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.HealthCheckErrorBean; import com.pinterest.arcee.dao.HealthCheckErrorDAO; import com.pinterest.deployservice.bean.SetClause; 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; public class DBHealthCheckErrorDAOImpl implements HealthCheckErrorDAO { private static String INSERT_HEALTH_CHECK_ERROR = "INSERT INTO healthcheck_errors SET %s"; private static String DELETE_HRALTH_CHECK_ERROR_BY_ID = "DELETE FROM healthcheck_errors WHERE id=?"; private static String GET_HEALTH_CHECK_ERROR_BY_ID = "SELECT * FROM healthcheck_errors WHERE id=?"; private BasicDataSource dataSource; public DBHealthCheckErrorDAOImpl(BasicDataSource dataSource) { this.dataSource = dataSource; } @Override public void insertHealthCheckError(HealthCheckErrorBean healthCheckErrorBean) throws Exception { SetClause setClause = healthCheckErrorBean.genSetClause(); String clause = String.format(INSERT_HEALTH_CHECK_ERROR, setClause.getClause()); new QueryRunner(dataSource).update(clause, setClause.getValueArray()); } @Override public void removeHealthCheckErrorById(String id) throws Exception { new QueryRunner(dataSource).update(DELETE_HRALTH_CHECK_ERROR_BY_ID, id); } @Override public HealthCheckErrorBean getHealthCheckErrorById(String id) throws Exception { ResultSetHandler<HealthCheckErrorBean> h = new BeanHandler<HealthCheckErrorBean>( HealthCheckErrorBean.class); return new QueryRunner(dataSource).query(GET_HEALTH_CHECK_ERROR_BY_ID, h, id); } }