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Jianyun Zhao
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...src/test/java/org/apache/flink/streaming/connectors/pulsar/PulsarSinkExactlyOnceTest.java
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| /* | ||
| * 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 org.apache.flink.streaming.connectors.pulsar; | ||
|
|
||
| import org.apache.flink.api.common.serialization.SimpleStringSchema; | ||
| import org.apache.flink.api.common.typeutils.base.StringSerializer; | ||
| import org.apache.flink.runtime.checkpoint.OperatorSubtaskState; | ||
| import org.apache.flink.streaming.api.operators.StreamSink; | ||
| import org.apache.flink.streaming.connectors.pulsar.serialization.PulsarSerializationSchema; | ||
| import org.apache.flink.streaming.connectors.pulsar.serialization.PulsarSerializationSchemaWrapper; | ||
| import org.apache.flink.streaming.connectors.pulsar.table.PulsarSinkSemantic; | ||
| import org.apache.flink.streaming.util.OneInputStreamOperatorTestHarness; | ||
| import org.apache.flink.table.api.DataTypes; | ||
|
|
||
| import org.apache.commons.io.IOUtils; | ||
| import org.apache.pulsar.client.api.Consumer; | ||
| import org.apache.pulsar.client.api.Message; | ||
| import org.apache.pulsar.client.api.Schema; | ||
| import org.apache.pulsar.client.api.SubscriptionInitialPosition; | ||
| import org.apache.pulsar.client.impl.conf.ClientConfigurationData; | ||
| import org.junit.After; | ||
| import org.junit.Before; | ||
| import org.junit.Test; | ||
|
|
||
| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
| import java.util.Optional; | ||
| import java.util.Properties; | ||
| import java.util.concurrent.CompletableFuture; | ||
| import java.util.concurrent.ExecutionException; | ||
| import java.util.concurrent.TimeUnit; | ||
| import java.util.concurrent.TimeoutException; | ||
|
|
||
| import static org.junit.Assert.assertEquals; | ||
| import static org.junit.Assert.fail; | ||
|
|
||
| /** test exactly-once for pulsar sink. */ | ||
| public class PulsarSinkExactlyOnceTest extends PulsarTestBaseWithFlink { | ||
|
|
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| private TestFlinkPulsarSink<String> sinkFunction; | ||
| private String topic; | ||
| private OneInputStreamOperatorTestHarness<String, Object> harness; | ||
|
|
||
| @Before | ||
| public void setUp() throws Exception { | ||
| this.topic = newTopic(); | ||
| this.setUpTestHarness(); | ||
| } | ||
|
|
||
| @After | ||
| public void tearDown() throws Exception { | ||
| this.closeTestHarness(); | ||
| } | ||
|
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||
| private void setUpTestHarness() throws Exception { | ||
| final Properties properties = new Properties(); | ||
| final PulsarSerializationSchemaWrapper<String> schemaWrapper = | ||
| new PulsarSerializationSchemaWrapper.Builder<>(new SimpleStringSchema()) | ||
| .useAtomicMode(DataTypes.STRING()) | ||
| .build(); | ||
| this.sinkFunction = | ||
| new TestFlinkPulsarSink<String>( | ||
| getAdminUrl(), | ||
| Optional.of(topic), | ||
| clientConfigurationData, | ||
| properties, | ||
| schemaWrapper, | ||
| PulsarSinkSemantic.EXACTLY_ONCE); | ||
| this.harness = | ||
| new OneInputStreamOperatorTestHarness( | ||
| new StreamSink(this.sinkFunction), StringSerializer.INSTANCE); | ||
| this.harness.setup(); | ||
| } | ||
|
|
||
| private void closeTestHarness() throws Exception { | ||
| this.harness.close(); | ||
| } | ||
|
|
||
| @Test | ||
| public void testSubsumedNotificationOfPreviousCheckpoint() throws Exception { | ||
| this.harness.open(); | ||
| this.harness.processElement("42", 0L); | ||
| this.harness.snapshot(0L, 1L); | ||
| this.harness.processElement("43", 2L); | ||
| this.harness.snapshot(1L, 3L); | ||
| this.harness.processElement("44", 4L); | ||
| this.harness.snapshot(2L, 5L); | ||
| this.harness.notifyOfCompletedCheckpoint(2L); | ||
| this.harness.notifyOfCompletedCheckpoint(1L); | ||
| assertEquals(Arrays.asList("42", "43", "44"), getActualValues(3)); | ||
| } | ||
|
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||
| @Test | ||
| public void testNotifyOfCompletedCheckpoint() throws Exception { | ||
| this.harness.open(); | ||
| this.harness.processElement("42", 0L); | ||
| this.harness.snapshot(0L, 1L); | ||
| this.harness.processElement("43", 2L); | ||
| this.harness.snapshot(1L, 3L); | ||
| this.harness.processElement("44", 4L); | ||
| this.harness.snapshot(2L, 5L); | ||
| this.harness.notifyOfCompletedCheckpoint(1L); | ||
| assertEquals(Arrays.asList("42", "43"), getActualValues(2)); | ||
| } | ||
|
|
||
| @Test | ||
| public void testRestoreCheckpoint() throws Exception { | ||
| this.harness.open(); | ||
| this.harness.processElement("42", 0L); | ||
| this.harness.snapshot(0L, 1L); | ||
| this.harness.processElement("43", 2L); | ||
| final OperatorSubtaskState snapshot = this.harness.snapshot(1L, 3L); | ||
| this.harness.notifyOfCompletedCheckpoint(1L); | ||
|
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||
| int count = 100; | ||
| for (int i = 3; i < count; i++) { | ||
| this.harness.processElement(Integer.toString(41 + i), i); | ||
| this.harness.snapshot(i, i); | ||
| this.harness.notifyOfCompletedCheckpoint(i); | ||
| } | ||
| this.closeTestHarness(); | ||
| this.setUpTestHarness(); | ||
| this.harness.initializeState(snapshot); | ||
| assertEquals(Arrays.asList("42", "43"), getActualValues(2)); | ||
| } | ||
|
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||
| @Test | ||
| public void testFailBeforeNotify() throws Exception { | ||
| this.harness.open(); | ||
| this.harness.processElement("42", 0L); | ||
| this.harness.snapshot(0L, 1L); | ||
| this.harness.processElement("43", 2L); | ||
| OperatorSubtaskState snapshot = this.harness.snapshot(1L, 3L); | ||
| this.sinkFunction.setWritable(false); | ||
|
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||
| try { | ||
| this.harness.processElement("44", 4L); | ||
| this.harness.snapshot(2L, 5L); | ||
| fail("something should fail"); | ||
| } catch (NotWritableException ignore) { | ||
| } | ||
|
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||
| this.closeTestHarness(); | ||
| this.sinkFunction.setWritable(true); | ||
| this.setUpTestHarness(); | ||
| this.harness.initializeState(snapshot); | ||
| assertEquals(Arrays.asList("42", "43"), getActualValues(2)); | ||
| this.closeTestHarness(); | ||
| } | ||
|
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||
| private List<String> getActualValues(int expectedSize) throws Exception { | ||
| final List<String> actualValues = consumeMessage(topic, Schema.STRING, expectedSize, 2000); | ||
| Collections.sort(actualValues); | ||
| return actualValues; | ||
| } | ||
|
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||
| public <T> List<T> consumeMessage(String topic, Schema<T> schema, int count, int timeout) | ||
| throws TimeoutException, ExecutionException, InterruptedException { | ||
| return CompletableFuture.supplyAsync( | ||
| () -> { | ||
| Consumer<T> consumer = null; | ||
| try { | ||
| consumer = | ||
| getPulsarClient() | ||
| .newConsumer(schema) | ||
| .topic(topic) | ||
| .subscriptionInitialPosition( | ||
| SubscriptionInitialPosition.Earliest) | ||
| .subscriptionName("test") | ||
| .subscribe(); | ||
| List<T> result = new ArrayList<>(count); | ||
| for (int i = 0; i < count; i++) { | ||
| final Message<T> message = consumer.receive(); | ||
| result.add(message.getValue()); | ||
| consumer.acknowledge(message); | ||
| } | ||
| consumer.close(); | ||
| return result; | ||
| } catch (Exception e) { | ||
| sneakyThrow(e); | ||
| return null; | ||
| } finally { | ||
| IOUtils.closeQuietly(consumer, i -> {}); | ||
| } | ||
| }) | ||
| .get(timeout, TimeUnit.MILLISECONDS); | ||
| } | ||
|
|
||
| /** javac hack for unchecking the checked exception. */ | ||
| @SuppressWarnings("unchecked") | ||
| public static <T extends Exception> void sneakyThrow(Exception t) throws T { | ||
| throw (T) t; | ||
| } | ||
|
|
||
| /** | ||
| * mock Pulsar Sink,Support for throwing unwritable exceptions. | ||
| * | ||
| * @param <T> record | ||
| */ | ||
| public static class TestFlinkPulsarSink<T> extends FlinkPulsarSink<T> { | ||
|
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| private boolean writable = true; | ||
|
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| public TestFlinkPulsarSink( | ||
| String adminUrl, | ||
| Optional<String> defaultTopicName, | ||
| ClientConfigurationData clientConf, | ||
| Properties properties, | ||
| PulsarSerializationSchema serializationSchema, | ||
| PulsarSinkSemantic semantic) { | ||
| super( | ||
| adminUrl, | ||
| defaultTopicName, | ||
| clientConf, | ||
| properties, | ||
| serializationSchema, | ||
| semantic); | ||
| } | ||
|
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| @Override | ||
| public void invoke(PulsarTransactionState<T> transactionState, T value, Context context) | ||
| throws Exception { | ||
| if (!writable) { | ||
| throw new NotWritableException("TestFlinkPulsarSink"); | ||
| } | ||
| super.invoke(transactionState, value, context); | ||
| } | ||
|
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| public void setWritable(boolean writable) { | ||
| this.writable = writable; | ||
| } | ||
| } | ||
|
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| /** not writable exception. */ | ||
| public static class NotWritableException extends RuntimeException { | ||
| public NotWritableException(String name) { | ||
| super(String.format("Pulsar [%s] is not writable", name)); | ||
| } | ||
| } | ||
| } |
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