| /* |
| * 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.hive.beeline; |
| |
| import java.util.Arrays; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| import jline.console.completer.AggregateCompleter; |
| import jline.console.completer.Completer; |
| import jline.console.completer.NullCompleter; |
| import jline.console.completer.StringsCompleter; |
| |
| class BeeLineCommandCompleter extends AggregateCompleter { |
| public BeeLineCommandCompleter(Iterable<CommandHandler> handlers) { |
| super(getCompleters(handlers)); |
| } |
| |
| public static List<Completer> getCompleters(Iterable<CommandHandler> handlers){ |
| List<Completer> completers = new LinkedList<Completer>(); |
| |
| for (CommandHandler handler : handlers) { |
| String[] commandNames = handler.getNames(); |
| if (commandNames != null) { |
| for (String commandName : commandNames) { |
| List<Completer> compl = new LinkedList<Completer>(); |
| compl.add(new StringsCompleter(BeeLine.COMMAND_PREFIX + commandName)); |
| compl.addAll(Arrays.asList(handler.getParameterCompleters())); |
| compl.add(new NullCompleter()); // last param no complete |
| completers.add(new AggregateCompleter(compl.toArray(new Completer[compl.size()]))); |
| } |
| } |
| } |
| |
| return completers; |
| } |
| } |