001 /* 002 * Copyright (C) 2010 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.cmdline.matcher; 021 022 import org.crsh.cmdline.CommandDescriptor; 023 import org.crsh.cmdline.Multiplicity; 024 import org.crsh.cmdline.ParameterDescriptor; 025 import org.crsh.cmdline.binding.TypeBinding; 026 027 import java.io.IOException; 028 import java.util.ArrayList; 029 import java.util.HashMap; 030 import java.util.List; 031 import java.util.Map; 032 import java.util.Set; 033 034 /** 035 * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> 036 * @version $Revision$ 037 */ 038 public abstract class CommandMatch<C, D extends CommandDescriptor<C, B>, B extends TypeBinding> { 039 040 /** . */ 041 private final List<OptionMatch<B>> optionMatches; 042 043 /** . */ 044 private final List<ArgumentMatch<B>> argumentMatches; 045 046 /** . */ 047 private final String rest; 048 049 public CommandMatch(List<OptionMatch<B>> optionMatches, List<ArgumentMatch<B>> argumentMatches, String rest) { 050 this.optionMatches = optionMatches; 051 this.argumentMatches = argumentMatches; 052 this.rest = rest; 053 } 054 055 public abstract D getDescriptor(); 056 057 public final Object invoke(InvocationContext context, C command) throws CmdLineException { 058 059 // 060 Set<ParameterDescriptor<?>> unused = getParameters(); 061 Map<ParameterDescriptor<?>, Object> parameterValues = new HashMap<ParameterDescriptor<?>, Object>(); 062 063 // 064 for (ParameterMatch<?, ?> parameterMatch : getParameterMatches()) { 065 ParameterDescriptor<?> parameter = parameterMatch.getParameter(); 066 if (!unused.remove(parameter)) { 067 throw new CmdSyntaxException("Could not find parameter " + parameter); 068 } 069 Object v = parameterMatch.computeValue(); 070 if (v != null) { 071 parameterValues.put(parameter, v); 072 } 073 } 074 075 // 076 return doInvoke(context, command, parameterValues); 077 } 078 079 protected abstract Object doInvoke(InvocationContext context, C command, Map<ParameterDescriptor<?>, Object> values) throws CmdLineException; 080 081 public abstract Set<ParameterDescriptor<?>> getParameters(); 082 083 public abstract List<ParameterMatch<?, ?>> getParameterMatches(); 084 085 public abstract void printMan(Appendable writer) throws IOException; 086 087 public abstract void printUsage(Appendable writer) throws IOException; 088 089 public List<OptionMatch<B>> getOptionMatches() { 090 return optionMatches; 091 } 092 093 public List<ArgumentMatch<B>> getArgumentMatches() { 094 return argumentMatches; 095 } 096 097 public String getRest() { 098 return rest; 099 } 100 }