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Which ecommerce platform is better in JAVA Broadleaf or apache ofbiz. If there are any better than these two please suggest..
I work for Broadleaf Commerce. One of the key differences is the stack. Broadleaf leverages the Spring framework (e.g. Spring Security, Spring-MVC, and core Spring) along with JPA/Hibernate as the primary underlying architecture.
OfBiz is a popular eCommerce tool designed with all the integrations for Supply Chain Management or ERP based solution. I think broad leaf is a basic eCommerce tool, need to be integrated with all the SCM solutions, ofcouse it is easy to integrate with other tools. DataFile tool of ofBiz is superior for data import and export operations.
There is one company who has completed a benchmark test on some popular Open Source ecommerce platforms, including themselves along with Broadleaf, and Apache OfBiz. I’d say it’s worth checking out. The stats produced are very interesting! Anyways here is the link, and their product is Avetti Commerce: http://www.avetticommerce.com/ecommerce-performance-benchmarking
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Closed 8 years ago.
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I'm trying to find big open source projects that use Gradle as a build system. I found only Grails, Spring, Hibernate.
Are there any others?
There are many others. Some that I can recall off the top of my head:
Many projects in the Spring IO platform (not just the Spring framework)
Tapestry
Groovy
Griffon
Qi4J
All Netflix open-source projects
Some more popular projects that use Gradle: Groovy, Mockito and of course Gradle itself :)
And in my point of view the most important one: Android SDK uses Gradle in newer versions to build apps!
Edit: But there are also big companies that use it. You can see some if you go to the Gradleware website and scroll to the end of the page.
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I installed cassandra (on ubuntu) and I think it's convenient and good. But I didn't build a complete app and further on I expect that I must deliver something like full-text searches and even something like search suggests (with AJAX). I know there are API:s that can do functions like "search suggest" (e.g. JQuery plus some http access to your data can make search suggest with AJAX) so now I wonder if we must build ourselves a search API for cassandra or if there already are some available?
Unfortunately, there really isn't a good way to do that with vanilla Cassandra, so you're going to have use an additional search tool like Solr. DataStax has a product (DataStax Enterprise Edition) that tightly integrates Cassandra with Solr (for searching). Here's a link to the DSE download page. You can try it out in your DEV environment for free. They also have a tutorial on how to get a simple column family indexed in Solr.
Otherwise, you can integrate Cassandra with Solr on your own, too. But the nice thing about DSE, is that they take care of the Cassandra/Solr integration. Also, DSE is currently on Cassandra 1.1.x (I forget the exact version) so if you need to use 1.2.x, you'll have to integrate with Solr on your own anyway.
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I am considering building a Java EE based set of services and licensing these services to my clients. While we will aim to make these services generic for any client, reality is that customizations and new services will be needed on a client specific basis.
Likely the stack will be a Java application deployed to the EC2 cloud, possibly leveraging a framework such as Spring.
What architecture would one prescribe to have a hosted application for my clients, but also enable them to build their own custom extensions. Does anyone have technical or business example of a company that has built a hosted SaaS service that is extensible on the platform side?
I haven't done this yet, but AFAIK you could use module systems such as OSGi also on the server side to write modular, extensible server side applications.
Atlassian does this. You basically pay to have even its own source code, as well as a Platform SDK, or even a Managed Instance (this one, however, seems not extensible)
Internally, most of them rely in an OSGi Container (I think its Felix), so it manages dependencies accordingly, as well as DI and Extension Points. Perhaps might be worth it to have a try
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I'm looking for a Java open source project for an academic study on test cases.
I need a project with 20-40 KLOC and at least a 100 JUnit tests.
A project that was developed using TDD methodology is prefered.
Something that I can drop in eclipse and run all the tests with minimal overhead for setups.
Any recommendations?
It's amusing that you say "drop in eclipse", as some parts of eclipse were written with TDD and have relatively large numbers of LOC. You may want to go that route. I know, for example, that the Eclipse-based FORTRAN IDE project is one such endeavor.
The Spring framework? May be too large perhaps.
There are any number of projects you can use. You could look at the BouncyCastle encryption library.
http://bouncycastle.org/java.html
To help with your search, you could have a look at Koders (http://koders.com/), the source code search engine. They have information about LOC for open source projects.
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What is the best open source java workflow framework (e.g. OSWorkflow, jBPM, XFlow etc.)?
Here's an article that compares kBPM, OpenWFE, and Enhydra Shark that looks like it has some good, thorough info.
It depends what kind of initial investment you want to make. jBPM is the best in terms of features and flexibility, but OSWorkflow is a more lightweight, easier to get up and running and has with a smaller learning curve.
Drools Flow is the best workflow solution that I came across recently. It has a luxury to be better than other solutions, since it is built and designed recently, and based on lessons learned from other long existing, somewhat over engineered frameworks.
Drools Flow comes as a community project along with an official Drools 5 release that besides Flow includes: Guvnor, Expert and Fusion.
Unfortunately Drools Flow does not have an official Red Hat support contract yet, and that is a stopper for some big corporations to consider it. One might think the support is not there for political reasons due to the jBPM project living under same support roof.
I'll cast a vote for jBPM. We used it on a larg-ish ETL platform in-house and it seemed to work quite well. I don't have anything to compare it to, however.
YAWL - Yet another workflow Language
http://en.wikipedia.org/wiki/YAWL