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https://github.com/DanilaFe/abacus
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Jar Plugin Loader
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src/org/nwapw/abacus/plugin/ClassFinder.java
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65
src/org/nwapw/abacus/plugin/ClassFinder.java
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package org.nwapw.abacus.plugin;
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import java.io.BufferedInputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Enumeration;
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import java.util.HashMap;
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import java.util.jar.JarEntry;
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import java.util.jar.JarFile;
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import java.util.zip.ZipInputStream;
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public class ClassFinder extends ClassLoader{
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ArrayList<Class> classes;
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public ClassFinder(){
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super(ClassFinder.class.getClassLoader());
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classes=new ArrayList();
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}
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public Class loadClass(String className) throws ClassNotFoundException{
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return findClass(className);
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}
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public ArrayList<String> loadClass(File jarLocation) throws ClassNotFoundException, IOException{
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return addJar(jarLocation);
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}
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public ArrayList<String> addJar(File jarLocation) throws IOException {
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JarFile jarFolder = new JarFile(jarLocation);
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Enumeration jarList = jarFolder.entries();
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HashMap classSize = new HashMap();
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HashMap classContent = new HashMap();
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ArrayList<String> classNames = new ArrayList();
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JarEntry tempJar;
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ZipInputStream zipStream = new ZipInputStream(new BufferedInputStream(new FileInputStream(jarLocation)));
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while(jarList.hasMoreElements()){
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tempJar = (JarEntry)jarList.nextElement();
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zipStream.getNextEntry();
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if(!tempJar.isDirectory()) {
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if (tempJar.getName().substring(tempJar.getName().indexOf('.')).equals(".class") && (tempJar.getName().length() < 9 || !tempJar.getName().substring(0, 9).equals("META-INF/"))) {
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int size = (int)tempJar.getSize();
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classSize.put(tempJar.getName(),new Integer((int)tempJar.getSize()));
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byte[] bytes = new byte[size];
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zipStream.read(bytes,0,size);
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classContent.put(tempJar.getName(),bytes);
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classNames.add(tempJar.getName());
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}
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}
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}
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jarFolder.close();
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for(String name:classNames) {
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classes.add(super.defineClass(name, (byte[]) classContent.get(name), 0, (int) classSize.get(name)));
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}
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return classNames;
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}
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public ArrayList<Class> getClasses(){
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return classes;
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}
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public Class getClass(int number){
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return classes.get(number);
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}
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public void delClasses(){
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classes=new ArrayList();
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}
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}
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