Hugo,
The documentation of the java plugin states this:
public void initialize(ARPluginContext context) throws ARException {}
"An initialization routine called once at startup load time for each
plugin that is loaded. The plugin can do all its initialization and
setup in this method."
I see benefits running initialize when the plugin loads.
--
Jarl
On 10/4/07, Hugo Visser <[EMAIL PROTECTED]> wrote:
> ** Dan,
>
> I don't really see the issue here. There is a difference in implementation
> for the Java plugin server and the C plugin server. For example, the C plugin
> server will only start one thread unless you configure the plugin server
> otherwise. The C plugin server will initialize the plugin when the plugin
> server loads. However, it seems that the Java implementation creates more
> threads initially and will initialize the plugin at a later stage (on first
> use).
>
> It's important to realize that the plugin server (either the C or Java
> version) can create a new instance for the plugin class. That would also
> cause the initialize to be called again. That could explain the "spurious"
> initializes. They are not actually suprious, but they are initializations of
> new plugin instances.
>
> On the pure Java Mid-Tier question: the Mid-Tier uses the Java API which is
> currently a mix of pure Java and JNI. When connecting to older servers the
> JNI stuff will be used, and the JNI code will also be used for functions that
> are not (yet) implemented in the pure Java code. It's not documented which
> functions use native code and which functions do not when connecting to a
> 7.1. server so for now I would try to play it safe and assume that the
> Mid-Tier still requires the JNI layer.
>
> Hope this helps,
>
> Hugo
>
>
>
> On 10/3/07, Dan Reitan <[EMAIL PROTECTED]> wrote:
> > **
> >
> > I'm not saying servlets were involved -- it just appears that the
> > initialization logic follows the servlet lifecycle specification.
> >
> > I'm "thinking out loud" here to understand why the behavior may be
> > different between C++ and Java Plugin, but am speculating that the Java
> > Plugin JNI (which, I believe is simply a bridge between C++ plug-in and
> > Java plugin environment) may treat the C++ plugin environment as an event
> > container (similar to Servlets treating HTTP server requests), and manage
> > JVM env. / garbage collection/ etc. similarly, which would result in
> > spurious, "random", asynchronous intialization events.
> >
> > ... just a theory...
> >
> > ...also curious about the mid-tier pure-java question, since it has such a
> > dramatic impact on architecture.
> >
> > Dan
> >
> >
> > ----- Original Message -----
> > From: Jarl Grøneng
> > Newsgroups: public.remedy.arsystem.general
> > To: arslist@ARSLIST.ORG
> >
> > Sent: Wednesday, October 03, 2007 12:59 PM
> > Subject: Re: Plugin and initialize() method
> >
> > **
> > I dont see how the servlets fits in here? I wrote a java based plugin,
> > and loaded it trough the java plugin server.
> >
> > --
> > Jarl
> >
> > On 10/3/07, Dan Reitan <[EMAIL PROTECTED] > wrote:
> > > Jarl,
> > >
> > > I can confirm Axton's observations with C++ plugins, but only circa
> > > v6.x.
> > >
> > > Would you conclude from your logs that 7.1 Java Plugin is patterned
> > > after
> > > the Servlet lifecycle model?
> > > Is there any overlap of the Plugin JNI libs with the previous
> > > ARS-Java-client JNIs?
> > > Have you looked at the current MidTier release to see if they are fully
> > > compliant with the 7.1 "pure Java" client API?
> > >
> > > Curious, and hoping to get my fingers dirty with this new stuff within
> > > a few
> > > weeks...
> > >
> > > Thanks,
> > >
> > > Dan
> > >
> > >
> > > ----- Original Message -----
> > > From: "Jarl Grøneng" < [EMAIL PROTECTED]>
> > > Newsgroups: public.remedy.arsystem.general
> > > To: <arslist@ARSLIST.ORG>
> > > Sent: Wednesday, October 03, 2007 9:47 AM
> > > Subject: Re: Plugin and initialize() method
> > >
> > >
> > > > Thanks,
> > > >
> > > > Then it seems like there is a difference in how the java
> > > > plugin-server
> > > > loads the java-plugin.
> > > >
> > > > --
> > > > Jarl
> > > >
> > > > On 10/3/07, Axton <[EMAIL PROTECTED]> wrote:
> > > >> I have a C based arfilter plug-in. The logs are available at:
> > > >>
> > > >> http://arswiki.org/projects/arfprng/wiki/UserDocs
> > > >>
> > > >> Looks like ARPluginInitialization is only called when the plug-in
> > > >> server is started.
> > > >>
> > > >> Axton
> > > >>
> > > >> On 10/3/07, Jarl Grøneng <[EMAIL PROTECTED]> wrote:
> > > >> > From the documentaion, the function:
> > > >> > public void initialize(ARPluginContext context) throws
> > > ARException {}
> > > >> > should be loaded when the pluginserver start.
> > > >> > "An initialization routine called once at startup load time for
> > > >> > each
> > > >> > plugin that is loaded. The plugin can do all its initialization
> > > >> > and
> > > >> > setup in this method. "
> > > >> >
> > > >> > This is what plugin.log shows on startup:
> > > >> >
> > > >> > 2007-10-03 17:37:00,750 INFO [main]
> > > >> > com.bmc.arsys.pluginsvr.plugins.g
> > > >> > (?:?) - The plugin url is
> > > >> >
> > > >> > file:/C:/Documents%20and%20Settings/jag/My%20Documents/Java/ListCurrentUsers/ListCurrentUsers/deploy/listcurrentusers.jar
> > > >> > 2007-10-03 17:37:00,750 INFO [main]
> > > >> > com.bmc.arsys.pluginsvr.ARPluginServerMain (?:?) - AR System
> > > Plugin
> > > >> > Server Version 7.1.00 Build 200708221849
> > > >> >
> > > >> >
> > > >> > When I do a query on the vendor form, the initialize() function
> > > >> > got
> > > >> > triggered:
> > > >> >
> > > >> > 2007-10-03 17:51:18,140 INFO [TCP server transport connection
> > > >> > thread]
> > > >> > com.bmc.arsys.pluginsvr.plugins.ARPluginContext (?:?) -
> > > >> > <SAMPLE.USERLIST>initialize()
> > > >> > 2007-10-03 17:51:18,468 INFO [TCP server transport connection
> > > >> > thread]
> > > >> > com.bmc.arsys.utils.CatalogReader (?:?) -
> > > constructor(arcatalog)
> > > >> > 2007-10-03 17:51:19,406 INFO [TCP server transport connection
> > > >> > thread]
> > > >> > com.bmc.arsys.api.ProxyManager (?:?) - Connects to ARServer pcjag2
> > > >> > through [EMAIL PROTECTED]
> > > >> > 2007-10-03 17:51:19,421 INFO [TCP server transport connection
> > > >> > thread]
> > > >> > com.bmc.arsys.api.Proxy (?:?) - Api source is identified as:
> > > >> > AP016561457016WSrgRgQbYDAAKQAA
> > > >> > 2007-10-03 17:51:21,265 INFO [TCP server transport connection
> > > thread]
> > > >> > com.bmc.arsys.pluginsvr.plugins.ARPluginContext (?:?) -
> > > >> > <SAMPLE.USERLIST>getListEntryWithFields()
> > > >> > ..
> > > >> > ..
> > > >> >
> > > >> > Anyone done a C based plugin that can confirm that this also
> > > >> > happend
> > > >> > with a C plugin?
> > > >> >
> > > >> > Regards,
> > > >> > Jarl
> > > >> >
> > > >> >
> > > >> _______________________________________________________________________________
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> > > >> >
> > > >>
> > > >>
> > > _______________________________________________________________________________
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> > > >
> > > >
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