| /** |
| * 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.hadoop.fs.shell; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.LinkedList; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.ContentSummary; |
| import org.apache.hadoop.fs.FsShell; |
| |
| /** |
| * Count the number of directories, files, bytes, quota, and remaining quota. |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Evolving |
| |
| public class Count extends FsCommand { |
| /** |
| * Register the names for the count command |
| * @param factory the command factory that will instantiate this class |
| */ |
| public static void registerCommands(CommandFactory factory) { |
| factory.addClass(Count.class, "-count"); |
| } |
| |
| public static final String NAME = "count"; |
| public static final String USAGE = "[-q] <path> ..."; |
| public static final String DESCRIPTION = |
| "Count the number of directories, files and bytes under the paths\n" + |
| "that match the specified file pattern. The output columns are:\n" + |
| "DIR_COUNT FILE_COUNT CONTENT_SIZE FILE_NAME or\n" + |
| "QUOTA REMAINING_QUATA SPACE_QUOTA REMAINING_SPACE_QUOTA \n" + |
| " DIR_COUNT FILE_COUNT CONTENT_SIZE FILE_NAME"; |
| |
| private boolean showQuotas; |
| |
| /** Constructor */ |
| public Count() {} |
| |
| /** Constructor |
| * @deprecated invoke via {@link FsShell} |
| * @param cmd the count command |
| * @param pos the starting index of the arguments |
| * @param conf configuration |
| */ |
| @Deprecated |
| public Count(String[] cmd, int pos, Configuration conf) { |
| super(conf); |
| this.args = Arrays.copyOfRange(cmd, pos, cmd.length); |
| } |
| |
| @Override |
| protected void processOptions(LinkedList<String> args) { |
| CommandFormat cf = new CommandFormat(1, Integer.MAX_VALUE, "q"); |
| cf.parse(args); |
| if (args.isEmpty()) { // default path is the current working directory |
| args.add("."); |
| } |
| showQuotas = cf.getOpt("q"); |
| } |
| |
| @Override |
| protected void processPath(PathData src) throws IOException { |
| ContentSummary summary = src.fs.getContentSummary(src.path); |
| out.println(summary.toString(showQuotas) + src); |
| } |
| } |