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Execute different operations on Amazon Elastic Container Service
/*
* 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.aws2.ecs;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.InvalidPayloadException;
import org.apache.camel.Message;
import org.apache.camel.health.HealthCheck;
import org.apache.camel.health.HealthCheckHelper;
import org.apache.camel.health.WritableHealthCheckRepository;
import org.apache.camel.support.DefaultProducer;
import org.apache.camel.util.ObjectHelper;
import org.apache.camel.util.URISupport;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import software.amazon.awssdk.awscore.exception.AwsServiceException;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.CreateClusterRequest;
import software.amazon.awssdk.services.ecs.model.CreateClusterResponse;
import software.amazon.awssdk.services.ecs.model.DeleteClusterRequest;
import software.amazon.awssdk.services.ecs.model.DeleteClusterResponse;
import software.amazon.awssdk.services.ecs.model.DescribeClustersRequest;
import software.amazon.awssdk.services.ecs.model.DescribeClustersResponse;
import software.amazon.awssdk.services.ecs.model.ListClustersRequest;
import software.amazon.awssdk.services.ecs.model.ListClustersRequest.Builder;
import software.amazon.awssdk.services.ecs.model.ListClustersResponse;
/**
* A Producer which sends messages to the Amazon ECS Service SDK v2 AWS ECS
*/
public class ECS2Producer extends DefaultProducer {
private static final Logger LOG = LoggerFactory.getLogger(ECS2Producer.class);
private transient String ecsProducerToString;
private HealthCheck producerHealthCheck;
private WritableHealthCheckRepository healthCheckRepository;
public ECS2Producer(Endpoint endpoint) {
super(endpoint);
}
@Override
public void process(Exchange exchange) throws Exception {
switch (determineOperation(exchange)) {
case listClusters:
listClusters(getEndpoint().getEcsClient(), exchange);
break;
case describeCluster:
describeCluster(getEndpoint().getEcsClient(), exchange);
break;
case createCluster:
createCluster(getEndpoint().getEcsClient(), exchange);
break;
case deleteCluster:
deleteCluster(getEndpoint().getEcsClient(), exchange);
break;
default:
throw new IllegalArgumentException("Unsupported operation");
}
}
private ECS2Operations determineOperation(Exchange exchange) {
ECS2Operations operation = exchange.getIn().getHeader(ECS2Constants.OPERATION, ECS2Operations.class);
if (operation == null) {
operation = getConfiguration().getOperation();
}
return operation;
}
protected ECS2Configuration getConfiguration() {
return getEndpoint().getConfiguration();
}
@Override
public String toString() {
if (ecsProducerToString == null) {
ecsProducerToString = "ECSProducer[" + URISupport.sanitizeUri(getEndpoint().getEndpointUri()) + "]";
}
return ecsProducerToString;
}
@Override
public ECS2Endpoint getEndpoint() {
return (ECS2Endpoint) super.getEndpoint();
}
private void listClusters(EcsClient ecsClient, Exchange exchange) throws InvalidPayloadException {
if (getConfiguration().isPojoRequest()) {
Object payload = exchange.getIn().getMandatoryBody();
if (payload instanceof ListClustersRequest) {
ListClustersResponse result;
try {
ListClustersRequest request = (ListClustersRequest) payload;
result = ecsClient.listClusters(request);
} catch (AwsServiceException ase) {
LOG.trace("List Clusters command returned the error code {}", ase.awsErrorDetails().errorCode());
throw ase;
}
Message message = getMessageForResponse(exchange);
message.setBody(result);
}
} else {
Builder builder = ListClustersRequest.builder();
if (ObjectHelper.isNotEmpty(exchange.getIn().getHeader(ECS2Constants.MAX_RESULTS))) {
int maxRes = exchange.getIn().getHeader(ECS2Constants.MAX_RESULTS, Integer.class);
builder.maxResults(maxRes);
}
ListClustersResponse result;
try {
ListClustersRequest request = builder.build();
result = ecsClient.listClusters(request);
} catch (AwsServiceException ase) {
LOG.trace("List Clusters command returned the error code {}", ase.awsErrorDetails().errorCode());
throw ase;
}
Message message = getMessageForResponse(exchange);
message.setBody(result);
}
}
private void createCluster(EcsClient ecsClient, Exchange exchange) throws InvalidPayloadException {
if (getConfiguration().isPojoRequest()) {
Object payload = exchange.getIn().getMandatoryBody();
if (payload instanceof CreateClusterRequest) {
CreateClusterResponse result;
try {
CreateClusterRequest request = (CreateClusterRequest) payload;
result = ecsClient.createCluster(request);
} catch (AwsServiceException ase) {
LOG.trace("Create Cluster command returned the error code {}", ase.awsErrorDetails().errorCode());
throw ase;
}
Message message = getMessageForResponse(exchange);
message.setBody(result);
}
} else {
CreateClusterRequest.Builder builder = CreateClusterRequest.builder();
if (ObjectHelper.isNotEmpty(exchange.getIn().getHeader(ECS2Constants.CLUSTER_NAME))) {
String name = exchange.getIn().getHeader(ECS2Constants.CLUSTER_NAME, String.class);
builder.clusterName(name);
}
CreateClusterResponse result;
try {
CreateClusterRequest request = builder.build();
result = ecsClient.createCluster(request);
} catch (AwsServiceException ase) {
LOG.trace("Create Cluster command returned the error code {}", ase.awsErrorDetails().errorCode());
throw ase;
}
Message message = getMessageForResponse(exchange);
message.setBody(result);
}
}
private void describeCluster(EcsClient ecsClient, Exchange exchange) throws InvalidPayloadException {
if (getConfiguration().isPojoRequest()) {
Object payload = exchange.getIn().getMandatoryBody();
if (payload instanceof DescribeClustersRequest) {
DescribeClustersResponse result;
try {
DescribeClustersRequest request = (DescribeClustersRequest) payload;
result = ecsClient.describeClusters(request);
} catch (AwsServiceException ase) {
LOG.trace("Describe Clusters command returned the error code {}", ase.awsErrorDetails().errorCode());
throw ase;
}
Message message = getMessageForResponse(exchange);
message.setBody(result);
}
} else {
DescribeClustersRequest.Builder builder = DescribeClustersRequest.builder();
if (ObjectHelper.isNotEmpty(exchange.getIn().getHeader(ECS2Constants.CLUSTER_NAME))) {
String clusterName = exchange.getIn().getHeader(ECS2Constants.CLUSTER_NAME, String.class);
builder.clusters(clusterName);
}
DescribeClustersResponse result;
try {
DescribeClustersRequest request = builder.build();
result = ecsClient.describeClusters(request);
} catch (AwsServiceException ase) {
LOG.trace("Describe Clusters command returned the error code {}", ase.awsErrorDetails().errorCode());
throw ase;
}
Message message = getMessageForResponse(exchange);
message.setBody(result);
}
}
private void deleteCluster(EcsClient ecsClient, Exchange exchange) throws InvalidPayloadException {
if (getConfiguration().isPojoRequest()) {
Object payload = exchange.getIn().getMandatoryBody();
if (payload instanceof DeleteClusterRequest) {
DeleteClusterResponse result;
try {
DeleteClusterRequest request = (DeleteClusterRequest) payload;
result = ecsClient.deleteCluster(request);
} catch (AwsServiceException ase) {
LOG.trace("Delete Cluster command returned the error code {}", ase.awsErrorDetails().errorCode());
throw ase;
}
Message message = getMessageForResponse(exchange);
message.setBody(result);
}
} else {
DeleteClusterRequest.Builder builder = DeleteClusterRequest.builder();
if (ObjectHelper.isNotEmpty(exchange.getIn().getHeader(ECS2Constants.CLUSTER_NAME))) {
String name = exchange.getIn().getHeader(ECS2Constants.CLUSTER_NAME, String.class);
builder.cluster(name);
} else {
throw new IllegalArgumentException("Cluster name must be specified");
}
DeleteClusterResponse result;
try {
DeleteClusterRequest request = builder.build();
result = ecsClient.deleteCluster(request);
} catch (AwsServiceException ase) {
LOG.trace("Delete Cluster command returned the error code {}", ase.awsErrorDetails().errorCode());
throw ase;
}
Message message = getMessageForResponse(exchange);
message.setBody(result);
}
}
public static Message getMessageForResponse(final Exchange exchange) {
return exchange.getMessage();
}
@Override
protected void doStart() throws Exception {
// health-check is optional so discover and resolve
healthCheckRepository = HealthCheckHelper.getHealthCheckRepository(
getEndpoint().getCamelContext(),
"producers",
WritableHealthCheckRepository.class);
if (healthCheckRepository != null) {
String id = getEndpoint().getId();
producerHealthCheck = new ECS2ProducerHealthCheck(getEndpoint(), id);
producerHealthCheck.setEnabled(getEndpoint().getComponent().isHealthCheckProducerEnabled());
healthCheckRepository.addHealthCheck(producerHealthCheck);
}
}
@Override
protected void doStop() throws Exception {
if (healthCheckRepository != null && producerHealthCheck != null) {
healthCheckRepository.removeHealthCheck(producerHealthCheck);
producerHealthCheck = null;
}
}
}
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