/**
* 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.sqs;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
import com.amazonaws.AmazonClientException;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.sqs.AmazonSQSClient;
import com.amazonaws.services.sqs.model.ChangeMessageVisibilityRequest;
import com.amazonaws.services.sqs.model.CreateQueueRequest;
import com.amazonaws.services.sqs.model.CreateQueueResult;
import com.amazonaws.services.sqs.model.DeleteMessageRequest;
import com.amazonaws.services.sqs.model.ListQueuesResult;
import com.amazonaws.services.sqs.model.Message;
import com.amazonaws.services.sqs.model.ReceiveMessageRequest;
import com.amazonaws.services.sqs.model.ReceiveMessageResult;
import com.amazonaws.services.sqs.model.SendMessageRequest;
import com.amazonaws.services.sqs.model.SendMessageResult;
import com.amazonaws.services.sqs.model.SetQueueAttributesRequest;
public class AmazonSQSClientMock extends AmazonSQSClient {
List<Message> messages = new ArrayList<Message>();
Map<String, Map<String, String>> queueAttributes = new HashMap<String, Map<String, String>>();
List<ChangeMessageVisibilityRequest> changeMessageVisibilityRequests = new CopyOnWriteArrayList<ChangeMessageVisibilityRequest>();
private Map<String, CreateQueueRequest> queues = new LinkedHashMap<String, CreateQueueRequest>();
private Map<String, ScheduledFuture> inFlight = new LinkedHashMap<String, ScheduledFuture>();
private ScheduledExecutorService scheduler;
public AmazonSQSClientMock() {
super(new BasicAWSCredentials("myAccessKey", "mySecretKey"));
}
@Override
public ListQueuesResult listQueues() throws AmazonServiceException, AmazonClientException {
ListQueuesResult result = new ListQueuesResult();
return result;
}
@Override
public CreateQueueResult createQueue(CreateQueueRequest createQueueRequest) throws AmazonServiceException, AmazonClientException {
String queueName = "https://queue.amazonaws.com/541925086079/" + createQueueRequest.getQueueName();
queues.put(queueName, createQueueRequest);
CreateQueueResult result = new CreateQueueResult();
result.setQueueUrl(queueName);
return result;
}
@Override
public SendMessageResult sendMessage(SendMessageRequest sendMessageRequest) throws AmazonServiceException, AmazonClientException {
Message message = new Message();
message.setBody(sendMessageRequest.getMessageBody());
message.setMD5OfBody("6a1559560f67c5e7a7d5d838bf0272ee");
message.setMessageId("f6fb6f99-5eb2-4be4-9b15-144774141458");
message.setReceiptHandle("0NNAq8PwvXsyZkR6yu4nQ07FGxNmOBWi5zC9+4QMqJZ0DJ3gVOmjI2Gh/oFnb0IeJqy5Zc8kH4JX7GVpfjcEDjaAPSeOkXQZRcaBqt"
+ "4lOtyfj0kcclVV/zS7aenhfhX5Ixfgz/rHhsJwtCPPvTAdgQFGYrqaHly+etJiawiNPVc=");
synchronized (messages) {
messages.add(message);
}
SendMessageResult result = new SendMessageResult();
result.setMessageId("f6fb6f99-5eb2-4be4-9b15-144774141458");
result.setMD5OfMessageBody("6a1559560f67c5e7a7d5d838bf0272ee");
return result;
}
@Override
public ReceiveMessageResult receiveMessage(ReceiveMessageRequest receiveMessageRequest) throws AmazonServiceException, AmazonClientException {
Integer maxNumberOfMessages = receiveMessageRequest.getMaxNumberOfMessages() != null ? receiveMessageRequest.getMaxNumberOfMessages() : Integer.MAX_VALUE;
ReceiveMessageResult result = new ReceiveMessageResult();
Collection<Message> resultMessages = new ArrayList<Message>();
synchronized (messages) {
int fetchSize = 0;
for (Iterator<Message> iterator = messages.iterator(); iterator.hasNext() && fetchSize < maxNumberOfMessages; fetchSize++) {
Message rc = iterator.next();
resultMessages.add(rc);
iterator.remove();
scheduleCancelInflight(receiveMessageRequest.getQueueUrl(), rc);
}
}
result.setMessages(resultMessages);
return result;
}
/*
* Cancel (put back onto queue) in flight messages if the visibility time has expired
* and has not been manually deleted (ack'd)
*/
private void scheduleCancelInflight(final String queueUrl, final Message message) {
if (scheduler != null) {
int visibility = getVisibilityForQueue(queueUrl);
if (visibility > 0) {
ScheduledFuture task = scheduler.schedule(new Runnable() {
@Override
public void run() {
synchronized (messages) {
// put it back!
messages.add(message);
}
}
}, visibility, TimeUnit.SECONDS);
inFlight.put(message.getReceiptHandle(), task);
}
}
}
private int getVisibilityForQueue(String queueUrl) {
Map<String, String> queueAttr = queues.get(queueUrl).getAttributes();
if (queueAttr.containsKey("VisibilityTimeout")) {
return Integer.parseInt(queueAttr.get("VisibilityTimeout"));
}
return 0;
}
public ScheduledExecutorService getScheduler() {
return scheduler;
}
public void setScheduler(ScheduledExecutorService scheduler) {
this.scheduler = scheduler;
}
@Override
public void deleteMessage(DeleteMessageRequest deleteMessageRequest) throws AmazonClientException {
String receiptHandle = deleteMessageRequest.getReceiptHandle();
if (inFlight.containsKey(receiptHandle)) {
ScheduledFuture inFlightTask = inFlight.get(receiptHandle);
inFlightTask.cancel(true);
}
}
@Override
public void setQueueAttributes(SetQueueAttributesRequest setQueueAttributesRequest) throws AmazonServiceException, AmazonClientException {
synchronized (queueAttributes) {
if (!queueAttributes.containsKey(setQueueAttributesRequest.getQueueUrl())) {
queueAttributes.put(setQueueAttributesRequest.getQueueUrl(), new HashMap<String, String>());
}
for (final Map.Entry<String, String> entry : setQueueAttributesRequest.getAttributes().entrySet()) {
queueAttributes.get(setQueueAttributesRequest.getQueueUrl()).put(entry.getKey(), entry.getValue());
}
}
}
@Override
public void changeMessageVisibility(ChangeMessageVisibilityRequest changeMessageVisibilityRequest) throws AmazonServiceException, AmazonClientException {
this.changeMessageVisibilityRequests.add(changeMessageVisibilityRequest);
}
}