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