Stateful Web Applications (SOP)

Hi,
I have a very simple question, but the answer may not be so simple. 1-a) I was just wondering, how do I build stateful Web Applications using OAS/Oracle 10g? 1-b) Specifically, I want to know what method Oracle provides for re-establishing User/Application context over a stateless HTTP protocol? 1-c) More specifically how do I do this at a pragma level, i.e. using variables, cursors, and procedures? *) What is Oracle's standard operating procedure/best method and practice for accomplishing this?
Any help is appreciated.

that will depend on what language you're using to build your application.
java, pl/sql and all the others have different ways and APIs to work with statefull sessions.

Similar Messages

BC4J ApplicationModule - best practice in Stateful web application?

When writing a stateful web application that uses BC4J framework as the model, what is considered best practice in using the Application Module. Is it okay to store an AM instance in a HttpSession, or should we opt for the features explained in the BC4J Pooling samples, which uses the SessionCookie interface?
Tips/Tricks/Pitfalls information welcome
Thx,

When writing a stateful web application that uses BC4J framework as the model, what is considered best practice in
using the Application Module. Is it okay to store an AM instance in a HttpSession, or should we opt for the features
explained in the BC4J Pooling samples, which uses the SessionCookie interface? Best practice is to store the SessionCookie (an ApplicationModule handle) as demonstrated in the pooling sample.
This will allow many advantages including scalable state management support, timeout support, and
failover / clustering support.
Caching the ApplicationModule directly can be dangerous because:
1. The AM is not serializable which could result in serialization exceptions if the servlet container were distributable.
2. The AM does not responsd to timeout which could result in memory leaks if the AM is not explicitly returned to the
pool at the end of each request.
3. For stateful applications the memory consumed by each AM could be significant. Even if the AM were correctly
released to the pool upon session timeout it would still have consumed that memory up to that point. Using the
SessionCookie along with state managed release allows for scalable state management.
Tips/Tricks/Pitfalls information welcome
Thx,

SSO from Web Application to EP

Hi,
We have a requirement where we have to provide SSO from some web application to Portal (EP6 SP15).
This web application will be having link to portal on its pages.
User store for Web Application and Portal is different.
This Web Application can be accessed from Internet.
We have not yet decided about accessing Portal from internet.
Is there any solution to this? Is this doable??
I have looked at thread
SSO from .Net application to SAP Portal
can anyone provide more information??
Thanks in advance

Hi Santosh,
there is not much to explain. It your web app side, you must have some matching table between webAppUser and the portal users and their passwords, like:
webAppUser1 portalUserA xy56123
webAppUser2 portalUserB g6324s3
Your own "integration" checks which user is logged on, takes the portal user name and password and calls the portal with the parameters "j_user" and "j_password" (and "login_submit=true"); for example via the client and a form where these values are put in and the target is requested per POST. And that's it. For the form (including the pwd) would be send to the client from your webApp server, you definitely should use https at least, as already stated.
Hope it helps
Detlev

Creating Extranet and Intranet in a single web application?

I'm confused ... again! Maybe you can help.
Microsoft's best practices for setting up SharePoint 2013 is to utilize a single web application in a single web application pool.
My Network Topology
I am setting up my intranet AND extranet in a back-to-back perimeter network topology using Claims and Kerberos Constrained Delegation. I will have a dedicated AD instance on the DMZ which my clients will be added to. My corporate users will access the site
via ADFS using their credentials on our internal network. There will be only a One Way Trust wherein the extranet AD will trust the corporate AD. We will be using Host named site collections and giving clients their own URL. They will basically be accessing
a single list and perhaps a page that gives them some reports about tasks across a few sub-sites and the a status of a single workflow on the root site of their site collection.
My SharePoint Topology
I would like to follow MS' Best Practice as stated above but I'm not clear on a few things.
1. Does it matter whether my extranet or intranet is on the Default Zone? I'm thinking that the intranet should be on the default since that is where Search crawls and that's the only place where search will be used in any way.
Is it possible to have two sets of permissions on a single web application, one for internal and one for external, without extending the default zone to create the extranet and thereby creating a new IIS website (webapp) in the process?
Thank you!
Love them all...regardless. - Buddha

Hi,
Please refer below.
https://social.msdn.microsoft.com/Forums/sharepoint/en-US/47081f77-fccb-4bc3-906b-76d187861f8c/intranet-and-extranet-web-applications-on-same-port?forum=sharepointadminlegacy
http://blogs.technet.com/b/speschka/archive/2013/06/26/logical-architecture-guidance-for-sharepoint-2013-part-1.aspx
https://social.msdn.microsoft.com/Forums/sharepoint/en-US/c0702003-8d53-46cf-ac09-49cbd270a43e/extranet-access-to-the-intranet-web-application-sharepoint-2010?forum=sharepointgeneralprevious
Krishana Kumar http://www.mosstechnet-kk.com
Please mark the replies and Proposed as answer if they help and solve your issue

I want to writte C# code for 503 Service Unavailable error to web application page immediate close connection any page loaded

Here is a ticket regarding our current client web application ( Image data add, edit , delete in folder with form data in MSSQL Database) that using code c#, web form, ajax, VS2008, MSSQL Server2008 , it appears that there is an error where the HTTP
503 error occurs.
. Below is a conversation with Host Server support assistant.Can you take a look at it?
Ben (support) - Hi
Customer - We're having an issue with our windows host
Ben (support) - What's the issue?
Customer - 503 errors
Ben (support) - I am not getting any 503 errors on your site, is there a specific url to duplicate the error?
Customer - no, it comes and goes without any change Customer - could you have access to any logs ?
Ben (support) - Error logs are only available on Linux shared hosting, however with this error it may be related to you reaching your concurrent connections
Ben (support) - You can review more about this at the link \
Customer - probably yes - how can we troubleshoot ?
Ben (support) - http://support.godaddy.com/help/article/3206/how-many-visitors-can-view-my-site-at-once
Ben (support) - This is something you need to review your code and databases to make sure they are closing the connections in a timely manner
Customer - we're low traffic, this is an image DB to show our product details to our customers
Customer - ahhhh, so we could have straying sessions ?
Ben (support) - Correct Customer - any way you could check if it's the case ?
Customer - because it was working previously
Ben (support) - We already know that's the case as you stated the 503 errors don't happen all the time if it were issue on the server the the 503 would stay.
Customer - so our 2/3 max concurrent users can max out the 200 sessions
Customer - correct ?
Customer - is there a timeout ?
Ben (support) - no that's not a time out concurrent connections are a little different then sessions and or connections. Lets say for an example you have 5 images on your site and 5 7 users come to your site this is not 7 concurrent connections but 35. They
do close after awhile hence why the 503 error comes and goes. You can have these connections close sooner using code but this is something you have to research using your favorite search engine
Customer - thank you so much
Customer - I'm surprised that this just started a few weeks ago when we haven't changed anything for months
Customer - any changes from your side ? lowering of the value maybe ?
Customer - I'm trying to understand what I can report as a significant change
Ben (support) - We haven't touched that limit in years
Ben (support) - This could just be more users to your site than normal or even more images
Customer - I was thinking that could be it indeed
Customer - so I need to research how to quickly close connections when not needed
Ben (support) - Correctly
Ben (support) - correct
Customer - thanks !!
Ben (support) - Your welcome
Analysis :
The link provided tells us : All Plesk accounts are limited to 200 simultaneous visitors.
From what Ben (support) says and a little extra research, if those aren't visitors but connections then it's quite easy to max out, especially if the connections aren't closed when finished using. I'd suggest forwarding this to Kasem to see what he thinks.
Cheers,
Customer

Hi Md,
Thank you for posting in the MSDN forum.
>>
I want to writte C# code for 503 Service Unavailable error to web application page immediate close connection any page loaded.
Since
Visual Studio General Forum which discuss VS IDE issue, I am afraid that you post the issue in an incorrect forum.
To help you find the correct forum, would you mind letting us know more information about this issue? Which kind of web app you develop using C# language? Is it an ASP.NET Web Application?
If yes, I suggest you could post the issue directly on
ASP.NET forum, it would better support your issue.
Thanks for your understanding.
Best Regards,
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click HERE to participate the survey.

Web Application Proxy and IIS

I setup the Web Application Proxy role on Server 2012 R2 a while back and published a few applications. Everything worked great. A few months later I deployed DirectAccess on the same server. Once again, everything worked great.
All of a sudden users started stating that they were receiving an "Internet Information Services" page while they were clicking links on the intranet. Clicking the refresh button in their browser would resolve the problem. It was puzzling. Eventually
I figured it out. It was only mobile users having the issue. They were taking their laptops home, clicking HTTP links on our SharePoint site (which were not deployed via Web Application Proxy), which was then hitting the Web Application Proxy server's
port 80 over HTTP (not HTTPS). Then the page was being cached by IE on their laptop/tablet. When they returned to the office the cached page was opening which is why hitting refresh resolved the issue.
I understand that one of the issues is the wrong link on the intranet (HTTP vs HTTPS). We'll have these corrected. But the real problem is that they were hitting IIS on our Web Application Proxy server. Why is IIS installed? It's not required by WAP
and I never installed it... Was it installed as part of DirectAccess? And most importantly, will I break anything by forwarding HTTP to HTTPS within IIS using URL rewrite? Will it affect DirectAccess? Our NLS is not on the DA server.
Once again, this server is only used for WAP and DA. Nothing else. Any input is greatly appreciated. Thanks!

Hi Cormang,
Yes, IIS is a part of DirectAccess.
Windows Server 2012 combines the DirectAccess feature and the RRAS role service into a new unified server role. This new Remote Access server role allows for centralized administration, configuration, and monitoring of both DirectAccess and VPN-based remote
access services.
When we try to remove the IIS, we will get the message below,
I have tried to disable the IIS server on my DirectAccess server. DirectAccess client still works properly. Therefore, it seems that the IIS is not necessary to DirectAccess.
Best Regards.
Steven Lee
TechNet Community Support

ADFS 3.0 - Web Application Proxy configuration Issue

Hi All,
We are in the process of implementing ADFS 3.0 published to the internet for o365 Federation purposes.
The setup consists of the following
- 2 x windows 2012 R2 running ADFS 3.0 ( only one server presently installed and configured though)
- 2 x Windows 2012 R2 Running Web Application Proxy ( only one server presently installed and configured though ).
There is an F5 Big-IP load-balancer for both internal and external interfaces and it has been configured after a lot of issues with the SNI part on the F5.
So, in short the setup is now a single server hosting ADFS 3.0 using SQL and a single WAP server, however the traffic to these servers are still going through the LB.
Now the issue is that i cannot complete the installation/configuration of the Web Application Proxy server. There is a firewall in between our DMZ and the internal network. I can reach the internal services via the following url and telnet on port 443
to the federation service as well. (ports for 443 and 80) are opened to internal network on the load balancer ip . I can reach https://fs.domain.com/adfs/ls/idpinitiatedsignon.aspx and federationmetadata/2007-06/federationmetadata.xml location as well
from the Web APplication proxy server without any issues or certificate prompts at all.
When i do the configuration for WAP, i use the same account which was used as a service account for the ADFS service internally. If i use a local admin account, it errors out with another message stating the connection was closed.
The certificate on the internal server along with its private key was exported and has been imported on the WAP server . This is not internal CA, instead we are using DIGICERT SSL with SAN Names for enterprise registration and work folders. Hence the CA Chain
issue is ruled out and also this is not a wild card certificate.
When the wizard starts configuring, it does establish the trust with the federation service which is shown up in the event viewer with EventID 391 within 15 seconds i get another event id 422 which states that it cannot retrieve the proxy configuration
and eventid 276 on the Federation server which states the authentication failure. this continues until the servers stops to try configuring the wizard.
I have read all the available threads on the 3.0 WAP installation /configuraiton problem and tried all the steps possible but i am still stuck with this issue.
There is one more part that i noticed on the ADFS server, that the self signed services for the token-encrypting and token decrypting are self-signed certificates. Also, in the certificates it was showing up as not trusted. and i installed them to the TRUSTED
ROOT CERTIFICATION STORE after wich i cannot see any private key showing up when viewing the certificate which means i cannot get the MANAGE PRIVATE keys option when right clicking on the cert to assign read permissions for the ADFS service account.
Should i assign the same SSL sertificate (SAN based for enterpriseregistration & Workfolders) to the token-encrypting and token-decrypting services in ADFS console or should i leave them as self signed ? I did read that self-signed is not recommended for
production environment ? If not the same certificate what are the requirements for the certificate ?
I am not sure what I am missing in the configuration that is causing this issue. The WAP servers are not part of the domain and have also ensured the time synchronization between the domain machine as well.
The service name is fs.domain.com on both the internal and external DNS ( we have domain.com as a zone in DNS internally as well ). I am able to Authenticate inside and from the WAP server when accessing the link.
Could it be a Load Balancer Configuration ? [i will try eliminating this from the configuration]
Let me know if there are any options that i can try to resolve this and get the configuration working.
Cheers,

Does the load balancer pass the certificate session through to the ADFS server or are you offloading SSL. SSL offload does not work with WAP/ADFS integration (at least at the time of writing it does not).
Can you try through the load balancer with SSL pass through turned off please.
Also as ADFS 3.0 (Server 2012 R2) uses Server Name Indication (SNI) then any health checks that run on the load balancer must support this, so if they do not then you need to use TCP 443 checks for a listening port, as doing a standard HTTPS check will fail,
and if the load balancer fails its checks whilst you are configuring ADFS that might be a reason why it has gone offline for you (error 442 is to do with failure to swap client certificates between WAP and ADFS).
Finally, check the June update to Server 2012 R2 (http://support.microsoft.com/kb/2964735) as that has fixed some certificate issues with multiple servers for WAP and ADFS when you don't have the
2012 R2 AD schema in place.
Brian Reid
Exchange MVP and Exchange and Office 365 Certified Master
www.c7solutions.com
Brian Reid C7 Solutions Ltd (www.c7solutions.com)

What is the correct way to set a web application to use HTTP or HTTPS?

In the past I've always created an HTTP web application as the default zone. Then extended the web app, creating a new IIS website on port 443 and enabled SSL. This seems to have worked fine, but I recently read an article stating that it is not good to
extend a web app unless absolutely necessary. So can someone tell me what the proper way is to configure a single web application to work with HTTP and HTTPS?

Extending the web application to support both HTTP and HTTPS is a perfectly good method and in fact is the only way to have a web application support both so what you've done is fine.
If the web application will only use HTTPS, you can set this up when you first create the web application. Specify port 443 and the SSL option (and ensure the URL has an https://) when creating the web application. You'll need to install the certificate
in IIS once the web application has been created.
Jason Warren
Infrastructure Architect
Habanero Consulting Group
habaneroconsulting.com/blog

The Web application at could not be found. Verify that you have typed the URL correctly. If the URL should be serving existing content, the system administrator may need to add a new request URL mapping to the intended application

Hi,
I have created on windows service to fetch sharepoint list ad update the list items.
when i run this service in sharepoint server(where the sharepoint site is hosted),it is working fine. If i run the same service in another machine(sharepoint installed in this machine also). it is giving the below error
The Web application at [URL] could not be found. Verify that you have typed the URL correctly. If the URL should be serving existing content, the system administrator may need to add a new request URL mapping to the intended application.
Code snippet
SPSite sharepointSite = null;
            SPWeb rootWeb = null;
            try
                //SPList current = null, previous = null;
                string colmId = ConfigurationManager.AppSettings[ID_COLM];
                List<TaskEntity> list = new List<TaskEntity>();
                sharepointSite = new SPSite(URL);
                rootWeb = sharepointSite.OpenWeb();
                SPList current = rootWeb.Lists[ConfigurationManager.AppSettings[OMEGA_REGISTRATION_LIST]];
                WriteEventLog("current" + current.Items.Count.ToString());
            catch (Exception ex)
                ExceptionMethod(ex);
            finally
                sharepointSite = null;
                rootWeb = null;
I have pointed .net framework to 3.5 version and target palform as Any CPU. Please suggest me

Hi mallela1,
I also had similar issue couple of months back when I was trying to access a remote URL from a Windows service when the site does not exists in the server where service resides.
You cannot access a remote url (even though it is SharePoint server and also in same network ) from server object model.
SPSite can look in the current server only. here what is happening is SPSite will look for this in the current server DB and it is not finding this errror.
So please dont use ServerObject model for accessing remote sites. You can use Client Object model for the code /requirement you have stated above.
I wasted lot of time in finding a work around to make to work. It did not. So look for other options.
Regards,
Nandini

Loggin my web application

Hi!
I'm extending the org.apache.log4j.jdbc.JDBCAppender to log my web application directly in a database.
OK, this is my code:
package dbweb.logging;
import java.sql.*;
import javax.sql.*;
import java.util.*;
import javax.naming.*;
public class JDBCAppender extends org.apache.log4j.jdbc.JDBCAppender {
    private InitialContext context;
    private ResourceBundle webappconf;
    private String admindb;
    private DataSource datasource;
    public JDBCAppender() {
        super();
        try {
            context = new InitialContext();
            // Get ConnectionPool
            datasource = (DataSource) context.lookup("comp/env/jdbc/MyConnectionPool");
        } catch (javax.naming.NamingException nEx) {
            System.out.println(nEx.getExplanation());
    protected Connection getConnection() {
        try {
            connection = datasource.getConnection();
            connection.getAutoCommit();
            return connection;
        } catch (SQLException sqlEx) {
            System.out.println(sqlEx.getMessage());
            return null;
    protected void closeConnection(Connection con) {
        try {
            con.close();
        } catch (SQLException sqlEx) {
            System.out.println(sqlEx.getMessage());
    protected String getLogStatement(org.apache.log4j.spi.LoggingEvent event) {
        // MAKE STATEMENT
        return sqlStatement;
}When I try to get my web application ConnectionPool it seems that the JDBCAppender InitialContex isn't the web application one, in fact this command:
datasource = (DataSource) context.lookup("comp/env/jdbc/MyConnectionPool");returns null, therefore my web application crashes when I try to log a message. This is the error:
No object bound to name java comp/env/jdbc/MyConnectionPool
How can I do to get my web application Connection Pool???
Thanks in advance.
+ Anhur +

You must have the context stated in your server.xml and web.xml file. I don't know what server you are using, but you will have to consult the documentation to see where this goes. For example, in Tomcat 5.5 you would have to do the following:
1) Add the following to server.xml:
<GlobalNamingResources>
    <Environment name="simpleValue" type="java.lang.Integer" value="30"/>
    <Resource name="jdbc/MyConnectionPool"
                auth="Container"
                type="javax.sql.DataSource"
                driverClassName="your.driver.DBDriver"
                factory="org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory"
                url="jdbc:driver:@your.dbserver.com:1200:dbname"
                username="user"
                password="pass"
                maxActive="20"
                maxIdle="10"
                maxWait="-1" />
...2) In context.xml
<ResourceLink global="jdbc/MyConnectionPool" name="jdbc/MyConnectionPool" type="javax.sql.DataSource"/>3) In yourapp/WEB-INF/web.xml:
        <resource-ref>
          <res-ref-name>jdbc/MyConnectionPool</res-ref-name>
          <res-type>javax.sql.DataSource</res-type>
          <res-auth>Container</res-auth>
     </resource-ref>

MBAM 2.5 Web Applications installation - "Web service application pool account is not valid"

Hi,
I've created a Server 2012R2 installation to install MBAM 2.5. When installing the Web Applications I keep getting "The web service application pool account is not valid".
The account I am using is a standard domain account with admin rights on the Server and I've also set the SPN (both netbios and FQDN) and Delegation.
This account is also a member of the group that is defined as RW of the SQL databases (which were setup without any problem and are on a separate Server 2008R2, SQL 2008R2 installation.
I am also getting an error with the SSRS URL , stating "SQL Server Reporting Services URL that points to the MBAM reports is not valid", despite being able to browse to the http://[FQDN]/ReportServer_MBAM location.
Thanks.

I got this kind of error when I revert back my virtual machine a lot to my previous checkpoints. I hope this can't be an issue for you.
Make sure the application pool account must have the following login roles on the SQL server and have following rights on the reporting instance:-
Required SQL Server permissions
The user responsible for installing MBAM database and reporting feature must have the local administrator privileges and the following log in permission:-
SQL Server instance login server roles:
dbcreator
processadmin
SQL Server Reporting Services instance rights:
Create Folder
Publish Reports
SQL Server Database Engine Services: SQL Server Database Engine Services must be installed and running during MBAM Server installation.
SQL Server Reporting Services (SSRS): SSRS must be installed and running during the MBAM Server installation. Configure SSRS in "native" mode and not in "SharePoint" mode.
Gaurav Ranjan

SPSiteCollection.Add in WCF service for FBA web application throws "user not found"

Hi,
I use SharePoint 2010 SP2. Programmatically I can create a FBA-based web application and now I want to add a new site collection ("/") subsequently. Everything is done in a WCF web service with its own application pool and web
application. In extracts my code looks like this:
const uint cLID = 1031;
const string cSiteWebTemplate = "BLANKINTERNETCONTAINER#0";
const string cAdminName = "i:0#.f|user|username";
const string cDisplayName = "username";
const string cSiteAdminEmail = "[email protected]";
SPWebApplication webApplication = SPWebApplication.Lookup(new Uri("https://www.someurl.com"));
using (SPSite newSite = webApplication.Sites.Add("/", "some title", "some site collection comment", cLID, cSiteWebTemplate, cAdminName, cDisplayName, cSiteAdminEmail, null, null, null, false))
I also have a Windows forms based application where the exactly same code (except the changes required for WCF services) runs smooth, no exceptions or errors.
Now every time the webApplication.Sites.Add-method is called inside the WCF service by any client I get the following exception (it is in German, English
translation in square brackets):
Microsoft.SharePoint.SPException: Der Benutzer kann nicht gefunden werden. [user cannot be found]
bei [at] Microsoft.SharePoint.Administration.SPSiteCollection.Add(SPContentDatabase database, SPSiteSubscription siteSubscription, String siteUrl, String title, String description, UInt32 nLCID, String webTemplate, String ownerLogin, String ownerName,
String ownerEmail, String secondaryContactLogin, String secondaryContactName, String secondaryContactEmail, String quotaTemplate, String sscRootWebUrl, Boolean useHostHeaderAsSiteName)
bei Microsoft.SharePoint.Administration.SPSiteCollection.Add(SPSiteSubscription siteSubscription, String siteUrl, String title, String description, UInt32 nLCID, String webTemplate, String ownerLogin, String ownerName, String ownerEmail, String secondaryContactLogin,
String secondaryContactName, String secondaryContactEmail, Boolean useHostHeaderAsSiteName)
bei Microsoft.SharePoint.Administration.SPSiteCollection.Add(String siteUrl, String title, String description, UInt32 nLCID, String webTemplate, String ownerLogin, String ownerName, String ownerEmail, String secondaryContactLogin, String secondaryContactName,
String secondaryContactEmail, Boolean useHostHeaderAsSiteName)
The process user is the same both for my Windows forms based application and my WCF service and I expect the code runs the same in both cases. I did not find any matching forum entry and I have no idea why a WCF service does not execute
the same way as a Windows forms application. Additionally, before applying SP2, I used an ASMX service with a similar code snippet and it also worked fine.
Can anyone please tell me why calling
webApplication.Sites.Add-method by a WCF service does not work? Is there anything I can do to make it work properly?

The creation of a new web application using SharePoint API works in WCF service. I also lined out that...
SPWebApplication webApplication = SPWebApplication.Lookup(new Uri(https://www.someurl.com));
... works in WCF service. In return I really get the very web application that I requested. Also exactly the same code snippet is called by exactly the same user context both in WCF Service and Windows forms application. Only for Windows forms
application it does not throw the exception but in WCF Service it does. I had some WCF Service specialist colleague looking through the code and web.config and he stated it looks ok (unfortunately he does not have any experience with SharePoint).
If you state "It's not, then your WCF config is wrong" what do you think I need to add or change in web.config in order to make it work? BTW: I did not modify app.config in my Windows forms application, so I thought I do not need to modify my web.config.

Separating heavy duty business process from web application

I'm working with a web application that just runs in a Servlet container, Jetty actually. I'm wondering what the best way to separate resource intensive processes, such as a search indexing process, from the main web application. These resource intensive processes might run at scheduled times, or they might be triggered by the events in the web application. I assume the second thing might incur much more complications on the solutions. I have a lot of questions about this, but for now, I'd just like to have some folks point out the common solutions. Changing to a EE application server is NOT an option.

chadmichael wrote:
Couple of questions:
1) What's the benefit of going to another app if you're still on the same server? I'm not being coy, I'm just trying to get a feel for the pros and cons. You could always run something on a timer from within the web application. Is there a performance benefit from being in another JVM? Then run it on the same server. No need to run it on another server if a separate JVM will do it for you.
2) How would you communicate with the main app if you needed to receive events or something? RMI?You stated it was on a timer. There is no need to be on the same server to run things from a timer. If it needs to be event driven a simple way would be to set up a separate instance of Tomcat (or Jetty) on the same or different server. Refactor out what ever the offending code is into separate servlet and have your main app just send the events off to the other instance.
There are a lot of ways to go about this. They depend on what your needs are.

Faults in BPEL when invoked from a Custom built Web Application

Hello there,
I have developed a BPEL flow for a HealthCare demo and it works fine and all is well when it is invoked from the BPEL Console's initiate screen.
I developed a webapplication to invoke the same (using the regular com.collaxa api for invokation of any BPEL process). It invokes the BPEL successfully and I can see the whole Payload in the 'receiveInput' section of the BPEL Flow. But the very First 'Assign' in which i just assign a text string as a default value to an input element faults out stating that the 'to' field is a 'zero node'... The assign stage also shows the payload with all values in it. But it errors out...
here is the payload in the 'receiveInput' stage:
<inputVariable>
<part name="payload" >
<HealthCareWorkFlowProcessRequest>
<enduser_name>pavan</enduser_name>
<enduser_phone_number>08046521345</enduser_phone_number>
<enduser_username>pkvedam</enduser_username>
<enduser_email_id>[email protected]</enduser_email_id>
<problem_desc>cancer</problem_desc>
<prob_relates_to>onchology</prob_relates_to>
<doctor_assigned/>
<doctor_assigned_email_id/>
<proposed_date>13-10-2006</proposed_date>
<proposed_time>09:00</proposed_time>
<proposed_duration>01:00</proposed_duration>
<patient_comments>swelling in the arm pit</patient_comments>
<receptionist_comments/>
<doctor_comments/>
<receptionist_username>employee</receptionist_username>
<receptionist_email_id>[email protected]</receptionist_email_id>
</HealthCareWorkFlowProcessRequest>
</part>
</inputVariable>
Here is the ASSIGN stage errors out (copied to clipboard):
[2006/10/14 10:44:54]
Error in <assign> expression: <to> value is empty at line "46". The XPath expression:
"/child::client:HealthCareWorkFlowProcessRequedst/child::client:receptionist_username"
returns zero node, when applied to document shown below:
<HealthCareWorkFlowProcessRequest>
<enduser_name>pavan</enduser_name>
<enduser_phone_number>08046521345</enduser_phone_number>
<enduser_username>pkvedam</enduser_username>
<enduser_email_id>[email protected]</enduser_email_id>
<problem_desc>cancer</problem_desc>
<prob_relates_to>onchology</prob_relates_to>
<doctor_assigned/>
<doctor_assigned_email_id/>
<proposed_date>13-10-2006</proposed_date>
<proposed_time>09:00</proposed_time>
<proposed_duration>01:00</proposed_duration>
<patient_comments>swelling in the arm pit</patient_comments>
<receptionist_comments/>
<doctor_comments/>
<receptionist_username>employee</receptionist_username>
<receptionist_email_id>[email protected]</receptionist_email_id>
</HealthCareWorkFlowProcessRequest>
<selectionFailure>
<part name="summary" >
<summary>XPath query string returns zero node. According to BPEL4WS spec 1.1 section 14.3, The assign activity <to> part query should not return zero node. Please check the BPEL source at line number "46" and verify the <to> part xpath query. </summary>
</part>
</selectionFailure>

oops... sorry... I had typed it in as there is no way to copy that 'error message' on to the clipboard from the BPEL FLOW depiction.
it must have read 'HealthCareWorkFlowProcessRequest'...
the problem is not with the typo... :(
Am not able to find the root cause... but the flow fails when invoked from my web application...

Compiling simple web application in samples

I recently downloaded the J2EE SDK and opened the indexSamplesDomain.html file under the samples directory. Clicked the simple web application link and proceeded to follow instructions to build the application. In this very first example I received an error stating that asant tool could not find the common-ant.xml file in the samples directory. Anyone have any idea the simplest example application has a bug in the build script????
thanks

Hi
You should have a variable called FORMACTION_22_0 ,what you could try as well is to remove the forms autocorrelation from the script:
In OpenScript: View -> OpenScript Preferences -> Correlation -> HTTP, click on the +* to open DOM Correlation, then double click on it and uncheck the action check box.
Then you will need to re-correlate the script.
Script -> Correlate Script
That should remove all the form variables.
Alex

Stateful Web Applications (SOP)

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