code: /*
   * Copyright (c) 2008-2019 Emmanuel Dupuy.
   * This project is distributed under the GPLv3 license.
   * This is a Copyleft license that gives the user the right to use, 
   * copy and modify the code freely for non-commercial purposes.
   */
  
  package org.jd.gui.service.fileloader;
  
  import org.jd.gui.api.API;
  import org.jd.gui.util.exception.ExceptionUtil;
  import org.objectweb.asm.ClassReader;
  
  import java.io.BufferedInputStream;
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.IOException;
  
  public class ClassFileLoaderProvider extends AbstractTypeFileLoaderProvider {
      protected static final String[] EXTENSIONS = { "class" };
  
      @Override public String[] getExtensions() { return EXTENSIONS; }
      @Override public String getDescription() { return "Class files (*.class)"; }
  
      @Override
      public boolean accept(API api, File file) {
          return file.exists() && file.isFile() && file.canRead() && file.getName().toLowerCase().endsWith(".class");
      }
  
      @Override
      public boolean load(API api, File file) {
          try (BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file))) {
              ClassReader classReader = new ClassReader(bis);
              String pathInFile = classReader.getClassName().replace("/", File.separator) + ".class";
  
              return load(api, file, pathInFile);
          } catch (IOException e) {
              assert ExceptionUtil.printStackTrace(e);
              return false;
          }
      }
  }
  