/*
 * Licensed to the University of California, Berkeley 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 tachyon.shell.command;

import java.io.IOException;

import tachyon.TachyonURI;
import tachyon.client.file.FileSystem;
import tachyon.conf.TachyonConf;
import tachyon.exception.TachyonException;

/**
 * Removes the file specified by argv.
 */
public final class RmCommand extends WithWildCardPathCommand {

  /**
   * @param conf the configuration for Tachyon
   * @param tfs the filesystem of Tachyon
   */
  public RmCommand(TachyonConf conf, FileSystem tfs) {
    super(conf, tfs);
  }

  @Override
  public String getCommandName() {
    return "rm";
  }

  @Override
  void runCommand(TachyonURI path) throws IOException {
    try {
      if (!mTfs.exists(path)) {
        throw new IOException("rm: Path " + path + " does not exist");
      }
      if (mTfs.getStatus(path).isFolder()) {
        throw new IOException("rm: cannot remove a directory, please try rmr <path>");
      }
      mTfs.delete(path);
      System.out.println(path + " has been removed");
    } catch (TachyonException e) {
      throw new IOException(e);
    }
  }

  @Override
  public String getUsage() {
    return "rm <path>";
  }
}

@@ -1494,20 +1494,16 @@
 eption(%22
-rm: 
 Path %22 +

Fix error message.