Java Portlets only Java Derived?

I need to build a JSR 168 compliant portlet using Weblogic Portal 9.x, however the only option that states that it is JSR 168 compliant is the Java Portlet that requires a class on creation.
Does this mean that I must have a pre-defined java class in order to make one of these portlets? If so is it a data container class or more like an interface? This is my first time developing with this tool, so any help is appreciated.

Yes, you do need a class that the JSR-168 portlet executes when rendered. The Java class basically is responsible for rendering the content in the portlet so I would think of it as more of an interface. Here are two links that provide more details for JSR-168:
http://e-docs.bea.com/workshop/docs81/doc/en/portal/buildportlets/portletJava.html
http://dev2dev.bea.com/pub/a/2004/02/JSR168.html

Similar Messages

Java Portlets only JSR 168 compatible Portlet in Weblogic Portal 9.x?

I and need to develop a JSR 168 Portlet that contains JSF components. I have looked through a lot of the training material, newsgroups and web sites for any information on how to perform this within the Weblogic Portal tools and have been unsuccessful.
Is there a way in Weblogic Portal 9.x to create a Portlet that is JSR 168 compliant and capable of containing JSF components through the tool interface?

I and need to develop a JSR 168 Portlet that contains JSF components. I have looked through a lot of the training material, newsgroups and web sites for any information on how to perform this within the Weblogic Portal tools and have been unsuccessful.
Is there a way in Weblogic Portal 9.x to create a Portlet that is JSR 168 compliant and capable of containing JSF components through the tool interface?

BEA 8.1 SP3 / Java Portlets replaceDynamicMarkup() Javascript error

Hi
I have been using BEA Portal SP2 for a while and have swapped over to SP3 but I am now seeing a Javascript error in the BEA portal page within a javascript method replaceDynamicMarkup(). This occurs when I have multiple Java Portlets on a page (can be the same portlet multiple times) and you maximise the portlet either programmatically or via the maximise button.
The problem appears to be that when you maximise the portlet, the contents of the replaceDynamicMarkup do not change and try to access html associated with portlets not being displayed on the page. For example, the method with one portlet maximized and with 2+ portlets in normal mode is the same.
With one portlet maximised, so only one visible:
function replaceDynamicMarkup()
{ var elem = document.getElementById("0_32");
elem.innerHTML = "<span id='0_32'>SP3Test</span>";
var elem = document.getElementById("0_38");
elem.innerHTML = "<span id='0_38'>SP3Test</span>";
because the other portlet isnt present both netscape 7 and IE 6 throw a "null" Javascript errors. As there is no check to ensure that the element is actually retrieved from the dom. Is there a workaround / fix for this?
Thanks
Andrew.

Hi,
I am not sure whether i am identifying the problem correctly or not, but we have seen this behavior with the portlets, as when we have two instances of a portlet on the same page and both are using same JavaScript function ,since all the portles are included in the same page we need to use Encode namespace for the java script functions so that a portlet Instance can identify its Java script function correctly
While writing javascript function use
function <portlet:nameSpace/>doSubmit()
alert("good Morning ");
While calling Javascript function use
<input type=button value="Sumbit" onClick="javascript:<portlet:nameSpace/>doSubmit()"/>
See if this can solve your Java Script problem.
Thanks
Milind

Java Portlet built with BC4J JSP

Dear Forum,
The BC4J JSP tag "jbo:ApplicationModule" creates a stateful session by storing a sessioncookie: When this cookie is found, the application module object will be re-used across webpages.
When a Java Portlet is built using BC4J-JSP, this portlet plants a cookie in its client (the portal). This seems however not to be possible. This means that the portlet can only be stateless.
Has anyone a clue how to plant a cookie in the portal; thus enabling stateful sessions?
Kind regards,
Edwin Grosmann

It looks like WebSphere is wrapping the Oracle JDBC driver with it's own classes (like com.ibm.ejs.cm.proxy.OraclePreparedStatementProxy).
On Step 1 of the Business Components Project Wizard, change the SQL Flavor toSQL92 and the Type Map to Java.
This is the same type of thing required with talking to non Oracle databases (in short, it tells BC4J not to cast things to Oracle classes and just talk against java.sql.*)
Hope this helps,
Rob
Team JDev

BC4J Java portlet anyone?

Hi,
Has anyone managed to write a BC4J Java portlet? Or for that matter a UIX Java portlet? I have found some info on writing a Struts based Java portlet but nothing on either BC4J or UIX.
Thanks,
Steve

I have converted a three page bc4j jsp application to three portlets in 902618 version of the portal. But i was feeling lazy to remember all the steps i had to go through..but then i found these steps in Oracle9i Application Server Developer's Guide.
chapter 9 - Running in a Portal Framework
Looks like they have got most of the steps if you want to turn your application into portlets.
Here is a cut and paste for you..
--------------------xx------------------------
You need to add some calls to the JPDK API to make your application run in a portal environment.
Update the links where you want to display another page within the portlet. If the file that contains the URL is an HTML page, you have to change it to a JSP page because you need to determine the URL dynamically.
See Section 9.4, "Update the Links Between Pages Within a Portlet".
Invoke the include method instead of forward. You have to use include because the portal needs to add data from other portlets. If you use forward, the portal does not have a chance to gather data from the other portlets.
See Section 9.5, "Use include instead of the forward Method".
Use the portletParameter method in the HttpPortletRendererUtil class to ensure that request parameters have unique names. This ensures that applications on the portal page read only their parameters and not parameters for other applications. This also enables applications to use the same parameter name; the method prefixes parameter names with a unique string for each application.
See Section 9.6, "Protect Parameter Names".
Make all URL paths absolute paths using the absoluteLink or the htmlFormActionLink method in the HttpPortalRendererUtil class, depending on the HTML tag.
See Section 9.7, "Make All Paths Absolute".
---------------------xx---------------------------
This might give you a starting point.

How to enable ping service on java-stack only system

I have installed SAP NetWeaver 7.0 - Java Trial on local host.
How can you activate the ping service there?
It should work under "http://localhost:50000/sap/bc/ping"
(I know how to activate it with transaction SICF in an abap system, but I have java-stack only here, so I can't call transactions. I can only use the Visual Admin, right?, but there I could not detect a ping service so far)
More detailed:
I created system "SAP_WebDynpro_XSS". (this is necessary for connecting to ECC abap backend for ESS Packages) and set following parameter:
template:"SAP system using connection string"
     category: Web Application Server
          Web AS host name: chrisSAP:50000
          Web AS path: /webdynpro/dispatcher/
          Web AS protocol: http
But when I test the "SAP Web AS Connection" for this system, I got following error:
7. The Web AS ping service http://chrisSAP:50000/sap/bc/ping was not pinged successfully. If the ping service is not activated on the Web AS, you can try to call the ping service manually.
8. An HTTP/S connection to http://chrisSAP:50000/webdynpro/dispatcher/ was not
obtained successfully; this might be due to a closed port on the Firewall.
I guess step 8 did not pass because step 7 failed, and not because of a closed port or firewall (I made sure everything is open.)
The strange thing is that the connection test fails, but the connection seems to work fine!
I mean I can see the front ESS page in the portal when logging in with an ESS-user, and there are no errors in the log. If I change the SAP_WebDynpro_XSS parameters to some other made-up values, then the front ESS page does not come up and some errors appear with "SAP_WebDynpro_XSS" inside.
That proofs that the connection is working despite the failed connection test, right?. But what can I do that the connection test passes? It seems that somehow SAP has hardcoded the path "/sap/bc/ping" which usually exists on an abap system. But I have java-stack only, so how can I tell that the function that runs the test?
A system connection test fails, but the connection is working fine!
If someone could explain that to me...

Dear Srini Nookala,
thank you for your answer. Unfortunately I don't understand the relation of my question to your answer.
>> check with OSS note 1019335 SAP NetWeaver AS Java 6.40 SP21
I have Version 7.0 SP14. I read the OSS note, but there are around 100 changes listed. I read them all, but couldn't figure out one that has to do with ping and system test. So which sentence inside the note are you referring to?
>> The problem is due to JCo parameters configuration not properly, Ask Basis team, they will do it.
I am basis team. I configured the JCo properly as described in manual and tested them afterwards. They run successful. Also all the links that you gave refer to JCO connections about how to set them up and test them. But what have JCO connections to do with System-connection tests? As far as I know JCO-connections are not used for system connectivity tests. You can set them up independent. I understand that JCO-connections are used for getting data from backend servers. But the system "SAP_WebDynpro_XSS" is defined for determing the webdynpros on localhost (frontend, not backend).
So please can you explain me what JCO-connections which refer to remote hosts have to do with a ping service on local host that cannot be reached? And which part would be not configured "properly"? Timeouts? user?
To define my question more properly:
Is it possible to make the connection test work on a java-stack only host for a system that refers to itself (localhost)? Or is it a known bug?
Some sub-questions
Am I using the right system template (I am using "SAP system using dedicated application server")
I have no abap on local host (chrisSAP). Only java stack. Usually path ..sap/bc/ping refers to an abap system, right? So in my opinion I have 3 possibilities:
- install abap-stack on local host (portal) and activate ping service.
- somehow install a ping service that runs under the given URL in Visual Admin (how?)
- somehow tell the connection test to skip pinging and continue test. (How?)
Any additional advice would be highly appreciated.

Using SSO username/password in java portlet for Database Connection

Hi all,
We implemented java portlet with environment Oracle Application server 10.1.2 and Portal 10.1.4
At present we are picking the database username and password and connect string in properties and our
java class is reading the properties file and connecting to database to fetch the records.
Our idea is to not to pick the username/password and connect string from the properties file or
not to configure the datasource in data_source.xml.
Our Requirement is who ever login to the Portal(SSO) our java class should pick the sso username/password and
connect to database to fetch the record(s).
Because our database users are one to one mapped to sso user(s) of portal.
We request anyone to guide us how can we do it or suggest any suitable solution for our requirement.
Thanks
Dan Tey

I think this is a no-go, since you cannot retrieve a cleartext password from the OID if I'm correct.

Deploying Jave portlet on Oracle Application Server 10g

I have installed Oracle 10g Application server, donwloaded and installed JDevleoper 9.0.5.1 and the latest Java Portal Development and as well as the JDeveloper portlet-addin. Now, I followed the instructions from the http://portalstudio.oracle.com/pls/ops/docs/FOLDER/COMMUNITY/PDK/ARTICLES/BUILD.JSR168.PORTLETS.USING.JAVA.PORTLET.WIZARD.9IJDEVELOPER.HTML
On using JDeveloper addin wizrd to create a java portlet and so far so good. However, I am stuff on the last bit on deployment. It document says "# Now use the URL provided in the log page at the bottom of JDeveloper to get part of your URL (e.g. http://myserver.uk.oracle.com:8888/my-portlet) and complete the URL.
http://myserver.uk.oracle.com:8888/my-portlet/portlets?WSDL
Now use this URL to register your portlet with OracleAS Portal.
But when i deploy my application (just a test thing), from the deployment tab I get:
---- Deployment started. ---- 22-Mar-2005 14:11:27
Target platform is Oracle Application Server 10g (hotseatConnection).
Wrote WAR file to C:\work\oracle\MyProject\MyPortlet\deploy\hotseat.war
Wrote EAR file to C:\work\oracle\MyProject\MyPortlet\deploy\hotseat.ear
Invoking DCM servlet client...
C:\Java\j2sdk1.4.2_03\jre\bin\javaw.exe -Djava.protocol.handler.pkgs=HTTPClient -jar C:\Java\JDeveloper9.0.5.1\jdev\lib\oc4j_remote_deploy.jar http://194.83.41.114:1811/Oc4jDcmServletAPI/ ias_admin **** redeploy /u01/app/oracle/product/10.1.0/oraMid_904 C:\work\oracle\MyProject\MyPortlet\deploy\hotseat.ear hotseat
Initializing log
Servlet interface for OC4J DCM commands
Command timeout defined at 600 seconds
Executing DCM command...
Executing command redeploy /u01/app/oracle/product/10.1.0/oraMid_904 C:\work\oracle\MyProject\MyPortlet\deploy\hotseat.ear hotseat UNDEFINED
Command = REDEPLOY
Reading application's ear file
Ear file was successfully read
Opening connection to Oc4jDcmServlet
Setting userName to ias_admin
Sending command to DCM servlet
HTTP response code = 200, HTTP response msg = OK
Command was successfully sent to Oc4jDcmServlet
Receiving session id from servlet to check command status
Session id = c253297271317c3f930003c405ea91ff598582f0be0
Please, wait for command to finish...
Checking command status...
Setting userName to ias_admin
Setting Cookie to JSESSIONID=c253297271317c3f930003c405ea91ff598582f0be0
Checking command status
HTTP response code = 200, HTTP response msg = OK
Command has not finished yet
Checking command status...
Setting userName to ias_admin
Setting Cookie to JSESSIONID=c253297271317c3f930003c405ea91ff598582f0be0
Checking command status
HTTP response code = 200, HTTP response msg = OK
Command has not finished yet
Checking command status...
Setting userName to ias_admin
Setting Cookie to JSESSIONID=c253297271317c3f930003c405ea91ff598582f0be0
Checking command status
HTTP response code = 200, HTTP response msg = OK
Command has not finished yet
Checking command status...
Setting userName to ias_admin
Setting Cookie to JSESSIONID=c253297271317c3f930003c405ea91ff598582f0be0
Checking command status
HTTP response code = 200, HTTP response msg = OK
Command has not finished yet
Checking command status...
Setting userName to ias_admin
Setting Cookie to JSESSIONID=c253297271317c3f930003c405ea91ff598582f0be0
Checking command status
HTTP response code = 200, HTTP response msg = OK
Command has not finished yet
Checking command status...
Setting userName to ias_admin
Setting Cookie to JSESSIONID=c253297271317c3f930003c405ea91ff598582f0be0
Checking command status
HTTP response code = 200, HTTP response msg = OK
Command has not finished yet
Checking command status...
Setting userName to ias_admin
Setting Cookie to JSESSIONID=c253297271317c3f930003c405ea91ff598582f0be0
Checking command status
HTTP response code = 200, HTTP response msg = OK
Command has not finished yet
Checking command status...
Setting userName to ias_admin
Setting Cookie to JSESSIONID=c253297271317c3f930003c405ea91ff598582f0be0
Checking command status
HTTP response code = 200, HTTP response msg = OK
Command has not finished yet
Checking command status...
Setting userName to ias_admin
Setting Cookie to JSESSIONID=c253297271317c3f930003c405ea91ff598582f0be0
Checking command status
HTTP response code = 200, HTTP response msg = OK
Command has not finished yet
Checking command status...
Setting userName to ias_admin
Setting Cookie to JSESSIONID=c253297271317c3f930003c405ea91ff598582f0be0
Checking command status
HTTP response code = 200, HTTP response msg = OK
Command has finished
Receiving command exit value
Receiving command output
**** No output was received from command
Closing connection to Oc4jDcmServlet
DCM command completed successfully.
Output:
Exit status of DCM servlet client: 0
Elapsed time for deployment: 1 minute, 45 seconds
---- Deployment finished. ---- 22-Mar-2005 14:13:12
My question is, HOW DO I ACCESS the deployed application, since it didn't specify the URL where it's deployed????
Many thanks
P/S
I have tried:
http://{myserver}:8888/{my-portlet}/portlets?WSDL but that doesn't work

Hi FormsEleven,
When you say you can do this or you have done for demo then considering following directory structure if I have two forms having common form names how it will be resolved?
Or how the url to access these forms will be?
As shown in the following structure consider we have Form1 in sub directory1 as well as in sub-directory2 then how the link to access these forms will be?
- Hosting Directory (formsweb.cfg entry)
- Sub Directory1
      - Form1
      - Form2
- Sub Directory2
      - Form1
      - Form4
- Sub Directory3
      - Form5
      - Form6

ABAP+Java Kernel and only Java Kernel

Hi Friends,
Is there any difference in ABAP+Java Kernel and only Java Kernel?
Can we use the kernel for above both from the same location as below?
1#
Support Packages and Patches> Additional Components> SAP Kernel> SAP KERNEL 64-BIT UNICODE> SAP KERNEL 6.40 64-BIT UNICODE
Following Files
DB Dependent - ORACLE
          SAPEXEDB_175-20000227.SAR
          DBATL640O92_44-20000227.SAR
Database Independent
          SAPEXE_175-20000226.SAR
Assuming above SAR files contain R3trans, R3load, tp ,... also.
2#
As per my knowledge SAP has given one more path to download J2EE SP's which contains Kernel and J2EE Support Packages.
http://service.sap.com/patches --> Support Package and Patches -> Entry by Application Group -> SAP NetWeaver -> SAP NetWeaver -> SAP NetWeaver 04 -> Entry by Component -> Application Server Java -> SAP J2EE Engine 6.40 -> J2EERT19_0-10001982.SAR/J2EERT20_0-10001982.SAR (OS Independent) and CTRLDB219_0-20000114.SAR(OS Dendependent)
What is the difference between above two kernels?
1# contains R3trans, R3load, tp ...etc which is exclusively used by ABAP Stack related functions. The startsap script used here would check R3trans -d authentication successful before starting database and then only it starts the database from sidadm. I observed OPS$ users available in only ABAP schema SAPSID but not available in SAPSIDDB. If I use the kernel downloaded from 1# for Java Stack only system, startsap would fail as R3trans authentication fail as there is no ABAP schema in Java systems.
This applies well for ABAP+JAVA or only ABAP based systems.
If I use only JAVA Stack based system can I use the kernel downloaded from 1# . What is the kernel and SP available in 2#? Is this also contains the same kernel given in 1# or it is different. I also observed in JAVA they are not calling Kernels by Patch No like 154, 175... they call it by SP19. Please correct me if I am wrong.
Did anyone come accross this type if issue? I would appreciate if anyone can clarify my questions given above.
My main target is to have clear strategy for ABAP+JAVA, ABAP, JAVA kernels to avoid mess up. Which one to download? What is best practice? Differences?
Thanks and Regards
Prasad

Hi Sacha,
Thank a lot for your answer I am clear now. Before rewarding points to you.
I have final question.
You mean that there is not seperate kernel for Java Stack Systems.. When we apply SP11 or SP19 by default it applies Kernel and also support packages w.r.t the SP. Do we have option to seperate Kernel and Support package while applying SP's for Java System?
If we take for example SAP NW 2004 (WAS 640) latest kernel is 175 (I mean ABAP+JAVA). If I want to know the latest kernel for Java Stack system, Do I need to say it is at level SP19 or check the sapwebdisp -V (Resepctive patch level)?
For ABAP system we check disp+work -V to get the source kernel version. How to justify the source kernel version for Java System?
As per SAP Note: 710914 - Upgrading the J2EE Engine Startup Framework after applying SP for Java System, Do we need to upgrade J2EE Startup Framework?
Thanks and Regards,
Prasad

Passing value to a dynamic page from a pdk-java portlet

Hi everyone.
I'm quite new to portlets, so I'll try to present my problem as well as I can:
I have a PDK-java portlet in which I read some information (like name, location) about user.It works ok.Now I want to use that infomation in another portlet, which is build as a Dynamic Page ( with portletbuilder). How can I do this? I was thinck at session variables, but....
Thanks a lot

have you ever got any response??
i'm facing the same problem.
thanks

Java Portlets not able to read portlet.xml

while invoking java portlets context fails to read portlet.xml , any idea
I am having weblogic 8.1 sp2

Is the file valid (per the schema)? What kind of exception/error are you
getting?
Subbu
said the following on 02/25/2004 12:47 PM:
while invoking java portlets context fails to read portlet.xml , any idea
I am having weblogic 8.1 sp2

How to retrieve which user-agent in a java portlet?

Is there a way to get http user-agent info about which browser requested a page with a portlet from within the java portlet?
It seems like the request.getHeader() always returns the same value no matter what browser we use.
Have also tried portletRenderRequest.getOriginalHeader() but this method also returns the same result.
Does the PPE replace these headers or what..?
Regards,
Per A Jorgensen

Hi Per A Jorgensen,
I see what you mean. I just deployed a simple portlet which displays the user-agent header property.
Here are my observations:
1. If you access the page as user1 from Mozilla, I see the following:
Browser Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050511 RPT-HTTPClient/0.3-3 RPT-HTTPClient/0.3-3
2. If I now access this page from IE, as user1, then I still see my browser agent as:
Browser Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050511 RPT-HTTPClient/0.3-3 RPT-HTTPClient/0.3-3
3. If I now access this page from IE, as user2, then i see the following details:
Browser Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322) RPT-HTTPClient/0.3-3 RPT-HTTPClient/0.3-3
4. Now I access the same page from Mozilla (after logging out of user1) as user2, I see the following:
Browser Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322) RPT-HTTPClient/0.3-3 RPT-HTTPClient/0.3-3
Hmm.. interesting.. it looks like, whoever access the provider first, fixes the user-agent. I need to investigate more into it to find out information as to why this is happening.
In the mean-time, you can be rest assured that as long as you dont have multiple user's accessing the portlet as the same user, you will get the correct information.
thanks,
Harsha

Passing parameters to a java portlet from pl/sql proc

hi !
I try to build a link with a pl/sql procedure to a portal page which contains a java portlet. this link should pass a non qualified parameter to the page ... I try to get this parameter doing so : pr.getParameter("myparam") but nothing's work ...
Can someone help me??
thanks

not exactly what you wanted but ingredients can be found at
- JPublisher's docuemntation (especially "Type Mapping Support Through PL/SQL Conversion Functions")
- http://otn.oracle.com/sample_code/tech/java/jsp/Oracle9iJSPSamples.html (Best Hotels PL/SQL Sample )
- http://otn.oracle.com/tech/xml/xdk_sample/xdksample_093001i.html
hope this helps
Kuassi
I have a Java Stored procedure which takes an instance of a different java object as its parameter.
I need to do this from a pl/sql package - can anyone point me to a sample etc (looked on the website but don't see one) ?
Andrew

Payload Encryption SAP PO 7.4 Java stack only

Hi Folks,
I am trying to implement Payload encryption in SAP PO 7.4 Java stack only. I implemented the encryption as suggested by SAP as per the following links
Encrypted Message content on database level (AAE) :
Encrypting Message Content on Database Level (AAE) - Advanced Adapter Engine - SAP Library
and then configured Service interfaces for encrption:
Configuring Service Interfaces for Encryption - SAP NetWeaver Process Integration - SAP Library
But I am still seeing the payload in the message monitor. Is it because of the roles that I has been assigned to me. If so what are the roles that needs to be taken out from my profile to not see the payload?
Regards
Kalyan.

>>>Encrypted Message content on database level (AAE) :
This encrypts the message content at the database level not at the monitoring level.
If you would like to restrict the access to "view payload" for specific interfaces, then refer to below blog -
Michal's PI tips: Authorizations for viewing payload of messages on Java stack - implementation

Passing Parameters between Java Portlets

i hava java portlet and it does a search... the search result appears within the portlet region.... but i want to be able to click on the search button and take it to another portal page and have a portlet that contains the result of the porltet... how is that acheivable...

Well i've done this with java pdk portlets, but I guess the principle is the same everywhere.
Where are 2 types of parameters, qualified and unqualified ones. In your case you have to
use unqualified ones, so that your other portlet can read a parameter which is set by your search portlet.
Also add <passAllUrlParams>true</passAllUrlParams> to your provider.xml, inside a portlet tagof the result portlet, so yo are able to read unqualified params aswell.
Othee options are using sessions or a persistant datastore, eg database

Java Portlets only Java Derived?

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