Getting hostname from inside Java code...

What is the easiest method to determine the hostname of the machine my appication is running on? Any code bits would be helpful.

Couldn't you use something like:
String host = getClass().getClassLoader().getResource(getClass() + ".class").getHost();
With applets you can just call getCodeBase() and do stuff with that, but I think the above might work regardless of whether the object is an applet or not.

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How to run exe file from inside java

I wan to run an exe file from inside java code. How can I do it?
Thanks

Hi Oakam
This is very simple. Just go through the given code below
in place of FILEANDPATHNAME just give the exe's path and name
Note :- adding ".exe " is not necessary
public class exep
public static void main(String args[])
Runtime r = Runtime.getRuntime();
Process p = null;
try{
p = r.exec("FILEANDPATHNAME");
catch(Exception e)
Give ur feedback
Thanx
Ottran

How to get the Weblogic Server Id from within java code

I would like to log which server (among a cluster) a certain job is running on. Is there a way to get the server id from within Java code (this code is in a session bean if that is relevant.)
By server id I mean the "Name" column in the summary of servers on the weblogic console.
Thanks,
ken

Use the two entries close to the bottom of the page: "list WebLogic
MBeans:listMBeans.jsp
display MBean attributes and operations:showMBean.jsp"
Nils
Anatoly wrote:
>
Cameron,
That page has these items on it:
which one do you think helps with my issue?
Misc WebLogic examples
LongRunningTask
Execute tasks in parallel using WebLogic Execute Threads
Weblogic stats (5.1)
Reload Servlet(s) programmatically (5.1)
Network classload from WebLogic:using reflection,or the launcher
Weblogic 5.1 debugging properties
Seppuku pattern readme
Using dynamic proxies to intercept EJB invocations (6.1)
list WebLogic MBeans:listMBeans.jsp
display MBean attributes and operations:showMBean
Thanks to Marcelo Caldas for filter by type option and nice UI!
Using com.sun.jdmk.comm.HtmlAdaptorServer with WebLogic 6.1
Cool
EJBGen
Dimitri
back
"Cameron Purdy" <[email protected]> wrote in message news:<3c7a745d$[email protected]>...
JMX ... see http://dima.dhs.org/misc/ for some info on JMX in Weblogic.
Peace,
Cameron Purdy
Tangosol, Inc.
Clustering Weblogic? You're either using Coherence, or you should be!
Download a Tangosol Coherence eval today at http://www.tangosol.com/
"Anatoly" <[email protected]> wrote in message
news:[email protected]..
Does anyone know who to get the managing server URL's port
from within the EJB code running on Weblogic 6.1?
The URL port is not default (not 7001), but when creating
initial context, I am not specifying the URL in properties.
Due to that, trying to the the PROVIDER_URL property from
environment does not return anything.
Appreciate any responses.
-Anatoly
============================
[email protected]

Execute PL/SQL block with named binds from within java code?

Hi guys,
Is there any good way to execute my PL/SQL code, for example
BEGIN         :x := :x+1; END;
from my Java code? I need nothing complicated, just static code block with named binds.
I have tried the Oracle exetnded JDBC (setXXXbyName methods):
public static void main(String[] args){     try {     Class.forName("oracle.jdbc.driver.OracleConnection");     Connection conn=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","user","password"); String SQL="begin :x:=:x+1; end;"; OracleCallableStatement stmt; stmt=(OracleCallableStatement)conn.prepareCall(SQL); stmt.setIntAtName("x", 5); stmt.registerOutParameter("x", Types.INTEGER); stmt.execute(); System.out.println(stmt.getInt("x"));     } catch (Exception x) { x.printStackTrace();    }   }
And get the java.sql.SQLException: operation not allowed: Ordinal binding and Named binding cannot be combined!
Then i've tried SQLJ appoach:
public static void main(String[] args){     try {     Class.forName("oracle.jdbc.driver.OracleConnection");     Connection conn=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","user","password");       Oracle.connect(conn);       System.out.println("Connected!");           int x=3;       #sql { BEGIN         :x := :x+1;       END; };           System.out.println("x=" + x);     } catch (Exception x) { x.printStackTrace();    }   }
And x=3 had retuned... Although 4 expected.
Then, I've set parameter sqlj.bind-by-identifier=true
And result is another exception! java.sql.SQLException: Missing IN or OUT parameter at index:: 2
Can you please mark my mistakes/point to correct solution?
Thanks in advance,
Alexey

Found another solution, this time working at least...
public void testPLSQL() {
       String dynamicSQL=
            "declare\n" +
            " v_CursorID INTEGER;\n" +
            " v_BlockStr VARCHAR2(500);\n" +
            " v_Dummy     INTEGER;\n" +
            " v_x         String(18);\n" +
            "BEGIN\n" +
            " v_CursorID := DBMS_SQL.OPEN_CURSOR;\n" +
            " v_BlockStr :=?;" +
            " DBMS_SQL.PARSE(v_CursorID, v_BlockStr, DBMS_SQL.V7);\n" +
            " v_x:=?;"+
            " DBMS_SQL.BIND_VARIABLE(v_CursorID, ':x', v_x,18);\n" +
            " v_Dummy := DBMS_SQL.EXECUTE(v_CursorID);\n" +
            " DBMS_SQL.VARIABLE_VALUE(v_CursorID, ':x', v_x);\n" +
            " DBMS_SQL.CLOSE_CURSOR(v_CursorID);\n" +
            " ?:=v_x;"+
            " COMMIT;\n" +
            "EXCEPTION\n" +
            " WHEN OTHERS THEN\n" +
            "    DBMS_SQL.CLOSE_CURSOR(v_CursorID);\n" +
            "    RAISE;\n" +
            "END DynamicPLSQL;";
       try {
               Class.forName("oracle.jdbc.driver.OracleConnection");
               Connection conn=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","user", "password");
               System.out.println("Profit");
     String SQL="begin :x:=:x+1; end;";
     OracleCallableStatement stmt;
     stmt=(OracleCallableStatement)conn.prepareCall(dynamicSQL);
     stmt.setString(1, SQL);
     int x=3;
     stmt.setInt(2, x);
     stmt.registerOutParameter(3,     Types.INTEGER);
     stmt.execute();
     x=stmt.getInt(3);
     System.out.println(x);
     assertEquals(4, x);
       } catch (Exception ex) {
            ex.printStackTrace();
            assertTrue(false);
}Now the only thing I need is to code some kind of preprocessor of SQL block, to prepare the dynamicSQL lair for SQL critter...
Please please please show me something less complicated! :8}

How to call IAC Iview from WebDynpro java code

Hi Team,
I am tring to call IAC Iview from WebDynpro Java code. we are passing value but blank page displayed and there is no error show on error log.
Below is Java Code which i am calling.
public void wdDoInit()
      try {
            String strURL = "portal_content/TestSRM/iView/TestSRM";                           //WDProtocolAdapter.getProtocolAdapter().getRequestParameter("application");
             String random = WDProtocolAdapter.getProtocolAdapter().getRequestObject().getParameter("random_code");
             //wdContext.currentContextElement().setRandomNumber(random);
//below we are call URL
WDPortalNavigation.navigateAbsolute("ROLES://portal_content/TestSRM/iView/TestSRM?VAL="+random,WDPortalNavigationMode.SHOW_INPLACE,(String)null, (String)null,
                   WDPortalNavigationHistoryMode.NO_DUPLICATIONS,(String)null,(String)null, " ");
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
I am passing value from URL.
http://<host Name>:<port>/webdynpro/resources/local/staruser/StarUser?random_code=111111111
when we call above URL we getting blank screen.
Regards
Pankaj Kamble

Hi Vinod,
read this document (from pages 7 ).
<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/b5380089-0c01-0010-22ae-bd9fa40ddc62">https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/b5380089-0c01-0010-22ae-bd9fa40ddc62</a>
In addition lok at these links: (Navigation Between Web Dynpro Applications in the Portal)
<a href="http://help.sap.com/saphelp_erp2005/helpdata/en/ae/36d93f130f9115e10000000a155106/frameset.htm">http://help.sap.com/saphelp_erp2005/helpdata/en/ae/36d93f130f9115e10000000a155106/frameset.htm</a>
<a href="http://help.sap.com/saphelp_erp2004/helpdata/en/b5/424f9c88970f48ba918ad68af9a656/frameset.htm">http://help.sap.com/saphelp_erp2004/helpdata/en/b5/424f9c88970f48ba918ad68af9a656/frameset.htm</a>
It may be helpful for you.
Best regards,
Gianluca Barile

Execute Javascript from our JAVA code

Hi all,
I have a question:
It's possible to execute a javascript code from the back bean page. For example , we execute a button action (Conect to a db, insert data) and if all it's ok we execute a simple alert ("The insert is ok!!");
Any way to do this??
Thx!

I don't know enough about Javascript, but I don't think it can be executed from within Java code.
If you can't, an alternative is to provide a status code and/or status message that is accessible to the page. There are a number of ways to do this. One option is to put the information in a hidden field. Another option is to put the information in a session bean and add appropriate JSP code to your page to get that information.
You can link a Javascript function to the page's onLoad event. The function can get the status code/status message and create the alert.

How to get hostname from targetlist in custom deployment procedure?

When I make a simple procedure with a phase that will loop through a procedure hostname list
and a hostcmd or directive inside that will use the hostname ex change a configuration file. How to get hostname from the hostname targetlist?
I would rather not use $(hostname) or similar function if I can get the hostname from the target list.
Edited by: user476601 on 2012-09-06 05:59

I have tried that and cannot get it to work.
I have tried to make a procedure with:
parameter
- parallel fase
- step directive with hostname parm based on simple sh script (echo $hostname)
- map hostname setvalue %TargetName%
In a hostcmd step you cannot access %TargetName% directly
it doesn't work. Please come with an example if you have tried it.
/René

[Best practice] How to call a service from custom Java code

Hi all,
I'm wondering what the best method is to call a standard service from custom Java code?
In a specific situation iDoc script is extended with custom functions with a custom component. There's Java code mapping to these functions that is executing these functions. The iDoc script functions are called from a workflow entry script.
In the Java code that runs when the custom iDoc functions are called, I want to call a standard Content Server service. I don't think that the m_service variable is available, so filling the binder and using m_service.executeService() probably isn't possible.
Also, if it were possible (that is, if I want to call a standard service from my own custom service Java code), what would then be the best method to do so?
Regards, Stijn

Hi Sapan,
Let me explain a bit further.
I'm an UCM consultant trying to solve a problem that occured at a client when they installed the CS10gR35CoreUpdateBundle.
Content items are entered into a Workflow when they are checked in. Part of one of the entry scripts of the a workflow step is that related content to the content item in the workflow is (re)submitted for conversion.
To achive this, a custom component provides an iDoc script extension. This iDoc function (resubmitForConversion) is implemented in Java (the class extends ScriptExtensionsAdaptor).
In this Java method, first the related content items are fetched. Then the service RESUBMIT_FOR_CONVERSION should be called for all dID's in of the related content.
Thus, at a certain point in the custom Java code, a native Content Server service must be called. Of course the class of this Java code does not extend the Service class, so the m_service object isn't available.
The thing is: before installed the 10gR35CoreUpdateBundle everything worked OK. This code was used to execute the service:
        Workspace workspace = CommonUtils.getSystemWorkspace();
        String cmd = binder.getLocal("IdcService");
        if (cmd == null) throw new DataException("!csIdcServiceMissing");
        ServiceData serviceData = ServiceManager.getFullService(cmd);
        if (serviceData == null) throw new DataException(LocaleUtils.encodeMessage("!csNoServiceDefined", null, cmd));
        Service service = ServiceManager.createService(serviceData.m_classID, workspace, null, binder, serviceData);
        UserData fullUserData = CommonUtils.getFullUserData(userName, service);
        service.setUserData(fullUserData);
        binder.m_environment.put("REMOTE_USER", userName);
        ServiceException error = null;
        try {
            service.setSendFlags(true, true);
            service.initDelegatedObjects();
            service.globalSecurityCheck();
            service.preActions();
            service.doActions();
            service.postActions();
            service.updateSubjectInformation(true);
            service.updateTopicInformation(binder);
        } catch (ServiceException e) {
            error = e;
        } finally {
            service.cleanUp(true);
            if (!CommonUtils.isWorkspaceConnectionInTransaction(workspace)) {
                 workspace.releaseConnection();
        }the first problem was that the CS began to complain that a transaction was started within another transaction. So I suspect that the 10gR35 update wrapped a transaction around a workflow script entry.
With some decompiling I figured out how a service is called from iDoc with the <$executeService()$> command. So I replaced the code above with:
              String cmd = binder.getLocal("IdcService");
            ServiceData serviceData = ServiceManager.getFullService(cmd);
            if (serviceData == null) throw new DataException(LocaleUtils.encodeMessage("!csNoServiceDefined", null, cmd));
            Workspace workspace = CommonUtils.getSystemWorkspace();
            Service service = ServiceManager.createService(serviceData.m_classID, workspace, null, binder, serviceData);
            UserData fullUserData = CommonUtils.getFullUserData(userName, service);
            service.setUserData(fullUserData);
            binder.m_environment.put("REMOTE_USER", userName);
            service.initDelegatedObjects();
            service.executeSafeServiceInNewContext(cmd, true);This solved the transaction problem but introduces another problem: !csUnableToResubmitItem,(null)!csIllegalScriptAccess,RESUBMIT_FOR_CONVERSION
The Service Reference Guide says that the access level for RESUBMIT_FOR_CONVERION is 33 (Read, Scriptable). However, in shared/config/resources/std_services.htm the access level is specified as 2 (write).
Thus, my question still is:
What is the best method to call a standard Content Server service from any Java code (so without extending the Service class, or having the m_service object available)?

How to register a dll from the java code

Hi,
We can use windows utility Regsv32.exe to register a the components. Is it possible to register the Dll from the java code. If possible please try to provide me the code for the registring the dll.
Thanks in adavance
Aswad

if a try this variant it doesnt work
static {
System.loadLibrary("shellExec.dll");
but in this way it work (without .dll extension)
static {
System.loadLibrary("shellExec");
}

Runnig DOS commands from the java code?

Hi reader,
how can I execute DOS commands (I am on an Windows XP Machine) from my java code and also capture the output?
I think the
runtime.exec(command)
only executes win32 processes.
Please suggest
TIA
Ayusman

Again, this link should tell you most of what you need to know:
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html
You're not limited to the Win32 platform unless you're using specific DOS commands. Perhaps if you're just after file system information then some of the classes in the java.io package can help.
If it's not enough, perhaps a resource bundle or something similar can provide you with the names of the external programs you need to run, i.e. "dir" for win and "ls" for *nix.

How do I pass an error status from my java code back to the Program Job Ser

How do I pass an error status from my java code back to the Program Job Server?
I have a jar program object that reports a scheduled status of "Success" even if the java code errors out.

Exceptions thrown from the program object are ignored by the program job server.
You need to configure the Program Object, then stream out a special string sequence to the stdout of the Program Object, to set the scheduled instance status to Failed.
Look up SAP KBase 1201804 - How to programmatically set the status of a Program object to "Failed"
Sincerely,
Ted Ueda

Execute jar from my java code

Hi,
My CDC application run in Windows Mobile, with Creme JVM.
I need from my java code, run other .jar. and later, finish may application atual.
I try like this:
Runtime.getRuntime().exec("\\Windows\\CrEme\\bin\\CrEme.exe -jar \\Windows\\sample\\cube.jar");
System.exit(0);
But my second jar its not started. Anybody can help me?
Other question, If I getRuntime(), am I using the atual instance of my JVM. If I exec other JAR, and later exit() my atual, the second jar its exit too?
I'm building a automatic upgrade module in my application. With Hessian (Web Service), I download my new jar. But, I need have other jar, start it and close my jar atual. My second jar showld be delete my atual, rename the new jar downloaded for the standard name, and later start the jar download, how new version.
thanks,
Fabio
Edited by: FabioPinheiro on Mar 28, 2008 4:41 AM

Hi all,
The Mr. Rene (from NSIcom) answer my question
Just
Add flag -mi.
(multiple instance)
I try and work fine.
thanks Rene..
Fabio

Do quires from my java code

i am supposed to work on a project that dos query from my java code on one of the web medical sites,but I dont how to start on this ,if any one could help me with an exmple or link??

hi,
thank you for responding on my email , I went to the website you recommended ,but it gave me list of projects ,I dont know what to choose , please be advised I am just A biggennner and I have to do ap roject, that uses any language either java or c++ to do an automatic search from a certain website and retrieve the recordes to process ,
I dont know which easier to work with c++ or java ,and how to do theat qurey search,
i will be more than grateful if you advice and perhaps lead me to an example on this
all the best.

Pls Help:Running a C executable from my Java Code

I am trying to run a C/C++ executable a.out from my Java code but its not working pls help me out...Its very very important
I am writing a segment of the code pls point out if i am making any mistakes
         public void itemStateChanged(ItemEvent a)
          int i=c1.getSelectedIndex();
          Runtime r=Runtime.getRuntime();
          try
               if(i==0);
               if(i==1);
               if(i==2);
               if(i==3)
                    r.exec("./prog/a.out");
                    System.exit(0);
          }catch(Exception e){}
     }I am working in UNIX enviornment

Before any other attempt read: [url http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html]When Runtime.exec() won't.

ORACLE_HOME from inside java

Does any one know hoe to acess the oracle home env variable from inside java.
Sunil.

You cannot, your best bet is to set a system property i.e.
java -Doracle.home=$ORACLE_HOME myclass

Getting hostname from inside Java code...

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