content: /*
   * 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.bookkeeper.tools.framework;
  
  /**
   * A command that runs a CLI spec. it is typically used for nested sub commands.
   */
  public class CliCommand<GlobalFlagsT extends CliFlags, CommandFlagsT extends CliFlags>
          implements Command<GlobalFlagsT> {
  
      private final String name;
      private String parent;
      protected CliSpec<CommandFlagsT> spec;
  
      public CliCommand(CliSpec<CommandFlagsT> spec) {
          this.spec = spec;
          this.name = spec.name();
          this.parent = spec.parent();
      }
  
      public void setParent(String parent) {
          this.parent = parent;
          this.spec = CliSpec.newBuilder(spec)
              .withParent(parent)
              .build();
      }
  
      @Override
      public String category() {
          return spec.category();
      }
  
      @Override
      public String name() {
          return name;
      }
  
      @Override
      public String path() {
          return parent + " " + name;
      }
  
      @Override
      public String description() {
          return spec.description();
      }
  
      @Override
      public Boolean apply(GlobalFlagsT globalFlags, String[] args) {
          int res = Cli.runCli(spec, args);
          return res == 0;
      }
  
      @Override
      public void usage() {
          // run with "empty args", which will print the usage for this command group.
          Cli.printUsage(spec);
      }
  
      public String getUsage() {
          return spec.usage();
      }
  }
  