeed().expectSuccess("cannot drop changefeed"); |
| 128 | + |
| 129 | + handler1.waitClosed(); |
| 130 | + handler1.assertEvents("INIT", "START", "START", "DATA1", "DATA1", "STOP", "CLOSED"); |
| 131 | + |
| 132 | + handler2.waitClosed(); |
| 133 | + handler2.assertEvents("INIT", "START", "DATA1", "CLOSED"); |
| 134 | + |
| 135 | + reader1.shutdown().join(); |
| 136 | + handler1.assertEvents("INIT", "START", "START", "DATA1", "DATA1", "STOP", "CLOSED", "READER CLOSED"); |
| 137 | + |
| 138 | + reader2.shutdown().join(); |
| 139 | + handler2.assertEvents("INIT", "START", "DATA1", "CLOSED", "READER CLOSED"); |
| 140 | + } |
| 141 | + |
| 142 | + private static class TestHandler implements ReadEventHandler { |
| 143 | + private final CountDownLatch dataLatch; |
| 144 | + private final CountDownLatch closedLatch; |
| 145 | + private final Queue<String> events = new ConcurrentLinkedQueue<>(); |
| 146 | + |
| 147 | + public TestHandler(int expectedData, int expectedClosed) { |
| 148 | + this.dataLatch = new CountDownLatch(expectedData); |
| 149 | + this.closedLatch = new CountDownLatch(expectedClosed); |
| 150 | + } |
| 151 | + |
| 152 | + public void assertEvents(String... expected) { |
| 153 | + Iterator<String> it = events.iterator(); |
| 154 | + for (String ex : expected) { |
| 155 | + Assert.assertTrue("Expected " + ex + " but have nothing", it.hasNext()); |
| 156 | + Assert.assertEquals(ex, it.next()); |
| 157 | + } |
| 158 | + } |
| 159 | + |
| 160 | + public void waitData() throws InterruptedException { |
| 161 | + Assert.assertTrue("Timed out waiting for data events", dataLatch.await(1, TimeUnit.MINUTES)); |
| 162 | + } |
| 163 | + |
| 164 | + public void waitClosed() throws InterruptedException { |
| 165 | + Assert.assertTrue("Timed out waiting for closed events", closedLatch.await(1, TimeUnit.MINUTES)); |
| 166 | + } |
| 167 | + |
| 168 | + @Override |
| 169 | + public void onMessages(DataReceivedEvent dre) { |
| 170 | + events.add("DATA" + dre.getMessages().size()); |
| 171 | + dataLatch.countDown(); |
| 172 | + } |
| 173 | + |
| 174 | + @Override |
| 175 | + public void onSessionStarted(SessionStartedEvent event) { |
| 176 | + events.add("INIT"); |
| 177 | + } |
| 178 | + |
| 179 | + @Override |
| 180 | + public void onStartPartitionSession(StartPartitionSessionEvent event) { |
| 181 | + events.add("START"); |
| 182 | + event.confirm(); |
| 183 | + } |
| 184 | + |
| 185 | + @Override |
| 186 | + public void onStopPartitionSession(StopPartitionSessionEvent event) { |
| 187 | + events.add("STOP"); |
| 188 | + event.confirm(); |
| 189 | + } |
| 190 | + |
| 191 | + @Override |
| 192 | + public void onPartitionSessionClosed(PartitionSessionClosedEvent event) { |
| 193 | + events.add("CLOSED"); |
| 194 | + closedLatch.countDown(); |
| 195 | + } |
| 196 | + |
| 197 | + @Override |
| 198 | + public void onReaderClosed(ReaderClosedEvent event) { |
| 199 | + events.add("READER CLOSED"); |
| 200 | + } |
| 201 | + } |
| 202 | +} |
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