Accessing EJB's from CORBA clients

Hi!
Can someone answer one badly important question?
Is it possible to access EJB's from CORBA clients directly, as if the
beans were ordinary CORBA objects? I mean DIRECT access - WIDHOUT
CORBA/Java server application as a liason between CORBA client and EJB
server!
I'm using WebLogic Enterprise 5.0.1.
Thanks in advance.
Aleksey.

Please reference a later posting on this very same question.
-- Lou Caraballo
Sr. Systems Engineer
BEA Systems Inc., Denver Telco Group
719-332-0818 (cell)
720-528-6073 (denver)
Aleksey Bukavnev <[email protected]> wrote in message
news:[email protected]..
Thank you!
Aleksey.
Bill Lloyd wrote:
There is a java to IDL mapping, which is quite complex. To use it, you
must
have an ORB which supports, at minimum, CORBA 2.3. ORBs I know of which
support this include Orbix 2000 for Java, Visibroker 4.0 for Java, and
Orbacus 4.0 for Java.
Also, check out the June 2000 "Java Report" which has an article onthis.
>>
To be perfectly honest, though, the best solution is to write a bridge,in
Java. One side is IDL, which CORBA clients use. The implementation ofthat
IDL makes RMI requests to get the necessary info. This solution willwork,
guaranteed. The portion of the spec for the java to IDL mapping isstill
quite new, and I would expect some, uh, "unexpected features" at thistime.
>>
-B
"Aleksey Bukavnev" <[email protected]> wrote in message
news:[email protected]..
Hi!
Can someone answer one badly important question?
Is it possible to access EJB's from CORBA clients directly, as if the
beans were ordinary CORBA objects? I mean DIRECT access - WIDHOUT
CORBA/Java server application as a liason between CORBA client and EJB
server!
I'm using WebLogic Enterprise 5.0.1.
Thanks in advance.
Aleksey.

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RE: Accessing multiple Env from single Client-PC

Look in the "System Management Guide" under connected environments page
72. This will allow services in your primary environment to find
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The connected environments bug that was fixed in 2F4 is #24282. The
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From: Inho Choi[SMTP:[email protected]]
Sent: Monday, April 21, 1997 2:04 AM
To: [email protected]
Subject: Accessing multiple Env from single Client-PC
Hi, All!
Is there anybody has any idea to access multiple environments from
single client-PC? I have to have multiple environments because each
environment resides geographically remote node and network bandwidth,
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Using Control Panel for doing this is not easy for those who are not
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to access all necessary services.
I could consider two option to doing this:
1. Make some DOS batch command file to switch different environment
like, copying back/forward between environment repositories and
set up forte.ini for changing FORTE_NS_ADDRESS. After then, invoke
proper client partition(ftexec).
2. Duplicate necessary services among each environment.
But, these two options have many drawbacks in terms of system
management(option 1), performance(option 2) and others.
Has anybody good idea to implement this? Any suggestion would be
appreciated.
Inho Choi, Daou Tech., Inc.
email: [email protected]
phone: +82-2-3450-4696

Look in the "System Management Guide" under connected environments page
72. This will allow services in your primary environment to find
services in your connected environment. However, there is a bug
reported on this feature which is fixed in 2F4 for the HP and H1 for all
other servers. The following is from Forte:
The connected environments bug that was fixed in 2F4 is #24282. The
problem
was in the nodemgr/name server source code and caused the following to
occur:
Service1 is in connected envs A and B.
Client has env A as primary, B as secondary.
Envmgr A dies before the client has ever made a call to Service1.
Afer env A is gone, client makes a call to Service1 which causes Envmgr
B to
seg fault.
You should upgrade your node manager/env manager nodes to 2F4. The 2F2
development and runtime clients are fully compatible with 2F4 servers.
Kal Inman
Andersen Windows
From: Inho Choi[SMTP:[email protected]]
Sent: Monday, April 21, 1997 2:04 AM
To: [email protected]
Subject: Accessing multiple Env from single Client-PC
Hi, All!
Is there anybody has any idea to access multiple environments from
single client-PC? I have to have multiple environments because each
environment resides geographically remote node and network bandwidth,
reliability are not good enough to include all the systems into single
environment.
Using Control Panel for doing this is not easy for those who are not
familiar with Windows. The end-user tend to use just single application
to access all necessary services.
I could consider two option to doing this:
1. Make some DOS batch command file to switch different environment
like, copying back/forward between environment repositories and
set up forte.ini for changing FORTE_NS_ADDRESS. After then, invoke
proper client partition(ftexec).
2. Duplicate necessary services among each environment.
But, these two options have many drawbacks in terms of system
management(option 1), performance(option 2) and others.
Has anybody good idea to implement this? Any suggestion would be
appreciated.
Inho Choi, Daou Tech., Inc.
email: [email protected]
phone: +82-2-3450-4696

Accessing multiple Env from single Client-PC

Hi, All!
Is there anybody has any idea to access multiple environments from
single client-PC? I have to have multiple environments because each
environment resides geographically remote node and network bandwidth,
reliability are not good enough to include all the systems into single
environment.
Using Control Panel for doing this is not easy for those who are not
familiar with Windows. The end-user tend to use just single application
to access all necessary services.
I could consider two option to doing this:
1. Make some DOS batch command file to switch different environment
like, copying back/forward between environment repositories and
set up forte.ini for changing FORTE_NS_ADDRESS. After then, invoke
proper client partition(ftexec).
2. Duplicate necessary services among each environment.
But, these two options have many drawbacks in terms of system
management(option 1), performance(option 2) and others.
Has anybody good idea to implement this? Any suggestion would be
appreciated.
Inho Choi, Daou Tech., Inc.
email: [email protected]
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Hi, All!
Is there anybody has any idea to access multiple environments from
single client-PC? I have to have multiple environments because each
environment resides geographically remote node and network bandwidth,
reliability are not good enough to include all the systems into single
environment.
Using Control Panel for doing this is not easy for those who are not
familiar with Windows. The end-user tend to use just single application
to access all necessary services.
I could consider two option to doing this:
1. Make some DOS batch command file to switch different environment
like, copying back/forward between environment repositories and
set up forte.ini for changing FORTE_NS_ADDRESS. After then, invoke
proper client partition(ftexec).
2. Duplicate necessary services among each environment.
But, these two options have many drawbacks in terms of system
management(option 1), performance(option 2) and others.
Has anybody good idea to implement this? Any suggestion would be
appreciated.
Inho Choi, Daou Tech., Inc.
email: [email protected]
phone: +82-2-3450-4696

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Hai friends,
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Please send souce code to this id
[email protected]
Ok Friends i am wating for replys

Is it possible to access EJB's from applet?Yes, but not recommended.
if Yes,Please let me know how will happen and also if
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mail id is : [email protected]
Are you inviting spam by passing your mail id?
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Greetings,
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pager lines 24
logging enable
logging asdm informational
mtu outside 1500
mtu inside 1500
mtu DMZ 1500
mtu management 1500
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icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-647.bin
asdm history enable
arp timeout 14400
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nat (inside,any) source static obj-192.168.10.0 obj-192.168.10.0 destination static obj-192.168.254.0 obj-192.168.254.0 no-proxy-arp route-lookup
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nat (outside,inside) source static SIP_REGISTRAR SIP_REGISTRAR destination static interface NS1000_INT service SIP_INIT_UDP SIP_INIT_UDP
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object network obj_any-01
nat (inside,outside) dynamic obj-0.0.0.0
object network obj_any-02
nat (inside,DMZ) dynamic obj-0.0.0.0
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nat (DMZ,outside) dynamic obj-0.0.0.0
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nat (management,outside) dynamic obj-0.0.0.0
object network obj_any-05
nat (management,DMZ) dynamic obj-0.0.0.0
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timeout pat-xlate 0:00:30
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crypto ipsec ikev1 transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set pfs
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set ikev1 transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA ESP-3DES-MD5 ESP-DES-SHA ESP-DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic SYSTEM_DEFAULT_CRYPTO_MAP
crypto map outside_map interface outside
crypto ca trustpoint ASDM_TrustPoint0
enrollment self
subject-name CN=
crl configure
crypto ca trustpoint _SmartCallHome_ServerCA
crl configure
crypto ca certificate chain ASDM_TrustPoint0
certificate 2f0e024d
quit
crypto ca certificate chain _SmartCallHome_ServerCA
certificate ca 6ecc7aa5a7032009b8cebcf4e952d491
quit
crypto isakmp identity address
crypto ikev1 enable outside
crypto ikev1 policy 10
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
telnet 192.168.1.0 255.255.255.0 management
telnet timeout 5
ssh 62.255.171.0 255.255.255.224 outside
ssh 192.168.254.0 255.255.255.0 outside
ssh 192.168.10.0 255.255.255.0 inside
ssh 192.168.25.0 255.255.255.0 inside
ssh timeout 5
ssh version 2
console timeout 0
vpn-sessiondb max-other-vpn-limit 250
vpn-sessiondb max-anyconnect-premium-or-essentials-limit 2
dhcpd address 192.168.1.2-192.168.1.254 management
dhcpd enable management
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
ntp server 192.168.10.6 source inside prefer
webvpn
group-policy Remote-VPN internal
group-policy Remote-VPN attributes
wins-server value 192.168.10.21 192.168.10.22
dns-server value 192.168.10.21 192.168.10.22
vpn-tunnel-protocol ikev1
split-tunnel-policy tunnelspecified
split-tunnel-network-list value Remote-VPN_splitTunnelAcl
default-domain value
username blank password blank encrypted privilege 0
username blank attributes
vpn-group-policy Remote-VPN
username blank password encrypted privilege 0
username blank attributes
vpn-group-policy Remote-VPN
tunnel-group Remote-VPN type remote-access
tunnel-group Remote-VPN general-attributes
address-pool VPN-Pool
default-group-policy Remote-VPN
tunnel-group Remote-VPN ipsec-attributes
ikev1 pre-shared-key *****
class-map inspection_default
match default-inspection-traffic
policy-map type inspect dns preset_dns_map
parameters
message-length maximum client auto
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect netbios
inspect tftp
inspect ip-options
inspect sip
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
call-home
contact-email-addr
profile CiscoTAC-1
destination address http https://tools.cisco.com/its/service/oddce/services/DDCEService
destination address email [email protected]
destination transport-method http
subscribe-to-alert-group diagnostic
subscribe-to-alert-group environment
subscribe-to-alert-group inventory periodic monthly
subscribe-to-alert-group configuration periodic monthly
subscribe-to-alert-group telemetry periodic daily
Cryptochecksum:b8263c5aa7a6a4d9cb08368c042ea236

Your config was missing a no-nat between your "192.168.20.0" and "obj-192.168.254.0"
So, if you look at your config there is a no-nat for inside subnet "obj-192.168.10.0" as shown below.
nat (inside,any) source static obj-192.168.10.0 obj-192.168.10.0 destination static obj-192.168.254.0 obj-192.168.254.0
So all you have to do is create a no-nat for your second subnet, like I showed you before, the solution was already there on your config but I guess you over looked at it.
I hope that helps.
Thanks
Rizwan Rafeek

Excepion when initializing EJB as a CORBA client

Hi,
I am trying to connect to a remote CORBA server(C++) through my ejb running on PE8.2, but when I init the IONA ORB in the ejb, I get the follwing exception:
Caused by: org.omg.CORBA.INITIALIZE: Exception reading properties, probably this is an applet but no applet parameter supplied to ORB.init vmcid: 0x0 minor code: 0 completed: No
     at IE.Iona.OrbixWeb.CORBA.ORB._set_parameters(ORB.java:1573)
     at IE.Iona.OrbixWeb.CORBA.ORB.<init>(ORB.java:81)
     at IE.Iona.OrbixWeb.CORBA.ORB._create_orb(ORB.java:1611)
     at IE.Iona.OrbixWeb.CORBA.ORB._initialise(ORB.java:1545)
     at IE.Iona.OrbixWeb.CORBA.ORB.init(ORB.java:1505)
Here is the ORB invocation from my ejb:
public void initOrb(String p_hostName, String p_serverName) {
String[] args = {p_hostName, p_serverName};
Properties p = new Properties();
          p.setProperty("org.omg.CORBA.ORBClass","IE.Iona.OrbixWeb.CORBA.ORB");
          p.setProperty("org.omg.CORBA.ORBSingletonClass", "IE.Iona.OrbixWeb.CORBA.singletonORB");
          // Initialize the ORB
          ORB orb = (ORB)ORB.init(args,p);
     }All the required libs are included in the appserver lib.
I have tried this with JBOSS and it works fine.
Has anyone seen this before?

This has been resolved by setting the PropertyPermission to read,write
in the application server server.policy
Hope this helps someone

Unable to access EJB with servlet as client

Hi,
I am Naga, a java developer trying to work with Weblogic6.1 at present.
When i try to use Servlet as a client to my EJB, I am getting an error
saying that Home class not found.
i have kept the Servlet class file under
E:\bea\wlserver6.1\config\mydomain\applications\DefaultWebApp\WEB-INF\classe
s
folder.
i mentioned the EJB-ref tags in web.xml too, But it is not working.
How to make the EJB home and remote interfaces visible to Servlet with
weblogic6.1 ?
If i put the EJB.jar file under
E:\bea\wlserver6.1\config\mydomain\applications\DefaultWebApp\WEB-INF\lib
directory the application is working. Is this is the only way to do ?
After reading the article "EJB 2 and J2EE Packaging, Part II" at http://www.onjava.com/pub/a/onjava/2001/07/25/ejb.html,
i came to know that their is another way to do this, but i could not get it properly.
If any one could explain about the series of steps involved, that would be
really great and appreciated.
Thanks in advance
Naga.

Hi Naga,
If webApp and EJB are deployed as separate components,then you need to have EJB
classes in WEB-INF/classes of your webApp.
If the app is in EAR format then the servlet can see the EJb classes directly.
Thanks,
Vijay
"Nagamahesh" <[email protected]> wrote:
>
Hi,
I am Naga, a java developer trying to work with Weblogic6.1 at present.
When i try to use Servlet as a client to my EJB, I am getting an error
saying that Home class not found.
i have kept the Servlet class file under
E:\bea\wlserver6.1\config\mydomain\applications\DefaultWebApp\WEB-INF\classe
s
folder.
i mentioned the EJB-ref tags in web.xml too, But it is not working.
How to make the EJB home and remote interfaces visible to Servlet with
weblogic6.1 ?
If i put the EJB.jar file under
E:\bea\wlserver6.1\config\mydomain\applications\DefaultWebApp\WEB-INF\lib
directory the application is working. Is this is the only way to do ?
After reading the article "EJB 2 and J2EE Packaging, Part II" at http://www.onjava.com/pub/a/onjava/2001/07/25/ejb.html,
i came to know that their is another way to do this, but i could not
get it properly.
If any one could explain about the series of steps involved, that would
be
really great and appreciated.
Thanks in advance
Naga.

Accessing java service from c++ client through wsdl

Java service is deployed in SOAP. It has to be accessed by the client program written in c++ language. It should be done through WSDL.
If anyone had previously faced or came to know abt this problem.
Pls inform me abt the process.

Thank u for taking care of me
But the hint given by u is not apt to my query.
If any new suggestion pls send again

Invoke EJB methods from RMI client -- OutOfMemory error on the server

Each time I tried to invoke a method of my session bean, on the server I have an
error : java.lang.OutOfMemoryError
And the client doesn't receive any answer !
Do you have an idea ?
(everything before seems OK - context, narrow, home.create() ...)
Config : WL6.1 SP1 on Solaris 2.8 / client Win2000 jdk 1.3.1

"Sabine" <[email protected]> writes:
Each time I tried to invoke a method of my session bean, on the server I have an
error : java.lang.OutOfMemoryError
And the client doesn't receive any answer !
Do you have an idea ?
(everything before seems OK - context, narrow, home.create() ...)
Config : WL6.1 SP1 on Solaris 2.8 / client Win2000 jdk 1.3.1Are you using RMI-IIOP? If so I suggest you try SP3.
andy

AM and accessing EJB's directly

We are protecting our web applications using AM. There are also several batch jobs running that use direct ejb access. We want to authenticate/authorize access to these ejb's as well. Has anyone tried this? Is there a way to do this without coding a new JAAS login module?
Message was edited by:
Stalis
Message was edited by:
Stalis

Please reference a later posting on this very same question.
-- Lou Caraballo
Sr. Systems Engineer
BEA Systems Inc., Denver Telco Group
719-332-0818 (cell)
720-528-6073 (denver)
Aleksey Bukavnev <[email protected]> wrote in message
news:[email protected]..
Thank you!
Aleksey.
Bill Lloyd wrote:
There is a java to IDL mapping, which is quite complex. To use it, you
must
have an ORB which supports, at minimum, CORBA 2.3. ORBs I know of which
support this include Orbix 2000 for Java, Visibroker 4.0 for Java, and
Orbacus 4.0 for Java.
Also, check out the June 2000 "Java Report" which has an article onthis.
>>
To be perfectly honest, though, the best solution is to write a bridge,in
Java. One side is IDL, which CORBA clients use. The implementation ofthat
IDL makes RMI requests to get the necessary info. This solution willwork,
guaranteed. The portion of the spec for the java to IDL mapping isstill
quite new, and I would expect some, uh, "unexpected features" at thistime.
>>
-B
"Aleksey Bukavnev" <[email protected]> wrote in message
news:[email protected]..
Hi!
Can someone answer one badly important question?
Is it possible to access EJB's from CORBA clients directly, as if the
beans were ordinary CORBA objects? I mean DIRECT access - WIDHOUT
CORBA/Java server application as a liason between CORBA client and EJB
server!
I'm using WebLogic Enterprise 5.0.1.
Thanks in advance.
Aleksey.

Accessing EJB's from CORBA clients

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