org.sonar.db.source.FileSourceDao.java Source code

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Here is the source code for org.sonar.db.source.FileSourceDao.java

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/*
 * SonarQube
 * Copyright (C) 2009-2017 SonarSource SA
 * mailto:info 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.db.source;

import com.google.common.base.Splitter;
import java.io.Reader;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Collections;
import java.util.List;
import java.util.function.Function;
import javax.annotation.CheckForNull;
import org.apache.commons.dbutils.DbUtils;
import org.apache.commons.io.IOUtils;
import org.sonar.db.Dao;
import org.sonar.db.DbSession;
import org.sonar.db.source.FileSourceDto.Type;

public class FileSourceDao implements Dao {

    private static final Splitter END_OF_LINE_SPLITTER = Splitter.on('\n');

    @CheckForNull
    public FileSourceDto selectSourceByFileUuid(DbSession session, String fileUuid) {
        return mapper(session).select(fileUuid, Type.SOURCE);
    }

    @CheckForNull
    public FileSourceDto selectTest(DbSession dbSession, String fileUuid) {
        return mapper(dbSession).select(fileUuid, Type.TEST);
    }

    @CheckForNull
    public List<String> selectLineHashes(DbSession dbSession, String fileUuid) {
        Connection connection = dbSession.getConnection();
        PreparedStatement pstmt = null;
        ResultSet rs = null;
        try {
            pstmt = connection
                    .prepareStatement("SELECT line_hashes FROM file_sources WHERE file_uuid=? AND data_type=?");
            pstmt.setString(1, fileUuid);
            pstmt.setString(2, Type.SOURCE);
            rs = pstmt.executeQuery();
            if (rs.next()) {
                String string = rs.getString(1);
                if (string == null) {
                    return Collections.emptyList();
                }
                return END_OF_LINE_SPLITTER.splitToList(string);
            }
            return null;
        } catch (SQLException e) {
            throw new IllegalStateException("Fail to read FILE_SOURCES.LINE_HASHES of file " + fileUuid, e);
        } finally {
            DbUtils.closeQuietly(connection, pstmt, rs);
        }
    }

    public <T> void readLineHashesStream(DbSession dbSession, String fileUuid, Function<Reader, T> function) {
        Connection connection = dbSession.getConnection();
        PreparedStatement pstmt = null;
        ResultSet rs = null;
        Reader reader = null;
        try {
            pstmt = connection
                    .prepareStatement("SELECT line_hashes FROM file_sources WHERE file_uuid=? AND data_type=?");
            pstmt.setString(1, fileUuid);
            pstmt.setString(2, Type.SOURCE);
            rs = pstmt.executeQuery();
            if (rs.next()) {
                reader = rs.getCharacterStream(1);
                if (reader != null) {
                    function.apply(reader);
                }
            }
        } catch (SQLException e) {
            throw new IllegalStateException("Fail to read FILE_SOURCES.LINE_HASHES of file " + fileUuid, e);
        } finally {
            IOUtils.closeQuietly(reader);
            DbUtils.closeQuietly(connection, pstmt, rs);
        }
    }

    public void insert(DbSession session, FileSourceDto dto) {
        mapper(session).insert(dto);
    }

    public void update(DbSession session, FileSourceDto dto) {
        mapper(session).update(dto);
    }

    private static FileSourceMapper mapper(DbSession session) {
        return session.getMapper(FileSourceMapper.class);
    }
}