/*
    * 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
    *
    *      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.apache.commons.vfs2.provider.local;
  
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.nio.file.Files;
  import java.nio.file.StandardOpenOption;
  
  import org.apache.commons.vfs2.FileObject;
  import org.apache.commons.vfs2.FileSystemException;
  import org.apache.commons.vfs2.FileType;
  import org.apache.commons.vfs2.RandomAccessContent;
  import org.apache.commons.vfs2.provider.AbstractFileName;
  import org.apache.commons.vfs2.provider.AbstractFileObject;
  import org.apache.commons.vfs2.provider.UriParser;
  import org.apache.commons.vfs2.util.FileObjectUtils;
  import org.apache.commons.vfs2.util.RandomAccessMode;
  
  /**
   * A file object implementation which uses direct file access.
   */
  public class LocalFile extends AbstractFileObject<LocalFileSystem> {
  
      private final String rootFile;
  
      private File file;
  
      /**
       * Creates a non-root file.
       *
       * @param fileSystem the file system this file belongs to.
       * @param rootFile the root file for the file system.
       * @param name the file name on this file system.
       */
      protected LocalFile(final LocalFileSystem fileSystem, final String rootFile, final AbstractFileName name) {
          super(name, fileSystem);
          this.rootFile = rootFile;
      }
  
      /**
       * Attaches this file object to its file resource.
       */
      @Override
      protected void doAttach() throws Exception {
          if (file == null) {
              // Remove the "file:///"
              // LocalFileName localFileName = (LocalFileName) getName();
              final String fileName = rootFile + getName().getPathDecoded();
              // fileName = UriParser.decode(fileName);
              file = new File(fileName);
          }
      }
  
      /**
       * Creates this folder.
       */
      @Override
      protected void doCreateFolder() throws Exception {
          if (!file.mkdirs()) {
              throw new FileSystemException("vfs.provider.local/create-folder.error", file);
          }
      }
  
      /**
       * Deletes this file, and all children.
       */
      @Override
      protected void doDelete() throws Exception {
          if (!file.delete()) {
              throw new FileSystemException("vfs.provider.local/delete-file.error", file);
          }
      }
  
      /**
       * Returns the size of the file content (in bytes).
       */
      @Override
      protected long doGetContentSize() throws Exception {
          return file.length();
      }
  
     /**
      * Creates an input stream to read the content from.
      */
     @Override
     protected InputStream doGetInputStream(final int bufferSize) throws Exception {
         return new FileInputStream(file);
     }
 
     /**
      * Gets the last modified time of this file.
      */
     @Override
     protected long doGetLastModifiedTime() throws FileSystemException {
         // Workaround OpenJDK 8 and 9 bug JDK-8177809
         // https://bugs.openjdk.java.net/browse/JDK-8177809
         try {
             return Files.getLastModifiedTime(file.toPath()).toMillis();
         } catch (final IOException e) {
             throw new FileSystemException(file.toString(), e);
         }
     }
 
     /**
      * Creates an output stream to write the file content to.
      */
     @Override
     protected OutputStream doGetOutputStream(final boolean bAppend) throws Exception {
         return Files.newOutputStream(file.toPath(), bAppend ? StandardOpenOption.APPEND : StandardOpenOption.CREATE);
     }
 
     @Override
     protected RandomAccessContent doGetRandomAccessContent(final RandomAccessMode mode) throws Exception {
         return new LocalFileRandomAccessContent(file, mode);
     }
 
     /**
      * Returns the file's type.
      */
     @Override
     protected FileType doGetType() {
         if (!file.exists()) {
             return FileType.IMAGINARY;
         }
         if (file.isDirectory()) {
             return FileType.FOLDER;
         }
         return FileType.FILE;
     }
 
     /**
      * Determines if this file is hidden.
      */
     @Override
     protected boolean doIsExecutable() {
         return file.canExecute();
     }
 
     /**
      * Determines if this file is hidden.
      */
     @Override
     protected boolean doIsHidden() {
         return file.isHidden();
     }
 
     /**
      * Determines if this file can be read.
      */
     @Override
     protected boolean doIsReadable() throws FileSystemException {
         return file.canRead();
     }
 
     @Override
     protected boolean doIsSameFile(final FileObject destFile) throws FileSystemException {
         if (!FileObjectUtils.isInstanceOf(destFile, LocalFile.class)) {
             return false;
         }
 
         final LocalFile./../../org/apache/commons/vfs2/provider/local/LocalFile.html#LocalFile">LocalFile destLocalFile = (LocalFile) FileObjectUtils.getAbstractFileObject(destFile);
         if (!exists() || !destLocalFile.exists()) {
             return false;
         }
 
         try {
             return file.getCanonicalPath().equals(destLocalFile.file.getCanonicalPath());
         } catch (final IOException e) {
             throw new FileSystemException(e);
         }
     }
 
     /**
      * Determines if this file is a symbolic link.
      * 
      * @since 2.4
      */
     @Override
     protected boolean doIsSymbolicLink() throws FileSystemException {
         return Files.isSymbolicLink(file.toPath());
     }
 
     /**
      * Determines if this file can be written to.
      */
     @Override
     protected boolean doIsWriteable() throws FileSystemException {
         return file.canWrite();
     }
 
     /**
      * Returns the children of the file.
      */
     @Override
     protected String[] doListChildren() throws Exception {
         return UriParser.encode(file.list());
     }
 
     /**
      * rename this file
      */
     @Override
     protected void doRename(final FileObject newFile) throws Exception {
         final LocalFile../../../org/apache/commons/vfs2/provider/local/LocalFile.html#LocalFile">LocalFile newLocalFile = (LocalFile) FileObjectUtils.getAbstractFileObject(newFile);
 
         if (!file.renameTo(newLocalFile.getLocalFile())) {
             throw new FileSystemException("vfs.provider.local/rename-file.error", file.toString(), newFile.toString());
         }
     }
 
     @Override
     protected boolean doSetExecutable(final boolean executable, final boolean ownerOnly) throws Exception {
         return file.setExecutable(executable, ownerOnly);
     }
 
     /**
      * Sets the last modified time of this file.
      *
      * @since 2.0
      */
     @Override
     protected boolean doSetLastModifiedTime(final long modtime) throws FileSystemException {
         return file.setLastModified(modtime);
     }
 
     @Override
     protected boolean doSetReadable(final boolean readable, final boolean ownerOnly) throws Exception {
         return file.setReadable(readable, ownerOnly);
     }
 
     @Override
     protected boolean doSetWritable(final boolean writable, final boolean ownerOnly) throws Exception {
         return file.setWritable(writable, ownerOnly);
     }
 
     /**
      * Gets the local file that this file object represents.
      *
      * @return the local file that this file object represents.
      */
     protected File getLocalFile() {
         return file;
     }
 
     /**
      * Returns the URI of the file.
      *
      * @return The URI of the file.
      */
     @Override
     public String toString() {
         try {
             // VFS-325: URI may contain percent-encoded values as part of file name, so decode
             // those characters before returning
             return UriParser.decode(getName().getURI());
         } catch (final FileSystemException e) {
             return getName().getURI();
         }
     }
 }