Add external plugin support

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

src/org/nwapw/abacus/Abacus.java

@@ -1,10 +1,14 @@
 package org.nwapw.abacus;
 
 import org.nwapw.abacus.plugin.PluginManager;
-import org.nwapw.abacus.plugin.StandardPlugin;
+//import org.nwapw.abacus.plugin.StandardPlugin;
 import org.nwapw.abacus.window.Window;
+import org.nwapw.abacus.plugin.ClassFinderV2;
 
 import javax.swing.*;
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
 
 public class Abacus {
 
@@ -22,10 +26,33 @@ public class Abacus {
             e.printStackTrace();
         }
         manager = new PluginManager();
-        manager.addInstantiated(new StandardPlugin(manager));
+        ArrayList<String> names = new ArrayList();
+        try {
+
+            ClassFinderV2 classFinder = new ClassFinderV2();
+            File pluginFile = new File("C:\\Users\\galbraithja\\Desktop\\.git\\abacus\\src\\org\\nwapw\\abacus\\plugin");
+            for(File classes:pluginFile.listFiles()){
+                if(classes.getName().endsWith(".jar")){
+                    names.addAll(classFinder.addJar("C:\\Users\\galbraithja\\Desktop\\.git\\abacus\\src\\org\\nwapw\\abacus\\plugin\\Standard.jar"));
+                }
+            }
+            for(String name:names){
+                System.out.println(name);
+            }
+            ArrayList<Class> classes = classFinder.getClasses();
+            for(Class classGet:classes){
+                manager.addClass(classGet);
+            }
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
         mainUi = new Window(manager);
         mainUi.setVisible(true);
         manager.load();
+
     }
 
     public static void main(String[] args){

src/org/nwapw/abacus/plugin/ClassFinderV2.java

@@ -0,0 +1,51 @@
+package org.nwapw.abacus.plugin;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+
+public class ClassFinderV2 {
+    ArrayList<Class> classes;
+    URL[] urls;
+    public ClassFinderV2(){
+        classes = new ArrayList();
+    }
+    public ArrayList<String> addJar(String path) throws IOException, ClassNotFoundException {
+        //urls = new URL[]{new URL("jar:file:" + path + "!/")};
+        return addJar(new File(path));
+    }
+    public ArrayList<String> addJar(File jarLocation) throws IOException, ClassNotFoundException {
+        String path = jarLocation.getPath();
+        urls = new URL[]{new URL("jar:file:" + path + "!/")};
+        URLClassLoader classLoader = URLClassLoader.newInstance(urls);
+        JarFile jarFolder = new JarFile(jarLocation);
+        Enumeration jarList = jarFolder.entries();
+        ArrayList<String> classNames = new ArrayList();
+        while(jarList.hasMoreElements()){
+            JarEntry tempJar = (JarEntry)jarList.nextElement();
+            if(tempJar.getName().endsWith(".class")){
+                //System.out.println(tempJar.getName());
+                classNames.add(tempJar.getName());
+                classes.add(classLoader.loadClass(tempJar.getName().replace('/','.').substring(0,tempJar.getName().length()-6)));
+            }
+        }
+        return classNames;
+    }
+    public ArrayList<Class> getClasses(){
+        return classes;
+    }
+    public Class getClass(int number){
+        return classes.get(number);
+    }
+    public void delClasses(){
+        classes=new ArrayList();
+    }
+    public int classCount(){
+        return classes.size();
+    }
+}