Incremental Publishing in Eclipse for Static Web Project - eclipse

I have a static Web project added to an Apache server. Whenever I make a change to the project, regardless of how small the change is, the entire project republishes instead of the individual file. I was under the impression that the publishing process was supposed to keep a delta and only republish the files that have been marked as changed in the delta.
I wouldn't mind if the project were small, but it's a large project (200+ MB) and the connection to the server I'm publishing to is a bit slow. A republish takes anywhere between 15 minutes and a half hour.
Does anybody know if my install of Eclipse is working as expected?
Environment Specifics:
Eclipse Galileo
Aptana Studio Plug-in 1.5.1

Maybe you've found a bug. Try rsync instead.
There was a bug about delta publishing, but it should be fixed by now. And from other Eclipse projects, I assume that they added a test case for this, so it shouldn't happen again. But maybe your circumstances trigger a new bug.
Are you manually changing the files or do you use some script outside of Eclipse? Anything that makes Eclipse think the whole project has changed, will trigger a full redeploy.

Related

Eclipse, maven, tapestry, tomcat auto load

I'm running eclipse mars EE. I have a maven project with tapestry 5.4.1. I have tomcat 7 maven plugin and everything is working fine except I'm not able to immediately see changes to tml and css files. When I make a change to any file it's eventually reloaded but it takes time which slows development. I want to be able to see css and tml changes instantly. I can wait for java changes until tomcat reloads them but I can't wait for css and tml changes.
I've read several articles on configuring the tomcat server within eclipse including this stackoverflow entry
However, they don't seem to work or achieve what I want. It seems the issue lies in the fact that tomcat has to wait for a new jar/war to be created and deployed instead of pulling the files directly from the project.
Also, I'm aware of Tapestry's class reloading feature....which doesn't seem to work either. Perhaps my project isn't configured correctly? Here is a screen shot of my project
There MUST be a way to accomplish this. We've all been writing web apps for tomcat in eclipse for 15 years!
Thanks for your help!
It sounds like you may have several issues that are described in the "Troubleshooting Live Class Reloading" section at the bottom of the https://tapestry.apache.org/class-reloading.html page. Please read the Tomcat-specific help at http://www.tynamo.org/Developing+with+Tomcat+and+Eclipse/ if you haven't already.

Eclipse project build takes a long time

I'm working with a decent sized application (300-350MBs) in my Eclipse IDE. All is well, but when I modify a source file (i.e. MyServlet.java), I can't see any changes until I clean the project, which in turn runs a project build. Due to the size of my project, this build takes about 3-5 minutes.
I guess what I'm asking is if there's a faster way to update changes made to my source files, so that whenever I need to debug, I don't have to wait 5 minutes for every minor change.
What I've tried so far:
Restarting the server
Refreshing the project
Restarting Eclipse
Committing to the SVN
Clearing my browser cache
There is a dedicated tool for that: JRebel. Problem is that you need a licence.
But what you really need to do is to recompile changed class. In your case if this is a Servlet you also need to deploy it to server (+some servers support 'hot-deploy' and some don't, I.e. do you have to restart the server)

Moving my GWT, GAE installation into my project for source control

I use the google plugin for eclipse with GWT and Appengine libraries. Every so often I upgrade one of the libraries, which currently involves:
I install the update somewhere on my HD
I add the update as an alternative SDK in eclipse, with a generic name
I update the project settings to point to the new generic name
I commit the changed settings files (which do NOT include the upgraded library) to our source control
The problem here are in unfortunate steps 5-7:
5 Everyone else's builds stop working past the change,
6 I go from machine to machine, repeating steps 1 and 2, and
7 I think for the nth time, "I should really find a way to automate this."
I'm here for the elusive step 8: Actually automating this. I want to include the SDK in my source control, so when I switch between versions or set up shop on a new machine, the relevant SDKs are automatically installed and downloaded. I don't want to have to configure eclipse settings at all. In my ideal situation, I am willing to install Eclipse and the GPE on each machine, but after that I just want to clone my repository and go.
I've tried doing this by removing the GWT library from my build settings, copying the entire GWT installation folder into the root of my project, and adding gwt-user.jar and gwt-dev.jar to the build path from there. This almost works, but eclipse complains that it can't find gwt-servlet.jar (even though it exists precisely where it claims to be looking for it!). There also seem to be other magical settings I don't understand.
Finally, the question: If this is the right track, what settings do I need to manually control? If this is the wrong track, what's the right one?
+1 good question. This may or may not answer your question, but I can share with you what I do. I also work with GAE and GWT.
I just include the SDK .tar/.zip files in my repository, remove the version numbers from the filename, and update it when I want to move to a new version. If that version migration fails, I can easily revert to the old SDKs. I also use GXT and a bunch of other GWT extensions, so my problem is even worse than yours. I don't use eclipse for GAE nor GWT, so I can't relate to the problems you are having there. If you don't want to have to configure eclipse every time, then don't use eclipse.
Disclaimer: I hate eclipse.

Java maven development slow

I am developing a war/java website that is built via maven.
Currently, I have to make changes... tell maven to build them... then deploy to Tomcat. This is around 40seconds. So every change I make, I have to wait >=40seconds to see the change.
This is becoming very frustrating, so I have tried to speed up the deployment. I deployed the site via maven with war:exploded. Now, I edit the files live in 'deployed' format. The problem being I will need to move these changes back to the source location for pushing into our source control.
So has anyone written a script to 'undeploy' changes on the server carefully pointing them back to where maven expects them to be, or found another way I can instantly see my changes in a web browser. Rebuilding from source everytime is not a fun solution.
Currently, I have to make changes... tell maven to build them... then deploy to Tomcat. This is around 40seconds. So every change I make, I have to wait >=40seconds to see the change.
This is just a wrong way to use Maven in my opinion.
Either use something light like jetty:run (and hook Eclipse remote debugger to enable hotswap), see Configuring Jetty, Maven, and Eclipse together with Hot Swap.
Or use Eclipse WTP and deploy your project on a Tomcat server inside Eclipse (your project can be recognized as a Dynamic Web project whether you're using m2eclipse or the Maven Eclipse plugin).
Have you tried JavaRebel?
http://www.zeroturnaround.com/jrebel/
Use hot-deployment.
Just configure tomcat-maven-plugin and try tomcat:redeploy.

Can I update the HTML files using Wicket and Eclipse without recompiling the classes?

I'm using Eclipse and Maven-2 and I'd like to be able to edit my HTML files without "it" (not sure if it's Eclipse or Maven) recompiling my application. I understand that usually Eclipse tries to do a hot replace of new compiled Java classes with Eclipse and Tomcat.
Can I use something like this?
getResourceSettings().setResourcePollFrequency(null);
I know I can turn auto update off for Tomcat in Eclipse but I'd like the HTML file to update and the classes not to update if possible.
BTW, my primary concern is that Tomcat tends to get Perm gen errors after I (hot) reload too many java classes.
You're sort of correct, you're supposed to use setResourcePollFrequency(Duration.ONE_SECOND); or similar. This link has more detailed information. However what I've found is that due to Wicket's caching internal cache containers like to get really messed up after any hotswapping so you may just have to learn the hotkey for restarting Tomcat or start doing Wicket development with the integrated Jetty and WicketTester.
You may want to consider increasing the permgen space when you run eclipse. There is a command line argument:
eclipse [normal arguments] -vmargs -XX:PermSize=64M -XX:MaxPermSize=128M
(copied from:)
http://wiki.eclipse.org/FAQ_How_do_I_increase_the_permgen_size_available_to_Eclipse%3F
I am not sure offhand how to prevent wicket from reloading HTML files but I will see if I can find it.
Edit:
If setting the poll frequency to null doesn't work, try using Duration.MAXIMUM. Also, you can uncheck "Build Automatically" in the eclipse Project menu, though this is more of a hassle then it's worth, IMHO.
According to the wicket FAQ, wicket only reloads changed markup files when you explicitly set the resource poll frequency:
http://www.wicketframework.org/faqs.html
I am not sure how to prevent eclipse from copying altered files to the output aside from disabling build automatically.
If Build Automatically is enabled (it is by default: Project->Build Automatically) then any modification to the project files will trigger the build, regardless of whether they are in source folders or not.
I always work with Build Automatically disabled as I find it too intrusive (for reasons like this), and just hit ctrl-B when I want the project to build, or alt-P N to launch the clean dialog if needed.
I understand you're using (and might want to keep using) Tomcat, but during Wicket development you can run the supplied Jetty server onder /src/test/java/com/your/package/Start.java in debug mode to get this behaviour.. Set Wicket to development mode to use this feature.
HTML files or jsp files?
Are you using tomcat? If you are editing only html files, go ahead and change them as you wish. As long as you don't deploy them somewhere else for tomcat to fetch them, you'll see the update(s).
If it's jsp, save your new file, delete the files under the old work folder. This will make tomcat think it's the first time the file is requested and it will re-compile the jsp on the fly.