I came across "Amazon SNS" it is also a message sending service having complete structure and components like in "Spring integration"(topic, endpoints, pub/sub, synchronous). But haven't found out are they similar things so one can choose as an alternative solution or are they working together to build messaging system?
I know Spring integration is a Spring framework component and work with only Spring Framework and seems like Amazon SNS can be used with Spring Framework or simple Servlet/JSP technology to achieve messaging.
Please shed light on my knowledge. Thanks
Related
Our application needs to read from Kafka and use Scatter-Gather/Aggregate pattern to do processing and finally writes to datastore. We are using Spring integration for couple of years and are really comfortable with it. However, we want to leverage Kafka Streams and have questions around Spring integration, spring cloud stream and spring cloud data flow
· Does spring-integration-kafka supports kafka streams or do i need to use spring-cloud-stream for using them? https://github.com/spring-projects/spring-integration-kafka . Are there any code examples?
· Is Scatter-Gather/Aggregator pattern supported in spring cloud stream and data flow? Would really appreciate if someone can share examples of how it can be implemented
· Can we mix and match spring-cloud-stream and spring-integration in one flow? If both the above are not possible, I am thinking more like use steam listener and then pass it to integration flow for using other patterns. Is that advisable?
·
Would really appreciate the guidance from experts. Thanks in advance.
I am new to spring integration, and was wondering if I can use spring integration in an application that is stand alone.
The various services or workflows are communicating via channels , by posting messages. I want to control the flow of application decoratively and I find spring integration quite interesting in this regard.
Please advice.
Yes; one of the design goals for Spring Integration was to enable loose coupling of components within an application where they exchange messages.
I have too many emails. I should write scheduler in order to send messages to them. Messages are different. I use spring framework 4.x.
I can write simple class, which connects to SMTP server. But in this case I should write my thread library too in order to send emails parallel.
Do spring have already written library which give me more flexible way to do this tasks? I do not want to use threads. It will be nice if spring already have this functionality.
Do I need Spring integration for this?
Best regards,
Yes, you definitely can do that with Spring Integration, because there is an ExecutorChannel implementation with can be supplied with an TaskExecutor from the Spring Core:
<channel id="sendEmailChannel">
<dispatcher task-executor="threadPoolTaskExecutor"/>
</channel>
<int-mail:outbound-channel-adapter channel="sendEmailChannel" mail-sender="mailSender"/>
But anyway you should keep in mind that all Spring Integration components are based on the Java and that ExecutorService is used on the background.
From other side if you need only the mail sending stuff from the Spring Integration, it would be an overhead and can simply use Core Spring Framework legacy like JavaMailSender as a bean and #Async for the sendMail method to achieve your parallel requirement.
UPDATE
could you tell me whether I need JMS for this situation?
I don't see any JMS-related stuff here. You don't have (or at least don't show) any real integration points in your solution. The same I can say even about Spring Integration just for email sending. However with the Spring Boot your SI config will be enough short. From other side if you'll study Spring Integration better eventually you'll get more gain to rely on the Integration components for your systems, as internally, as well as externally with other systems through JMS, AMQP, Kafka etc.
To be honest: a lot of years ago my first acquaintance with Spring Integration was due the requirement to get files from the FTP and have ability to pick up new files automatically. I found the solution only in the Spring Integration 1.0.0.M1. After that short XML config for the <int-ftp:inbound-channel-adapter> I loved Spring Integration and since that time it became as a part of my life. :-)
So, it's up to you to go ahead with Spring Integration in your simple app, or just follow with more formal solution with JavaMailSender direct usage.
You should use java executors framework. For example you can write something like the code below:
ExecutorService executor = Executors.newWorkStealingPool();
executor.execute(() -> mailSender.send(mail));
Spring integration is used to make the communication between two systems easier.
So does that mean the if two systems are talking using JMS queus, then we can remove queues and integrate two systems using Spring Integration Framework?
Looks like you should study more on the matter. I mean EIP-book, Spring Integration in Action or, at least the Reference Manual from Spring IO site.
The main Spring Integration goal is integration and JMS is only one way to do that.
If your two system can get deal with JMS, there is no stops to integrate them using Spring Integration: just provide JMS adapters for boht of them.
As per my understanding,
Spring Integration solution a framework level solutions to Design Patterns listed in http://eaipatterns.com/
I might be an alternate to ESB which is like one big tunnel & everything passes through that.
Spring Integration provides end to end message between different de-coupled, disparate connecting points.
On the other hand JMS is an API in the Java EE spec which can be used in conjunction with Spring-Integration.
You might as well want to read about AMQP which is a messaging protocol.
I am new to the enterprise integration area.
We have a requirement to develop a solution where multiple OSS (operations support systems) should talk to multiple EMS (element management systems) and network devices (Different transports and protocols has to be supported), solution should be such that, that it should run in Weblogic.
Queries
Which will be the best fit for this situation ESB/Apache ServiceMix/Spring Integration?
If we use opensource ESBs ( like WSo2 and Talend ESBs) I think we need to maintain two servers ESB server and Weblogic server and ESB/Weblogic integration will be an issue?
Apache servicemix or Spring Integration be deployed/run inside Weblogic?
Whether Apache ServiceMix is supported now, as I could see most updates are happening in fuse ESB only?
You need to analyze your scenario and then decide. If you need only transformation or alongside with a simple routing you can use some frameworks like smooks, camel etc.
You need to transform and still a lot of system involved where you need those transformed messages then you could use an ESB.
Then comes selecting the ESB product is also based on you application eco system. All products are amazing and each fits the better than the other in their own application eco system.
First you need to know a few things on Camel / Fuse ESB / Service Mix
All the above revolve around the same, each of them are projects where camel integration framework is the coding De fact o
1.Camel -- Integration framework and the De fact o coding way(sophisticated in its own way and much flexible)
2.Service Mix -- Container for deploying the your integration code. (Camel integration code)
3.Fuse ESB -- Enterprise Feather on the hat of Service Mix where it provides a Studio for coding , a list of components and wrappers like clustering and other facilities around service service mix
.
I would like you to also consider Mule ESB which could also and it will be a good contender in your list.
Some answers for your questions
1.You can deploy Camel code or the spring integration code into the what so ever container (all in the hands Maven and jar management thing you need to do....)
2.Service mix is a Apache license and is complete open source and if you need some support I suggest you to choose the FUSE ESB which is not part of JBoss family and powered by RedHat
Please follow this link below for more detailed discussion from other stackoverflow.com users
use the below for your analysis
Apache Camel and other ESB products
What is an ESB and what is it good for?
Messaging, Queues and ESB's - I know where I want to be but not how to get there
JMS and ESB - how they are related?