eu.europa.esig.dss.web.dao.PreferencesJdbcDao.java Source code

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Here is the source code for eu.europa.esig.dss.web.dao.PreferencesJdbcDao.java

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/**
 * DSS - Digital Signature Services
 * Copyright (C) 2015 European Commission, provided under the CEF programme
 *
 * This file is part of the "DSS - Digital Signature Services" project.
 *
 * This library 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 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
package eu.europa.esig.dss.web.dao;

import eu.europa.esig.dss.web.model.Preference;
import eu.europa.esig.dss.web.model.PreferenceKey;
import org.springframework.beans.factory.annotation.Required;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
import org.springframework.jdbc.core.namedparam.SqlParameterSource;

import javax.sql.DataSource;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 
 * TODO
 * 
 *
 *
 * 
 *
 *
 */
public class PreferencesJdbcDao implements PreferencesDao {

    /**
     * 
     * @see RowMapper
     * 
     *
     *
     * 
     *
     *
     */
    private static class PreferenceRowMapper implements RowMapper<Preference> {
        /*
         * (non-Javadoc)
         * 
         * @see org.springframework.jdbc.core.RowMapper#mapRow(java.sql.ResultSet, int)
         */
        @Override
        public Preference mapRow(ResultSet rs, int row) throws SQLException {
            final Preference preference = new Preference();
            preference.setKey(rs.getString(COLUMN_KEY));
            preference.setValue(rs.getString(COLUMN_VALUE));
            return preference;
        }
    }

    private static final String TABLE_NAME = "PREFERENCES";
    private static final String COLUMN_KEY = "PREF_KEY";
    private static final String COLUMN_VALUE = "PREF_VALUE";

    /**
     * @see JdbcTemplate
     */
    private JdbcTemplate jdbcTemplate;
    /**
     * @see NamedParameterJdbcTemplate
     */
    private NamedParameterJdbcTemplate namedParameterJdbcTemplate;

    /*
     * (non-Javadoc)
     * 
     * @see eu.europa.esig.dss.web.dao.GenericDao#get(java.lang.Object)
     */
    @Override
    public Preference get(PreferenceKey id) {
        final String query = "select * from " + TABLE_NAME + " where " + COLUMN_KEY + " = :key";
        final SqlParameterSource namedParameters = new MapSqlParameterSource("key", id);
        return namedParameterJdbcTemplate.queryForObject(query, namedParameters, new PreferenceRowMapper());
    }

    /*
     * (non-Javadoc)
     * 
     * @see eu.europa.esig.dss.web.dao.GenericDao#getAll()
     */
    @Override
    public List<Preference> getAll() {
        final String query = "select * from " + TABLE_NAME;
        return jdbcTemplate.query(query, new PreferenceRowMapper());
    }

    /**
     * Set the datasource
     * 
     * @param dataSource The datasource
     */
    @Required
    public void setDataSource(final DataSource dataSource) {
        this.jdbcTemplate = new JdbcTemplate(dataSource);
        this.namedParameterJdbcTemplate = new NamedParameterJdbcTemplate(dataSource);
    }

    /*
     * (non-Javadoc)
     * 
     * @see eu.europa.esig.dss.web.dao.GenericDao#update(java.lang.Object)
     */
    @Override
    public void update(Preference entity) {
        final String query = "update " + TABLE_NAME + " set " + COLUMN_VALUE + " = :value where " + COLUMN_KEY
                + " = :key";
        final Map<String, Object> parameters = new HashMap<String, Object>();
        parameters.put("key", entity.getKey());
        parameters.put("value", entity.getValue());
        final SqlParameterSource namedParameters = new MapSqlParameterSource(parameters);
        namedParameterJdbcTemplate.update(query, namedParameters);
    }

}