Examples of org.apache.hadoop.fs.Trash$Emptier

org.apache.hadoop.fs.Trash
Provides a trash feature. Files are moved to a user's trash directory, a subdirectory of their home directory named ".Trash". Files are initially moved to a current sub-directory of the trash directory. Within that sub-directory their original path is preserved. Periodically one may checkpoint the current trash and remove older checkpoints. (This design permits trash management without enumeration of the full trash content, without date support in the filesystem, and without clock synchronization.)

  public FsShell(Configuration configuration, FileSystem fs) {
    this.configuration = configuration;
    try {
      this.fs = (fs != null ? fs : FileSystem.get(configuration));
      this.internalFs = (fs == null);
      this.trash = new Trash(configuration);
    } catch (IOException ex) {
      throw new HadoopException("Cannot create shell " + ex.getMessage(), ex);
    }
  }

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            throw new IllegalStateException("Cannot remove directory \"" + src
                + "\", if recursive deletion was not specified");
          }
          if (!skipTrash) {
            try {
              Trash trashTmp = new Trash(srcFs, configuration);
              trashTmp.moveToTrash(p);
            } catch (IOException ex) {
              throw new HadoopException("Cannot move to Trash resource " + p, ex);
            }
          }
          srcFs.delete(p, recursive);

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    }
  }


    public static void moveToTrash(Configuration conf, Path path)
      throws IOException {
  Trash t = new Trash(conf);
  boolean isMoved = t.moveToTrash(path);
  t.expunge();
  if (!isMoved) {
      logger.error("Trash is not enabled or file is already in the trash.");
  }
    }

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        conf, DFSConfigKeys.DFS_NAMENODE_PLUGINS_KEY, NamenodePlugin.class);
    pluginDispatcher.dispatchStart(this);
  }


  private void startTrashEmptier(Configuration conf) throws IOException {
    this.emptier = new Thread(new Trash(conf).getEmptier(), "Trash Emptier");
    this.emptier.setDaemon(true);
    this.emptier.start();
  }

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    }


    @Override
    protected void processArguments(LinkedList<PathData> args)
    throws IOException {
      Trash trash = new Trash(getConf());
      trash.expunge();
      trash.checkpoint();    
    }

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    try {
      this.namesystem = new FSNamesystem(this.nameNodeAddress.getHostName(), this.nameNodeAddress.getPort(), this, conf);
      this.server.start();  //start RPC server   
  
      this.emptier = new Thread(new Trash(conf).getEmptier(), "Trash Emptier");
      this.emptier.setDaemon(true);
      this.emptier.start();
    } catch (IOException e) {
      this.server.stop();
      throw e;

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    try {
      this.namesystem = new FSNamesystem(this.nameNodeAddress.getHostName(), this.nameNodeAddress.getPort(), this, conf);
      this.server.start();  //start RPC server   
  
      this.emptier = new Thread(new Trash(conf).getEmptier(), "Trash Emptier");
      this.emptier.setDaemon(true);
      this.emptier.start();
    } catch (IOException e) {
      this.server.stop();
      throw e;

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    LOG.info("deleting  " + f);
    try {
      if(!fs.exists(f)) {
        return false;
      }
      Trash trashTmp = new Trash(fs.getConf());
      if (trashTmp.moveToTrash(f)) {
        LOG.info("Moved to trash: " + f);
        return true;
      }
      if (fs.delete(f, true)) {
        LOG.info("Deleted the diretory " + f);

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          @Override
          public FileSystem run() throws IOException {
            return FileSystem.get(conf);
          }
        });
    this.emptier = new Thread(new Trash(fs, conf).getEmptier(), "Trash Emptier");
    this.emptier.setDaemon(true);
    this.emptier.start();
  }

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    try {
      this.namesystem = new FSNamesystem(this.nameNodeAddress.getHostName(), this.nameNodeAddress.getPort(), this, conf);
      this.server.start();  //start RPC server   
  
      this.emptier = new Thread(new Trash(conf).getEmptier(), "Trash Emptier");
      this.emptier.setDaemon(true);
      this.emptier.start();
    } catch (IOException e) {
      this.server.stop();
      throw e;

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