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.ClassDescriptor;
023 import org.crsh.cmdline.binding.ClassFieldBinding;
024 import org.crsh.cmdline.ParameterDescriptor;
025
026 import java.io.IOException;
027 import java.lang.reflect.Field;
028 import java.util.ArrayList;
029 import java.util.HashSet;
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 class ClassMatch<T> extends CommandMatch<T, ClassDescriptor<T>, ClassFieldBinding> {
039
040 /** . */
041 private final ClassDescriptor<T> descriptor;
042
043 public ClassMatch(
044 ClassDescriptor<T> descriptor,
045 List<OptionMatch<ClassFieldBinding>> optionMatches,
046 List<ArgumentMatch<ClassFieldBinding>> argumentMatches,
047 String rest) {
048 super(optionMatches, argumentMatches, rest);
049
050 //
051 this.descriptor = descriptor;
052 }
053
054 @Override
055 public ClassDescriptor<T> getDescriptor() {
056 return descriptor;
057 }
058
059 @Override
060 public void printMan(Appendable writer) throws IOException {
061 descriptor.printMan(writer);
062 }
063
064 @Override
065 public void printUsage(Appendable writer) throws IOException {
066 descriptor.printUsage(writer);
067 }
068
069 @Override
070 public Set<ParameterDescriptor<?>> getParameters() {
071 Set<ParameterDescriptor<?>> unused = new HashSet<ParameterDescriptor<?>>();
072 unused.addAll(descriptor.getArguments());
073 unused.addAll(descriptor.getOptions());
074 return unused;
075 }
076
077 @Override
078 public List<ParameterMatch<?, ?>> getParameterMatches() {
079 List<ParameterMatch<?, ?>> matches = new ArrayList<ParameterMatch<?, ?>>();
080 matches.addAll(getOptionMatches());
081 matches.addAll(getArgumentMatches());
082 return matches;
083 }
084
085 @Override
086 protected Object doInvoke(InvocationContext context, T command, Map<ParameterDescriptor<?>, Object> values) throws CmdLineException {
087 for (ParameterDescriptor<ClassFieldBinding> parameter : descriptor.getParameters()) {
088 Object value = values.get(parameter);
089
090 //
091 if (value == null) {
092 if (parameter.isRequired()) {
093 throw new CmdSyntaxException("Non satisfied parameter " + parameter);
094 }
095 } else {
096 Field f = parameter.getBinding().getField();
097 try {
098 f.setAccessible(true);
099 f.set(command, value);
100 }
101 catch (Exception e) {
102 throw new CmdInvocationException(e.getMessage(), e);
103 }
104 }
105 }
106
107 //
108 return null;
109 }
110 }