/**
* 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.LinkedList;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.PathExistsException;
import org.apache.hadoop.fs.PathIOException;
import org.apache.hadoop.fs.PathIsNotDirectoryException;
import org.apache.hadoop.fs.PathNotFoundException;
/**
* Create the given dir
*/
@InterfaceAudience.Private
@InterfaceStability.Unstable
class Mkdir extends FsCommand {
public static void registerCommands(CommandFactory factory) {
factory.addClass(Mkdir.class, "-mkdir");
}
public static final String NAME = "mkdir";
public static final String USAGE = "[-p] <path> ...";
public static final String DESCRIPTION =
"Create a directory in specified location.\n" +
"-p: Do not fail if the directory already exists";
private boolean createParents;
@Override
protected void processOptions(LinkedList<String> args) {
CommandFormat cf = new CommandFormat(1, Integer.MAX_VALUE, "p");
cf.parse(args);
createParents = cf.getOpt("p");
}
@Override
protected void processPath(PathData item) throws IOException {
if (item.stat.isDirectory()) {
if (!createParents) {
throw new PathExistsException(item.toString());
}
} else {
throw new PathIsNotDirectoryException(item.toString());
}
}
@Override
protected void processNonexistentPath(PathData item) throws IOException {
// check if parent exists. this is complicated because getParent(a/b/c/) returns a/b/c, but
// we want a/b
if (!item.fs.exists(new Path(item.path.toString()).getParent()) && !createParents) {
throw new PathNotFoundException(item.toString());
}
if (!item.fs.mkdirs(item.path)) {
throw new PathIOException(item.toString());
}
}
}