| /* |
| * 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.aws.msk; |
| |
| import com.amazonaws.AmazonServiceException; |
| import com.amazonaws.services.kafka.AWSKafka; |
| import com.amazonaws.services.kafka.model.BrokerNodeGroupInfo; |
| import com.amazonaws.services.kafka.model.CreateClusterRequest; |
| import com.amazonaws.services.kafka.model.CreateClusterResult; |
| import com.amazonaws.services.kafka.model.DeleteClusterRequest; |
| import com.amazonaws.services.kafka.model.DeleteClusterResult; |
| import com.amazonaws.services.kafka.model.DescribeClusterRequest; |
| import com.amazonaws.services.kafka.model.DescribeClusterResult; |
| import com.amazonaws.services.kafka.model.ListClustersRequest; |
| import com.amazonaws.services.kafka.model.ListClustersResult; |
| import org.apache.camel.Endpoint; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Message; |
| import org.apache.camel.support.DefaultProducer; |
| import org.apache.camel.util.ObjectHelper; |
| import org.apache.camel.util.URISupport; |
| |
| /** |
| * A Producer which sends messages to the Amazon MSK Service |
| * <a href="http://aws.amazon.com/msk/">AWS MSK</a> |
| */ |
| public class MSKProducer extends DefaultProducer { |
| |
| private transient String mskProducerToString; |
| |
| public MSKProducer(Endpoint endpoint) { |
| super(endpoint); |
| } |
| |
| @Override |
| public void process(Exchange exchange) throws Exception { |
| switch (determineOperation(exchange)) { |
| case listClusters: |
| listClusters(getEndpoint().getMskClient(), exchange); |
| break; |
| case createCluster: |
| createCluster(getEndpoint().getMskClient(), exchange); |
| break; |
| case deleteCluster: |
| deleteCluster(getEndpoint().getMskClient(), exchange); |
| break; |
| case describeCluster: |
| describeCluster(getEndpoint().getMskClient(), exchange); |
| break; |
| default: |
| throw new IllegalArgumentException("Unsupported operation"); |
| } |
| } |
| |
| private MSKOperations determineOperation(Exchange exchange) { |
| MSKOperations operation = exchange.getIn().getHeader(MSKConstants.OPERATION, MSKOperations.class); |
| if (operation == null) { |
| operation = getConfiguration().getOperation(); |
| } |
| return operation; |
| } |
| |
| protected MSKConfiguration getConfiguration() { |
| return getEndpoint().getConfiguration(); |
| } |
| |
| @Override |
| public String toString() { |
| if (mskProducerToString == null) { |
| mskProducerToString = "MSKProducer[" + URISupport.sanitizeUri(getEndpoint().getEndpointUri()) + "]"; |
| } |
| return mskProducerToString; |
| } |
| |
| @Override |
| public MSKEndpoint getEndpoint() { |
| return (MSKEndpoint)super.getEndpoint(); |
| } |
| |
| private void listClusters(AWSKafka mskClient, Exchange exchange) { |
| ListClustersRequest request = new ListClustersRequest(); |
| if (ObjectHelper.isNotEmpty(exchange.getIn().getHeader(MSKConstants.CLUSTERS_FILTER))) { |
| String filter = exchange.getIn().getHeader(MSKConstants.CLUSTERS_FILTER, String.class); |
| request.withClusterNameFilter(filter); |
| } |
| ListClustersResult result; |
| try { |
| result = mskClient.listClusters(request); |
| } catch (AmazonServiceException ase) { |
| log.trace("List Clusters command returned the error code {}", ase.getErrorCode()); |
| throw ase; |
| } |
| Message message = getMessageForResponse(exchange); |
| message.setBody(result); |
| } |
| |
| private void createCluster(AWSKafka mskClient, Exchange exchange) { |
| CreateClusterRequest request = new CreateClusterRequest(); |
| if (ObjectHelper.isNotEmpty(exchange.getIn().getHeader(MSKConstants.CLUSTER_NAME))) { |
| String name = exchange.getIn().getHeader(MSKConstants.CLUSTER_NAME, String.class); |
| request.withClusterName(name); |
| } else { |
| throw new IllegalArgumentException("Cluster Name must be specified"); |
| } |
| if (ObjectHelper.isNotEmpty(exchange.getIn().getHeader(MSKConstants.CLUSTER_KAFKA_VERSION))) { |
| String version = exchange.getIn().getHeader(MSKConstants.CLUSTER_KAFKA_VERSION, String.class); |
| request.withKafkaVersion(version); |
| } else { |
| throw new IllegalArgumentException("Kafka Version must be specified"); |
| } |
| if (ObjectHelper.isNotEmpty(exchange.getIn().getHeader(MSKConstants.BROKER_NODES_NUMBER))) { |
| Integer nodesNumber = exchange.getIn().getHeader(MSKConstants.BROKER_NODES_NUMBER, Integer.class); |
| request.withNumberOfBrokerNodes(nodesNumber); |
| } else { |
| throw new IllegalArgumentException("Kafka Version must be specified"); |
| } |
| if (ObjectHelper.isNotEmpty(exchange.getIn().getHeader(MSKConstants.BROKER_NODES_GROUP_INFO))) { |
| BrokerNodeGroupInfo brokerNodesGroupInfo = exchange.getIn().getHeader(MSKConstants.BROKER_NODES_GROUP_INFO, BrokerNodeGroupInfo.class); |
| request.withBrokerNodeGroupInfo(brokerNodesGroupInfo); |
| } else { |
| throw new IllegalArgumentException("BrokerNodeGroupInfo must be specified"); |
| } |
| CreateClusterResult result; |
| try { |
| result = mskClient.createCluster(request); |
| } catch (AmazonServiceException ase) { |
| log.trace("Create Cluster command returned the error code {}", ase.getErrorCode()); |
| throw ase; |
| } |
| Message message = getMessageForResponse(exchange); |
| message.setBody(result); |
| } |
| |
| private void deleteCluster(AWSKafka mskClient, Exchange exchange) { |
| DeleteClusterRequest request = new DeleteClusterRequest(); |
| if (ObjectHelper.isNotEmpty(exchange.getIn().getHeader(MSKConstants.CLUSTER_ARN))) { |
| String arn = exchange.getIn().getHeader(MSKConstants.CLUSTER_ARN, String.class); |
| request.withClusterArn(arn); |
| } else { |
| throw new IllegalArgumentException("Cluster ARN must be specified"); |
| } |
| DeleteClusterResult result; |
| try { |
| result = mskClient.deleteCluster(request); |
| } catch (AmazonServiceException ase) { |
| log.trace("Delete Cluster command returned the error code {}", ase.getErrorCode()); |
| throw ase; |
| } |
| Message message = getMessageForResponse(exchange); |
| message.setBody(result); |
| } |
| |
| private void describeCluster(AWSKafka mskClient, Exchange exchange) { |
| DescribeClusterRequest request = new DescribeClusterRequest(); |
| if (ObjectHelper.isNotEmpty(exchange.getIn().getHeader(MSKConstants.CLUSTER_ARN))) { |
| String arn = exchange.getIn().getHeader(MSKConstants.CLUSTER_ARN, String.class); |
| request.withClusterArn(arn); |
| } else { |
| throw new IllegalArgumentException("Cluster ARN must be specified"); |
| } |
| DescribeClusterResult result; |
| try { |
| result = mskClient.describeCluster(request); |
| } catch (AmazonServiceException ase) { |
| log.trace("Delete Cluster command returned the error code {}", ase.getErrorCode()); |
| throw ase; |
| } |
| Message message = getMessageForResponse(exchange); |
| message.setBody(result); |
| } |
| |
| public static Message getMessageForResponse(final Exchange exchange) { |
| if (exchange.getPattern().isOutCapable()) { |
| Message out = exchange.getOut(); |
| out.copyFrom(exchange.getIn()); |
| return out; |
| } |
| return exchange.getIn(); |
| } |
| } |