content: package act.cli;
  
  /*-
   * #%L
   * ACT Framework
   * %%
   * Copyright (C) 2014 - 2017 ActFramework
   * %%
   * Licensed 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.
   * #L%
   */
  
  import act.app.App;
  import jline.console.completer.Completer;
  import jline.console.completer.StringsCompleter;
  import org.osgl.util.S;
  
  import javax.inject.Inject;
  import javax.inject.Singleton;
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * Allow user to use TAB to auto complete command name
   */
  @Singleton
  public class CommandNameCompleter extends StringsCompleter implements Completer {
  
      @Inject
      public CommandNameCompleter(App app) {
          super(allCommandNames(app.cliDispatcher()));
      }
  
      private static List<String> allCommandNames(CliDispatcher dispatcher) {
          List<String> l = new ArrayList<>();
  
          List<String> appCommands = dispatcher.commands(false, true);
          l.addAll(appCommands);
  
          List<String> sysCommands = dispatcher.commands(true, false);
          l.addAll(sysCommands);
  
          for (String sysCmd : sysCommands) {
              l.add(S.afterFirst(sysCmd, "act."));
          }
          return l;
      }
  }
  