package loader;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import java.io.*;
import java.util.ArrayList;
import java.util.List;
/**
* Created by Lxx on 2017/4/23.
*/
public class ClassFileLoader {
private List<String> clzPaths = new ArrayList<String>();
public byte[] readBinaryCode(String className) {
className = className.replace('.', File.separatorChar) +".class";
for(String path : this.clzPaths){
String clzFileName = path + File.separatorChar + className;
byte[] codes = loadClassFile(clzFileName);
if(codes != null){
return codes;
}
}
return null;
}
private byte[] loadClassFile(String clzFileName) {
File f = new File(clzFileName);
try {
return IOUtils.toByteArray(new FileInputStream(f));
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
public void addClassPath(String path) {
if(this.clzPaths.contains(path)){
return;
}
this.clzPaths.add(path);
}
public String getClassPath(){
return StringUtils.join(this.clzPaths,";");
}
}