001 /* 002 * Copyright (C) 2012 eXo Platform SAS. 003 * 004 * This is free software; you can redistribute it and/or modify it 005 * under the terms of the GNU Lesser General Public License as 006 * published by the Free Software Foundation; either version 2.1 of 007 * the License, or (at your option) any later version. 008 * 009 * This software is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * You should have received a copy of the GNU Lesser General Public 015 * License along with this software; if not, write to the Free 016 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 017 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 018 */ 019 020 package org.crsh.cli.impl.completion; 021 022 import org.crsh.cli.impl.Delimiter; 023 import org.crsh.cli.completers.EmptyCompleter; 024 import org.crsh.cli.descriptor.ParameterDescriptor; 025 import org.crsh.cli.spi.Completer; 026 027 class ParameterCompletion extends Completion { 028 029 /** . */ 030 private final String prefix; 031 032 /** . */ 033 private final Delimiter delimiter; 034 035 /** . */ 036 private final ParameterDescriptor parameter; 037 038 /** . */ 039 private final Completer completer; 040 041 public ParameterCompletion(String prefix, Delimiter delimiter, ParameterDescriptor parameter, Completer completer) { 042 this.prefix = prefix; 043 this.delimiter = delimiter; 044 this.parameter = parameter; 045 this.completer = completer; 046 } 047 048 public CompletionMatch complete() throws CompletionException { 049 050 Class<? extends Completer> completerType = parameter.getCompleterType(); 051 Completer completer = this.completer; 052 053 // Use the most adapted completer 054 if (completerType != EmptyCompleter.class) { 055 try { 056 completer = completerType.newInstance(); 057 } 058 catch (Exception e) { 059 throw new CompletionException(e); 060 } 061 } 062 063 // 064 if (completer != null) { 065 try { 066 return new CompletionMatch(delimiter, completer.complete(parameter, prefix)); 067 } 068 catch (Exception e) { 069 throw new CompletionException(e); 070 } 071 } else { 072 return new CompletionMatch(delimiter, org.crsh.cli.spi.Completion.create()); 073 } 074 } 075 }