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LIFERAY - Java Portlet System - One Man's Opinion, from http://sadsoftware.blogspot.in/2009/02/things-you-should-know-about-life...

A few days ago I wrote a goofy post about the current state of open source Java-based portal software in which I half-concluded that Liferay is the only choice worth considering, and that unfortunately Liferay will drive a person completely insane.

I stand by my claims, but after the comments I received I think that I need to let people know where I'm coming from. What I want from a portal is an out-of-the-box collaborative experience to synergize my enterprise. But seriously, what I want is an application that can satisfy two basic requirements:

1) The application should provide all of the basic collaborative features that one would expect to use here in 2009. What does that mean? It means wikis, blogs, forums, chat, file sharing, etc. These are not things that I want to spend time implementing.

2) The application should be extensible. This is the whole point of a portal, and all portal applications meet this requirement.

Given these requirements and then considering the sorry state of open source portlets, the only choice worth considering is Liferay. The whole point of Liferay is that BAM, your Intranet portal is up and running and usable, and you can get on with implementing the important bits that are specific to your business.

When you first install Liferay, it's a very "WOW!" experience. It actually starts up and works and looks slick. Drag & drop, tons of portlets, etc. For a good week or so you can have a lot of fun setting it up and showing it off; your friends and collegues will be amazed! But when you actually start to get in to the nitty gritty of your Liferay implementation, things start to fall apart.

I spent a fair bit of time trying to decide if I should write this post or not. On one hand I'm really starting to like the Liferay community, and the developers seem like good people. On the other hand, there's not a lot of information out there about Liferay and I feel like the whole point of the "blogosphere" is to share our experiences for the betterment of all. Everything I'm writing here is based on my own personal experience with Liferay, and unfortunately, just about everything I write from here on is going to be negative.

Advice about Liferay in the Enterprise (or just your Business):

1) Liferay security is extremely poor.

I know that this might be a little controversial as I've read other blogs praising Liferay's permissions system... but really, just because something is really hard to understand doesn't mean that it's good, or even working.

If you're setting up Liferay in your business, then it's imperative that you test and re-test the restrictions in place on every single bit of data that you're exposing through your portal. One of the biggest problems I've had with Liferay is little pieces of confidential information showing up here and there for people who should not have access to it.

For example, the search portlet *will* comprimise security by showing search results, complete with abstracts, to users that should not have access to them. If you have a wiki hiding somewhere in a closed community, and have the tightest permissions on that thing you can possibly set, the search portlet is still going to show results from that wiki to every knucklehead on the site. The reason for this is that Liferay's opensearch implementation doesn't yet do "Liferay permissions." There's no big warning anywhere about this, so hopefully you found out about it by reading this instead of the hard way. My advice: do not use the search portlet.

Another example is the fine-grained permissions for each portlet. Often times they simply do not work correctly. Take the message board: if you create a restricted category (e.g. "forum"), then the posts in that category do not inherit its permissions, and are viewable by anyone with a link. Then, even if you lock down the security of each post in the restricted category, the post title and abstract will still appear to anyone who clicks the "Recent Posts" tab! This problem isn't isolated to the message board; I've found similar behavior in the document library and blog portlets. My advice: do not use fine-grained permissions in Liferay. I should also note that the activities portlet doesn't respect fine-grained portlet permissions at all.

If the above aren't enough to make you uneasy, then there is also a report of an NTLM bug in which any non-domain user can login as any user with a blank or random password. This is a big one, and one that should have been nailed immediately. That it existed in 5.1 and still exists in 5.2.1 is inexcusable. My advice: do not expose your Intranet portal to the outside world.

2) Liferay is very buggy.

It seems like everytime I try to set something up, whether it be a wiki or a blog or whatever, I run into some maddening bug. For instance when editing a wiki page or forum post, all of the new line characters disappear! This makes the entire wiki virtually unusable or at least a significant pain in the rear. A bug report was filed for this one and a fix has been committed, but the problem exists in the default 5.2.1 package that you're going to download. Heck, it even exists on the Liferay community site itself.

Aside from that I've seen 3rd party portlet javascript completely break Liferay's javascript, bugs in the new scoping feature, portlets that simply don't install or work, and a variety of other flaws. Without going into detail about every annoying little thing that I've run across, I'll just leave you with this: be prepared to download the Liferay source and do a bit of patching yourself.

There are hundreds of bugs in the Liferay JIRA, and something like 75+ critical bugs. They don't seem to get patched up very quickly. I know the developers are doing the best they can.

3) Documentation is hit or miss.

The Liferay Administrator's Guide is fantastic. Unfortunately, it's for 5.1 and some important bits aren't going to work for 5.2. Things like database configuration. The Liferay wiki is ok, but I really have a hard time using it. For whatever reason, it's very hard to drill down to topics that are relative...everything's in this search view that returns way too many results. I hate wikis for technical support anyhow because the information is almost always incomplete or out of date.

4) Community is hit or miss.

The community can be really great, and it can also be really bad. What I've found is that a single user who really gets on the ball in the forums can start a chain reaction and forum usage goes up. All too often, however, the forums seem to wither and a lot of posts with good questions go unanswered.

If you're going to use Liferay, then I recommend getting active in the community, and don't let your questions go unanswered. Bump away. The traffic on the forums isn't very high so nobody is going to get too upset.

5) The permissions system is whack.

There's a hilarious diagram in the Liferay Administrator's Guide that is intended to make the permissions system easy to understand. On the contrary, it just demonstrates the complexity. Maybe I'm "old school" or something, but users and groups are just fine. Want to throw in roles? Fine. But I don't need communities and organizations and locations and public and private pages and everything else all mixed up with users and groups and roles.

Here's what I recommend: assuming that you're going to want to bring your users in from LDAP or some external source, don't bother using Liferay organizations. The idea behind organizations is interesting, but the benefits of using them are very few and I've run into more bugs due to the added complexity. Instead, just use Liferay communities. Unlike organizations, user groups can be associated with communites, which allows you to grant access to a particular community to a user group that you've imported via LDAP. This way you can manage your users in a more centralized way, which is sorta the whole point of LDAP.

Another recommendation: use public pages sparingly. From what I can tell, public pages in Liferay are groups of pages with Guest access hard wired to "on". I can't think of many good reasons for this in a corporate environment, especially if you occasionally have guests on your network.

6) Liferay releases are... odd.

Be very careful before deciding to upgrade to the latest release of Liferay. With 5.2 we saw changes to database setup that were sort of hard to find, a bunch of example data that had to be physically removed, and a whole bunch of portlets and themes that took a month or so to be released.

7) Performance is pretty poor.

Now maybe I'm being too harsh, but the requirements for running Liferay are pretty high. Be prepared to dedicate a server instance to Liferay with a couple gigs of memory and a decent CPU.

Ok, so I think I've covered everything that's bothered me about Liferay thus far. Reviewing my list, it almost seems like Liferay could use some real business-grade suit-and-tie management to make sure that priorities are set and that the project as a whole moves in some well-defined direction. With things like Social Office taking up developers time, I really don't see the overall quality of Liferay improving much. Given that, it's important to take it for what it is and work around its problems and limitations because it is a good product. It's miles ahead of the other portals out there in terms of end user experience, administration, and simply getting a full-featured portal up and running in short order.

Nestor Ledon said...
Liferay is pretty bad. Compare all its aspects to Joomla! and there will be a clear victor. For an "Enterprise Application" build on J2EE and Struts/Spring/Hibernate, Joomla!'s little PHP core makes it look like a joke.

jason alexander said...
After working with Liferay 6.1.1 CE GA2 for a year, I share any frustration. Our team mistakenly chose it so that we could extend it, just for it's base functionality, and use it in a cluster. The liferay website and feature list was appealing, but deceiving.

1. It _is_ really buggy, jumbled together and a disappointment to extend and develop with. Our team regrets going with it because we constantly have to work around the limitations. We have issues such as an unnecessary two-step deploy that changes the web.xml and adds a couple of jars, and broken pages that require full page loading to get some resources when a portlet is added, (despite the fact that it loads a small country worth of unused javascript and css into the browser when you load an empty page).

2. The fact that it is only available in 'kitchen sink' format ruins it's future, because if I wanted to submit fixes, improvements or fork it, I don't have a 'platform' that is clearly separated from all of the portlets, and modules. This is why Eclipse has a base platform.

3. Indeed - it's missing a common architectural vision and thus you will see dozens of conflicting frameworks patched together like a drunken picasso. The code is organized okay, but the implementation overall is very funky.

4. Sympathies if you run this in a cluster, or on a commercial container like Weblogic or WebSphere. Users, Groups, preferences don't cross between servers well, and some users or preferences only show up on some servers, even though they all use the same DB.

5. I should _never_ _ever_ need to unpack and modify an _ear_ or the guts of a packaged and distributed application (liferay.war or tomcat dist). Yet, that's status quo when working with Liferay. When we upgrade, we cannot just install a new WAR, or distribution - we have to re-create any relevant hacks, that we had to do to the previous version, in the new one.

Save yourself some time and check back in 2015, to see whether Liferay is still a mess.

Consider Sencha Ext JS or build it yourself. It'll be less frustration.

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