Eclipse Community Forums
Forum Search:

Search      Help    Register    Login    Home
Home » Newcomers » Newcomers » Introspection using Reflection(Introspection using Reflection)
Introspection using Reflection [message #695157] Mon, 11 July 2011 06:36
Vineet  is currently offline Vineet
Messages: 1
Registered: July 2011
Junior Member
I am using the below code for introspection of a package

package groupHistory;

import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;

/**
* Scans all classes accessible from the context class loader which belong to the given package and subpackages.
*
* @param packageName The base package
* @return The classes
* @throws ClassNotFoundException
* @throws IOException
*/

class Temporary1{

public static Class[] getClasses(String packageName)
throws ClassNotFoundException, IOException {

ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
assert classLoader != null;
String path = packageName.replace('.', '/');
System.out.println(path);
Enumeration<URL> resources = classLoader.getResources(path);

List<File> dirs = new ArrayList<File>();
while (resources.hasMoreElements()) {

URL resource = resources.nextElement();

dirs.add(new File(resource.getFile().replace("%20", " ")));

}
ArrayList<Class> classes = new ArrayList<Class>();
for (File directory : dirs) {

classes.addAll(findClasses(directory, packageName));
}
return classes.toArray(new Class[classes.size()]);
}

/**
* Recursive method used to find all classes in a given directory and subdirs.
*
* @param directory The base directory
* @param packageName The package name for classes found inside the base directory
* @return The classes
* @throws ClassNotFoundException
*/
public static List<Class> findClasses(File directory, String packageName) throws ClassNotFoundException {
List<Class> classes = new ArrayList<Class>();
System.out.println(directory.exists());
if (!directory.exists()) {

return classes;
}
File[] files = directory.listFiles();
for (File file : files) {
if (file.isDirectory()) {
assert !file.getName().contains(".");
classes.addAll(findClasses(file, packageName + "." + file.getName()));
} else if (file.getName().endsWith(".class")) {
classes.add(Class.forName(packageName + '.' + file.getName().substring(0, file.getName().length() - 6)));
}
}
return classes;
}



}

public class Temporary{

public static void main(String[] args) {
try{


Class[] classes = Temporary1.getClasses(".");
System.out.println(classes.length);

for (int i = 0; i < classes.length; i++) {

System.out.println(classes[i].getName());
System.out.println();
}
System.out.println("I am done ");
}catch(Exception e){System.out.println(e.getMessage());}

}
}



But the problem is I wanna get all the classes available in a project in Eclipse because I will get to know that only.
How can achieve this using java code

Thanks
Previous Topic:Eclipse not working on Windows 7
Next Topic:Performance Issue
Goto Forum:
  


Current Time: Tue Sep 16 05:06:16 GMT 2014

Powered by FUDForum. Page generated in 0.41972 seconds
.:: Contact :: Home ::.

Powered by: FUDforum 3.0.2.
Copyright ©2001-2010 FUDforum Bulletin Board Software