content: package act.util;
  
  /*-
   * #%L
   * ACT Framework
   * %%
   * Copyright (C) 2014 - 2017 ActFramework
   * %%
   * 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.
   * #L%
   */
  
  import org.osgl.util.FastStr;
  import org.osgl.util.S;
  
  import java.io.File;
  
  /**
   * utilities to manipulate class names
   */
  public enum ClassNames {
      ;
  
      public static String classFileNameToClassName(String fileName) {
          if (File.separatorChar != '/') {
              fileName = fileName.replace(File.separatorChar, '/');
          }
          if (fileName.startsWith("/")) {
              fileName = fileName.substring(1);
          }
          return S.beforeLast(fileName.replace('/', '.'), ".");
      }
  
      public static String classNameToClassFileName(String className) {
          return classNameToClassFileName(className, false);
      }
  
      public static String classNameToClassFileName(String className, boolean keepInnerClass) {
          FastStr fs = FastStr.of(className);
          if (!keepInnerClass && className.contains("$")) {
              fs = fs.beforeFirst('$');
          }
          fs = fs.replace('.', '/').append(".class").prepend('/');
          return fs.toString();
      }
  
      public static String sourceFileNameToClassName(File baseDir, String filePath) {
          if (!filePath.endsWith(".java")) {
              return null;
          }
          FastStr path0 = FastStr.of(baseDir.getAbsolutePath());
          FastStr path1 = FastStr.of(filePath);
          if (File.separatorChar != '/') {
              path0 = path0.replace(File.separatorChar, '/');
              path1 = path1.replace(File.separatorChar, '/');
          }
          FastStr ret = path1.afterFirst(path0);
          if (ret.startsWith("/")) {
              ret = ret.substr(1);
          }
          return ret.replace('/', '.').beforeLast('.').toString();
      }
  }
  