content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one or more
   *  contributor license agreements.  See the NOTICE file distributed with
   *  this work for additional information regarding copyright ownership.
   *  The ASF licenses this file to You 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
   *
   *      https://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.apache.ivy.plugins.repository.sftp;
  
  import java.io.IOException;
  import java.io.InputStream;
  
  import org.apache.ivy.plugins.repository.Resource;
  
  public class SFTPResource implements Resource {
      private SFTPRepository repository;
  
      private String path;
  
      private transient boolean init = false;
  
      private transient boolean exists;
  
      private transient long lastModified;
  
      private transient long contentLength;
  
      public SFTPResource(SFTPRepository repository, String path) {
          this.repository = repository;
          this.path = path;
      }
  
      public String getName() {
          return path;
      }
  
      public Resource clone(String cloneName) {
          return new SFTPResource(repository, cloneName);
      }
  
      public long getLastModified() {
          init();
          return lastModified;
      }
  
      public long getContentLength() {
          init();
          return contentLength;
      }
  
      public boolean exists() {
          init();
          return exists;
      }
  
      private void init() {
          if (!init) {
              Resource r = repository.resolveResource(path);
              contentLength = r.getContentLength();
              lastModified = r.getLastModified();
              exists = r.exists();
              init = true;
          }
      }
  
      public String toString() {
          return getName();
      }
  
      public boolean isLocal() {
          return false;
      }
  
      public InputStream openStream() throws IOException {
          return repository.openStream(this);
      }
  }
  