I have been playing around with the Java server example:
https://github.com/FineUploader/server-examples/tree/master/java
Its working great with chunking enabled, however I don't believe it supports chunking with the concurrent:enabled feature turned on in the JS client. Is this feature working in the Java server? Is there any plans to get this to work? Additionally, if not, any quick tips as to where to add this feature into the example code? I would be happy to implement this if needed..
Cheers!
J
Is this feature working in the Java server?
Yes, this is fully functional with any server. The Java example in the server-examples GitHub repository does not have code to handle this for traditional endpoints, but concurrent chunking will work fine without any code changes when uploading to S3 or Azure.
Is there any plans to get this to work?
No plans at the moment to update the traditional endpoint Java server example.
any quick tips as to where to add this feature into the example code?
You can follow the implementation in the Node.js example, along with the concurrent chunking documentation.
Related
I have seen the sample projects on your website for Dexie.Syncable such as sync-server and sync-client and they all seem to write to a datbase directly vs interacting with a web api. I am looking for a little help in where to get started beyond the examples on the website. The api I am trying to write a gateway for is dreamfactory
Also it looks like version 2 beta has had many improvements to Dexie.Syncable
I would recommend to build a new server-project based on either WebSocketSyncServer.js or the github repo of sync-server. However, I cannot give the details on how to call REST APIs instead of working directly towards database or memory. I would suggest using ES2016 async/await since your API calls are asynchronic.
Maybe you could try getting more help on https://github.com/nponiros/sync_server by filing an issue there.
I have been working on a mobile app that sends an ajax call to the server and waits for a response from the server in json format.
I am wondering from the server side, how to respond to an ajax call? Could someone give me an example in code?
I check the server code of my project (written by other members of the team) and could not understand it. I can only see it is written in java and also some keywords such as apache, springframework, etc pop up. I am a total newbie for server side programming and I want to learn more about it. Could someone give me some tips on how to get started with those as well? How does a server work? Is it just like responding to various request? What language could you use to build it and what is Apache? I know this looks like a lot of questions so probably I need to get some basic knowledge first. Any help/tips/suggestions on readings is appreciated.
This is kind of a broad question, as there are a lot of different server-side technologies that can handle server side AJAX requests, but if you want to go the Java route, using Spring Framework makes it very easy.
Spring Framework is a large open-source Enterprise Java framework that has a variety of features which entire books rarely even cover.
(Apache is an open-source project that contains over a hundred different sub-projects, the most popular being a web server.)
Spring does have some specific tools to handle REST calls. Assuming your AJAX is making a REST call (which is what it sounds like), and your project is already using Spring framework, it is fairly straightforward (assuming you already know Java). The Spring framework handles all the hard stuff for you. There are a few different ways to do this using Spring, but check out this link for creating a simple REST service:
https://spring.io/guides/gs/rest-service/
Another route would be to look into PHP, which is a server-side scripting language. With PHP, you can handle AJAX requests without the need for an application server (most basic web servers speak PHP). There are plenty of good resources for this, but one of my favorites is http://www.tutorialspoint.com/php/
BTW - the TutorialsPoint site is great for Java and Spring as well
I am new to Jmeter. I have requirement for run load test for Infinispan distributed mode using hot rod client server on Jmeter.I have Infinispan clusted server available and running using some application. Please someone guide me to write Jmeter script for this.
Thanks in advance.
Regards,
Mahesh Bubanale
As far as I understand you shouldn't be testing Infinispan itself, I believe that it's tested by other people and considered reliable. My expectation is that you need to test an application, which is using Infinispan to implement some clustering functionality. If so and your application is web-based you can use JMeter to produce load and insert some assertions into your code to check that your test data is being correctly replicated. The best way to start with web application testing is recording your test script via JMeter HTTP Proxy server.
If I'm getting you wrong and you need to explicitly test Infinispan HotRod endpoint, JMeter doesn't support HotRod protocol out of box. You'll need to get relevant libraries (.jar files) which implement org.infinispan.client.hotrod.impl.protocol with dependencies, drop them to /lib/ext folder of your JMeter installation and after that do one of following:
Develop a custom JMeter Sampler containing protocol implementation details, arguments, entrance and exit criteria, etc.
Create a Java Request similar to option 1
Use BeanShell samplers to represent your test cases.
Hope this helps
If you want to load test Infinispan Hot Rod server, you can use some Grinder scripts I created a while back. We've got some instructions here but they're a bit outdated. Maybe you can help us update them and convert them to talking to Infinispan Server distribution and update to version 6.0? :)
Otherwise, if you want to test Infinispan embedded/library mode, we've RadarGun which is a benchmarking framework for data grids.
I would like to create a web page which would allow multiple users to work together on a page, Imagine a web based editor that allowed to users to change the documents as an example of this type of feature.
How would more experienced programmers go about implementing this as i really cant seem to formulate any way to even begin going about this task. Would there be any programming librarys that make implementing this feature easier or is it just too complex to even think about?
I am creating this webapp primarily using GWT and SmartGWT if that helps.
Thanks for any input you may have.
There is indeed a cometd-like library for gwt - http://code.google.com/p/gwteventservice/
Wiki:
In web development, Comet is a neologism to describe a web application model in which a long-held HTTP request allows a web server to push data to a browser, without the browser explicitly requesting it. Comet is an umbrella term for multiple techniques for achieving this interaction. All these methods rely on features included by default in browsers, such as JavaScript, rather than on non-default plugins.
In practice:
In normal way client can receive resources by request->responce. It is no possible to send data directly to client without request. With comet you can hold realtime connection between client and server and exchange data in realtime.
Check out: docs.google.com. They are using comet.
Etherpad.com is a service that used to do this. It has been since bought by Google, and the code released as open-source. You can see several links on the etherpad.com page for the source download and related information.
I'm relatively new to the whole AJAX way of doing things so please excuse me if I'll mix two different things (although I'd appreciate it greatly if you could comment me on that).
My question is this:
I have many web clients (lets say around 1500) whom I want when starting up to "subscribe" to the web server with some sort of Id and then I want the web server (APACHE) to send them a relevant url (build dynamically doesn't really matter for this purpose) to display (sort of redirect).
Now my problem is basically that I've spent the last few days reading a lot of articles and howto's on how this should be done and I think I have too many buzz-words.
I think that in order to solve my problem I need some sort of implementation of COMET with something called "continuations" (to support that many clients). Is that correct?
Am I going down the right path?
Does GWT have any connection with this?
Thank you all very much in advance
EDIT: After reading some more I think that basically the Java Servlet 3.0 Asynchronous support is exactly what I need on the server side (correct me if I'm wrong) and I'm still debating on the client side? Maybe GWT after all?
Thanks
OK, so I indeed was making a bit of a mess earlier and I'm putting it out there so my nonsense doesn't confuse anyone.
What I was looking for was asynchronous request support both on the server side, regarding the thread handling to allow many users and scalability, and on the client side for ease of use of the Comet patter.
I've found that Jetty, Tomcat and Grizzly all offer a solution for this (just search the specific server with Comet and see what they offer) but I've decided to use the Servlets 3.0 spec as supported in Glassfish even though it will only be released with Java EE 6 as to not be tied down to a specific server.
On the client side I will probably go with GWT for many other reasons not related to Comet and because it has sufficient support for Comet.
Thanks
You may want to try StreamHub Push Server and the accompanying GWT Comet Adapter. This will give you a scalable Comet server and a GWT Client-side.