List of usage examples for com.amazonaws.services.sqs AmazonSQSClient receiveMessage
@Override
public ReceiveMessageResult receiveMessage(String queueUrl)
From source file:awslabs.lab31.SolutionCode.java
License:Open Source License
@Override public List<Message> readMessages(AmazonSQSClient sqsClient, String queueUrl) { ReceiveMessageResult receiveMessageResult; // TODO: Construct a ReceiveMessageRequest object using the queue URL provided. Set the maximum number of // messages to 10. ReceiveMessageRequest receiveMessageRequest = new ReceiveMessageRequest().withMaxNumberOfMessages(10) .withQueueUrl(queueUrl);/*from w ww. j a va 2 s .com*/ // TODO: Submit the request using the receiveMessage method of the sqsClient object. Store the result in the // receiveMessageResult object (already defined). receiveMessageResult = sqsClient.receiveMessage(receiveMessageRequest); return receiveMessageResult.getMessages(); }
From source file:awslabs.lab31.StudentCode.java
License:Open Source License
/** * Read up to 10 messages from the specified SQS queue with one request. Hint: Use the receiveMessage() method of * the client object. In the request, set the maximum number of messages to 10. * // w w w . ja v a 2 s .c om * @param sqsClient The SQS Client object. * @param queueUrl The URL of the queue containing the messages. * @return A list of messages from the queue. */ @Override public List<Message> readMessages(AmazonSQSClient sqsClient, String queueUrl) { ReceiveMessageRequest request = new ReceiveMessageRequest(queueUrl); return sqsClient.receiveMessage(request).getMessages(); }
From source file:com.comcast.cmb.test.tools.CMBTutorial.java
License:Apache License
public static void main(String[] args) { try {//from w w w.j a v a2 s.c o m Util.initLog4jTest(); //TODO: set user id and credentials for two distinct users // user "cqs_test_1" //BasicAWSCredentials user1Credentials = new BasicAWSCredentials("<access_key>", "<secret_key>"); BasicAWSCredentials user1Credentials = new BasicAWSCredentials("Z2DVBFRNZ2C2SSXDWS5F", "bH2UQiJkpctBaE3eaDob19fj5J9Q1FVafrZantBp"); // user "cqs_test_2" //String user2Id = "<user_id>"; String user2Id = "389653920093"; //BasicAWSCredentials user2Credentials = new BasicAWSCredentials("<access_key>", "<secret_key>"); BasicAWSCredentials user2Credentials = new BasicAWSCredentials("QL8Q1VOBCSJC5FZ2DMIU", "n6a82gyJZ04Z+Xqp7OgfqPtbbKqVc3UbuOTNrF+7"); // service urls //TODO: add service URLs //String cqsServerUrl = "http://<host>:<port>"; //String cnsServerUrl = "http://<host>:<port>"; String cqsServerUrl = "http://localhost:6059"; String cnsServerUrl = "http://localhost:6061"; // initialize service AmazonSQSClient sqs = new AmazonSQSClient(user1Credentials); sqs.setEndpoint(cqsServerUrl); AmazonSNSClient sns = new AmazonSNSClient(user2Credentials); sns.setEndpoint(cnsServerUrl); // create queue Random randomGenerator = new Random(); String queueName = QUEUE_PREFIX + randomGenerator.nextLong(); HashMap<String, String> attributeParams = new HashMap<String, String>(); CreateQueueRequest createQueueRequest = new CreateQueueRequest(queueName); createQueueRequest.setAttributes(attributeParams); String queueUrl = sqs.createQueue(createQueueRequest).getQueueUrl(); AddPermissionRequest addPermissionRequest = new AddPermissionRequest(); addPermissionRequest.setQueueUrl(queueUrl); addPermissionRequest.setActions(Arrays.asList("SendMessage")); addPermissionRequest.setLabel(UUID.randomUUID().toString()); addPermissionRequest.setAWSAccountIds(Arrays.asList(user2Id)); sqs.addPermission(addPermissionRequest); // create topic String topicName = "TSTT" + randomGenerator.nextLong(); CreateTopicRequest createTopicRequest = new CreateTopicRequest(topicName); CreateTopicResult createTopicResult = sns.createTopic(createTopicRequest); String topicArn = createTopicResult.getTopicArn(); // subscribe and confirm cqs endpoint SubscribeRequest subscribeRequest = new SubscribeRequest(); String queueArn = getArnForQueueUrl(queueUrl); subscribeRequest.setEndpoint(queueArn); subscribeRequest.setProtocol("cqs"); subscribeRequest.setTopicArn(topicArn); SubscribeResult subscribeResult = sns.subscribe(subscribeRequest); String subscriptionArn = subscribeResult.getSubscriptionArn(); if (subscriptionArn.equals("pending confirmation")) { Thread.sleep(500); ReceiveMessageRequest receiveMessageRequest = new ReceiveMessageRequest(); receiveMessageRequest.setQueueUrl(queueUrl); receiveMessageRequest.setMaxNumberOfMessages(1); ReceiveMessageResult receiveMessageResult = sqs.receiveMessage(receiveMessageRequest); List<Message> messages = receiveMessageResult.getMessages(); if (messages != null && messages.size() == 1) { JSONObject o = new JSONObject(messages.get(0).getBody()); if (!o.has("SubscribeURL")) { throw new Exception("message is not a confirmation messsage"); } String subscriptionUrl = o.getString("SubscribeURL"); httpGet(subscriptionUrl); DeleteMessageRequest deleteMessageRequest = new DeleteMessageRequest(); deleteMessageRequest.setReceiptHandle(messages.get(0).getReceiptHandle()); deleteMessageRequest.setQueueUrl(queueUrl); sqs.deleteMessage(deleteMessageRequest); } else { throw new Exception("no confirmation message found"); } } // publish and receive message PublishRequest publishRequest = new PublishRequest(); String messageText = "quamvis sint sub aqua, sub aqua maledicere temptant"; publishRequest.setMessage(messageText); publishRequest.setSubject("unit test message"); publishRequest.setTopicArn(topicArn); sns.publish(publishRequest); Thread.sleep(500); ReceiveMessageRequest receiveMessageRequest = new ReceiveMessageRequest(); receiveMessageRequest.setQueueUrl(queueUrl); receiveMessageRequest.setMaxNumberOfMessages(1); ReceiveMessageResult receiveMessageResult = sqs.receiveMessage(receiveMessageRequest); List<Message> messages = receiveMessageResult.getMessages(); if (messages != null && messages.size() == 1) { String messageBody = messages.get(0).getBody(); if (!messageBody.contains(messageText)) { throw new Exception("message text not found"); } DeleteMessageRequest deleteMessageRequest = new DeleteMessageRequest(); deleteMessageRequest.setReceiptHandle(messages.get(0).getReceiptHandle()); deleteMessageRequest.setQueueUrl(queueUrl); sqs.deleteMessage(deleteMessageRequest); } else { throw new Exception("no messages found"); } // subscribe and confirm http endpoint String id = randomGenerator.nextLong() + ""; String endPointUrl = CMBTestingConstants.HTTP_ENDPOINT_BASE_URL + "recv/" + id; String lastMessageUrl = CMBTestingConstants.HTTP_ENDPOINT_BASE_URL + "info/" + id + "?showLast=true"; subscribeRequest = new SubscribeRequest(); subscribeRequest.setEndpoint(endPointUrl); subscribeRequest.setProtocol("http"); subscribeRequest.setTopicArn(topicArn); subscribeResult = sns.subscribe(subscribeRequest); subscriptionArn = subscribeResult.getSubscriptionArn(); if (subscriptionArn.equals("pending confirmation")) { Thread.sleep(500); String response = httpGet(lastMessageUrl); JSONObject o = new JSONObject(response); if (!o.has("SubscribeURL")) { throw new Exception("message is not a confirmation messsage"); } String subscriptionUrl = o.getString("SubscribeURL"); response = httpGet(subscriptionUrl); } // publish and receive message publishRequest = new PublishRequest(); publishRequest.setMessage(messageText); publishRequest.setSubject("unit test message"); publishRequest.setTopicArn(topicArn); sns.publish(publishRequest); Thread.sleep(500); String response = httpGet(lastMessageUrl); if (response != null && response.length() > 0) { if (!response.contains(messageText)) { throw new Exception("message text not found"); } } else { throw new Exception("no messages found"); } // delete queue and topic DeleteTopicRequest deleteTopicRequest = new DeleteTopicRequest(topicArn); sns.deleteTopic(deleteTopicRequest); sqs.deleteQueue(new DeleteQueueRequest(queueUrl)); System.out.println("OK"); } catch (Exception ex) { ex.printStackTrace(); } }
From source file:org.apache.nifi.processors.aws.sqs.GetSQS.java
License:Apache License
@Override public void onTrigger(final ProcessContext context, final ProcessSession session) { final String queueUrl = context.getProperty(DYNAMIC_QUEUE_URL).evaluateAttributeExpressions().getValue(); final AmazonSQSClient client = getClient(); final ReceiveMessageRequest request = new ReceiveMessageRequest(); request.setAttributeNames(Collections.singleton("All")); request.setMessageAttributeNames(Collections.singleton("All")); request.setMaxNumberOfMessages(context.getProperty(BATCH_SIZE).asInteger()); request.setVisibilityTimeout(/*from w w w.j a v a 2s. com*/ context.getProperty(VISIBILITY_TIMEOUT).asTimePeriod(TimeUnit.SECONDS).intValue()); request.setQueueUrl(queueUrl); request.setWaitTimeSeconds( context.getProperty(RECEIVE_MSG_WAIT_TIME).asTimePeriod(TimeUnit.SECONDS).intValue()); final Charset charset = Charset.forName(context.getProperty(CHARSET).getValue()); final ReceiveMessageResult result; try { result = client.receiveMessage(request); } catch (final Exception e) { getLogger().error("Failed to receive messages from Amazon SQS due to {}", new Object[] { e }); context.yield(); return; } final List<Message> messages = result.getMessages(); if (messages.isEmpty()) { context.yield(); return; } final boolean autoDelete = context.getProperty(AUTO_DELETE).asBoolean(); for (final Message message : messages) { FlowFile flowFile = session.create(); final Map<String, String> attributes = new HashMap<>(); for (final Map.Entry<String, String> entry : message.getAttributes().entrySet()) { attributes.put("sqs." + entry.getKey(), entry.getValue()); } for (final Map.Entry<String, MessageAttributeValue> entry : message.getMessageAttributes().entrySet()) { attributes.put("sqs." + entry.getKey(), entry.getValue().getStringValue()); } attributes.put("hash.value", message.getMD5OfBody()); attributes.put("hash.algorithm", "md5"); attributes.put("sqs.message.id", message.getMessageId()); attributes.put("sqs.receipt.handle", message.getReceiptHandle()); flowFile = session.putAllAttributes(flowFile, attributes); flowFile = session.write(flowFile, new OutputStreamCallback() { @Override public void process(final OutputStream out) throws IOException { out.write(message.getBody().getBytes(charset)); } }); session.transfer(flowFile, REL_SUCCESS); session.getProvenanceReporter().receive(flowFile, queueUrl); getLogger().info("Successfully received {} from Amazon SQS", new Object[] { flowFile }); } if (autoDelete) { // If we want to auto-delete messages, we must fist commit the session to ensure that the data // is persisted in NiFi's repositories. session.commit(); final DeleteMessageBatchRequest deleteRequest = new DeleteMessageBatchRequest(); deleteRequest.setQueueUrl(queueUrl); final List<DeleteMessageBatchRequestEntry> deleteRequestEntries = new ArrayList<>(); for (final Message message : messages) { final DeleteMessageBatchRequestEntry entry = new DeleteMessageBatchRequestEntry(); entry.setId(message.getMessageId()); entry.setReceiptHandle(message.getReceiptHandle()); deleteRequestEntries.add(entry); } deleteRequest.setEntries(deleteRequestEntries); try { client.deleteMessageBatch(deleteRequest); } catch (final Exception e) { getLogger().error( "Received {} messages from Amazon SQS but failed to delete the messages; these messages" + " may be duplicated. Reason for deletion failure: {}", new Object[] { messages.size(), e }); } } }