org.sonar.server.computation.step.FeedDebtModelStep.java Source code

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Here is the source code for org.sonar.server.computation.step.FeedDebtModelStep.java

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/*
 * SonarQube, open source software quality management tool.
 * Copyright (C) 2008-2014 SonarSource
 * mailto:contact AT sonarsource DOT com
 *
 * SonarQube 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.
 *
 * SonarQube 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.step;

import com.google.common.base.Function;
import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
import com.google.common.collect.FluentIterable;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import org.sonar.core.persistence.DbSession;
import org.sonar.core.technicaldebt.db.CharacteristicDto;
import org.sonar.server.computation.debt.Characteristic;
import org.sonar.server.computation.debt.MutableDebtModelHolder;
import org.sonar.server.db.DbClient;

/**
 * Populates the {@link org.sonar.server.computation.debt.DebtModelHolder}
 */
public class FeedDebtModelStep implements ComputationStep {

    private final DbClient dbClient;
    private final MutableDebtModelHolder mutableDebtModelHolder;

    public FeedDebtModelStep(DbClient dbClient, MutableDebtModelHolder mutableDebtModelHolder) {
        this.dbClient = dbClient;
        this.mutableDebtModelHolder = mutableDebtModelHolder;
    }

    @Override
    public void execute() {
        DbSession session = dbClient.openSession(false);
        try {
            feedDebtModel(session);
        } finally {
            session.close();
        }
    }

    private void feedDebtModel(DbSession session) {
        List<CharacteristicDto> characteristicDtos = dbClient.debtCharacteristicDao()
                .selectEnabledCharacteristics(session);
        Map<Integer, CharacteristicDto> rootCharacteristicsById = FluentIterable.from(characteristicDtos)
                .filter(IsRootPredicate.INSTANCE).uniqueIndex(CharacteristicDtoToId.INSTANCE);

        for (Map.Entry<Integer, Collection<CharacteristicDto>> entry : FluentIterable.from(characteristicDtos)
                .filter(Predicates.not(IsRootPredicate.INSTANCE)).index(CharacteristicDtoToParentId.INSTANCE)
                .asMap().entrySet()) {
            mutableDebtModelHolder.addCharacteristics(toCharacteristic(rootCharacteristicsById.get(entry.getKey())),
                    FluentIterable.from(entry.getValue()).transform(CharacteristicDtoToCharacteristic.INSTANCE));
        }
    }

    private static Characteristic toCharacteristic(CharacteristicDto dto) {
        return new Characteristic(dto.getId(), dto.getKey());
    }

    private enum CharacteristicDtoToId implements Function<CharacteristicDto, Integer> {
        INSTANCE;

        @Nullable
        @Override
        public Integer apply(@Nonnull CharacteristicDto characteristicDto) {
            return characteristicDto.getId();
        }
    }

    private enum CharacteristicDtoToCharacteristic implements Function<CharacteristicDto, Characteristic> {
        INSTANCE;

        @Nullable
        @Override
        public Characteristic apply(@Nonnull CharacteristicDto characteristicDto) {
            return toCharacteristic(characteristicDto);
        }
    }

    private enum CharacteristicDtoToParentId implements Function<CharacteristicDto, Integer> {
        INSTANCE;

        @Nullable
        @Override
        public Integer apply(@Nonnull CharacteristicDto characteristicDto) {
            Integer parentId = characteristicDto.getParentId();
            return parentId == null ? characteristicDto.getId() : parentId;
        }
    }

    private enum IsRootPredicate implements Predicate<CharacteristicDto> {
        INSTANCE;

        @Override
        public boolean apply(@Nonnull CharacteristicDto characteristicDto) {
            return characteristicDto.getParentId() == null;
        }
    }

    @Override
    public String getDescription() {
        return "Feed technical debt model";
    }
}