Package v7db.files

Source Code of v7db.files.LsCommand

/**
* Copyright (c) 2011-2012, Thilo Planz. All rights reserved.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

package v7db.files;

import java.io.IOException;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.StringUtils;

import v7db.files.mongodb.V7File;
import v7db.files.mongodb.V7GridFS;

import com.mongodb.MongoException;

class LsCommand {

  public static void main(String[] args) throws MongoException, IOException {

    if (args.length != 3) {
      System.err.println("List a file or directory:");
      System.err.println("  ls <root> <path>");
      System.exit(1);
    }

    V7GridFS fs = new V7GridFS(Configuration.getMongo().getDB(
        Configuration.getProperty("mongo.db")));

    String root = args[1];
    String path = args[2];
    String[] fullPath = ArrayUtils.add(StringUtils.split(path, '/'), 0,
        root);
    V7File file = fs.getFile(fullPath);
    if (file == null) {
      System.err.println("file not found");
      System.exit(1);
    }
    if (file.hasContent()) {
      System.out.format("    %10d %80s\n", file.getLength(), file
          .getName());
    }
    List<V7File> children = file.getChildren();
    Collections.sort(children, new Comparator<V7File>() {

      public int compare(V7File o1, V7File o2) {
        return o1.getName().compareTo(o2.getName());
      }
    });
    for (V7File child : children) {
      if (child.getLength() == null)
        System.out.format("d      %10s %80s\n", "", child.getName());
    }
    for (V7File child : children) {
      if (child.getLength() != null)
        System.out.format("-      %10d %80s %10s\n", child.getLength(),
            child.getName(), child.getDigest().substring(0, 10));
    }

  }

}
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