content: /*
   * JBoss, Home of Professional Open Source
   * Copyright 2014 Red Hat Inc. and/or its affiliates and other contributors
   * as indicated by the @authors tag. All rights reserved.
   * See the copyright.txt in the distribution for a
   * full listing of individual 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 org.aesh.command.impl.converter;
  
  import org.aesh.command.converter.Converter;
  import org.aesh.command.converter.ConverterInvocation;
  
  import java.io.File;
  
  /**
   * @author <a href="mailto:stale.pedersen@jboss.org">Ståle W. Pedersen</a>
   */
  public class FileConverter implements Converter<File, ConverterInvocation> {
  
      @Override
      public File convert(ConverterInvocation input) {
          return new File(translatePath(input.getAeshContext().getCurrentWorkingDirectory().getAbsolutePath(), input.getInput()));
      }
  
      public static String translatePath(String cwd, String path) {
          String translated;
          // special character: ~ maps to the user's home directory
          if (path.startsWith("~" + File.separator)) {
              translated = System.getProperty("user.home") + path.substring(1);
          } else if (path.startsWith("~")) {
              String userName = path.substring(1);
              translated = new File(new File(System.getProperty("user.home")).getParent(),
                      userName).getAbsolutePath();
              // Keep the path separator in translated or add one if no user home specified
              translated = userName.isEmpty() || path.endsWith(File.separator) ? translated + File.separator : translated;
          } else if (!new File(path).isAbsolute()) {
              translated = cwd + File.separator + path;
          } else {
              translated = path;
          }
          return translated;
      }
  
  }
  