org.sonar.server.computation.qualityprofile.ActiveRulesHolderImpl.java Source code

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Here is the source code for org.sonar.server.computation.qualityprofile.ActiveRulesHolderImpl.java

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/*
 * SonarQube
 * Copyright (C) 2009-2016 SonarSource SA
 * mailto:contact AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.server.computation.qualityprofile;

import com.google.common.base.Optional;
import com.google.common.collect.ImmutableMap;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import org.sonar.api.rule.RuleKey;

import static com.google.common.base.Preconditions.checkState;
import static java.util.Objects.requireNonNull;

public class ActiveRulesHolderImpl implements ActiveRulesHolder {

    private Map<RuleKey, ActiveRule> activeRulesByKey = null;

    @Override
    public Optional<ActiveRule> get(RuleKey ruleKey) {
        checkState(activeRulesByKey != null, "Active rules have not been initialized yet");
        return Optional.fromNullable(activeRulesByKey.get(ruleKey));
    }

    public Collection<ActiveRule> getAll() {
        checkState(activeRulesByKey != null, "Active rules have not been initialized yet");
        return activeRulesByKey.values();
    }

    public void set(Collection<ActiveRule> activeRules) {
        requireNonNull(activeRules, "Active rules cannot be null");
        checkState(activeRulesByKey == null, "Active rules have already been initialized");

        Map<RuleKey, ActiveRule> temp = new HashMap<>();
        for (ActiveRule activeRule : activeRules) {
            ActiveRule previousValue = temp.put(activeRule.getRuleKey(), activeRule);
            if (previousValue != null) {
                throw new IllegalArgumentException(
                        "Active rule must not be declared multiple times: " + activeRule.getRuleKey());
            }
        }
        activeRulesByKey = ImmutableMap.copyOf(temp);
    }
}