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.invocation;
021
022 import org.crsh.cli.SyntaxException;
023 import org.crsh.cli.impl.LiteralValue;
024 import org.crsh.cli.descriptor.ParameterDescriptor;
025
026 import java.util.ArrayList;
027 import java.util.List;
028
029 public class ParameterMatch<P extends ParameterDescriptor> {
030
031 /** . */
032 private final P parameter;
033
034 /** . */
035 private final List<LiteralValue> values;
036
037 /** . */
038 private List<String> strings;
039
040 public ParameterMatch(P parameter, List<LiteralValue> values) {
041 this.parameter = parameter;
042 this.values = values;
043 this.strings = null;
044 }
045
046 public P getParameter() {
047 return parameter;
048 }
049
050 public List<LiteralValue> getValues() {
051 return values;
052 }
053
054 public List<String> getStrings() {
055 if (strings == null) {
056 List<String> strings = new ArrayList<String>(values.size());
057 for (LiteralValue value : values) {
058 strings.add(parameter.isUnquote() ? value.getValue() : value.getRawValue());
059 }
060 this.strings = strings;
061 }
062 return strings;
063 }
064
065 /**
066 * Compute the value from the parameter metadata and the values list.
067 *
068 * @return the invocation value
069 * @throws org.crsh.cli.SyntaxException anything that would prevent the value from being computed
070 */
071 public Object computeValue() throws SyntaxException {
072 List<String> strings = getStrings();
073 return parameter.parse(strings);
074 }
075 }