| /** |
| * 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.zookeeper.cli; |
| |
| import org.apache.commons.cli.*; |
| import org.apache.zookeeper.KeeperException; |
| |
| /** |
| * delete command for cli |
| */ |
| public class DeleteCommand extends CliCommand { |
| |
| private static Options options = new Options(); |
| private String[] args; |
| private CommandLine cl; |
| |
| { |
| options.addOption("v", true, "version"); |
| } |
| |
| public DeleteCommand() { |
| super("delete", "[-v version] path"); |
| } |
| |
| @Override |
| public CliCommand parse(String[] cmdArgs) throws ParseException { |
| Parser parser = new PosixParser(); |
| cl = parser.parse(options, cmdArgs); |
| args = cl.getArgs(); |
| if (args.length < 2) { |
| throw new ParseException(getUsageStr()); |
| } |
| |
| retainCompatibility(cmdArgs); |
| |
| return this; |
| } |
| |
| private void retainCompatibility(String[] cmdArgs) throws ParseException { |
| // delete path [version] |
| if (args.length > 2) { |
| // rewrite to option |
| String [] newCmd = new String[4]; |
| newCmd[0] = cmdArgs[0]; |
| newCmd[1] = "-v"; |
| newCmd[2] = cmdArgs[2]; // version |
| newCmd[3] = cmdArgs[1]; // path |
| err.println("'delete path [version]' has been deprecated. " |
| + "Please use 'delete [-v version] path' instead."); |
| Parser parser = new PosixParser(); |
| cl = parser.parse(options, newCmd); |
| args = cl.getArgs(); |
| } |
| } |
| |
| @Override |
| public boolean exec() throws KeeperException, InterruptedException { |
| String path = args[1]; |
| int version; |
| if (cl.hasOption("v")) { |
| version = Integer.parseInt(cl.getOptionValue("v")); |
| } else { |
| version = -1; |
| } |
| |
| try { |
| zk.delete(path, version); |
| } catch(KeeperException.BadVersionException ex) { |
| err.println(ex.getMessage()); |
| } |
| return false; |
| } |
| } |