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Re: [buckminster-dev] Dependency Visualization
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Hi Dann,
A Buckminster runtime is one thing, the tools used to maintain it another. The runtime should be kept mean and lean,
that's for sure, and I think that is what your concern is about?
One thing that I've learned about EMF the last couple of weeks is that the runtime instances that it creates are very
optimized and in many cases far more optimal then the Java classes that people normally write. Booleans are grouped
together as bits in integer values, same thing with enums. I'm sure there's a lot of other optimizations going on as
well that I haven't found yet. All in all, I'm quite convinced that using EMF to describe things like our CSPEC, RMAP,
etc. will give us a smaller, less error prone, and more efficient runtime. The actual models themselves, visualized
graphically using the ecore tools diagram editor, will become valuable contributions to the documentation.
Then we have the tools surrounding it all. Editors for the model for instance. We get them for free with EMF. The
generated editor can be extended and improved a lot of course, but event the bare-bone generated thing beats the hell
out of using a text editor on XML documents. The generated editors are also very well crafted. Mean and lean. Easy to
extend and modify.
IMO EMF will become (and in some respect already is) a very valuable tool for us. Not sure I see why you'd think otherwise.
I have no experience with Zest but from the looks of it, it brings us a very good dependency visualization and that is
something that we have been longing for for some time now. Installing it will be optional of course.
Regards,
Thomas Hallgren
Dann Martens wrote:
Wait a minute,
EMF? Zest, sure, but I would hope we could keep that behemoth out of
there, we're talking a configuration management tool here.
Best regards,
Dann
Guillaume Chatelet wrote:
Wow Johannes ! This looks great : )
UI is actually an issue in Buckminster and EMF + Zest will do a good
job here. Very cool : )
Best regards,
Guillaume
On Mon, Jun 22, 2009 at 11:25 PM, Johannes Utzig <mail@xxxxxxxxx
<mailto:mail@xxxxxxxxx>> wrote:
Hi,
as discussed in
http://dev.eclipse.org/newslists/news.eclipse.tools.buckminster/msg01102.html
I started working on a zest based component dependency viewer for
buckminster.
I just finished an early prototype and thought it's enough to get
at least an idea and ask you guys what kinds of features you'd like
to see in it.
Currently this is (for sake of simplicity) registered as an editor
for previously saved .bom files.
It consists of 3 areas
-navigation tree that shows a tree of the component dependencies
and is used to drill down on the graph. The selection is linked to
the graph viewer so if you select a component in the tree, only this
specific subtree is revealed in the graph.
-graph viewer. This is very basic at the moment. It shows the
dependency graph with some icons depending on the component type and
highlights the direct dependencies of the selected component.
Unresolved nodes are shown in red, a double-click on a node reveals
the node's cspec and that's about it :)
-settings section. This section lets you choose between some layout
algorithms and filters (only platform component filter so far).
Filters are applied to both the navigation tree and the graph viewer.
I came up with the following things that should be added:
-better highlighting
-tooltips and properties view that reveal more details of each
component
-smart highlighting of paths through the graph (shortest path to
root request for example)
-regex based filter (black and white list filter)
-dependency reports generated from a bom with some nice pictures
-zooming
-image export
Now I'd be very interested to hear what's on your wish-list for
dependency visualization, so that I can plan on the real
implementation.
Attached is a screenshot and a bundle.jar including source code.
Just throw it in your dropins folder to try, but make sure that zest
is installed.
Keep in mind, this is just an early prototype for demonstration and
my first steps with zest, so the code is super ugly at the moment...
Best regards,
Johannes
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