Read Blackberry JAD File Properties

Hi all, Here I want to share with you guys how to read the .jad file properties of the Blackberry application. A .jad file typically preserves all the information regarding out application. We are able to identify the application name, application icon, number of child .cod files, module name and even vendor information. CodeModuleGroupManager gives you all the information.

We can also add custom properties in the .jad file. Am also explaining how to read custom properties.

In my application, I added a custom property of APP-URL in .jad file. It contains a URL and the opens the Blackberry browser with this url.


You need to test this application on the device only, when try to test on simulator the CodeModuleGroupManager.loadAll(); will return you null.

The following is the sample code of how to read the default(modulename) and custom (APP-URL) properties of the .jad file.


package com.winit.webicon;

import java.util.Enumeration;

import net.rim.blackberry.api.browser.Browser;
import net.rim.blackberry.api.browser.BrowserSession;
import net.rim.device.api.system.Application;
import net.rim.device.api.system.ApplicationDescriptor;
import net.rim.device.api.system.CodeModuleGroup;
import net.rim.device.api.system.CodeModuleGroupManager;


public class MainClass extends Application
{

private BrowserSession bs;
private static String defaultURL = "http://www.google.com";
public static void main(String[] args)
{
if( args != null && args.length > 0)
defaultURL = args[0];
new MainClass();
}

MainClass()
{
bs = Browser.getDefaultSession();

CodeModuleGroup[] allGroups = CodeModuleGroupManager.loadAll();
CodeModuleGroup myGroup = null;
String moduleName = ApplicationDescriptor.currentApplicationDescriptor().getModuleName();

for (int i = 0; i < mygroup =" allGroups[i];" defaulturl =" myGroup.getProperty(" defaulturl ="=" e =" myGroup.getPropertyNames();" jad ="">" + e.toString());
while(e.hasMoreElements()){
System.out.println(e.nextElement().toString());
}
}
}
else
{
System.out.println("Server URL: myGroup NOT found !");
}
}
catch (NullPointerException e)
{
System.out.println(e.getMessage());
e.printStackTrace();
}
System.out.println("BBGov: MainClass: Constructor: URL: " + defaultURL + "\n");

bs.displayPage(defaultURL);
bs.showBrowser();
}
}

The following is the smaple .jad file

Manifest-Version: 1.0
RIM-COD-Module-Name: BBGov
RIM-COD-Module-Dependencies: net_rim_cldc,net_rim_bbapi_browser
MIDlet-Jar-Size: 17860
MIDlet-1: ,,
RIM-COD-Creation-Time: 1270629011
MIDlet-Jar-URL: BBGov.jar
RIM-COD-URL: BBGov.cod
RIM-COD-SHA1: 67 b4 bf 32 bc f1 d1 a2 40 b1 bb 9c 78 c0 0c b5 0d 10 e3 f5
RIM-COD-Size: 15308
MicroEdition-Configuration: CLDC-1.1
APP-URL: http://www.winitsoftware.com
MIDlet-Version: 0.0
MIDlet-Name: BBGov
MIDlet-Vendor:
MicroEdition-Profile: MIDP-2.0
RIM-MIDlet-Flags-1: 0