Hi Martin,
I'm still thinking about your RMI idea. In SkyJUMP, there is a
communications module that allows other programs to control it remotely. It
doesn't use RMI, but it could be ported to OJ and changed to do so. It
includes two bidirectional channels for command and data. The protocol is
XML and the module allows arbitrary execution of plugins. An example is:
<?xml version="1.0" encoding="UTF-8"?>
<command-data>
<command>SendDatasetPlugIn</command>
<parameters>
<properties>
<mapping>
<key class="java.lang.String">input-filename</key>
<value class="java.lang.String">C:\JUMP\tmp\test.jml</value>
</mapping>
</properties>
</parameters>
</command-data>
This example causes the current selection to be written to the designated
file. Just thought I would keep the ball rolling on this idea.
regards,
Larry
On Thu, Jun 3, 2010 at 2:39 PM, Martin Davis <mbda...@refractions.net>wrote:
> It occurred to me recently that it might be useful to have a spatial
> viewer acting as an RMI service for out-of-process or remote clients. A
> possible use case would be as a "spatial logger" - a client process
> could log spatial data generated during the course of execution which
> would be immediately viewable in the spatial viewer. The neat thing is
> that this would work during a debug session, so the developer could get
> a good view of data being processed during the run.
>
> For those not familiar with it, RMI makes it almost trivially easy to
> expose a service endpoint and communicate with it from other Java
> processes. It would be fairly simple to expose a service that allowed
> clients to create layers, add features to layers, etc. Really the
> service could expose almost anything that can be manipulated in JUMP).
> It would thus enable a sort of "remote plugin" facility. I also
> envision a very simple client API that hid the (fairly trivial) aspects
> of connecting to an RMI service.
>
> This may be a solution in search of a problem - but RMI is so powerful
> it seems like there must be some applications for it.
>
> Has anyone played around with exposing an RMI service from JUMP?
>
> --
> Martin Davis
> Senior Technical Architect
> Refractions Research, Inc.
> (250) 383-3022
>
>
>
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