Java tutorial
/** * Copyright 2016 Pinterest, Inc. * * 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 com.pinterest.arcee.db; import com.pinterest.arcee.bean.GroupBean; import com.pinterest.deployservice.bean.SetClause; import com.pinterest.arcee.dao.GroupInfoDAO; import com.pinterest.deployservice.db.SingleResultSetHandlerFactory; import org.apache.commons.dbcp.BasicDataSource; import org.apache.commons.dbutils.QueryRunner; import org.apache.commons.dbutils.ResultSetHandler; import org.apache.commons.dbutils.handlers.BeanHandler; import org.apache.commons.dbutils.handlers.BeanListHandler; import java.util.List; public class DBGroupInfoDAOImpl implements GroupInfoDAO { private static final String INSERT_GROUP_INFO = "INSERT INTO groups SET %s;"; private static final String UPDATE_GROUP_INFO = "UPDATE groups SET %s WHERE group_name=?;"; private static final String DELETE_GROUP_BY_NAME = "DELETE FROM groups WHERE group_name=?;"; private static final String GET_GROUP_INFO_BY_NAME = "SELECT * FROM groups WHERE group_name=?;"; private static final String GET_NEW_GROUP_INFO = "SELECT DISTINCT group_name FROM groups_and_envs WHERE group_name NOT IN (SELECT group_name FROM groups)"; private static final String GET_GROUP_NAMES = "SELECT DISTINCT group_name FROM groups LIMIT ?,?;"; private static final String GET_TO_UPDATE_GROUPS_NAME = "SELECT group_name FROM groups WHERE last_update<?"; private static final String GET_GROUP_INFO_BY_APP_NAME = "SELECT groups.* FROM groups INNER JOIN images ON groups.image_id=images.id WHERE images.app_name=?"; private static final String GET_GROUPNAMES_BY_HOSTID_AND_ASGSTATUS = "SELECT g.group_name FROM groups g INNER JOIN hosts h ON h.group_name = g.group_name WHERE h.host_id=? AND g.asg_status=?"; private static final String GET_GROUPNAMES_BY_ENVNAME_AND_ASGSTATUS = "SELECT g.group_name FROM groups g INNER JOIN (SELECT ge.group_name FROM groups_and_envs ge INNER JOIN environs e ON e.env_id = ge.env_id and e.env_name=?)" + " gee ON gee.group_name = g.group_name and g.asg_status=?;"; private static final String GET_GROUPS_BY_ENVNAME_AND_ASGSTATUS = "SELECT g.* FROM groups g INNER JOIN (SELECT ge.group_name FROM groups_and_envs ge INNER JOIN environs e ON e.env_id = ge.env_id and e.env_name=?)" + " gee ON gee.group_name = g.group_name and g.asg_status=?;"; private static final String GET_ENABLED_HEALTHCHECK_GROUP_NAMES = "SELECT DISTINCT group_name FROM groups WHERE healthcheck_state=1"; private BasicDataSource dataSource; public DBGroupInfoDAOImpl(BasicDataSource dataSource) { this.dataSource = dataSource; } @Override public void updateGroupInfo(String groupName, GroupBean bean) throws Exception { if (bean.getLast_update() == null) { bean.setLast_update(System.currentTimeMillis()); } SetClause setClause = bean.genSetClause(); String clause = String.format(UPDATE_GROUP_INFO, setClause.getClause()); setClause.addValue(groupName); new QueryRunner(dataSource).update(clause, setClause.getValueArray()); } @Override public void insertGroupInfo(GroupBean groupBean) throws Exception { if (groupBean.getLast_update() == null) { groupBean.setLast_update(System.currentTimeMillis()); } SetClause setClause = groupBean.genSetClause(); String clause = String.format(INSERT_GROUP_INFO, setClause.getClause()); new QueryRunner(dataSource).update(clause, setClause.getValueArray()); } @Override public GroupBean getGroupInfo(String groupName) throws Exception { ResultSetHandler<GroupBean> h = new BeanHandler<GroupBean>(GroupBean.class); return new QueryRunner(dataSource).query(GET_GROUP_INFO_BY_NAME, h, groupName); } @Override public void removeGroup(String groupName) throws Exception { new QueryRunner(dataSource).update(DELETE_GROUP_BY_NAME, groupName); } @Override public List<String> getExistingGroups(long pageIndex, int pageSize) throws Exception { return new QueryRunner(dataSource).query(GET_GROUP_NAMES, SingleResultSetHandlerFactory.<String>newListObjectHandler(), (pageIndex - 1) * pageSize, pageSize); } @Override public List<String> getToUpdateGroups(long after) throws Exception { return new QueryRunner(dataSource).query(GET_TO_UPDATE_GROUPS_NAME, SingleResultSetHandlerFactory.<String>newListObjectHandler(), after); } @Override public List<String> getNewGroupNames() throws Exception { return new QueryRunner(dataSource).query(GET_NEW_GROUP_INFO, SingleResultSetHandlerFactory.<String>newListObjectHandler()); } @Override public List<GroupBean> getGroupInfoByAppName(String appName) throws Exception { ResultSetHandler<List<GroupBean>> h = new BeanListHandler<GroupBean>(GroupBean.class); return new QueryRunner(dataSource).query(GET_GROUP_INFO_BY_APP_NAME, h, appName); } @Override public List<String> getGroupNamesByHostIdAndASGStatus(String hostId, String asgStatus) throws Exception { return new QueryRunner(dataSource).query(GET_GROUPNAMES_BY_HOSTID_AND_ASGSTATUS, SingleResultSetHandlerFactory.<String>newListObjectHandler(), hostId, asgStatus); } @Override public List<String> getGroupNamesByEnvNameAndASGStatus(String envName, String asgStatus) throws Exception { return new QueryRunner(dataSource).query(GET_GROUPNAMES_BY_ENVNAME_AND_ASGSTATUS, SingleResultSetHandlerFactory.<String>newListObjectHandler(), envName, asgStatus); } @Override public List<GroupBean> getGroupsByEnvNameAndASGStauts(String envName, String asgStatus) throws Exception { ResultSetHandler<List<GroupBean>> h = new BeanListHandler<GroupBean>(GroupBean.class); return new QueryRunner(dataSource).query(GET_GROUPS_BY_ENVNAME_AND_ASGSTATUS, h, envName, asgStatus); } @Override public List<String> getEnabledHealthCheckGroupNames() throws Exception { return new QueryRunner(dataSource).query(GET_ENABLED_HEALTHCHECK_GROUP_NAMES, SingleResultSetHandlerFactory.<String>newListObjectHandler()); } }