001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2009 SonarSource SA
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    package org.sonar.squid.indexer;
021    
022    import org.sonar.squid.api.Query;
023    import org.sonar.squid.api.SourceCode;
024    import org.sonar.squid.measures.Metric;
025    
026    public class QueryByMeasure implements Query {
027    
028      private final Metric   metric;
029      private final Operator operator;
030      private final double   value;
031    
032      public enum Operator {
033        GREATER_THAN, EQUALS, GREATER_THAN_EQUALS, LESS_THAN, LESS_THAN_EQUALS
034      }
035    
036      public QueryByMeasure(Metric metric, Operator operator, double value) {
037        this.metric = metric;
038        this.operator = operator;
039        this.value = value;
040      }
041    
042      public boolean match(SourceCode unit) {
043        switch (operator) {
044          case EQUALS:
045            return unit.getDouble(metric) == value;
046          case GREATER_THAN:
047            return unit.getDouble(metric) > value;
048          case GREATER_THAN_EQUALS:
049            return unit.getDouble(metric) >= value;
050          case LESS_THAN_EQUALS:
051            return unit.getDouble(metric) <= value;
052          case LESS_THAN:
053            return unit.getDouble(metric) < value;
054        }
055        return false;
056      }
057    
058    }