How JAVA application can interact with wM?

sam1234 · July 10, 2009, 12:16pm

Hi,

How can JAVA application can interact with wM (how can they call our service directly? apart from calling our webServices).

Do wM application team needs to send any of their jar files to Java application team?

Thanks in advance,
Sam

Gunasekhar_Tirupati1 · July 10, 2009, 12:31pm

Using http you can call a wm service directly.
Use http://servername:port/invoke/Service_FullyQualifiedName

You can also exchange data using FTP.

Cheers
Guna
http://www.nibodo.com

jide · July 10, 2009, 2:30pm

You can call the service directly using code like this from a java program:


Context context = new Context();
IData input= IDataFactory.create();
IDataCursor idc = input.getCursor();
idc.insertAfter("myVariable", "Hello!");
idc.destroy();
context.connect("distantHost", "login", "password");
IData output = context.invoke("folderName", "serviceName", input);

//manage output

you just have to send your application team the client.jar which contains the right classes (IData etc.)

system · July 10, 2009, 4:08pm

And may I suggest some documents on how to use services and messaging instead of RPC based calls. Both of which are very easy to do from Java.

sam1234 · July 13, 2009, 11:33am

Hi,

Using Developer got the java client code as below

/*

This class has been automatically generated by the webMethods Developer™.

/
import java.io.;
import java.util.Vector;
import com.wm.util.Table;
import com.wm.data.;
import com.wm.util.coder.IDataCodable;
import com.wm.app.b2b.util.GenUtil;
import com.wm.app.b2b.client.Context;
import com.wm.app.b2b.client.ServiceException;
public class temp1{
public static void main(String[] args)
{
// Connect to server - edit for alternate server
String server = “XXXXXXXXXX:5555”;
Context context = new Context();
// To use SSL:
//
// context.setSecure(true);
// Optionally send authentication certificates
//
// String cert = “c:\myCerts\cert.der”;
// String privKey = “c:\myCerts\privkey.der”;
// String cacert = “c:\myCerts\cacert.der”;
// context.setSSLCertificates(cert, privKey, cacert);
// Set username and password for protected services
String username = “Administrator”;
String password = “manage”;
try {
context.connect(server, username, password);
} catch (ServiceException e) {
System.out.println(“\n\tCannot connect to server "”+server+“"”);
System.exit(0);
}
try
{
// Collect inputs (top-level only)
IData inputDocument = getInputs();
// *** Invoke the Service and Disconnect ***
IData outputDocument = invoke(context, inputDocument);
context.disconnect();
System.out.println("\n******** Successful invoke “);
// *** Access the Results ***
System.out.println(”\n*** Inputs ****“);
GenUtil.printRec(inputDocument, “Input”);
System.out.println(”\n Outputs *****************");
GenUtil.printRec(outputDocument, “Output”);
} catch (IOException e) {
System.err.println(e);
} catch (ServiceException e) {
System.err.println(e);
}
System.exit(0);
}

// *** Collect Inputs *** //
public static IData getInputs()
     throws IOException, ServiceException
{
   return Input_getInputs();
}

public static IData Output_getInputs()
     throws IOException, ServiceException
{
     IData out = IDataFactory.create();
     IDataCursor idc = out.getCursor();
     idc.insertAfter("str", getString("str"));
     idc.destroy();
     return out;
}
public static IData Input_getInputs()
     throws IOException, ServiceException
{
     IData out = IDataFactory.create();
     IDataCursor idc = out.getCursor();
     idc.insertAfter("var1", getString("var1"));
     idc.insertAfter("var2", getString("var2"));
     idc.destroy();
     return out;
}
public static String getString(String name)
     throws IOException, ServiceException
{
     System.out.print(name + " =");
     return (new BufferedReader(new InputStreamReader(System.in))).readLine();
}
public static String[] getStringArray(String name)
     throws IOException, ServiceException
{
     int size;
     String tmp;
     System.out.print(name + ": how large? ");
     tmp = (new BufferedReader(new InputStreamReader(System.in))).readLine();
     size = Integer.parseInt(tmp);
     String[] strArray = new String[size];
     for(int i = 0; i < size; i++){
  strArray[i] = getString(name +"[" + i + "]");
     }
     return strArray;
}
public static String[][] getStringTable(String name)
     throws IOException, ServiceException
{
     int rows = 0, cols = 0;
     String tmp;
     System.out.print(name + ": how many rows? ");
     tmp = (new BufferedReader(new InputStreamReader(System.in))).readLine();
     rows = Integer.parseInt(tmp);
     System.out.print(name + ": how many cols? ");
     tmp = (new BufferedReader(new InputStreamReader(System.in))).readLine();
     cols = Integer.parseInt(tmp);
     String[][] strTable = new String[rows][cols];
     for(int i = 0; i < rows; i++){
         for(int j = 0; j < cols; j++){
              strTable[i][j] = getString(name+"["+i+"]["+j+"]");
         }
     }
     return strTable;
}
public static IData invoke(
    Context context, IData inputDocument)
    throws IOException, ServiceException
{
     IData out = context.invoke("Temp", "temp1", inputDocument);
     IData outputDocument = out;
     return outputDocument;
}

}

Also compiled successfully, but when I tried to execute from comand prompt, throwing error as below

c:>java temp1
Exception in thread “main” java.lang.NoClassDefFoundError: javax/mail/internet/ParseException
at com.wm.util.Base64.encode(Base64.java:68)
at com.wm.app.b2b.client.BaseContext.setAuthentication(BaseContext.java:587)
at com.wm.app.b2b.client.Context.connect(Context.java:527)
at sample1.main(sample1.java:38)
Caused by: java.lang.ClassNotFoundException: javax.mail.internet.ParseException
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
… 4 more

Verified the CLASSPATH & PATH

CLASSPATH=.;C:\jdk1.5.0_19\jre;C:\webMethods7\common\lib;C:\webMethods7\common\lib\ext;

PATH=C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\jdk1.5.0_19;C:\jdk1.5.0_19\bin;C:\jdk1.5.0_19\lib;C:\webMethods7\common\lib;C:\webMethods7\common\lib\ext;
Am seeing “ws-isclient.jar” file not “client.jar” file (do we have any other client jar file to be included?)
Any correction please.

Regards,
Sam

sam1234 · July 13, 2009, 12:45pm

Hi All,

It worked now when tried as below from command prompt

C:>java -classpath .;C:\webMethods7\common\lib\ext\mail.jar;C:\webMethods7\common\lib\wm-isclient.jar temp1

But don’t know the reason why it didn’t work earlier(because I have set classpath the same as typed in command prompt, CLASSPATH=.;C:\jdk1.5.0_19\jre;C:\webMethods7\common\lib;C:\webMethods7\common\lib\ext;
)

Thank you all.
Sam.

reamon · July 13, 2009, 8:25pm

As per the other thread on this topic, IMO, this is not the way to go. Using the IS Java API ties the Java app to IS and isn’t any simpler than using XML over HTTP (you’ll find many more developers know how to do that than use the IS Java API).

The first attempt didn’t work because the jar file wasn’t on the classpath. When class files are in a jar/zip, that jar/zip must be explicitly on the classpath. Having the directory in which it is located is not sufficient.

sam1234 · July 14, 2009, 9:51am

Hi Rob,

Thanks for your information.

Regards,
Sam.