| /* |
| * 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.camel.component.debezium; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.nio.file.StandardOpenOption; |
| |
| import io.debezium.util.Collect; |
| import io.debezium.util.IoUtil; |
| import org.apache.camel.CamelContext; |
| import org.apache.camel.EndpointInject; |
| import org.apache.camel.RoutesBuilder; |
| import org.apache.camel.builder.RouteBuilder; |
| import org.apache.camel.component.debezium.configuration.EmbeddedDebeziumConfiguration; |
| import org.apache.camel.component.debezium.configuration.FileConnectorEmbeddedDebeziumConfiguration; |
| import org.apache.camel.component.mock.MockEndpoint; |
| import org.apache.camel.test.junit4.CamelTestSupport; |
| import org.junit.After; |
| import org.junit.AfterClass; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class DebeziumConsumerTest extends CamelTestSupport { |
| |
| private static final int NUMBER_OF_LINES = 5; |
| private static final String DEFAULT_DATA_TESTING_FOLDER = "target/data"; |
| private static final Path TEST_FILE_PATH = createTestingPath("camel-debezium-test-file-input.txt").toAbsolutePath(); |
| private static final Path TEST_OFFSET_STORE_PATH = createTestingPath("camel-debezium-test-offset-store.txt").toAbsolutePath(); |
| private static final String DEFAULT_TOPIC_NAME = "test_name_dummy"; |
| private static final String DEFAULT_ROUTE_ID = "foo"; |
| |
| private File inputFile; |
| private File offsetStore; |
| private int linesAdded; |
| |
| @EndpointInject("mock:result") |
| private MockEndpoint to; |
| |
| |
| |
| @Before |
| public void beforeEach() { |
| linesAdded = 0; |
| inputFile = createTestingFile(TEST_FILE_PATH); |
| offsetStore = createTestingFile(TEST_OFFSET_STORE_PATH); |
| } |
| |
| @After |
| public void afterEach() { |
| // clean all data files |
| deletePath(TEST_FILE_PATH); |
| deletePath(TEST_OFFSET_STORE_PATH); |
| } |
| |
| @AfterClass |
| public static void afterClass() { |
| // make sure to clean all data files |
| deletePath(TEST_FILE_PATH); |
| deletePath(TEST_OFFSET_STORE_PATH); |
| } |
| |
| @Test |
| public void camelShouldConsumeDebeziumMessages() throws Exception { |
| // add initial lines to the file |
| appendLinesToSource(NUMBER_OF_LINES); |
| |
| // assert exchanges |
| to.expectedMessageCount(linesAdded); |
| to.expectedHeaderReceived(DebeziumConstants.HEADER_IDENTIFIER, DEFAULT_TOPIC_NAME); |
| to.expectedBodiesReceivedInAnyOrder("message-1", "message-2", "message-3", "message-4", "message-5"); |
| |
| // verify the first records if they being consumed |
| to.assertIsSatisfied(50); |
| |
| // send another batch |
| appendLinesToSource(NUMBER_OF_LINES); |
| |
| // assert exchanges again |
| to.expectedMessageCount(linesAdded); |
| to.expectedHeaderReceived(DebeziumConstants.HEADER_IDENTIFIER, DEFAULT_TOPIC_NAME); |
| |
| to.assertIsSatisfied(50); |
| } |
| |
| @Test |
| public void camelShouldContinueConsumeDebeziumMessagesWhenRouteIsOffline() throws Exception { |
| // add initial lines to the file |
| appendLinesToSource(NUMBER_OF_LINES); |
| |
| // assert exchanges |
| to.expectedMessageCount(linesAdded); |
| |
| // verify the first records if they being consumed |
| to.assertIsSatisfied(50); |
| |
| // assert when route if off |
| to.reset(); |
| |
| // stop route |
| context.getRouteController().stopRoute(DEFAULT_ROUTE_ID); |
| |
| // send a batch while the route is off |
| appendLinesToSource(NUMBER_OF_LINES); |
| |
| // start route again |
| context.getRouteController().startRoute(DEFAULT_ROUTE_ID); |
| |
| // assert exchange messages after restarting, it should continue using the offset file |
| to.expectedMessageCount(NUMBER_OF_LINES); |
| to.expectedHeaderReceived(DebeziumConstants.HEADER_IDENTIFIER, DEFAULT_TOPIC_NAME); |
| to.expectedBodiesReceivedInAnyOrder("message-6", "message-7", "message-8", "message-9", "message-10"); |
| |
| to.assertIsSatisfied(50); |
| |
| |
| } |
| |
| @Override |
| protected CamelContext createCamelContext() throws Exception { |
| final CamelContext context = super.createCamelContext(); |
| final DebeziumComponent component = new DebeziumTestComponent(context); |
| |
| component.setConfiguration(initConfiguration()); |
| context.addComponent("debezium", component); |
| |
| context.disableJMX(); |
| |
| return context; |
| } |
| |
| @Override |
| protected RoutesBuilder createRouteBuilder() throws Exception { |
| return new RouteBuilder() { |
| @Override |
| public void configure() throws Exception { |
| from("debezium") |
| .to(to); |
| } |
| }; |
| } |
| |
| private static Path createTestingPath(final String relativePath) { |
| return Paths.get(DEFAULT_DATA_TESTING_FOLDER, relativePath).toAbsolutePath(); |
| } |
| |
| private static File createTestingFile(final Path relativePath) { |
| return IoUtil.createFile(relativePath.toAbsolutePath()); |
| } |
| |
| private static void deletePath(final Path path) { |
| try { |
| IoUtil.delete(path); |
| } catch (IOException e) { |
| System.err.println(String.format("Unable to delete %s", path.toAbsolutePath())); |
| } |
| } |
| |
| private EmbeddedDebeziumConfiguration initConfiguration() { |
| final FileConnectorEmbeddedDebeziumConfiguration configuration = new FileConnectorEmbeddedDebeziumConfiguration(); |
| configuration.setName("test_name_dummy"); |
| configuration.setTopicConfig(DEFAULT_TOPIC_NAME); |
| configuration.setOffsetStorageFileName(TEST_OFFSET_STORE_PATH.toAbsolutePath().toString()); |
| configuration.setTestFilePath(TEST_FILE_PATH); |
| configuration.setOffsetFlushIntervalMs(0); |
| |
| return configuration; |
| } |
| |
| private void appendLinesToSource(int numberOfLines) throws IOException { |
| CharSequence[] lines = new CharSequence[numberOfLines]; |
| for (int i = 0; i != numberOfLines; ++i) { |
| lines[i] = generateLine(linesAdded + i + 1); |
| } |
| java.nio.file.Files.write(inputFile.toPath(), Collect.arrayListOf(lines), StandardCharsets.UTF_8, StandardOpenOption.APPEND); |
| linesAdded += numberOfLines; |
| } |
| |
| private String generateLine(int lineNumber) { |
| return "message-" + lineNumber; |
| } |
| } |