001/*
002 * SonarQube, open source software quality management tool.
003 * Copyright (C) 2008-2013 SonarSource
004 * mailto:contact AT sonarsource DOT com
005 *
006 * SonarQube 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 * SonarQube 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 License
017 * along with this program; if not, write to the Free Software Foundation,
018 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
019 */
020package org.sonar.api.batch.rule.internal;
021
022import com.google.common.collect.Maps;
023import org.sonar.api.batch.rule.ActiveRules;
024import org.sonar.api.rule.RuleKey;
025
026import java.util.HashMap;
027import java.util.Map;
028
029/**
030 * Builds instances of {@link org.sonar.api.batch.rule.ActiveRules}.
031 * <b>For unit testing and internal use only</b>.
032 * @since 4.2
033 */
034public class ActiveRulesBuilder {
035
036  private final Map<RuleKey, NewActiveRule> map = Maps.newHashMap();
037
038  public NewActiveRule activate(RuleKey ruleKey) {
039    if (map.containsKey(ruleKey)) {
040      throw new IllegalStateException(String.format("Rule '%s' is already activated", ruleKey));
041    }
042    NewActiveRule newActiveRule = new NewActiveRule(ruleKey);
043    map.put(ruleKey, newActiveRule);
044    return newActiveRule;
045  }
046
047  public ActiveRules build() {
048    return new DefaultActiveRules(map.values());
049  }
050}