forked from community/device-mgt-core
nishadi
7 years ago
parent
5096654658
commit
35e4174211
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/*
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* Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
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*
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* WSO2 Inc. licenses this file to you under the Apache License,
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* Version 2.0 (the "License"); you may not use this file except
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* in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*
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*/
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package org.wso2.carbon.device.application.mgt.core.dao.common;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.wso2.carbon.device.application.mgt.common.exception.UnsupportedDatabaseEngineException;
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import org.wso2.carbon.device.application.mgt.core.config.ConfigurationManager;
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import org.wso2.carbon.device.application.mgt.core.dao.*;
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import org.wso2.carbon.device.application.mgt.core.dao.impl.Comment.CommentDAOImpl;
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import org.wso2.carbon.device.application.mgt.core.dao.impl.application.GenericApplicationDAOImpl;
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import org.wso2.carbon.device.application.mgt.core.dao.impl.application.release.GenericApplicationReleaseDAOImpl;
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import org.wso2.carbon.device.application.mgt.core.dao.impl.application.release.OracleApplicationDAOImpl;
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import org.wso2.carbon.device.application.mgt.core.dao.impl.lifecyclestate.GenericLifecycleStateImpl;
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import org.wso2.carbon.device.application.mgt.core.dao.impl.subscription.GenericSubscriptionDAOImpl;
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import org.wso2.carbon.device.application.mgt.core.dao.impl.visibility.GenericVisibilityDAOImpl;
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import org.wso2.carbon.device.application.mgt.core.exception.ApplicationManagementDAOException;
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import org.wso2.carbon.device.application.mgt.core.util.ApplicationMgtDatabaseCreator;
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import org.wso2.carbon.device.application.mgt.core.util.ConnectionManagerUtil;
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import org.wso2.carbon.device.application.mgt.core.util.Constants;
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import org.wso2.carbon.device.mgt.core.config.datasource.DataSourceConfig;
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import org.wso2.carbon.device.mgt.core.dao.DeviceTypeDAO;
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import org.wso2.carbon.device.mgt.core.dao.impl.DeviceTypeDAOImpl;
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import org.wso2.carbon.utils.dbcreator.DatabaseCreator;
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import javax.sql.DataSource;
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import java.sql.SQLException;
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import static org.wso2.carbon.device.mgt.core.util.DeviceManagerUtil.resolveDataSource;
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/**
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* This class intends to act as the primary entity that hides all DAO instantiation related complexities and logic so
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* that the business objection handling layer doesn't need to be aware of the same providing seamless plug-ability of
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* different data sources, connection acquisition mechanisms as well as different forms of DAO implementations to the
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* high-level implementations that require Application management related metadata persistence.
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*/
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public class ApplicationManagementDAOFactory {
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private static String databaseEngine;
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private static DataSource dataSource;
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private static final Log log = LogFactory.getLog(ApplicationManagementDAOFactory.class);
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public static void init(String datasourceName) {
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ConnectionManagerUtil.resolveDataSource(datasourceName);
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databaseEngine = ConnectionManagerUtil.getDatabaseType();
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}
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public static void init(DataSource dtSource){
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dataSource=dtSource;
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try {
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databaseEngine = dataSource.getConnection().getMetaData().getDatabaseProductName();
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} catch (SQLException e) {
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log.error("Error occurred while retrieving config.datasource connection", e);
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}
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}
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public static void init(DataSourceConfig config) {
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dataSource = resolveDataSource(config);
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try {
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databaseEngine = dataSource.getConnection().getMetaData().getDatabaseProductName();
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} catch (SQLException e) {
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log.error("Error occurred while retrieving config.datasource connection", e);
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}
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}
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public static ApplicationDAO getApplicationDAO() {
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if (databaseEngine != null) {
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switch (databaseEngine) {
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case Constants.DataBaseTypes.DB_TYPE_H2:
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case Constants.DataBaseTypes.DB_TYPE_MYSQL:
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case Constants.DataBaseTypes.DB_TYPE_POSTGRESQL:
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return new GenericApplicationDAOImpl();
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case Constants.DataBaseTypes.DB_TYPE_ORACLE:
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return new OracleApplicationDAOImpl();
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default:
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throw new UnsupportedDatabaseEngineException("Unsupported database engine : " + databaseEngine);
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}
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}
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throw new IllegalStateException("Database engine has not initialized properly.");
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}
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public static LifecycleStateDAO getLifecycleStateDAO() {
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if (databaseEngine != null) {
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switch (databaseEngine) {
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case Constants.DataBaseTypes.DB_TYPE_H2:
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case Constants.DataBaseTypes.DB_TYPE_MYSQL:
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case Constants.DataBaseTypes.DB_TYPE_POSTGRESQL:
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case Constants.DataBaseTypes.DB_TYPE_ORACLE:
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return new GenericLifecycleStateImpl();
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default:
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throw new UnsupportedDatabaseEngineException("Unsupported database engine : " + databaseEngine);
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}
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}
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throw new IllegalStateException("Database engine has not initialized properly.");
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}
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/**
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* To get the instance of ApplicationReleaseDAOImplementation of the particular database engine.
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*
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* @return specific ApplicationReleaseDAOImplementation
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*/
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public static ApplicationReleaseDAO getApplicationReleaseDAO() {
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if (databaseEngine != null) {
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switch (databaseEngine) {
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case Constants.DataBaseTypes.DB_TYPE_H2:
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case Constants.DataBaseTypes.DB_TYPE_MYSQL:
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case Constants.DataBaseTypes.DB_TYPE_POSTGRESQL:
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case Constants.DataBaseTypes.DB_TYPE_ORACLE:
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return new GenericApplicationReleaseDAOImpl();
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default:
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throw new UnsupportedDatabaseEngineException("Unsupported database engine : " + databaseEngine);
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}
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}
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throw new IllegalStateException("Database engine has not initialized properly.");
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}
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/**
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* To get the instance of VisibilityDAOImplementation of the particular database engine.
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*
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* @return specific VisibilityDAOImplementation
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*/
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public static VisibilityDAO getVisibilityDAO() {
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if (databaseEngine != null) {
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switch (databaseEngine) {
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case Constants.DataBaseTypes.DB_TYPE_H2:
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case Constants.DataBaseTypes.DB_TYPE_MYSQL:
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return new GenericVisibilityDAOImpl();
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default:
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throw new UnsupportedDatabaseEngineException("Unsupported database engine : " + databaseEngine);
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}
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}
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throw new IllegalStateException("Database engine has not initialized properly.");
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}
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/**
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* To get the instance of SubscriptionDAOImplementation of the particular database engine.
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*
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* @return GenericSubscriptionDAOImpl
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*/
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public static SubscriptionDAO getSubscriptionDAO() {
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if (databaseEngine != null) {
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switch (databaseEngine) {
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case Constants.DataBaseTypes.DB_TYPE_H2:
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case Constants.DataBaseTypes.DB_TYPE_MYSQL:
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case Constants.DataBaseTypes.DB_TYPE_POSTGRESQL:
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return new GenericSubscriptionDAOImpl();
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default:
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throw new UnsupportedDatabaseEngineException("Unsupported database engine : " + databaseEngine);
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}
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}
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throw new IllegalStateException("Database engine has not initialized properly.");
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}
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/**
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* To get the instance of DeviceTypeDAOImpl of the particular database engine.
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*
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* @return DeviceTypeDAOImpl
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*/
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public static DeviceTypeDAO getDeviceTypeDAO() {
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if (databaseEngine != null) {
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switch (databaseEngine) {
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case Constants.DataBaseTypes.DB_TYPE_H2:
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case Constants.DataBaseTypes.DB_TYPE_MYSQL:
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case Constants.DataBaseTypes.DB_TYPE_POSTGRESQL:
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return new DeviceTypeDAOImpl();
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default:
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throw new UnsupportedDatabaseEngineException("Unsupported database engine : " + databaseEngine);
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}
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}
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throw new IllegalStateException("Database engine has not initialized properly.");
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}
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/**
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* To get the instance of LifecycleDAOImplementation of the particular database engine.
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*
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* @return GenericLifecycleDAOImpl
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*/
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public static LifecycleStateDAO getLifecycleDAO() {
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if (databaseEngine != null) {
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switch (databaseEngine) {
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case Constants.DataBaseTypes.DB_TYPE_H2:
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case Constants.DataBaseTypes.DB_TYPE_MYSQL:
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case Constants.DataBaseTypes.DB_TYPE_POSTGRESQL:
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return new GenericLifecycleStateImpl();
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default:
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throw new UnsupportedDatabaseEngineException("Unsupported database engine : " + databaseEngine);
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}
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}
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throw new IllegalStateException("Database engine has not initialized properly.");
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}
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/**
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* This method initializes the databases by creating the database.
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*
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* @throws ApplicationManagementDAOException Exceptions thrown during the creation of the tables
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*/
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public static void initDatabases() throws ApplicationManagementDAOException {
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String dataSourceName = ConfigurationManager.getInstance().getConfiguration().getDatasourceName();
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String validationQuery = "SELECT * from APPM_PLATFORM";
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try {
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if (System.getProperty("setup") == null) {
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if (log.isDebugEnabled()) {
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log.debug("Application Management Database schema initialization check was skipped since "
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+ "\'setup\' variable was not given during startup");
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}
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} else {
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DatabaseCreator databaseCreator = new ApplicationMgtDatabaseCreator(dataSourceName);
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if (!databaseCreator.isDatabaseStructureCreated(validationQuery)) {
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databaseCreator.createRegistryDatabase();
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log.info("Application Management tables are created in the database");
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} else {
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log.info("Application Management Database structure already exists. Not creating the database.");
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}
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}
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} catch (SQLException e) {
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throw new ApplicationManagementDAOException(
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"Error while creating application-mgt database during the " + "startup ", e);
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} catch (Exception e) {
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throw new ApplicationManagementDAOException(
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"Error while creating application-mgt database in the " + "startup ", e);
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}
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}
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public static CommentDAO getCommentDAO() {
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if (databaseEngine != null) {
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switch (databaseEngine) {
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case Constants.DataBaseTypes.DB_TYPE_H2:
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case Constants.DataBaseTypes.DB_TYPE_MYSQL:
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case Constants.DataBaseTypes.DB_TYPE_POSTGRESQL:
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return new CommentDAOImpl();
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default:
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throw new UnsupportedDatabaseEngineException("Unsupported database engine : " + databaseEngine);
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}
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}
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throw new IllegalStateException("Database engine has not initialized properly.");
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}
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}
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