AHeise commented on a change in pull request #15109: URL: https://github.com/apache/flink/pull/15109#discussion_r590062671
########## File path: flink-connectors/flink-connector-hbase/src/test/java/org/apache/flink/connector/hbase/source/HBaseSourceITCase.java ########## @@ -0,0 +1,313 @@ +/* + * 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.flink.connector.hbase.source; + +import org.apache.flink.api.common.eventtime.WatermarkStrategy; +import org.apache.flink.api.common.functions.RichFlatMapFunction; +import org.apache.flink.api.common.typeinfo.TypeInformation; +import org.apache.flink.connector.hbase.source.reader.HBaseEvent; +import org.apache.flink.connector.hbase.source.reader.HBaseSourceDeserializer; +import org.apache.flink.connector.hbase.testutil.FailureSink; +import org.apache.flink.connector.hbase.testutil.HBaseTestClusterUtil; +import org.apache.flink.connector.hbase.testutil.Util; +import org.apache.flink.core.execution.JobClient; +import org.apache.flink.runtime.minicluster.MiniCluster; +import org.apache.flink.runtime.minicluster.MiniClusterJobClient; +import org.apache.flink.streaming.api.CheckpointingMode; +import org.apache.flink.streaming.api.datastream.DataStream; +import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; +import org.apache.flink.util.Collector; + +import org.apache.hadoop.hbase.client.Put; +import org.junit.After; +import org.junit.Before; +import org.junit.Test; +import org.xml.sax.SAXException; + +import javax.xml.parsers.ParserConfigurationException; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.List; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.TimeUnit; + +import static org.apache.flink.connector.hbase.testutil.FileSignal.awaitSignalThrowOnFailure; +import static org.apache.flink.connector.hbase.testutil.FileSignal.awaitSuccess; +import static org.apache.flink.connector.hbase.testutil.FileSignal.cleanupFolder; +import static org.apache.flink.connector.hbase.testutil.FileSignal.cleanupSignal; +import static org.apache.flink.connector.hbase.testutil.FileSignal.makeFolder; +import static org.apache.flink.connector.hbase.testutil.FileSignal.signal; +import static org.apache.flink.connector.hbase.testutil.FileSignal.signalFailure; +import static org.apache.flink.connector.hbase.testutil.FileSignal.signalSuccess; +import static org.junit.Assert.assertArrayEquals; + +/** Tests the most basic use cases of the source with a mocked HBase system. */ +public class HBaseSourceITCase extends TestsWithTestHBaseCluster { + + private DataStream<String> streamFromHBaseSource( + StreamExecutionEnvironment environment, String tableName) + throws ParserConfigurationException, SAXException, IOException { + return streamFromHBaseSource(environment, tableName, 1); + } + + private DataStream<String> streamFromHBaseSource( + StreamExecutionEnvironment environment, String tableName, int parallelism) + throws ParserConfigurationException, SAXException, IOException { + HBaseStringDeserializationScheme deserializationScheme = + new HBaseStringDeserializationScheme(); + HBaseSource<String> source = + new HBaseSource<>(deserializationScheme, tableName, cluster.getConfig()); + environment.setParallelism(parallelism); + DataStream<String> stream = + environment.fromSource( + source, + WatermarkStrategy.noWatermarks(), + "hbaseSourceITCase", + deserializationScheme.getProducedType()); + return stream; + } + + private static <T> void expectFirstValuesToBe( + DataStream<T> stream, T[] expectedValues, String message) { + + List<T> collectedValues = new ArrayList<>(); + stream.flatMap( + new RichFlatMapFunction<T, Object>() { + + @Override + public void flatMap(T value, Collector<Object> out) { + System.out.println("Test collected: " + value); + collectedValues.add(value); + if (collectedValues.size() == expectedValues.length) { + assertArrayEquals(message, expectedValues, collectedValues.toArray()); + throw new SuccessException(); + } + } + }); + } + + private static void doAndWaitForSuccess( + StreamExecutionEnvironment env, Runnable action, int timeout) { + try { + JobClient jobClient = env.executeAsync(); + MiniCluster miniCluster = Util.miniCluster((MiniClusterJobClient) jobClient); + Util.waitForClusterStart(miniCluster, true); + + action.run(); + jobClient.getJobExecutionResult().get(timeout, TimeUnit.SECONDS); + jobClient.cancel(); + throw new RuntimeException("Waiting for the correct data timed out"); + } catch (Exception exception) { + if (!causedBySuccess(exception)) { + throw new RuntimeException("Test failed", exception); + } else { + // Normal termination + } + } + } + + @Before + public void makeSignalFolder() { + makeFolder(); + } + + @After + public void cleanupSignalFolder() throws IOException { + cleanupFolder(); + } + + @Test + public void testBasicPut() throws Exception { + StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); + DataStream<String> stream = streamFromHBaseSource(env, baseTableName); + cluster.makeTable(baseTableName, DEFAULT_CF_COUNT); + String[] expectedValues = uniqueValues(2 * DEFAULT_CF_COUNT); + + expectFirstValuesToBe( + stream, + expectedValues, + "HBase source did not produce the right values after a basic put operation"); + doAndWaitForSuccess( + env, () -> cluster.put(baseTableName, DEFAULT_CF_COUNT, expectedValues), 120); + } + + @Test + public void testOnlyReplicateSpecifiedTable() throws Exception { + String secondTable = baseTableName + "-table2"; + StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); + DataStream<String> stream = streamFromHBaseSource(env, baseTableName); + cluster.makeTable(baseTableName, DEFAULT_CF_COUNT); + cluster.makeTable(secondTable, DEFAULT_CF_COUNT); + String[] expectedValues = uniqueValues(DEFAULT_CF_COUNT); + + expectFirstValuesToBe( + stream, + expectedValues, + "HBase source did not produce the values of the correct table"); + doAndWaitForSuccess( + env, + () -> { + cluster.put(secondTable, DEFAULT_CF_COUNT, uniqueValues(DEFAULT_CF_COUNT)); + try { + Thread.sleep(2000); + } catch (InterruptedException e) { + e.printStackTrace(); + } + cluster.put(baseTableName, DEFAULT_CF_COUNT, expectedValues); + }, + 180); + } + + @Test + public void testRecordsAreProducedExactlyOnceWithCheckpoints() throws Exception { + final String collectedValueSignal = "collectedValue"; + String[] expectedValues = uniqueValues(20); + cluster.makeTable(baseTableName); + + StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); + env.enableCheckpointing(2000); + env.getCheckpointConfig().setCheckpointingMode(CheckpointingMode.EXACTLY_ONCE); + DataStream<String> stream = streamFromHBaseSource(env, baseTableName); + stream.addSink( + new FailureSink<String>(true, 3500, TypeInformation.of(String.class)) { + + private void checkForSuccess() { + List<String> checkpointed = getCheckpointedValues(); + System.out.println(unCheckpointedValues + " " + checkpointed); + if (checkpointed.size() == expectedValues.length) { + try { + assertArrayEquals( + "Wrong values were produced.", + expectedValues, + checkpointed.toArray()); + signalSuccess(); + } catch (Exception e) { Review comment: ``` catch (Exception e) { signalFailure(); throw e; } ``` ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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