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.binding.TypeBinding;
023    import org.crsh.cmdline.ParameterDescriptor;
024    
025    import java.util.ArrayList;
026    import java.util.List;
027    
028    /**
029     * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
030     * @version $Revision$
031     */
032    public class ParameterMatch<P extends ParameterDescriptor<B>, B extends TypeBinding> {
033    
034      /** . */
035      private final P parameter;
036    
037      /** . */
038      private final List<LiteralValue> values;
039    
040      /** . */
041      private List<String> strings;
042    
043      public ParameterMatch(P parameter, List<LiteralValue> values) {
044        this.parameter = parameter;
045        this.values = values;
046        this.strings = null;
047      }
048    
049      public P getParameter() {
050        return parameter;
051      }
052    
053      public List<LiteralValue> getValues() {
054        return values;
055      }
056    
057      public List<String> getStrings() {
058        if (strings == null) {
059          List<String> strings = new ArrayList<String>(values.size());
060          for (LiteralValue value : values) {
061            strings.add(parameter.isUnquote() ? value.getValue() : value.getRawValue());
062          }
063          this.strings = strings;
064        }
065        return strings;
066      }
067    
068      /**
069       * Compute the value from the parameter metadata and the values list.
070       *
071       * @return the invocation value
072       * @throws CmdSyntaxException anything that would prevent the value from being computed
073       */
074      public Object computeValue() throws CmdSyntaxException {
075        List<String> strings = getStrings();
076        return parameter.parse(strings);
077      }
078    }