Accessing Object Clusters From non-web applications

          Say I have a three-tiered WebLogic cluster (web proxy, servlet, EJB).
          I have an application that wants to access the EJBs directly from
          the object cluster via RMI or Corba.
          If I'm correct, the only load balancing/failover would be provided
          by DNS. So how are non-web applications able to enjoy the benefits
          of the cluster?
          I suppose you could send your EJB requests through a servlet??
          Is that the only way?
          Please share your ideas!
          Thanks,
          Dave

See http://www.weblogic.com/docs51/cluster/concepts.html#1024225
          David Mrozek <[email protected]> wrote:
          > Say I have a three-tiered WebLogic cluster (web proxy, servlet, EJB).
          > I have an application that wants to access the EJBs directly from
          > the object cluster via RMI or Corba.
          > If I'm correct, the only load balancing/failover would be provided
          > by DNS. So how are non-web applications able to enjoy the benefits
          > of the cluster?
          > I suppose you could send your EJB requests through a servlet??
          > Is that the only way?
          > Please share your ideas!
          > Thanks,
          > Dave
          Dimitri

Similar Messages

How to access an EJB from a web application deployed in the same server

Hey All,
I deployed an EJB named EventServerBean to Sun Application Server 9.0, and put the client side jar file (named eventserver.jar which is generated by Sun Application Server) to C:\Sun\AppServer\lib. Now, I have a web application which is a simple jave file -- lookup EventServer EJB and invoke a remote method in this EJB. However, the web application always throws an exception "java.lang.NoClassDefFoundError: eventserver/EventServerRemoteHome"
Here is my java class that access the ejb:
public class Post_Event {
    public HashMap<String, String> getEventInfo(String event_name, String site) {
        System.out.println("Post_Event, the class path: " + System.getProperty("java.class.path"));
        System.out.println("Post_Event, user.dir: " + System.getProperty("user.dir"));
        System.out.println("Post_Event, java.library.path: " + System.getProperty("java.library.path"));
        HashMap<String, String> result = null;
        EventServerRemote remote = null;
        StringTokenizer st, st2;
        // here get the event information from host
        try {
            String lookupStr = "corbaname:iiop:" + site + ":3700#ejb/EventServerBean";
            InitialContext initialContext = new InitialContext();
            EventServerRemoteHome remoteHome = (EventServerRemoteHome) javax.rmi.PortableRemoteObject.narrow(initialContext.lookup(lookupStr), EventServerRemoteHome.class);
            if (remoteHome != null) {
                remote = remoteHome.create();
        } catch (javax.naming.NamingException ne) {
            ne.printStackTrace();
            return null;
        } catch (javax.ejb.CreateException ce) {
            ce.printStackTrace();
            return null;
        } catch (java.rmi.RemoteException re) {
            re.printStackTrace();
            return null;
        } catch (java.io.IOException ioe) {
            ioe.printStackTrace();
            return null;
        System.out.println("look up remote event server successfully.");
     result = remote.getEvent(event_name);
        return result;
    } I output the class path in this java file, and the class path DOES include the path C:\Sun\AppServer\lib where eventserver\EventServerRemoteHome.class is.
Does anyone know why it happens? Why a java class can't find a class that is in its class path?
appreciate any help!

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Wael Abbas ([email protected]):
Thank you for your great topic.
I think you need to copy the snippet code and past it to every application, applet, servlet or JSP every time you need to use your EJB.
Its better to include this snippet code in a simple JavaBean and use this bean as a bridge to your EJB, you may include a connect method in your JavaBean or but the connection code in the constructor and include a setters, getters and other methods to encapsulate your EJB methods.
You can use your JavaBean in any application, applet, servlet or JSP just create an object form it and call its methods.
Its just an idea
I hope it will be useful.
<HR></BLOCKQUOTE>
null

Accessing a portlet from Non-portal Application

Hi,
Is there a way to access a portlet in a non-portal application using javascript. The non-portal application may be a PHP one.
Also, is it possible to send some parameters through javascript so that the portlet can use it and render different content.

If by domain you mean the accessed url (and not the weblogic domain) , then yes any ajax based solution needs the files to be located in the same domain (as the browser sees it).
If that isnt the case you
a. Either use some sort of frames
b. use a server side proxy
c. Other loading javascipt based techniques
Of this b. is the most common , because its pretty simple to do as most modern webservers directly allow you to reverse proxy to any site by simple configuration.
E.g. if you have PHP on apache as www.youweb.com and your weblogic runs on yourapp.com , you can create a rule on the apache which states that /xyz goes to weblogic (by using the weblogic plugin or mod_proxy). Once you do this , you are running on the same domain as the browser ses and ajax will work

How to access MDB database from JSP Web Application?

hi
i am using tomact and developing appplication in which i have to insert data into MDB database and read/Update/Delete Data in MDB DataBase.
could any help in this issue?
Thanks
Regards
Oersla Afroze Ahmed

Hi,
For accessing MDB database, you must have a jdbc:odbc driver, u can get it from sun site.
just put it into the lib folder of web server.
or
just follow the following link:
http://www.developer.com/db/article.php/3571661
keshri

Is it possible to access Pages from an web application running in Safari in i-Pad?

Is it possible to access Pages application from an web application running on safari browser in iPad ?

Since you control the application AND the plugin - you can define ANY method of communication you want. Shared files, shared memory, IPC, named pipes, etc.

How to update survey in Complaint from developed web application

Hello,
We've setup complaint management including the usage of surveys within a complaint document.
Complaint documents are accessed using the SAP GUI but will also be maintained using a newly developed application in the Enterprise Portal.
To access the survey using the external web application I need to know how to call the URL for the survey within a complaint transaction. I know how to setup the survey parameter xml but that allows me to call the survey irrespective of a transaction document. How do I call a URL that allows me to bring up a survey stored within a complaint document (is there for example a parameter I can pass to the URL indicating the GUID of the document the survey is in?
Thanks,
Patrick

I have used local ejbs in other application servers, WebSphere and JBoss, from discrete web applications running in the same VM as the ejbs. The requirement for local interfaces is that the ejb and client be running in the same VM. Maybe Weblogic is different in that respect, but I doubt it. Why marshal data through a Remote interface when both components are in the same VM?
I have gone through the Weblogic documentation and have not been able to find an answer to my question, which is why I posted the original question the way I did. Weblogic does not put the ejb in the jndi namespace, but the ejb can be acquired through jndi. In the Weblogic console deployments view I can see the bean deployed as CustomerBean, but there is no clue as to its jndi name. This forum is peppered with different schemes for accessing an ejb, but none of those has worked for me, hence the different names I tried.

IMAP/SSL: problem connecting from a web application

Hi,
I try to connect to a IMAP/SSL server (with a self-signed certificate) from a web application. I followed http://www.javaworld.com/javatips/jw-javatip115.html.
When I try to connect from a java application it works fine. But when I try it from a servlet, it fails:
javax.mail.MessagingException: gaeron.gcrm.test.mail.DummySSLSocketFactory;
nested exception is:
     java.net.SocketException: gaeron.gcrm.test.mail.DummySSLSocketFactory
     at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:461)
     at javax.mail.Service.connect(Service.java:236)I use Tomcat 5.5, jdk1.5.0_06 and javamail-1_3_3_01. Here is my code:
          Security.setProperty( "ssl.SocketFactory.provider", "gaeron.gcrm.test.mail.DummySSLSocketFactory");
Properties props = new Properties();
Session session = Session.getDefaultInstance(props);
Store store = session.getStore("imaps");
store.connect(server, 993, username, password);
store.close();Can anybody help me?
Thanks,
Előd.

I am not sure there is a class called MBoxSSLFactory. Is that a typo? We are in the same boat. We have a web application running on Tomcat that needs to connect to the IMAP store on the MS Exchange 2003 Server. It was working fine until we enabled Basic Authentication - SSL/TLS required setting on it.
In order to eliminate any complications due to Tomcat and all we are trying to get a simple standalone program that talks to IMAP server (using the DummySSLSocketFactory, DummyTrustManager etc) working.
I am stuck on the same error: (shown below is the stack trace and the code we are running). I have tried all the suggestions that have been posted on this "Unconnected Sockets not implemented" issue. I have tried it with both Jdk 1.4.2_08 and JDK 1.5.0.
The JavaMail version is 1.4. If I use JavaMail version 1.3.1 it complains that there is no store type "imaps". If I use "imap" and not "imaps" as the store type I end up getting "Authentication Failed" exception.
Instead of a DummyTrustManager I even tried importing a certificate. We have deployed a Verisign trial certificate on the EXchange server side. So when we run the InstallCert program (http://blogs.sun.com/andreas/entry/no_more_unable_to_find) it allows us to add the valid certificates to our keystore. Once that is done we have tried to create TrustManager based on that keystore. But NOPE..No success. same problem.
We have been stuck on this one for the last 4 days and we have a very critical client deployment that is hampered by this one. I know it is turkey time now..but would really appreciate it if some one can help us out.
javax.mail.MessagingException: Unconnected sockets not implemented;
nested exception is:
     java.net.SocketException: Unconnected sockets not implemented
     at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:479)
     at javax.mail.Service.connect(Service.java:297)
     at javax.mail.Service.connect(Service.java:156)
     at javax.mail.Service.connect(Service.java:105)
     at GetSSLMail.getmail.main(getmail.java:37)
Caused by: java.net.SocketException: Unconnected sockets not implemented
     at javax.net.SocketFactory.createSocket(SocketFactory.java:97)
     at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:224)
     at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:189)
     at com.sun.mail.iap.Protocol.<init>(Protocol.java:84)
     at com.sun.mail.imap.protocol.IMAPProtocol.<init>(IMAPProtocol.java:87)
     at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:446)
     ... 4 more
package GetSSLMail;
/* getmail.java */
import java.util.Properties;
import javax.mail.*;
//import javax.mail.internet.*;
import java.io.*;
public class getmail {
     //myauth auth;
     public static void main(String args[]) throws Exception {
          String host, name, passwd;
          BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
          System.out.println("Enter IMAP Host Name: ");
          host = br.readLine();
          System.out.println("Enter User name: ");
          name = br.readLine();
          System.out.println("Enter Password: ");
          passwd = br.readLine();
          java.security.Security.setProperty("ssl.SocketFactory.provider","DummySSLSocketFactory");
          // Get a Properties object
          Properties props = System.getProperties();
          props.put("mail.imaps.host", host);
          props.put("mail.imaps.port", "993");
          Authenticator auth = new myauth(name, passwd);
          Session session = Session.getDefaultInstance(props, auth);
          Store store = session.getStore("imaps");
          try {
               store.connect(); // exception here
               System.out.println("store connected");
          } catch (Exception e) {
               //System.out.println("Error :" + e.toString());
               e.printStackTrace();
          Folder folder = null;
          try {
               folder = store.getFolder("INBOX"); // because of earlier exception,
                                                            // also
               // exception here
          } catch (Exception e) {
               System.out.println("Error :" + e.toString());
          folder.open(Folder.READ_ONLY);
          BufferedReader reader = new BufferedReader(new InputStreamReader(
                    System.in));
          Message message[] = folder.getMessages();
          for (int i = 0, n = message.length; i < n; i++) {
               System.out.println(i + ": " + message.getFrom() + "\t"
                         + message[i].getSubject());
               System.out
                         .println("Do you want to read message? [yes to read/quit to end]");
               String line = reader.readLine();
               if ("yes".equals(line)) {
                    System.out.println(message[i].getContent());
               } else if ("QUIT".equals(line)) {
                    break;
     class myauth extends Authenticator {
          String username, password;
          public myauth(String name, String passwd) {
               username = name;
               password = passwd;
          public PasswordAuthentication getPasswordAuthentication() {
               return new PasswordAuthentication(username, password);
package GetSSLMail;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.InetAddress;
import java.net.Socket;
import java.security.KeyStore;
import javax.net.SocketFactory;
import javax.net.ssl.*;
* DummySSLSocketFactory
public class DummySSLSocketFactory extends SSLSocketFactory {
private SSLSocketFactory factory;
SSLContext sslcontext;
     TrustManagerFactory tmf;
     KeyStore ks;
public DummySSLSocketFactory() {
     try {
// try
          ks = KeyStore.getInstance("jks");
          InputStream in = new FileInputStream("C:\\Documents and Settings\\kk12\\jssecacerts");
          in = new BufferedInputStream(in);
          ks.load(in,null);
          tmf = TrustManagerFactory.getInstance("PKIX");
          tmf.init(ks);
          sslcontext = SSLContext.getInstance("SSL");
          sslcontext.init(null, tmf.getTrustManagers(), null);
          HttpsURLConnection.setDefaultSSLSocketFactory(sslcontext.getSocketFactory());
     //SSLContext sslcontext = SSLContext.getInstance("TLS");
     //sslcontext.init(null,new TrustManager[] { new DummyTrustManager()},null);
     factory = (SSLSocketFactory)sslcontext.getSocketFactory();
     } catch(Exception ex) {
     // ignore
public static SocketFactory getDefault() {
     return new DummySSLSocketFactory();
public Socket createSocket(Socket socket, String s, int i, boolean flag)
                    throws IOException {
     return factory.createSocket(socket, s, i, flag);
public Socket createSocket() throws IOException {
          System.out.println( "createSocket 0");
          return factory.createSocket();
public Socket createSocket(InetAddress inaddr, int i,
                    InetAddress inaddr1, int j) throws IOException {
     return factory.createSocket(inaddr, i, inaddr1, j);
public Socket createSocket(InetAddress inaddr, int i)
                    throws IOException {
     return factory.createSocket(inaddr, i);
public Socket createSocket(String s, int i, InetAddress inaddr, int j)
                    throws IOException {
     return factory.createSocket(s, i, inaddr, j);
public Socket createSocket(String s, int i) throws IOException {
     return factory.createSocket(s, i);
public String[] getDefaultCipherSuites() {
     return factory.getDefaultCipherSuites();
public String[] getSupportedCipherSuites() {
     return factory.getSupportedCipherSuites();
package GetSSLMail;
//import com.sun.net.ssl.X509TrustManager;
import java.security.cert.X509Certificate;
import javax.net.ssl.TrustManager;
public class DummyTrustManager implements TrustManager {
     public boolean isClientTrusted( X509Certificate[] cert) {
     return true;
     public boolean isServerTrusted( X509Certificate[] cert) {
     return true;
     public X509Certificate[] getAcceptedIssuers() {
     return new X509Certificate[ 0];

Call BW query from a Web application

Hi,
I am trying to call a BW query from a Web application. Could you please let me know how to pass the parameters to the query.
Thanks,
Rekha

I don't know about db2 APIS, but you can use JDBC to connect to DB2 physical files/tables with the DB2 driver. You would need the jar file with the driver info though. I've done this with the webshpere appserver.
import com.ibm.db2.jdbc.app.DB2Driver;
Class.forName("com.ibm.db2.jdbc.app.DB2Driver");
connectionVar = DriverManager.getConnection("jdbc:db2://SERVERNAME/LIBRARY", "user", "passwd");
That's the basic info that will get you connected and then you can access any files or tables that are in that library with SQL. You would have to use the Java API though - statements, resulsets etc. Hope it helps.

Capture an image using the web camera from a web application

Hi All,
Could anyone please share the steps what have to be followed for capture an image using the web camera from a web application.
I have a similar requirement like this,
1) Detect the Webcam on the users machine from the web application.(To be more clear when the user clicks on 'Add Photo' tool from the web application)
2) When the user confirms to save, save the Image in users machine at some temporary location with some unique file name.
3) Upload the Image to the server from the temporary location.
Please share the details like, what can be used and how it can be used etc...
Thanks,
Suman

1) Detect the Webcam on the users machine from the web application.(To be more clear when the user clicks on 'Add Photo' tool from the web application)There's not really any good way to do this with JMF. You'd have to somehow create a JMF web-start application that will install the native JMF binaries, and then kick off the capture device scanning code from the application, and then scan through the list of devices found to get the MediaLocator of the web cam.
2) When the user confirms to save, save the Image in users machine at some temporary location with some unique file name.You'd probably be displaying a "preview" window and then you'd just want to capture the image. There are a handful of ways you could capture the image, but it really depends on your situation.
3) Upload the Image to the server from the temporary location.You can find out how to do this on google.
All things told, this application is probably more suited to be a FMJ (Freedom for Media in Java) application than a JMF application. JMF relies on native code to capture from the web cams, whereas FMJ does not.
Alternately, you might want to look into Adobe Flex for this particular application.

Register non web application on SSO

how can i register non web application ? I have installed app server , oid and was able to sync with active directory. I need to integrate and have a single sign on for all my application . What will be the next step ?

Thanks Kiran for your prompt response. I dont have any web based application. I have some of the applications where backends are oracle and sybase. How can a provide a single sign on for the application. Once the user enters his user name or password. If he has the prvilege the use multiple apps he dont have to enter username and password for each application. I had syn with windows AD. I have oracle db on unix. I believe i have to sync with EM users for all oracle db. what about sybase ?? how can i have the single sign on . I have OID, IAS installed on a single windows server.
Yesterda when i restarted the server i got the following error. when i checked the opmnctl status
ias-component | process-type | pid | status
------------------------------------------------+---------
DSA | DSA | N/A | Down
LogLoader | logloaderd | N/A | Down
dcm-daemon | dcm-daemon | N/A | Down
OC4J | OC4J_SECURITY | N/A | Down
HTTP_Server | HTTP_Server | 2088 | Alive
OID | OID | N/A | Down
earlier oc4j_security and OID was alive now only http_server is alive
when i tried to start the process i get the following errors
E:\OraHome_1\opmn\bin>opmnctl startall
opmnctl: starting opmn and all managed processes...
================================================================================
opmn id=CV2K3TESTAPP02:6200
1 of 3 processes started.
ias-instance id=iasrep.cv2k3testapp02.corp.cvpsnet.net
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ias-component/process-type/process-set:
OC4J/OC4J_SECURITY/default_island
Error
--> Process (pid=0)
oid dependency failed
OID
failed to start a managed process because a dependency check failed
Log:
none
ias-component/process-type/process-set:
OID/OID/OID
Error
--> Process (pid=0)
database dependency failed
iasrep
failed to start a managed process because a dependency check failed
Log:
I would appreciate if anyone could help me

SSO from non-SAP application to EP system

Hi all,
Is it possible to configure the Single sign-on from non-SAP application to SAP Enterprise portal?
My requirement is
I have a link to "Enterprise Portal" in my company's website home page. If I click on the link, it should directs to EP portal with out asking for logon.
Please suggest, is it possible??
Regards,
Sujoy

Hi Sujoy,
SSO implementation to non-browser applications i.e non-SAP systems is possible in 3 ways which are listed .Can find useful info in the below links.
http://help.sap.com/saphelp_nw70/helpdata/EN/12/9f244183bb8639e10000000a1550b0/frameset.htm
among the non-browser applciation if it is an MS dotnet system then the below article will give a clear understanding of SSO implementation.
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/f05ae0f0-bf93-2b10-ed9e-a7320c012841
Regards
Supraja

How to call a report from a web application

Hi,
I have a web server in wich is installed Reports 6i. My question is how can I call reports 6i to generate a pdf using a .rep file from my web application (built with java)?

Hi,
The below link will be very useful for one who need idea on calling Oracle Report from Java Application,
http://www.oracle.com/technology/products/reports/htdocs/getstart/examples/reportswebservice/index.html
Thanks & Rgds,
M T

Copy a publishing page from one Web Application to another

can we copy a publishing page from one web application to another.
If we download a copy from pages library of one web application and upload it to another library of other Web application.
Once uploaded it came up with an error "This page is not using a valid page layout. To correct the problem, edit page settings and select a valid page layout.".

It seems like the page layout is missing in target location. Check similar thread below to solve the issue
http://social.msdn.microsoft.com/Forums/en-US/99c24657-0297-4a5c-8600-467bb6ea57d6/this-page-is-not-using-a-valid-page-layout-to-correct-the-problem-edit?forum=sharepointdevelopmentprevious
shipoint.com/2014/03/28/fixing-this-page-is-not-using-a-valid-page-layout-to-correct-the-problem-edit-page-settings-and-select-a-valid-page-layout-error-in-sharepoint-2010/
My Blog- http://www.sharepoint-journey.com|
If a post answers your question, please click Mark As Answer on that post and Vote as Helpful

Opening a PPT file from a Web Application

Hi,
I want to open a PPT file from my web application.
I have provided an hyperlink of the complete path of the file. Once the user clicks on this hyperlink the PPT shall open.
Kindly help me out with this.
Thanks.

Sounds like you're done. What happens when the user clicks the link?

Webservice call to XI Interface through SOAP Adapter from a Web application

I am getting the following error, when I try to call the XI Interface using soap adapter from a web application.
ERROR :
SystemError:
          <context>XIAdapter</context>
          <code>ADAPTER.JAVA_EXCEPTION</code>
          <text><![CDATA[
com.sap.aii.af.ra.ms.api.DeliveryException: XIAdapterFramework:GENERAL:com.sap.aii.af.ra.ms.api.DeliveryException
at some time i am getting the following error.
faultCode: HTTP
faultSubcode:
faultString: (500)Internal Server Error
faultActor:
faultNode:
faultDetail:
     {}:return code: 500
<SAP:Error><SAP:Category>XIServer</SAP:Category><SAP:Code>RCVR_DETERMINATION.NO_RECEIVER_CASE_BE</SAP:Code><SAP:Stack>No receiver could be determined</SAP:Stack></SAP:Error>
     HttpErrorCode:500
(500)Internal Server Error
can any of one help to resolve this.
Thanks in advance

Ganie
You are getting the exception at very first point of Pipeline Service i.e Receiver Determination, do compare the namespace, Sender Interface Name & Sender Service name with the payload you are sending from web-application, they must be exactly same.
The best way to get the test payload is suggested in above reply.

Accessing Object Clusters From non-web applications

Similar Messages

Maybe you are looking for