ru.org.linux.topic.ArchiveDao.java Source code

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Here is the source code for ru.org.linux.topic.ArchiveDao.java

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/*
 * Copyright 1998-2012 Linux.org.ru
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package ru.org.linux.topic;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Repository;
import ru.org.linux.group.Group;
import ru.org.linux.section.Section;

import javax.sql.DataSource;
import java.io.Serializable;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;

@Repository
public class ArchiveDao {
    private JdbcTemplate jdbcTemplate;

    @Autowired
    public void setDataSource(DataSource dataSource) {
        jdbcTemplate = new JdbcTemplate(dataSource);
    }

    public List<ArchiveDTO> getArchiveDTO(Section section, Group group) {
        return getArchiveInternal(section, group, 0);
    }

    public List<ArchiveDTO> getArchiveDTO(Section section, int limit) {
        return getArchiveInternal(section, null, limit);
    }

    private List<ArchiveDTO> getArchiveInternal(final Section section, final Group group, int limit) {
        RowMapper<ArchiveDTO> mapper = new RowMapper<ArchiveDTO>() {
            @Override
            public ArchiveDTO mapRow(ResultSet rs, int rowNum) throws SQLException {
                ArchiveDTO dto = new ArchiveDTO();
                dto.setYear(rs.getInt("year"));
                dto.setMonth(rs.getInt("month"));
                dto.setCount(rs.getInt("c"));
                dto.setSection(section);
                dto.setGroup(group);
                return dto;
            }
        };

        if (limit > 0) {
            return jdbcTemplate.query("select year, month, c from monthly_stats where section=? and groupid is null"
                    + " order by year desc, month desc limit ?", mapper, section.getId(), limit);
        } else {
            if (group == null) {
                return jdbcTemplate
                        .query("select year, month, c from monthly_stats where section=? and groupid is null"
                                + " order by year, month", mapper, section.getId());
            } else {
                return jdbcTemplate.query(
                        "select year, month, c from monthly_stats where section=? and groupid=? order by year, month",
                        mapper, section.getId(), group.getId());
            }
        }
    }

    public static class ArchiveDTO implements Serializable {
        private int year;
        private int month;
        private int count;
        private Section section;
        private Group group;

        private static final long serialVersionUID = 5862774559965251295L;

        public int getYear() {
            return year;
        }

        public void setYear(int year) {
            this.year = year;
        }

        public int getMonth() {
            return month;
        }

        public void setMonth(int month) {
            this.month = month;
        }

        public int getCount() {
            return count;
        }

        public void setCount(int count) {
            this.count = count;
        }

        public Section getSection() {
            return section;
        }

        public void setSection(Section section) {
            this.section = section;
        }

        public Group getGroup() {
            return group;
        }

        public void setGroup(Group group) {
            this.group = group;
        }

        public String getLink() {
            if (group != null) {
                return group.getArchiveLink(year, month);
            }
            return section.getArchiveLink(year, month);
        }
    }
}