We are developing an Eclipse plugin for graphic editing of task graphs and then stores the serialized version in XML. We have used EMF and GMF to build our plugin, and were able to package and test it on win32 systems.
However, when we try to use install on other systems (64-bit windows, Linux), we get the
requires 'org.eclipse.core.filesystem.win32.x86[1.1.200.v20100505-1235]'
error.
We are not explicitly calling a win32 filesystem method, and I thought that although the plugin was developed on a win32 system, the plugin's dependency would only be on the org.eclipse.core.filesystem package, which would be resolved locally at install time on the user's machine.
Am I missing something? Should I edit a specific (autogenerated) file and remove the reference to the win32 package mention?
Thanks in advance for your time.
-A
org.eclipse.core.filesystem is the plugin and org.eclipse.core.filesystem.win32.x86 is a fragment. Ideally you should have dependency on the plugin only. How did the fragment end up as a dependency in your plugin? You can safely remove the fragment from your dependency
Related
I'm starting development using OSGi but when one of my concerns is about the lack of support at development time, meaning that commonly IDEs (started using Intellij IDEA) don't use OSGi for class discovery but classpath search IDE managed (I'm in search for one that uses OSGi instead).
The main concern here is to prevent classpath issues at execution time by suing the same OSGi mechanisms at development time.
Does any IDE work this way ?
update: added link to blog post with my experience with IDEA
OSGi is a runtime technology, therefore there is no such thing as an OSGi mechanism at build time. Also bear in mind that ultimately all Java code must be compiled by a Java compiler, usually javac. The javac compiler does not use package dependencies like Import-Package, it always uses JARs or directories on the classpath.
Having said that, Bndtools uses package filtering at build time, based on the exported and private packages of the dependencies. This is a special feature of Eclipse and it does not work when you compile outside of the IDE, e.g. with Ant or Maven. However it may still be useful because if you try to use a non-exported package from another bundle you will get a problem marker with a red X in the Eclipse IDE.
I have an Eclipse Feature that I'm building that contains a few plugins. One of the plugins uses the import package statement to declare a dependency on another plugin.
The other plugin has platform specific code and exists in another feature that I'm building. I have two plugins in this feature that have the platform specific code. One for os=win32 arch=x86 and the other for os=win32 arch=x86_64
Both features are being built and using Tycho and they both have p2 repositories that are successfully available.
So, I made a composite repository that points to both of these repositories, and then I use the "Install New Software..." command in my RCP app and point to the composite repository to install the first feature I mentioned.
The issue is that when the installation is done, the plugin that has the platform specific code has failed to install correctly. Specifically, the plugin for the x86 system shows up on my 64bit machine.
In your feature.xml, choose the plugin with platform specific code and add a platform filter. the filters are available on the right side (once you select the plugin). You can choose filters such as:
OS
WS
Language
Architecture
When your feature is published, p2 will generate the appropriate filters.
I found the answer.
I needed a p2.inf file sitting next to my feature.xml file in the first feature I mentioned in the question.
And in that p2.inf file, I needed this text...
requires.1.namespace=org.eclipse.equinox.p2.iu
requires.1.name=com.myplatform.specfic.bundle.win32.x86
requires.1.filter=(&(osgi.os=win32) (osgi.arch=x86))
requires.1.namespace=org.eclipse.equinox.p2.iu
requires.1.name=com.myplatform.specfic.bundle.win32.x86_64
requires.1.filter=(&(osgi.os=win32) (osgi.arch=x86_64))
I added this file to the build.properties as well to make sure it was included in the deployed feature
Then when I deployed the p2 repository and performed the install into my RCP application, the correct plugin was placed onto my 64 bit machine.
UPDATE: I was wrong here. This is NOT the correct answer. The incorrect plugin still gets installed on some machines.
I wanted to add a JSP to my project and I think this is most conveniently done by adding a web module. Unfortunately when I do File->New Module the only types available are Java Module and Android Module.
I have tried turning on all likely plug-ins but no Web (or other module type, except Android) Module type appears.
Help About says it's IntelliJ 9.0.2 Ultimate (Personal License). The Register page appears to have a satisfactory license key.
Running on Windows XP.
You need to select the Java Module, and if your JEE integration plugin is enabled, you will be able to select the "web facet" later in your module creation.
You could also install the maven plugin and create a maven module based on the maven-archetype-webapp archetype.
I'm building my application to run in an OSGi container. I use Maven and the Maven Bundle Plugin from Apache Felix to set up the OSGi manifests for my own modules and that works great.
Now, I'm deploying my bundles into an OSGi container together with several 3rd party libraries. Some of these are already OSGi-fied when I get them from the Maven repos, others, I want to convert into OSGi-compatible jars. I want to set up a Maven project that collects all dependencies, and puts each in its own OSGi jar. The ultimate goal is to collect these jars and my own into an assembly that I can use as a standalone deployment package.
I know how to convert standard jars to OSGi jars, and I have a (somewhat hackish) approach to merge multiple OSGi bundles, even if I probably shouldn't. But if I have a dependency that's already fine as it is, and I just want to copy it from the repo into my assembly, what part of Maven do I use? The bundle plugin is wrong, it messes up the manifests if a dependency is already OSGi-compatible. Do I use the dependency-plugin, the assembly plugin or something else?
I have the feeling I'm overlooking something very simple here.
Did you have a look at the PAX tools? In particular Pax-Runner and
pax-construct... They do not only give you a nice template to start with, but also solve most the problems you mentioned for free.
We use many libraries which are not OSGified by the vendor and which are not available on the Spring bundle repository. We also have many of these and want to deploy them all together hassle free. For this we have created a 2-layer maven setup:
Individual maven projects that either download or contain (as 'system' scope depends) the 3rd party lib in question, and OSGify these using the Apache Felix bundle plugin
One container project that has a dependency on all of these small projects and makes an assembly of them using the core assembly maven plugin. This POM also uses the copy-dependencies goal of maven to make sure everything is in place.
Once it is turned into an assembly (ours is a tar file) we deploy this to our servers. We have gone one step further and used this assembly of 3rd party libraries as the Target Platform for our Eclipse build environment. But this may be irrelevant for you.
You can get OSGi friendly versions of many common artifacts from the Spring bundle repository. So you may not have to do it yourself.
See details of how to configure the bundle repository for Maven.
(will update with some ideas for those that aren't available as bundles already)
I have a plugin for an RCP app that uses BIRT. I have a target for building my app which contains only the plugins/features that are required. I recently updated the BIRT plugin versions in my IDE, which created an incompatibility in the design files with previous versions of BIRT. I have the old version of BIRT in my target and need to update to the newer plugins.
In the past I have manually updated plugin jars in the target, but BIRT is a complicated platform with dependencies out the wazoo. Is there any utility or way of organizing my target differently that will make this easier to control in the future?
I would recommend to keep all components separately and not copy them into a single folder. You can use Target Definition editor (see File / New / Other... / Target Definition). So, after downloading all the pieces, you can unpack them locally and assemble your Target Platform using Target Definition editor.
You can also do the same using Window / Preferences / Plugin Development / Target Platform preference page. There you can select previously created target definition or specify base Eclipse install and then use "Add..." button to add additional components from local folders or remote sites.
Also, as far as I know the PDE team is currently working on expanding Target platform support in Eclipse 3.5. I think they are planning to allow to select Target Definition per-launch configuration and per-project.
Im not sure if i understand you right, so please let me know if not.
When i use third party libraries, i create a plugin for every single one.
Example:
xstream library:
Import the jars (also the source code)
Add the jars to the MANIFEST
Bundle-ClassPath
Add all xtream packages to the
MANIFEST Export-Package
When a plugin needs the code of the xstream library it has to depend on the xtream plugin. Because the packages are public, every plugin can use the source code of it.
When a new version of xtream is comming, you only have to update the jars and not the dependend plugins. Sometimes you have to update the export packages of the third party plugin.
All depended plugins you dont have to change.