Creating a Java component

After creating an interface and testing it, create a Java™ component to set the values for the properties element.

1. Create a Java component in the assembly diagram.
2. Wire the Java component to the FTPOutboundInterface import. The Java component interface, that is, FTPDynamicConnectionInterface is created. To create the Java component, click the Java component. Click the 'add an interface' icon and select the interface, FTPDynamicConnectionInterface.
3. Set the connection-related properties, which are sent as input to the interface on the BusinessGraph object, for the implementation of the Java component.

   The following sample code is the Java EE component implementation that sets the connection parameters on the properties business object of the BusinessGraph:

   public DataObject createFTPFile(DataObject createFTPFileWrapperBG,String userName,
   			String password, String privateKeyFilePath,
   			String passphrase) {
   
   	DataObject prop = createFTPFileWrapperBG.getDataObject("properties");
   
   	// check if they already created this child object or not
   	if(prop == null) {
   		// Create the "properties" business object
   		prop = createFTPFileWrapperBG.createDataObject("properties");
   	}
   
   	// Setting the property 'userName' to connectionSpec
   	// Note that the username property is prefixed by CS
   	prop.setString("CSuserName", userName);  
   
   	// Setting the property 'password' to connectionSpec
   	// Note that the password property is prefixed by CS
   	prop.setString("CSpassword", password);
   
   	//Setting the property ‘privateKeyFilePath' which is used for SFTP protocol to connection spec
   	prop.setString("CSprivateKeyFilePath", privateKeyFilePath);
   
   	//Setting the property ‘passphrase' which is used for SFTP protocol to connection spec
   	prop.setString("CSpassphrase", passphrase);
   
   
   	// invoke the Adapter
   	Service serv= locateService_SFTPImportPartner();
   	Object boReturn= serv.invoke(
   			"create",
   			createFTPFileWrapperBG);
   
   	// return the result BO that we got back from the FTP Adapter
   	return ((DataObject)boReturn).get(0);
   
     }   

   During run time, the connection properties values are set on the input parameters of the Java component. This in turn is set on the dataobject 'properties' of the BusinessGraph by the above displayed code. The EIS binding then passes the connection properties to the adapter which is set on the dataobject 'properties' by populating it in the ConnectionSpec bean. The adapter uses the ConnectionSpec properties to get a connection to the EIS.

   For more information about EIS binding, see http://publib.boulder.ibm.com/infocenter/dmndhelp/v7r0mx/index.jsp?topic=/com.ibm.websphere.wesb.doc/doc/cadm_dynamicheader.html. For information about how to configure dynamic authentication, see http://www.ibm.com/developerworks/websphere/library/techarticles/0608_martinez/0608_martinez.html.