content: /*
   * Copyright 2016 HuntBugs contributors
   * 
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   * 
   *     http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package one.util.huntbugs.repo;
  
  import java.util.Enumeration;
  import java.util.jar.JarEntry;
  import java.util.jar.JarFile;
  
  import com.strobel.assembler.metadata.ITypeLoader;
  import com.strobel.assembler.metadata.JarTypeLoader;
  
  /**
   * @author Tagir Valeev
   *
   */
  public class JarRepository implements Repository {
      private final JarFile file;
  
      public JarRepository(JarFile file) {
          this.file = file;
      }
  
      @Override
      public ITypeLoader createTypeLoader() {
          return new JarTypeLoader(file);
      }
  
      @Override
      public void visit(String rootPackage, RepositoryVisitor visitor) {
          Enumeration<JarEntry> entries = file.entries();
          String skipPrefix = null;
          while(entries.hasMoreElements()) {
              JarEntry entry = entries.nextElement();
              if(!rootPackage.isEmpty() && !entry.getName().startsWith(rootPackage+"/") && !entry.getName().equals(rootPackage))
                  continue;
              if(skipPrefix != null) {
                  if(entry.getName().startsWith(skipPrefix))
                      continue;
                  skipPrefix = null;
              }
              if(entry.isDirectory()) {
                  if(!visitor.visitPackage(entry.getName())) {
                      skipPrefix = entry.getName()+"/";
                  }
              } else {
                  if(entry.getName().endsWith(".class")) {
                      String className = entry.getName();
                      className = className.substring(0, className.length()-".class".length());
                      if(!className.contains("$"))
                          visitor.visitClass(className);
                  }
              }
          }
      }
  
  }
  