Java tutorial
/* * Vulcan Build Manager * Copyright (C) 2005-2012 Chris Eldredge * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 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 General Public License for more details. * * You should have received a copy of the GNU 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 net.sourceforge.vulcan.spring.jdbc; import java.sql.ResultSet; import java.sql.SQLException; import java.util.List; import javax.sql.DataSource; import net.sourceforge.vulcan.dto.BuildMessageDto; import net.sourceforge.vulcan.dto.BuildOutcomeQueryDto; import org.springframework.dao.DataAccessException; import org.springframework.jdbc.object.MappingSqlQuery; class BuildHistoryTopErrorsQuery extends MappingSqlQuery implements BuilderQuery { private static String SQL = "select msgs.message as message, count(msgs.message) as msg_count " + "from builds inner join project_names on builds.project_id = project_names.id inner join build_messages msgs on builds.id=msgs.build_id "; private final int maxResultCount; private Object[] parameterValues; public BuildHistoryTopErrorsQuery(DataSource dataSource, BuildOutcomeQueryDto query, int maxResultCount) { this.maxResultCount = maxResultCount; setDataSource(dataSource); HistoryQueryBuilder.buildQuery(SQL, query, this); compile(); } @Override public void setSql(String sql) { super.setSql(sql + " and msgs.message_type='E' group by message order by msg_count desc limit " + maxResultCount); } public List<BuildMessageDto> queryTopMessages() { return execute(parameterValues); } @Override @SuppressWarnings("unchecked") public List<BuildMessageDto> execute(Object[] params) throws DataAccessException { return super.execute(params); } public void setParameterValues(Object[] parameterValues) { this.parameterValues = parameterValues; } @Override protected BuildMessageDto mapRow(ResultSet rs, int rowNumber) throws SQLException { final BuildMessageDto dto = new BuildMessageDto(); dto.setCount(rs.getInt("msg_count")); dto.setMessage(rs.getString("message")); return dto; } }