/*
    * Copyright 2014 The Codehaus Foundation.
    *
    * 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.codehaus.plexus.archiver.resources;
  
  import java.io.File;
  import java.io.IOException;
  
  import org.codehaus.plexus.components.io.attributes.SymlinkUtils;
  import org.codehaus.plexus.components.io.functions.SymlinkDestinationSupplier;
  
  /**
   * A symlink that does not necessarily exist (anywhere).
   */
  public class PlexusIoVirtualSymlinkResource extends PlexusIoVirtualFileResource implements SymlinkDestinationSupplier {
  
      private final String symnlinkDestination;
  
      public PlexusIoVirtualSymlinkResource(File symlinkFile, String symnlinkDestination) {
          super(symlinkFile, getName(symlinkFile));
          this.symnlinkDestination = symnlinkDestination;
      }
  
      @Override
      public String getSymlinkDestination() throws IOException {
          return symnlinkDestination == null
                  ? SymlinkUtils.readSymbolicLink(getFile()).toString()
                  : symnlinkDestination;
      }
  
      @Override
      public boolean isSymbolicLink() {
          return true;
      }
  }