| /* |
| * 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.mongodb3; |
| |
| import java.util.List; |
| import java.util.concurrent.ExecutorService; |
| |
| import static java.util.Collections.singletonList; |
| |
| import org.apache.camel.Processor; |
| import org.apache.camel.support.DefaultConsumer; |
| import org.apache.camel.util.ObjectHelper; |
| import org.bson.BsonDocument; |
| |
| /** |
| * The MongoDb Change Streams consumer. |
| */ |
| public class MongoDbChangeStreamsConsumer extends DefaultConsumer { |
| |
| private static final String STREAM_FILTER_PROPERTY = "streamFilter"; |
| |
| private final MongoDbEndpoint endpoint; |
| private ExecutorService executor; |
| private MongoDbChangeStreamsThread changeStreamsThread; |
| |
| public MongoDbChangeStreamsConsumer(MongoDbEndpoint endpoint, Processor processor) { |
| super(endpoint, processor); |
| this.endpoint = endpoint; |
| } |
| |
| @Override |
| protected void doStop() throws Exception { |
| super.doStop(); |
| if (changeStreamsThread != null) { |
| changeStreamsThread.stop(); |
| } |
| if (executor != null) { |
| endpoint.getCamelContext().getExecutorServiceManager().shutdown(executor); |
| executor = null; |
| } |
| } |
| |
| @Override |
| protected void doStart() throws Exception { |
| super.doStart(); |
| String streamFilter = (String) getRoute().getProperties().get(STREAM_FILTER_PROPERTY); |
| List<BsonDocument> bsonFilter = null; |
| if (ObjectHelper.isNotEmpty(streamFilter)) { |
| bsonFilter = singletonList(BsonDocument.parse(streamFilter)); |
| } |
| |
| executor = endpoint.getCamelContext().getExecutorServiceManager().newFixedThreadPool(this, endpoint.getEndpointUri(), 1); |
| changeStreamsThread = new MongoDbChangeStreamsThread(endpoint, this, bsonFilter); |
| changeStreamsThread.init(); |
| executor.execute(changeStreamsThread); |
| } |
| } |