openorb-users — A moderate volume list for user & developer questions and problems

Re: [openorb-users] Help: Getting started...

[Michael R. <mi...@ru...>]

Hi,

CVS of version 1.2.1

http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/openorb/OpenORB/src/main/org/
openorb/adapter/poa/POA.java?annotate=1.2&only_with_tag=OpenORB_1_2_1

shows the following lines:
 205                try {
 206                  policy_set.set_policy_overrides(policies,
org.omg.CORBA.SetOverrideType.SET_OVERRIDE);
 207                }
There is nothing unusual there. The only thing I can imagine is that the
wrong policy class is loaded which does not have the set_policy_overrides()
method. You should try cleaning up your classpath to provide only necessary
jars...

And sorry no tutorial available!!

Michael

----- Original Message -----
From: "Alexandre Ricardo Nardi" <na...@op...>
To: <ope...@li...>
Sent: Thursday, August 29, 2002 3:29 AM
Subject: [openorb-users] Help: Getting started...


Hi.

I'm beginner to OpenORB, so I'm trying to run the examples.

I've installed OpenORB 1.2.1 according to instructions and the rootpoa
example compiles successfully. But, when I run the server, I get:



C:\OpenORB-1.2.1\examples>java poa.rootPOA.Server

Exception in thread "main" java.lang.NoSuchMethodError

        at org.openorb.adapter.poa.POA.<init>(POA.java:206)

        at org.openorb.adapter.poa.RootPOA.<init>(RootPOA.java:68)

        at org.openorb.adapter.poa.RootPOA.create_root_poa(RootPOA.java:87)

        at
org.openorb.adapter.poa.POAInitializer.init(POAInitializer.java:83)

        at
org.openorb.PI.OpenORBInitInfo.post_init(OpenORBInitInfo.java:169)

        at
org.openorb.CORBA.kernel.OpenORBLoader.init(OpenORBLoader.java:155)

        at org.openorb.CORBA.ORB.set_parameters(ORB.java:675)

        at org.omg.CORBA.ORB.init(Unknown Source)

        at poa.rootPOA.Server.main(Server.java:14)



The Server.java code is:



package poa.rootPOA;



public class Server

{

      public static void main( String args[] )

      {



            org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init(args, null);

            org.omg.CORBA.Object objPoa = null;

            org.omg.PortableServer.POA rootPOA = null;

            try

            {

                  objPoa = orb.resolve_initial_references("RootPOA");

            }

...



The orb.properties file contains:



org.omg.CORBA.ORBClass=org.openorb.CORBA.ORB

org.omg.CORBA.ORBSingletonClass=org.openorb.CORBA.ORBSingleton





What did I miss?

Is there some tutorial or getting started documentation?



Thanks in advance for any help.



-----------------------------------------

Alexandre Ricardo Nardi

Consultor Técnico - Opus Software

na...@op...

Rua Eugênio de Medeiros, 242 - 1o. andar

São Paulo - Brasil

Tel: 55 11 3816-2200   Fax: 3097-0702

[openorb-users] Help: Getting started...

[Alexandre R. N. <na...@op...>]

Hi.

I'm beginner to OpenORB, so I'm trying to run the examples.

I've installed OpenORB 1.2.1 according to instructions and the rootpoa =
example compiles successfully. But, when I run the server, I get:

=20

C:\OpenORB-1.2.1\examples>java poa.rootPOA.Server

Exception in thread "main" java.lang.NoSuchMethodError

        at org.openorb.adapter.poa.POA.<init>(POA.java:206)

        at org.openorb.adapter.poa.RootPOA.<init>(RootPOA.java:68)

        at =
org.openorb.adapter.poa.RootPOA.create_root_poa(RootPOA.java:87)

        at =
org.openorb.adapter.poa.POAInitializer.init(POAInitializer.java:83)

        at =
org.openorb.PI.OpenORBInitInfo.post_init(OpenORBInitInfo.java:169)

        at =
org.openorb.CORBA.kernel.OpenORBLoader.init(OpenORBLoader.java:155)

        at org.openorb.CORBA.ORB.set_parameters(ORB.java:675)

        at org.omg.CORBA.ORB.init(Unknown Source)

        at poa.rootPOA.Server.main(Server.java:14)

=20

The Server.java code is:

=20

package poa.rootPOA;

=20

public class Server

{

      public static void main( String args[] )

      {

     =20

            org.omg.CORBA.ORB orb =3D org.omg.CORBA.ORB.init(args, =
null);

            org.omg.CORBA.Object objPoa =3D null;

            org.omg.PortableServer.POA rootPOA =3D null;

            try

            {

                  objPoa =3D orb.resolve_initial_references("RootPOA");  =
            =20

            }

...

=20

The orb.properties file contains:

=20

org.omg.CORBA.ORBClass=3Dorg.openorb.CORBA.ORB

org.omg.CORBA.ORBSingletonClass=3Dorg.openorb.CORBA.ORBSingleton

=20

=20

What did I miss?

Is there some tutorial or getting started documentation?

=20

Thanks in advance for any help.

=20

-----------------------------------------

Alexandre Ricardo Nardi

Consultor T=E9cnico - Opus Software

na...@op...

Rua Eug=EAnio de Medeiros, 242 - 1o. andar

S=E3o Paulo - Brasil

Tel: 55 11 3816-2200   Fax: 3097-0702

=20

=20

[openorb-users] Using OpenORB OTS : NoTransaction problem

[Romain R. <rom...@li...>]

Hello !

I'm currently using the OpenORB Object Transaction Service and I'm
encountering a problem =/

When I start a new top-level transaction with the command
current.begin() no exception are raised and it seems that a new
top-level transaction has begun. But when I get the status of this
transaction I obtain the
org.omg.CosTransactions.Status._StatusNoTransaction value =( and indeed
when I try to commit or rollback the transaction, the
org.omg.CosTransactions.NoTransaction exception is raised =((

So anyone could say we from where my problem comes ?


-- 
Regards,
Romain Rouvoy
--
__________________________________________________
Romain Rouvoy - Research Engineer
Laboratoire d'Informatique Fondamentale de Lille
UPRESA 8022 CNRS - U.F.R. I.E.E.A. - Batiment M3
Universite des Sciences et Technologies de Lille
59655 Villeneuve d'Ascq CEDEX France

    Phone: (33) (0)3 20 43 47 21
      Fax: (33) (0)3 20 43 65 66
   E-Mail: Rom...@li...
      ICQ: #159382122
Home Page: http://corbaweb.lifl.fr/
 See Also: http://www.objectweb.org/openccm
__________________________________________________

Re: [openorb-users] Bug #561986

[Michael R. <mi...@ru...>]

No problem. Please don't forget to close the bug report....

Michael

----- Original Message -----
From: "Fernando Koch" <fk...@dy...>
To: "Michael Rumpf" <mi...@ru...>
Cc: <ope...@li...>
Sent: Wednesday, August 28, 2002 2:47 PM
Subject: Re: [openorb-users] Bug #561986


> Hi Michael,
> You are right, I never called orb.run() on the client side. In fact, I
> didn't know it was even neccessary, since all of the examples I've seen
> didn't call it on the client side (but since this client is mixed, I
> should have known that).
> I apologize for the waste of time and I thank you for your time and
> patience :)
>
> Best regards,
>     ...fernando
>
> Michael Rumpf wrote:
> > Hi Fernando,
> >
> > the problem is a bit hard to test as you need the non free ORB Orbix
2000 to
> > test. I don't want to download Orbix 2000, I did that once, had to write
my
> > contact information and was then called by a dumb sales guy twice a
month
> > about how my evaluation is going on...
> > It would be great if you could tell us whether the problem also exists
with
> > another free ORB, lets say JacORB then we would be able to reproduce the
> > problem more easily.
> >
> > I had a quick look at your example. I can't believe that the client is
> > working at all. There is no orb.run() call in the code. The orb.run()
call
> > ServerManagerImpl.startup() and this one starts the server IO threads
> > responsible for receiving data. As long as you don't do that no data
should
> > be received on the client side.
> > I turned debug output on
> > (-Dopenorb.debug.level=HIGH -Dopenorb.debug.trace=DEBUG) to see which
IIOP
> > messages got called but I can't see a callback message on the client
side.
> > The server prints a few exceptions which indicate that the call never
leaves
> > the server process.
> >
> > When you should get your example working with OpenORB on the server and
on
> > the client side working. You should have no problems with other ORBs.
> >
> > Hint: put a orb.run() in a separate thread before sending any messages
to
> > the server!
> >
> > Michael
> >
> >
> > ----- Original Message -----
> > From: "Fernando Koch" <fk...@dy...>
> > To: <ope...@li...>
> > Sent: Monday, August 26, 2002 11:00 PM
> > Subject: [openorb-users] Bug #561986
> >
> >
> >
> >>Hi,
> >>I was wondering if there any news about bug #561986
> >>
> >>
> >
> >
(http://sourceforge.net/tracker/index.php?func=detail&aid=561986&group_id=43
> > 608&atid=436925)
> >
> >>If not, I'd appreciate if someone can give me some hints on where to
> >>start looking in the sources to see what I can find.
> >>
> >>Regards,
> >>    ...fernando
> >>
> >>--
> >>( o\v
> >>Fernando Koch
> >>DynamicObjects - www.dynamicobjects.com
> >>
> >>
> >>
> >>-------------------------------------------------------
> >>This sf.net email is sponsored by: OSDN - Tired of that same old
> >>cell phone?  Get a new here for FREE!
> >>https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390
> >>_______________________________________________
> >>openorb-users mailing list
> >>ope...@li...
> >>https://lists.sourceforge.net/lists/listinfo/openorb-users
> >
> >
> >
> >
> > -------------------------------------------------------
> > This sf.net email is sponsored by: Jabber - The world's fastest growing
> > real-time communications platform! Don't just IM. Build it in!
> > http://www.jabber.com/osdn/xim
> > _______________________________________________
> > openorb-users mailing list
> > ope...@li...
> > https://lists.sourceforge.net/lists/listinfo/openorb-users
>
> --
> ( o\v
> Fernando Koch
> DynamicObjects - www.dynamicobjects.com
>
>
>
> -------------------------------------------------------
> This sf.net email is sponsored by: Jabber - The world's fastest growing
> real-time communications platform! Don't just IM. Build it in!
> http://www.jabber.com/osdn/xim
> _______________________________________________
> openorb-users mailing list
> ope...@li...
> https://lists.sourceforge.net/lists/listinfo/openorb-users

Re: [openorb-users] Bug #561986

[Fernando K. <fk...@dy...>]

Hi Michael,
You are right, I never called orb.run() on the client side. In fact, I 
didn't know it was even neccessary, since all of the examples I've seen 
didn't call it on the client side (but since this client is mixed, I 
should have known that).
I apologize for the waste of time and I thank you for your time and 
patience :)

Best regards,
    ...fernando

Michael Rumpf wrote:
> Hi Fernando,
> 
> the problem is a bit hard to test as you need the non free ORB Orbix 2000 to
> test. I don't want to download Orbix 2000, I did that once, had to write my
> contact information and was then called by a dumb sales guy twice a month
> about how my evaluation is going on...
> It would be great if you could tell us whether the problem also exists with
> another free ORB, lets say JacORB then we would be able to reproduce the
> problem more easily.
> 
> I had a quick look at your example. I can't believe that the client is
> working at all. There is no orb.run() call in the code. The orb.run() call
> ServerManagerImpl.startup() and this one starts the server IO threads
> responsible for receiving data. As long as you don't do that no data should
> be received on the client side.
> I turned debug output on
> (-Dopenorb.debug.level=HIGH -Dopenorb.debug.trace=DEBUG) to see which IIOP
> messages got called but I can't see a callback message on the client side.
> The server prints a few exceptions which indicate that the call never leaves
> the server process.
> 
> When you should get your example working with OpenORB on the server and on
> the client side working. You should have no problems with other ORBs.
> 
> Hint: put a orb.run() in a separate thread before sending any messages to
> the server!
> 
> Michael
> 
> 
> ----- Original Message -----
> From: "Fernando Koch" <fk...@dy...>
> To: <ope...@li...>
> Sent: Monday, August 26, 2002 11:00 PM
> Subject: [openorb-users] Bug #561986
> 
> 
> 
>>Hi,
>>I was wondering if there any news about bug #561986
>>
>>
> 
> (http://sourceforge.net/tracker/index.php?func=detail&aid=561986&group_id=43
> 608&atid=436925)
> 
>>If not, I'd appreciate if someone can give me some hints on where to
>>start looking in the sources to see what I can find.
>>
>>Regards,
>>    ...fernando
>>
>>--
>>( o\v
>>Fernando Koch
>>DynamicObjects - www.dynamicobjects.com
>>
>>
>>
>>-------------------------------------------------------
>>This sf.net email is sponsored by: OSDN - Tired of that same old
>>cell phone?  Get a new here for FREE!
>>https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390
>>_______________________________________________
>>openorb-users mailing list
>>ope...@li...
>>https://lists.sourceforge.net/lists/listinfo/openorb-users
> 
> 
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by: Jabber - The world's fastest growing 
> real-time communications platform! Don't just IM. Build it in! 
> http://www.jabber.com/osdn/xim
> _______________________________________________
> openorb-users mailing list
> ope...@li...
> https://lists.sourceforge.net/lists/listinfo/openorb-users

-- 
( o\v
Fernando Koch
DynamicObjects - www.dynamicobjects.com

Re: [openorb-users] ORBInitRef property

[Michael R. <mi...@ru...>]

I have found no indication in the spec that the properties you mention are
valid CORBA properties. Page 4-30 (or 177) of the CORBA 3.0 spec. does not
mention any of the property names, only the last one which works also for
you is mentioned there...

Michael

----- Original Message -----
From: "Poupart Erwann" <Erw...@cn...>
To: <ope...@li...>
Sent: Monday, August 26, 2002 3:07 PM
Subject: [openorb-users] ORBInitRef property


> Hi all,
>
> I tried to set ORBInitRef with different combinations without success.
>
>         props.put("org.omg.CORBA.ORBInitRef",
"NameService=corbaloc::localhost:2809/NameService");
> or
>         props.put( "org.omg.CORBA.ORBInitRef",
"NameService=corbaloc:iiop:1.0@localhost:2809/NameService" );
> or
>
props.setProperty("org.omg.CORBA.ORBInitRef.NameService","corbaname::localho
st:2809");
> or
>
props.setProperty("org.omg.CORBA.ORBInitRef.NameService","corbaloc::localhos
t:2809");
> ...
>
> None ot them is taken in account !
>
> The only way i have for the moment is to set this property on the command
line :
>
> Java ... -ORBInitRef NameService=corbaloc::localhost:2809/NameService
>
> Do i miss something in the documentation ?
>
> Thanks for any help,
>
> Regards,
>
> Erwann.
>
>
> -------------------------------------------------------
> This sf.net email is sponsored by: OSDN - Tired of that same old
> cell phone?  Get a new here for FREE!
> https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390
> _______________________________________________
> openorb-users mailing list
> ope...@li...
> https://lists.sourceforge.net/lists/listinfo/openorb-users

Re: [openorb-users] Bug #561986

[Michael R. <mi...@ru...>]

Hi Fernando,

the problem is a bit hard to test as you need the non free ORB Orbix 2000 to
test. I don't want to download Orbix 2000, I did that once, had to write my
contact information and was then called by a dumb sales guy twice a month
about how my evaluation is going on...
It would be great if you could tell us whether the problem also exists with
another free ORB, lets say JacORB then we would be able to reproduce the
problem more easily.

I had a quick look at your example. I can't believe that the client is
working at all. There is no orb.run() call in the code. The orb.run() call
ServerManagerImpl.startup() and this one starts the server IO threads
responsible for receiving data. As long as you don't do that no data should
be received on the client side.
I turned debug output on
(-Dopenorb.debug.level=HIGH -Dopenorb.debug.trace=DEBUG) to see which IIOP
messages got called but I can't see a callback message on the client side.
The server prints a few exceptions which indicate that the call never leaves
the server process.

When you should get your example working with OpenORB on the server and on
the client side working. You should have no problems with other ORBs.

Hint: put a orb.run() in a separate thread before sending any messages to
the server!

Michael


----- Original Message -----
From: "Fernando Koch" <fk...@dy...>
To: <ope...@li...>
Sent: Monday, August 26, 2002 11:00 PM
Subject: [openorb-users] Bug #561986


> Hi,
> I was wondering if there any news about bug #561986
>
>
(http://sourceforge.net/tracker/index.php?func=detail&aid=561986&group_id=43
608&atid=436925)
>
> If not, I'd appreciate if someone can give me some hints on where to
> start looking in the sources to see what I can find.
>
> Regards,
>     ...fernando
>
> --
> ( o\v
> Fernando Koch
> DynamicObjects - www.dynamicobjects.com
>
>
>
> -------------------------------------------------------
> This sf.net email is sponsored by: OSDN - Tired of that same old
> cell phone?  Get a new here for FREE!
> https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390
> _______________________________________________
> openorb-users mailing list
> ope...@li...
> https://lists.sourceforge.net/lists/listinfo/openorb-users

[openorb-users] Bug #561986

[Fernando K. <fk...@dy...>]

Hi,
I was wondering if there any news about bug #561986

(http://sourceforge.net/tracker/index.php?func=detail&aid=561986&group_id=43608&atid=436925)

If not, I'd appreciate if someone can give me some hints on where to
start looking in the sources to see what I can find.

Regards,
    ...fernando

-- 
( o\v
Fernando Koch
DynamicObjects - www.dynamicobjects.com

[openorb-users] ORBInitRef property

[Poupart E. <Erw...@cn...>]

Hi all,

I tried to set ORBInitRef with different combinations without success.

        props.put("org.omg.CORBA.ORBInitRef", "NameService=corbaloc::localhost:2809/NameService");
or
        props.put( "org.omg.CORBA.ORBInitRef", "NameService=corbaloc:iiop:1.0@localhost:2809/NameService" );
or
        props.setProperty("org.omg.CORBA.ORBInitRef.NameService","corbaname::localhost:2809");
or
        props.setProperty("org.omg.CORBA.ORBInitRef.NameService","corbaloc::localhost:2809");
...

None ot them is taken in account !

The only way i have for the moment is to set this property on the command line :

	Java ... -ORBInitRef NameService=corbaloc::localhost:2809/NameService

Do i miss something in the documentation ?

Thanks for any help,

Regards,

Erwann.

[openorb-users] Persistent State Service

[Claudia B. L. N. da S. <cb...@ci...>]

Hi,

I wanna know if someone has worked with Persistent State Service (PSS)
because I have some doubts related to database connection information.

I'm trying to run an application which uses PSS with InstantDB database 
but I haven't obtained success. 

When I use MemoryPersistence, like the OpenORB's example, my application
runs without problem, but when I try to use DatabasePersistence it 
throws an exception. I don't know what's the problem.

Does someone have any information about the parameters that I have
to give to create a session? I gave the following ones: 

---
parameters[ 0 ] = new org.omg.CosPersistentState.Parameter();
            parameters[ 0 ].name = "JDBC Driver";
            parameters[ 0 ].val = orb.create_any();            
            parameters[ 0 ].val.insert_string
( "org.enhydra.instantdb.jdbc.idbDriver" );
            
            parameters[ 1 ] = new org.omg.CosPersistentState.Parameter();
            parameters[ 1 ].name = "JDBC URL";
            parameters[ 1 ].val = orb.create_any();
            parameters[ 1 ].val.insert_string
( "jdbc:idb:C:\\InstantDB\\Examples\\banco.prp" ); 
---  

Thanks,
Claudia.

[openorb-users] Persistent State Service

[Claudia B. L. N. da S. <cb...@ci...>]

Hi,                                                                             
         
I'm trying to run an application that uses the persistent state 
service.                 
                                                                        
The problem occurs in the following line of command:

---                                                                      
ContaHome home = ( ContaHome ) mySession.find_storage_home         
("PSDL:banco/openorb/ContaHomeBase:1.0" );          
---
                                                                      
where "ContaHome" is the abstract storagehome and "ContaHomeBase" is 
the                 
storagehome.                                                                    
               
When I try to run my application the following exception occurs:

---
java.lang.ClassCastException: banco.openorb.ContaHomeBase
        at org.openorb.pss.connector.database.DatabaseSession.register_home_inca
rnation(DatabaseSession.java:197)
        at org.openorb.pss.connector.database.DatabaseCatalog.find_storage_home(
DatabaseCatalog.java:144)
        at banco.openorb.Server.main(Server.java:109)
org.omg.CORBA.PERSIST_STORE:   vmcid: 0x0  minor code: 11  completed: No
        at org.openorb.pss.connector.database.DatabaseCatalog.find_storage_home(
DatabaseCatalog.java:151)
        at banco.openorb.Server.main(Server.java:109)
---

Can someone help me?

Claudia.

[openorb-users] Event service issues

[Venkatesh P. R. <rvp...@ci...>]

Hi,

I am using OpenORB 1.3.0b2 with jdk 1.4.1.  I have not changed any config information pertaining to the orb or any of the
services.

I start org.openorb.ins.Server with -ORBPort=2001 argument and the service start with no error.  I am including all the jar
files created in the openorb and the COSs.  Then I start org.openorb.event.Server, which again starts up with no error.

However, when I try to execute org.openorb.event.examples.PushServer, it fails with the error "EventService reference is
incorrect" as the returned obj reference to event service is null.

Can somebody point out what may be going wrong?

-- 

Venkatesh Prasad Ranganath,
Dept. Computing and Information Science,
Kansas State University, US.
web: http://www.cis.ksu.edu/~rvprasad

My own business always bores me to death; I prefer other people's.
		-- Oscar Wilde

RE: [openorb-users] Setting up an Ant target to compile idl files .

[Satish b. <sat...@ve...>]

Thanks for the suggestions thomas.

I want to avoid specifying each idl file name in the build file. The command
line argument task does not accept nested filesets, otherwise the wild card
idea will work assuming the module dependency in idl files wont be a
problem.

Thanks
Satish.

-----Original Message-----
From: Thomas Pfau [mailto:pf...@ra...]
Sent: Tuesday, August 20, 2002 5:14 PM
To: Satish boggavarapu
Cc: 'ope...@li...'
Subject: Re: [openorb-users] Setting up an Ant target to compile idl
files.


Here's an extract from our system build.

Notice that the idl->java compilation is not listed in the 'depends' for 
the java->class compilation.  Since there is not a one-to-one mapping of 
xxx.idl to xxx.java, it's not possible to figure out which idl files 
need to be recompiled.  The idl->java compilation has to be selected 
specifically.  If it were listed as a depends item, it would happen 
every time.  If you can come up with a one-to-one mapping in your 
system, you could experiment with some of the other ant directives that 
will allow it to figure out which idl files have changed and only 
recompile those.

Also notice that I list each of the source idl's.  It appeared that the 
idl compiler was not generating .java files for idl files that it 
processed through an include directive before seeing the file on the 
command line.  The files are listed in an order that makes sure they 
appear on the command line before any modules that reference them.  If 
not for this bug, you could probably use one of the other fileset 
directives to build a list of files using a wildcard.

----

  <target name="base-corba-idl" depends="init" description="generate 
java code from base idl sources">
    <java classname="org.openorb.compiler.IdlCompiler" fork="yes">
      <arg line="${idl-flags} -d ${base-corba-gen} -I ${rane-inc}" />
      <arg value="${idl-src}/XITypes.idl" />
      <arg value="${idl-src}/XIUserDisplay.idl" />
      <arg value="${idl-src}/XIRightsDisplay.idl" />
      <arg value="${idl-src}/XINetworkDeviceDisplay.idl" />
      <arg value="${idl-src}/XIAddress.idl" />
      <arg value="${idl-src}/XIConnection.idl" />
      <arg value="${idl-src}/ICDR.idl" />
      <arg value="${idl-src}/XISession.idl" />
    </java>
  </target>

  <target name="base-corba-obj" depends="init" description="compile java 
code generated from base idl sources">
    <javac srcdir="${base-corba-gen}" destdir="${user-corba}" 
debug="${debug}">
    </javac>
  </target>

----

[openorb-users] Setting up an Ant target to compile idl files.

[Satish b. <sat...@ve...>]

Hi All,

How do i set up an Ant target to invoke openorb idlcompiler to compile all
the idl files in a directory and the corresponding generated java files.

I belive the build.xml the comes with OpenOrb specifically compiles each idl
file. Is there any way to avoid that? Or may be i am wrong about that. 

Any snippets, pointers will be really helpful.

Thanks in advance
Satish.

[openorb-users] Re: [openorb-dev] Help Please

[Michael R. <mi...@ru...>]

Please read this:
http://sourceforge.net/mailarchive/forum.php?thread_id=790160&forum_id=7508

The forum is no longer active, please go to http://openorb.sf.net and
subscribe to the openorb-users mailing list there.

Regarding your questions:
1) When you are using standard CORBA APIs this should just be a matter of
configuration.
2) What is your special issue here? NB comes with a CORBA module that uses
OpenORB 1.0.1 internally...

Hope this helps,
    Michael


----- Original Message -----
From: "K Chris " <cta...@if...>
To: <ope...@ex...>
Sent: Tuesday, August 20, 2002 2:18 AM
Subject: [openorb-dev] Help Please


Hi,
Please can someone help me by answering to the following 2 questions:
1-) Is there a way to swich between OpenOrb and Sun ORB?
2-) How should I set OpenOrb for its integration with an external IDE
(such as Forte)?
Thanks


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Re: [openorb-users] Connection reuse in 1.3.0b1?

[Rainer F. <ra...@de...>]

  Hi Richard.



 Thanks for the answer. Since I didn't find any information stating
otherwise, I assume OpenORB follows the approach that you outlined. Bummer.
It seems that omniORB 4.x does, in fact, offer the threading policy that I
need. I just won't be able to do the migration in the near future.







P.S.: Sorry about the posting format; getting Lotus Notes to behave ist
       sometimes ...



 Regards,

       Rainer.



----- Original Message -----
       Please respond to "Richard Clark" <rg...@ze...>

To:    <ope...@li...>, Rainer
       Frohnhoefer/Germany/IBM@IBMDE
cc:
Subject:    Re: [openorb-users] Connection reuse in 1.3.0b1?



Rainer,

Having a look at the omniORB user guide it states: "omniORB implements a
dynamic policy---multiple connections to the same remote address space are
created on demand and cached when there are concurrent invocations in
progress." I don't think OpenORB supports this client
connection-per-request
policy that you require to workaround the single-thread-per-connection
nature of omniORB. It could be considered as an extension, but for general
purpose computing thread pool based request despatching is more favourable
than thread-per-request. However its all horses for courses.

You might want to try moving your C++ server to TAO as it as a better
selection of server policies. This however is an implementation of CORBA
RealTime 1.0 which is based on CORBA 2.2.

Cheers,
Richard.

P.S. Make sure that you follow the guidlines for the OpenORB mailing list
http://openorb.sourceforge.net/#ml before posting, i.e. post in plain text.

Re: [openorb-users] Connection reuse in 1.3.0b1?

[Richard C. <rg...@ze...>]

Rainer,

Having a look at the omniORB user guide it states: "omniORB implements a
dynamic policy---multiple connections to the same remote address space are
created on demand and cached when there are concurrent invocations in
progress." I don't think OpenORB supports this client connection-per-request
policy that you require to workaround the single-thread-per-connection
nature of omniORB. It could be considered as an extension, but for general
purpose computing thread pool based request despatching is more favourable
than thread-per-request. However its all horses for courses.

You might want to try moving your C++ server to TAO as it as a better
selection of server policies. This however is an implementation of CORBA
RealTime 1.0 which is based on CORBA 2.2.

Cheers,
Richard.

P.S. Make sure that you follow the guidlines for the OpenORB mailing list
http://openorb.sourceforge.net/#ml before posting, i.e. post in plain text.

----- Original Message -----
From: Rainer Frohnhoefer
To: ope...@li...
Sent: Tuesday, August 13, 2002 3:54 PM
Subject: [openorb-users] Connection reuse in 1.3.0b1?

        Hi,

 we're having trouble with the combination of omniORB 3.0.x and OpenORB
1.3.0b1. Concurrent calls made from the client seem to trigger only
sequential processing in the server. The server should be configured
correctly, since "parallel processing" works with a test client using omni.

 I stumbled over this piece of information from the omniORB mailing list, by
Cristof Meerwald:


> But when using JacORB (and probably most other Java-based ORBs as well) to
>access an omniORB server you might run into a concurrency problem: omniORB
>uses a thread-per-connection concurrency model, but JacORB multiplexes
>concurrent requests over a single connection. This will lead to concurrent
>requests from a single JacORB client to be sequentially executed on the
>omniORB side.
>
>Besides JacORB, there is also ORBacus for Java (http://www.orbacus.com/ob/)
>which AFAIK allows you to open new connections for concurrent requests to a
>(omniORB) server by switching off some connection reuse policy, but it's
>only free for non-commercial use.
>
>And then there is also OpenORB (http://www.openorb.org/openorb.html) which
>claims to also support the INS, but I haven't tried it yet...

 My question is: Does OpenORB handle concurrent calls in the same way and is
this configurable?

Regards,
        Rainer.

[openorb-users] ClientRequestInterceptor not invoked

[Timmo G. <ti...@gm...>]

Dear openORB Users,

the topic of my diploma deals with ascpect oriented programming (AOP) 
and uses openORB for a research on distributed aspects.

Problem:
Therefor I need to add a service context to EVERY request. 
The RequestInterceptors enable me to do so,
but unfortunately the ClientRequestInterceptor does not get called
for "inner Object calls" as explained in the following example:

Consider the object interface IFoo as:
interface IFoo
{
    void a();
    void b();
}

It is compiled with the openorb idl compiler using the "-nolocalstub" option.
The IFoo implementation look like:

 1 public class IFooImpl extends IFooPOA
 2 {
 3     public void a()
 4     {
 5         System.out.println("IFooImpl.a() called");
 6         _this().b();
 7     }
 8 
 9     public void b()
10     {
11         System.out.println("IFooImpl.b() called");
12     }
13 }

The call in line 6 should result in the following operation calls:

1) org.omg.PortableInterceptor.ClientRequestInterceptor.send_request(...)
2) org.omg.PortableInterceptor. \
    ServerRequestInterceptor.receive_request_service_contexts(...)
3) org.omg.PortableInterceptor.ServerRequestInterceptor.receive_request(...)
4) IFooImpl.b()
5..X) .... // similar for the return

Unfortunately the ClientInterceptor does not get called. 
The ServerInterceptor gets called in the expected way.

Does anybody have an idea why the ClientInterceptor does not get called ?
Please, please let me know any solutions.

Best regards and thank's in advance,

Timmo Gierke

[openorb-users] Connection reuse in 1.3.0b1?

[Rainer F. <ra...@de...>]

        Hi, 

 we're having trouble with the combination of omniORB 3.0.x and OpenORB 
1.3.0b1. Concurrent calls made from the client seem to trigger only 
sequential processing in the server. The server should be configured 
correctly, since "parallel processing" works with a test client using 
omni.

 I stumbled over this piece of information from the omniORB mailing list, 
by Cristof Meerwald:


> But when using JacORB (and probably most other Java-based ORBs as well) to
>access an omniORB server you might run into a concurrency problem: 
omniORB
>uses a thread-per-connection concurrency model, but JacORB multiplexes
>concurrent requests over a single connection. This will lead to 
concurrent
>requests from a single JacORB client to be sequentially executed on the
>omniORB side.
>
>Besides JacORB, there is also ORBacus for Java (http://www.orbacus.com/ob/)
>which AFAIK allows you to open new connections for concurrent requests to 
a
>(omniORB) server by switching off some connection reuse policy, but it's
>only free for non-commercial use.
>
>And then there is also OpenORB (http://www.openorb.org/openorb.html) which
>claims to also support the INS, but I haven't tried it yet...

 My question is: Does OpenORB handle concurrent calls in the same way and 
is this configurable?

Regards, 
        Rainer.

RE: [openorb-users] Queue service

[Eduardo F. <efr...@in...>]

At 23:12 8/8/02, J. Scott Evans wrote:
>If you have one subscriber for an event in the notification service then
>you have one and only one subscriber don't you?  Also, you might be able to
>apply filters to direct events to only one subscriber.  Seems like the
>notification service would serve your purpose.

True, but that's not the problem I'm trying to solve.
In the distributed task execution environment I may have more than one
object (agent) capable of executing a given task.
A NotificationService type of attributes/filters could be used to determine
the requirements of each task or task queue, and the agents would issue
requests with their specific capabilities as filters. A task would simply
wait until an agent capable of executing it would make a task request.
So the filters to be used concern the agent's capabilities and the task's
requirements, without targeting a specific agent/task.
For example, if I have tasks of type "download a WEB page", then any agent
capable of downloading WEB pages could execute it, so the first "download
capable agent" requesting a task from the queue would get the next waiting
download task. Subsequent download agents would get the following tasks as
they are posted to the queue.

I hope this clarifies my point.

Eduardo




-----Message d'origine-----
De : ope...@li...
[mailto:ope...@li...]De la part de J. Scott
Evans
Envoye : jeudi 8 aout 2002 23:12
A : Eduardo Francos; ope...@li...
Objet : Re: [openorb-users] Queue service


At 05:35 PM 8/8/02 +0200, Eduardo Francos wrote:
>Hi,
>I'm trying to implement a distributed task execution environment in which
>many objects can post tasks to centralized queues, and many objects can
>execute those tasks.
>I've looked all over for a definition/implementation of a distributed Queue
>service based on Corba. By distributed queue I mean a many-to-many delivery
>scheme but, contrary to the NotificationService events which are delivered
>to all subscribers, a queue item is only delivered to one and only one
>subscriber.
>
>I'm relatively new to CORBA so this may be (easily?) done with already
>existing services but I've been unable to figure it out. I'm considering
>implementing such a scheme based on the NotificationService sources
because,
>IMHO,  much of the functionality is very similar, but I'd rather use
>something existing ;-)

If you have one subscriber for an event in the notification service then
you have one and only one subscriber don't you?  Also, you might be able to
apply filters to direct events to only one subscriber.  Seems like the
notification service would serve your purpose.

scott

>Any ideas?
>
>Eduardo
>
>
>
>-------------------------------------------------------
>This sf.net email is sponsored by:ThinkGeek
>Welcome to geek heaven.
>http://thinkgeek.com/sf
>_______________________________________________
>openorb-users mailing list
>ope...@li...
>https://lists.sourceforge.net/lists/listinfo/openorb-users



-------------------------------------------------------
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_______________________________________________
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Re: [openorb-users] Queue service

[Richard C. <rg...@ze...>]

----- Original Message -----
From: "J. Scott Evans" <ev...@cp...>
To: "Eduardo Francos" <efr...@in...>;
<ope...@li...>
Sent: Thursday, August 08, 2002 10:11 PM
Subject: Re: [openorb-users] Queue service


> At 05:35 PM 8/8/02 +0200, Eduardo Francos wrote:
> >Hi,
> >I'm trying to implement a distributed task execution environment in which
> >many objects can post tasks to centralized queues, and many objects can
> >execute those tasks.
> >I've looked all over for a definition/implementation of a distributed
Queue
> >service based on Corba. By distributed queue I mean a many-to-many
delivery
> >scheme but, contrary to the NotificationService events which are
delivered
> >to all subscribers, a queue item is only delivered to one and only one
> >subscriber.
> >
> >I'm relatively new to CORBA so this may be (easily?) done with already
> >existing services but I've been unable to figure it out. I'm considering
> >implementing such a scheme based on the NotificationService sources
because,
> >IMHO,  much of the functionality is very similar, but I'd rather use
> >something existing ;-)
>
> If you have one subscriber for an event in the notification service then
> you have one and only one subscriber don't you?  Also, you might be able
to
> apply filters to direct events to only one subscriber.  Seems like the
> notification service would serve your purpose.
>
> scott

I've used the Notification Service in a similar fashion on a TIH / COURIER
project and it works quite well. You can add special fields to the
filterable body of a structured event that would allow the client to target
a particular consumer or group of consumers. With a bit of configuration you
can setup a CORBA like MPI environment.

Richard.

>
> >Any ideas?
> >
> >Eduardo
> >
> >
> >
> >-------------------------------------------------------
> >This sf.net email is sponsored by:ThinkGeek
> >Welcome to geek heaven.
> >http://thinkgeek.com/sf
> >_______________________________________________
> >openorb-users mailing list
> >ope...@li...
> >https://lists.sourceforge.net/lists/listinfo/openorb-users
>
>
>
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> openorb-users mailing list
> ope...@li...
> https://lists.sourceforge.net/lists/listinfo/openorb-users

Re: [openorb-users] Queue service

[J. S. E. <ev...@cp...>]

At 05:35 PM 8/8/02 +0200, Eduardo Francos wrote:
>Hi,
>I'm trying to implement a distributed task execution environment in which
>many objects can post tasks to centralized queues, and many objects can
>execute those tasks.
>I've looked all over for a definition/implementation of a distributed Queue
>service based on Corba. By distributed queue I mean a many-to-many delivery
>scheme but, contrary to the NotificationService events which are delivered
>to all subscribers, a queue item is only delivered to one and only one
>subscriber.
>
>I'm relatively new to CORBA so this may be (easily?) done with already
>existing services but I've been unable to figure it out. I'm considering
>implementing such a scheme based on the NotificationService sources because,
>IMHO,  much of the functionality is very similar, but I'd rather use
>something existing ;-)

If you have one subscriber for an event in the notification service then 
you have one and only one subscriber don't you?  Also, you might be able to 
apply filters to direct events to only one subscriber.  Seems like the 
notification service would serve your purpose.

scott

>Any ideas?
>
>Eduardo
>
>
>
>-------------------------------------------------------
>This sf.net email is sponsored by:ThinkGeek
>Welcome to geek heaven.
>http://thinkgeek.com/sf
>_______________________________________________
>openorb-users mailing list
>ope...@li...
>https://lists.sourceforge.net/lists/listinfo/openorb-users

[openorb-users] Queue service

[Eduardo F. <efr...@in...>]

Hi,
I'm trying to implement a distributed task execution environment in which
many objects can post tasks to centralized queues, and many objects can
execute those tasks.
I've looked all over for a definition/implementation of a distributed Queue
service based on Corba. By distributed queue I mean a many-to-many delivery
scheme but, contrary to the NotificationService events which are delivered
to all subscribers, a queue item is only delivered to one and only one
subscriber.

I'm relatively new to CORBA so this may be (easily?) done with already
existing services but I've been unable to figure it out. I'm considering
implementing such a scheme based on the NotificationService sources because,
IMHO,  much of the functionality is very similar, but I'd rather use
something existing ;-)

Any ideas?

Eduardo

Re: [openorb-users] NamingService exception when running the TradingService

[J. S. E. <ev...@cp...>]

Hi Sanjay,

This may be the same bug reported by Erik.  Try applying his patch (see 
attachment).

Scott


At 11:52 AM 8/7/02 -0400, Sanjay Ahuja wrote:
>Hi,
>         I am trying to get the TradingService to run and am new to this. I
>have the NamingService up using the command: java org.openorb.ins.Server and
>it comes up fine. Then I try to run the TradingService with the command:
>java org.openorb.trader.Server -ior -naming
>Now I get the exception:
>
>Exception in thread "main" org.omg.CORBA.TRANSIENT:   minor code: 2
>completed:
>No
>         at org.openorb.CORBA.Delegate$RequestState.findNextBinding(Unknown
>Sourc
>e)
>         at org.openorb.CORBA.Delegate$RequestState.failoverFatal(Unknown
>Source)
>
>         at
>org.openorb.CORBA.Delegate$RequestState.receiveSystemException(Unknow
>n Source)
>         at org.openorb.CORBA.Delegate$RequestState.access$000(Unknown
>Source)
>         at org.openorb.CORBA.Delegate.request(Unknown Source)
>         at org.openorb.CORBA.Delegate.is_a(Unknown Source)
>         at org.omg.CORBA.portable.ObjectImpl._is_a(Unknown Source)
>         at org.omg.CosNaming.NamingContextExtHelper.narrow(Unknown Source)
>         at org.openorb.trader.Server.main(Server.java:302)
>
>This is occurring at the code snippet shown below in the narrow() method:
>            org.omg.CosNaming.NamingContextExt nc = null;
>             try
>             {
>                 org.omg.CORBA.Object obj = orb.resolve_initial_references(
>"NameService" );
>                 nc = org.omg.CosNaming.NamingContextExtHelper.narrow( obj );
>                         }
>
>If I give the command: java org.openorb.trader.Server -ior
>then the TradingService comes up but then I can't get the Bank example
>within the TradingService to run. I have tried: java org.openorb.tns.Server
>but get the same exception.
>Any help on this appreciated. Thanks,
>Sanjay.
>
>
>
>-------------------------------------------------------
>This sf.net email is sponsored by:ThinkGeek
>Welcome to geek heaven.
>http://thinkgeek.com/sf
>_______________________________________________
>openorb-users mailing list
>ope...@li...
>https://lists.sourceforge.net/lists/listinfo/openorb-users

[openorb-users] NamingService exception when running the TradingService

[Sanjay A. <San...@pa...>]

Hi,
	I am trying to get the TradingService to run and am new to this. I
have the NamingService up using the command: java org.openorb.ins.Server and
it comes up fine. Then I try to run the TradingService with the command:
java org.openorb.trader.Server -ior -naming
Now I get the exception:

Exception in thread "main" org.omg.CORBA.TRANSIENT:   minor code: 2
completed:
No
        at org.openorb.CORBA.Delegate$RequestState.findNextBinding(Unknown
Sourc
e)
        at org.openorb.CORBA.Delegate$RequestState.failoverFatal(Unknown
Source)

        at
org.openorb.CORBA.Delegate$RequestState.receiveSystemException(Unknow
n Source)
        at org.openorb.CORBA.Delegate$RequestState.access$000(Unknown
Source)
        at org.openorb.CORBA.Delegate.request(Unknown Source)
        at org.openorb.CORBA.Delegate.is_a(Unknown Source)
        at org.omg.CORBA.portable.ObjectImpl._is_a(Unknown Source)
        at org.omg.CosNaming.NamingContextExtHelper.narrow(Unknown Source)
        at org.openorb.trader.Server.main(Server.java:302)

This is occurring at the code snippet shown below in the narrow() method: 
	   org.omg.CosNaming.NamingContextExt nc = null;
            try
            {
                org.omg.CORBA.Object obj = orb.resolve_initial_references(
"NameService" );
                nc = org.omg.CosNaming.NamingContextExtHelper.narrow( obj );
			}

If I give the command: java org.openorb.trader.Server -ior 
then the TradingService comes up but then I can't get the Bank example
within the TradingService to run. I have tried: java org.openorb.tns.Server
but get the same exception.
Any help on this appreciated. Thanks,
Sanjay.