org.sonar.core.review.ReviewDao.java Source code

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Here is the source code for org.sonar.core.review.ReviewDao.java

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/*
 * Sonar, open source software quality management tool.
 * Copyright (C) 2008-2012 SonarSource
 * mailto:contact AT sonarsource DOT com
 *
 * Sonar 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.
 *
 * Sonar 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 Sonar; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
 */
package org.sonar.core.review;

import com.google.common.base.Preconditions;
import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.collect.Collections2;
import org.apache.ibatis.session.SqlSession;
import org.sonar.api.BatchComponent;
import org.sonar.api.ServerComponent;
import org.sonar.core.persistence.MyBatis;

import javax.annotation.Nullable;

import java.util.Collection;

public class ReviewDao implements BatchComponent, ServerComponent {
    private final MyBatis mybatis;
    private final Cache<Long, Collection<ReviewDto>> cacheByResource;

    public ReviewDao(MyBatis mybatis) {
        this.mybatis = mybatis;
        this.cacheByResource = CacheBuilder.newBuilder().weakValues()
                .build(new CacheLoader<Long, Collection<ReviewDto>>() {
                    @Override
                    public Collection<ReviewDto> load(Long resourceId) {
                        return doSelectOpenByResourceId(resourceId);
                    }
                });
    }

    /**
     * @since 3.1
     */
    public ReviewDto findById(long reviewId) {
        SqlSession session = mybatis.openSession();
        try {
            ReviewMapper mapper = session.getMapper(ReviewMapper.class);
            return mapper.findById(reviewId);
        } finally {
            MyBatis.closeQuietly(session);
        }
    }

    public Collection<ReviewDto> selectOpenByResourceId(long resourceId,
            @Nullable Predicate<ReviewDto>... predicates) {
        Collection<ReviewDto> reviews = cacheByResource.getUnchecked(resourceId);
        if (!reviews.isEmpty() && predicates != null) {
            reviews = Collections2.filter(reviews, Predicates.and(predicates));
        }
        return reviews;
    }

    public Collection<ReviewDto> selectOnDeletedResources(long rootProjectId, long rootSnapshotId) {
        SqlSession session = mybatis.openSession();
        try {
            ReviewMapper mapper = session.getMapper(ReviewMapper.class);
            return mapper.selectOnDeletedResources(rootProjectId, rootSnapshotId);
        } finally {
            MyBatis.closeQuietly(session);
        }
    }

    private Collection<ReviewDto> doSelectOpenByResourceId(long resourceId) {
        SqlSession session = mybatis.openSession();
        try {
            ReviewMapper mapper = session.getMapper(ReviewMapper.class);
            return mapper.selectByResourceId(resourceId);
        } finally {
            MyBatis.closeQuietly(session);
        }
    }

    public ReviewDao update(Collection<ReviewDto> reviews) {
        Preconditions.checkNotNull(reviews);

        SqlSession session = mybatis.openBatchSession();
        try {
            ReviewMapper mapper = session.getMapper(ReviewMapper.class);
            for (ReviewDto review : reviews) {
                mapper.update(review);
            }
            session.commit();
            return this;

        } finally {
            MyBatis.closeQuietly(session);
        }
    }
}