/*
 * Copyright 2016 Damien Carol <damien.carol@gmail.com>
 *
 * 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 hdfs.jsr203;

import java.nio.file.attribute.BasicFileAttributes;
import java.nio.file.attribute.FileTime;
import java.util.concurrent.TimeUnit;

import org.apache.hadoop.fs.FileStatus;

/**
 * Implementation of {@link BasicFileAttributes}.
 */
public class HadoopBasicFileAttributes implements BasicFileAttributes {
  /* Internal implementation of file status */
  private final FileStatus fileStatus;
  private final Object fileKey;

  public HadoopBasicFileAttributes(final Object fileKey,
      final FileStatus fileStatus) {
    this.fileKey = fileKey;
    this.fileStatus = fileStatus;
  }

  @Override
  public FileTime creationTime() {
    return FileTime.from(this.fileStatus.getModificationTime(),
        TimeUnit.MILLISECONDS);
  }

  @Override
  public Object fileKey() {
    return this.fileKey;
  }

  @Override
  public boolean isDirectory() {
    return this.fileStatus.isDirectory();
  }

  @Override
  public boolean isOther() {
    return false;
  }

  @Override
  public boolean isRegularFile() {
    return this.fileStatus.isFile();
  }

  @Override
  public boolean isSymbolicLink() {
    return this.fileStatus.isSymlink();
  }

  @Override
  public FileTime lastAccessTime() {
    return FileTime.from(this.fileStatus.getAccessTime(),
        TimeUnit.MILLISECONDS);
  }

  @Override
  public FileTime lastModifiedTime() {
    return FileTime.from(this.fileStatus.getModificationTime(),
        TimeUnit.MILLISECONDS);
  }

  @Override
  public long size() {
    return this.fileStatus.getLen();
  }

  protected FileStatus getFileStatus() {
    return fileStatus;
  }

}