Configuring Windows Scheduler from Java Class

Hi Frnds ,
Is it possible to configure or create a task in Windows Scheduler from a Java program .
If so ,please let me know how we can do so .
Thanks ,
Rajesh Reddy

Without claimimng any hands-on experience with this, google for "windows scheduler command line".
You will see lots of information from Microsoft about command line utilities that manage the scheduler.
If those utilities are able to do what you need, calling them from Java is just a matter of using the
Runtime or, better, ProcessBuilder classes (Runtime.exec() or ProcessBuilder.start()).

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Start and Stop a Windows Service From Java

Is there any way to start and stop a Windows service from Java? The only post I found on it (http://forum.java.sun.com/thread.jspa?threadID=647509) had a link to one of the many aps that allow Java programs to be services, which is not what I am interested in doing.
I am attempting to get data from performance counters from the Windows Performance Monitor into a Java ap without using JNI. I can get the data from C++ or a .net language pretty easily and was going to create a service that would listen for socket requests and feed back the data. However, I'd like to start and stop that service when my java code starts and stops. Is this possible? Would it make more sense to just use a .exe and Runtime.exec()?

If it's only to start or stop a service then you could use the net command without any need for JNI.import java.io.*;
public class MsWinSvc {
    static final String CMD_START = "cmd /c net start \"";
    static final String CMD_STOP = "cmd /c net stop \"";
    public static int startService(String serviceName) throws Exception {
        return execCmd(CMD_START + serviceName + "\"");
    public static int stopService(String serviceName) throws Exception {
        return execCmd(CMD_STOP + serviceName + "\"");
    static int execCmd(String cmdLine) throws Exception {
        Process process = Runtime.getRuntime().exec(cmdLine);
        StreamPumper outPumper = new StreamPumper(process.getInputStream(), System.out);
        StreamPumper errPumper = new StreamPumper(process.getErrorStream(), System.err);
        outPumper.start();
        errPumper.start();
        process.waitFor();
        outPumper.join();
        errPumper.join();
        return process.exitValue();
    static class StreamPumper extends Thread {
        private InputStream is;
        private PrintStream os;
        public StreamPumper(InputStream is, PrintStream os) {
            this.is = is;
            this.os = os;
        public void run() {
            try {
                BufferedReader br = new BufferedReader(new InputStreamReader(is));
                String line;
                while ((line = br.readLine()) != null)
                    os.println(line);
            catch (Exception e) {
                e.printStackTrace();
}Regards

Controling windows volume from java

Hi! Firstable, sorry for my English.
My question is very simple
How can I control windows' volume from java?
I've searched everywhere, but I found nothing.
JMF did not help me, I just could control a line, but I want to control the master volume of my pc.
Thanks in advance...

If you can identify a Windows command that does what you want, then you can execute it using Java's ProcessBuilder class nethods. If not, you can use Java Native Interface (JNI) or one of its variations to create an interface from Java to C/C++ code in Windows.

Parse errors while creating a Web service from Java class!

Can anybody tell me please, is it possible to create a Web Service from java class where the input from user is required ?
I have the following program, which is successfully compiled, but when I'm trying to make a web service in JDeveloper, the following error occurs:
"Validation failed.
The implementation class primePackage.isPrime ofport type MyWebService contains parse errors."
import java.io.*;
import java.util.*;
class isPrime
public static void main (String args[])
Scanner reader = new Scanner(System.in);
int n;
System.out.println ("Enter a number you want to know is it prime or not");
n=reader.nextInt();
if (isPrime(n))
System.out.println ("True");
else
System.out.println ("False");
static boolean isPrime (int n)
int i=2;
while (i<=n-1)
if (n%i==0)
return false;
i++;
return true;
}

Hi,
Can anybody tell me please, is it possible to create
a Web Service from java class where the input from
user is required ?Yes, the parameters of your method will be mapped in WSDL.
But i've some considerations about your code.
I suggest you change the name of isPrime do Prime, its a good code convention to put the name of class starting with Upper case. and isn't good the name of class equals to name of method.
I suggest you to change the "static boolean isPrime (int n)" to "public boolean isPrime(int n)" to publish a method as a WebService method it's must be public and not static. After this change try to generate your Web Service.
Regards.

WEB SERVICE FROM JAVA CLASS

Hi,
I'm new to BPEL and I've a problem: i need to create a WEBSERVICE from Java class.
This Java class contain functions to call other functions in other packages.
These last function contain sql query: it's an java "interface" application between BPEL and an EXTERNAL Oracle database 10g.
I want to create one WEB SERVICE from this application and i followed the steps (right click, menù, create j2ee webservice, etc) i obtain error:
VALIDATION FAILED --- Files at the following URLs cannot be modified:
File:/C:/OraBPELPM1/integration/jdev/jdev/mywork/RichiesteWebService/ARRICH/app/src/controller/MyWebService1.webservice
File:/C:/OraBPELPM1/integration/jdev/jdev/mywork/RichiesteWebService/ARRICH/app/src/controller/IMyWebService.wsdl
File:/C:/OraBPELPM1/integration/jdev/jdev/mywork/RichiesteWebService/ARRICH/app/src/controller/MyWebService1.dd
Show the java class "interface":
package controller;
import java.util.*;
import java.sql.*;
import domain.*;
import dao.*;
import utility.*;
public class Request_Incoming_Controller {
public Request_Incoming_Controller() {}
/* Update StatoTurismo */
public static String aggiornaStTurismo(int numIncoming, String tur) {
GregorianCalendar dp = FormatoData.dataDaDate1("00/00/0000");
Request_Incoming ric = new Request_Incoming(numIncoming,"","",dp,dp,"","","",0,"",tur,"");
// try {
if(ric.aggiornaTurismo()<0)return "NO";
return "OK";
// } catch (SQLException ex) {
// System.err.println("Eccezione durante l'aggiornamento "
// + ex.getMessage()); }
/* Update StatoCassa */
public static String aggiornaStCassa(int numIncoming,String cash) {
GregorianCalendar dp = FormatoData.dataDaDate1("00/00/0000");
Request_Incoming ric = new Request_Incoming(numIncoming,"","",dp,dp,"","","",0,"","",cash);
// try {
if(ric.aggiornaCassa()<0) return "NO";
return "OK";
// } catch (SQLException ex) {
// System.err.println("Eccezione durante l'aggiornamento "
// + ex.getMessage()); }
/* Lettura del NumIncoming assegnato dal sistema dopo il caricamento della
* richiesta in base alla matricola del Dipendente
public static int caricaNumDaDip(String dipendente){
Request_Incoming ric = new Request_Incoming(0,dipendente);
// try {
ric.trovaNumIncoming();
return ric.getNumIncoming();
// } catch (SQLException ex) {
// System.err.println("Eccezione durante l'aggiornamento "
// + ex.getMessage()); }
Can Anyone help?
Is urgently.........thanks
Daniele

You should try to post it there:
http://forums.oracle.com/forums/forum.jspa?forumID=97
But if I look at the error, it looks like some files are Read-Only. Maybe you should check if they are or if you have the appropriate rights on the folder.
Good luck

Web Service From Java class, serialization problem

Hi,
I want to create Web Service from Java class, I made java project, generated web service from it, create web service archive project and deployed it to WAS 6.40.
My class have 2 methods,
public int add(int a, int b);
public MyResponse doSomthing(MyRequest req);
I can succesfully call add method from Web Service Navigator, it works fine but when I call doSomthing methods I get the following error:
<b>
Deserializing fails. Nested message: XML Deserialization Error. Result class [com.mycomp.sap_tech.ws.MyRequest] does not have property [Amount] of type [java.lang.String]. It is required to load XML..
</b>
Any ideas how to resolve it?
P.S. MyRequest class is exposed throw VI, has default constractor and public getters and setters for all properties. It implements Serializable as well. Any guesses?
Thanks in advance,
Victor.

Hi Bhavik, thanks for response.
as I already mentioned it implements Serializable, so it is not the problem.
Thanks Avi but it didn't helps iether
Victor

How to set classpath from java class ??

I have tried to use System.setProperty("java.class.path", "my class path string ") to set classpath dynamically. But it is not working. How to set it dynamically from java class ?? Thanks , gary

Look into the java.net.URLClassLoader. You can't set the classpath after the fact but you can specify URL's that will checked when you try to load a class with that loader.

Calling Servlet from Java Class in eclipse

Hi ,
I am calling a Servlet from JAVA Class as I am using IDE: Eclipse. The Problem is below
URL url = new URL(ServletPath);
URLConnection connet = url.openConnection();
I am using the above code in JAVA to Connect to Servlet I have given Print statement in Servlet such that whenever it calls it prints on Console but when I try to run the code the Statement is not printed in the Console of eclipse I think URL connection is not able to establish any connection ..... if any has solution for this please reply
Thanks & Regards,
Arvind

I am calling a Servlet from JAVA Class as I am using IDE: Eclipse. The Problem is below
URL url = new URL(ServletPath);
URLConnection connet = url.openConnection();Why should the Servlet running in different Runtime print on your Eclipse Runtime. Please be more clear about the question.

JCX access from java class

Is it possible to access jcx from java class ?
from jpf i am calling java class which inturn calls jcx and
i am getting nullpointer exception at jcx call in java class
waiting for solution...
thanks,
sridhar

Shrishar,
Unfortunately in the current release controls cannot be accessed from stand
alone java classes. You can create a custom control which can invoke the jcx
and be invoked from within the jpf.
Regards,
Raj Alagumalai
Backline Workshop Support
"sridhar" <[email protected]> wrote in message
news:4083d449$[email protected]..
>
Is it possible to access jcx from java class ?
from jpf i am calling java class which inturn calls jcx and
i am getting nullpointer exception at jcx call in java class
waiting for solution...
thanks,
sridhar

Calling OAM WLST Commands from java class

Hi all,
is there any idea how to call OAM related WLST commands from java class ?.
what are the required jar files ?
thanks

Hi,
As per my understanding in OAM you will have only two major .py file startscript.py and stopscript.py file which will start nodemanger connect and start Admin and managed server similarly in stop it will stop managed server Admin server and then last nodemanager.
these all done through wlst command using nmConnect(), nmStart (), nmKill() and shutdown etc.
What exactly you are looking to get from java code.
Regards,
kal

AR60RUN from Java class

Can we run a oracle report 6i from java class ? Is there a JAVA API available for this ? I tried using "ar60run" thro getRuntime().exec java API, but its giving a core dump.. any suggestions ?

You don't need to extend from Frame if you're creating an Applet. The Applet Class is a Container so you can anything you can add to a Frame to an Applet. With an Applet you must call either init(), start() or paint(Graphics g). There is a really good description of how to create your first Applet in the Java Tutorial. It also give a demo of how to set up a web page to contain your applet and how to use the appletviewer.
http://java.sun.com/docs/books/tutorial/getStarted/applet/index.html
Basically what you need to do is:
import java.applet.Applet;
import java.awt.*;
public class MyApplet extends Applet {
public void init() {
setSize(500,500);
// Add Components, Listeners, etc...
Button b = new Button("MyButton");
add(b);

How can i open the popup from java class

Hi,
Please tell me how can i open the popup from java class.
I am using jdev 11.1.1.7.0
I have used the below code which works fine in jdev 2.1 but it will have some errors in 11.1.1.7.0.
Please tell me some way to do this in all jdev versions.
Bean obj = (Bean)RequestContext.getCurrentInstance.getExternalContext.getPageFlowScope(“obj”);
Code for hide pop-up
FacesContext context = FacesContext.getCurrentInstance();
String popupId = obj.getPopUpBind().getClientId()
ExtendedRenderKitService service = Service.getRenderKitService(FacesContext.getCurrentInstance(),
ExtendedRenderKitService.class);
String hidePopup = "var popupObj=AdfPage.PAGE.findComponent('" + popupId +
"'); popupObj.hide();";
service.addScript(FacesContext.getCurrentInstance(), hidePopup);
Code to Show pop-up
StringBuffer showPopup = new StringBuffer();
showPopup.append("var hints = new Object();");
showPopup.append("var popupObj=AdfPage.PAGE.findComponent('" +
obj.getPopUpBind().getClientId() + "');popupObj.show(hints);");
service.addScript(FacesContext.getCurrentInstance(), showPopup.toString());
Code need to be added in jsff pop tag
binding="#{pageFlowScope.bean.popUpBind}
Variable need to be added in Bean.java
private RichPopup popUpBind;

Hari,
Since you're using a non-public build of JDeveloper, you should be using a non-public forum.
John

How To Change Resource Bundle file's data from Java Class

Hi
i have used below code for accessing Resource Bndle from Java Class but here i also want to make change in a particular key and its value.
please let me know the code i should use to make changes in Resource Bundle file's key and value and saving the same in the file.
package test; import java.util.Enumeration;
import java.util.ResourceBundle;
public class ResourceBundleTest {
public static void main(String[] args) {
ResourceBundle rb = ResourceBundle.getBundle("test.bundletest.mybundle");
Enumeration <String> keys = rb.getKeys();
while (keys.hasMoreElements()) {
String key = keys.nextElement();
String value = rb.getString(key);
System.out.println(key + ": " + value);
Thanks

With further debugging, I noticed the following line only works in integrated WLS but not in standalone WLS
resourceBundle = ResourceBundle.getBundle("com.myapp.MyMappings");
I confirmed the corresponding properties file was included properly in the EAR file but the standalone WLS failed to find the properties file at runtime.
Why did the standalone WLS class loader (must be the same as the integrated WLS) failed to find the properties file deployed under the WEB-INF/classes path in the EAR file?
The above line was in a POJO class which has the same classpath as the properties file ie. com.myapp.MappingManager.class.
It was strange that the class loader could load the POJO class but unable to find the com.myapp.MyMappings.properties in the same classpath!!!
Is this a bug in standalone WLS?
Edited by: Pricilla on May 26, 2010 8:52 AM
Edited by: Pricilla on May 26, 2010 9:01 AM

Generate XML Schema from Java classes?

Hi,
Considering an XML Mapping, i would like to generate a default XML Schema from my Java class.
Is there a tool in toplink (10.1.3) to do that or does anyone have an easy way to generate this XML schema?
Thanks,
Ludovic

Hi Ludovic,
We don't have support for schema generation from Java classes in TopLink 10.1.3. It's required for JAXB 2.0 so it will be available in a future release.
--Shaun

System.out from Java class not output to JSP

I am using JSP to make a Java API web accessible. I include (package) java classes that write error messages to standard out when they catch an error. Works fine on the command line. Problem occurs when using in JSP. I include them with a page directive (importing the package) rather than use them as beans, since they do so much more than beans do, and since I use many of the classes in a single page.
i.e.
<%@ page import="OPS.*" %>
When errors occur, messages to "standard out" (system.out) don't appear in the html output of the JSP. I don't know where they are going (they aren't in the web server's error log), but they aren't going where I expected them to (browser window).
I figured that standard out was the browser (httpServletResponse). Where am I going wrong here?
Basically, I have a class that connects to a database (call it db) and does queries/updates. I have a class (call it employee) that uses the db class. I have a jsp page that instantiates the employee class and executes method calls. The code in the db class that outputs SQL error messages (db class instantiated by employee class) never gets put in the browser window. Nor in the server log, nor the console.
How can I get system.out calls in classes db and employee to get output to the browser? The JSP outputs all other code and is not freezing nor not flushing the buffer.
Thanks!

I also use an Iplanet over which I have little control. But I can log on via telnet. If I log on (I use Reflection) and run my pages, the errors show in the Reflection window. If you have telnet access to the server, you might want to give this a try.
Another alternative would be to add a few lines to your classes that allow you to pass a reference to the jsp StringWriter from your jsp and use that to output the errors to the browser.

Configuring Windows Scheduler from Java Class

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