001/*
002 * Sonar, open source software quality management tool.
003 * Copyright (C) 2008-2012 SonarSource
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
021package org.sonar.squid.indexer;
022
023import org.apache.commons.lang.math.NumberUtils;
024import org.sonar.squid.api.Query;
025import org.sonar.squid.api.SourceCode;
026import org.sonar.squid.measures.Metric;
027import org.sonar.squid.measures.MetricDef;
028
029public class QueryByMeasure implements Query {
030
031  private final MetricDef metric;
032  private final Operator operator;
033  private final double value;
034
035  public enum Operator {
036    GREATER_THAN, EQUALS, GREATER_THAN_EQUALS, LESS_THAN, LESS_THAN_EQUALS
037  }
038
039  /**
040   * @deprecated use {@link #QueryByMeasure(MetricDef, Operator, double)} instead
041   */
042  @Deprecated
043  public QueryByMeasure(Metric metric, Operator operator, double value) {
044    this((MetricDef) metric, operator, value);
045  }
046
047  public QueryByMeasure(MetricDef metric, Operator operator, double value) {
048    this.metric = metric;
049    this.operator = operator;
050    this.value = value;
051  }
052
053  public boolean match(SourceCode unit) {
054    switch (operator) {
055      case EQUALS:
056        return NumberUtils.compare(unit.getDouble(metric), value)==0;
057      case GREATER_THAN:
058        return unit.getDouble(metric) > value;
059      case GREATER_THAN_EQUALS:
060        return unit.getDouble(metric) >= value;
061      case LESS_THAN_EQUALS:
062        return unit.getDouble(metric) <= value;
063      case LESS_THAN:
064        return unit.getDouble(metric) < value;
065      default:
066        throw new IllegalStateException("The operator value '" + operator + "' is unknown.");
067    }
068  }
069
070}