| /* |
| * 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.util.concurrent.ExecutorService; |
| |
| import io.debezium.embedded.EmbeddedEngine; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.apache.camel.component.debezium.configuration.EmbeddedDebeziumConfiguration; |
| import org.apache.camel.support.DefaultConsumer; |
| import org.apache.kafka.connect.source.SourceRecord; |
| |
| public class DebeziumConsumer extends DefaultConsumer { |
| |
| private final DebeziumEndpoint endpoint; |
| private final EmbeddedDebeziumConfiguration configuration; |
| |
| private ExecutorService executorService; |
| private EmbeddedEngine dbzEngine; |
| |
| public DebeziumConsumer(DebeziumEndpoint endpoint, Processor processor) { |
| super(endpoint, processor); |
| this.endpoint = endpoint; |
| this.configuration = endpoint.getConfiguration(); |
| } |
| |
| @Override |
| protected void doStart() throws Exception { |
| super.doStart(); |
| |
| // start a single threaded pool to monitor events |
| executorService = endpoint.createExecutor(); |
| |
| // create engine |
| dbzEngine = createDbzEngine(); |
| |
| // submit task to the thread pool |
| executorService.submit(dbzEngine); |
| } |
| |
| @Override |
| protected void doStop() throws Exception { |
| dbzEngine.stop(); |
| |
| // shutdown the thread pool gracefully |
| getEndpoint().getCamelContext().getExecutorServiceManager().shutdownGraceful(executorService); |
| |
| // shutdown camel consumer |
| super.doStop(); |
| } |
| |
| private EmbeddedEngine createDbzEngine() { |
| return EmbeddedEngine.create().using(configuration.createDebeziumConfiguration()) |
| .notifying(this::onEventListener).build(); |
| } |
| |
| private void onEventListener(final SourceRecord event) { |
| final Exchange exchange = endpoint.createDbzExchange(event); |
| |
| try { |
| // send message to next processor in the route |
| getProcessor().process(exchange); |
| } catch (Exception ex) { |
| exchange.setException(ex); |
| } finally { |
| // log exception if an exception occurred and was not handled |
| if (exchange.getException() != null) { |
| getExceptionHandler().handleException("Error processing exchange", exchange, |
| exchange.getException()); |
| } |
| } |
| } |
| } |