/*
* Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* WSO2 Inc. licenses this file to you 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 org.wso2.carbon.device.mgt.core.operation.mgt.dao;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.wso2.carbon.device.mgt.core.config.datasource.DataSourceConfig;
import org.wso2.carbon.device.mgt.core.config.datasource.JNDILookupDefinition;
import org.wso2.carbon.device.mgt.core.dao.util.DeviceManagementDAOUtil;
import org.wso2.carbon.device.mgt.core.operation.mgt.dao.impl.*;
import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Hashtable;
import java.util.List;
public class OperationManagementDAOFactory {
private static DataSource dataSource;
private static final Log log = LogFactory.getLog(OperationManagementDAOFactory.class);
private static ThreadLocal<Connection> currentConnection = new ThreadLocal<Connection>();
public static OperationDAO getCommandOperationDAO() {
return new CommandOperationDAOImpl();
}
public static OperationDAO getConfigOperationDAO() {
return new ConfigOperationDAOImpl();
}
public static OperationDAO getProfileOperationDAO() {
return new ProfileOperationDAOImpl();
}
public static OperationMappingDAO getOperationMappingDAO() {
return new OperationMappingDAOImpl();
}
public static OperationDAO getOperationDAO() {
return new OperationDAOImpl();
}
public static void init(DataSource dtSource) {
dataSource = dtSource;
}
public static void init(DataSourceConfig config) {
dataSource = resolveDataSource(config);
}
public static void beginTransaction() throws OperationManagementDAOException {
try {
currentConnection.set(dataSource.getConnection());
} catch (SQLException e) {
throw new OperationManagementDAOException("Error occurred while retrieving datasource connection", e);
}
}
public static Connection getConnection() throws OperationManagementDAOException {
if (currentConnection.get() == null) {
try {
currentConnection.set(dataSource.getConnection());
} catch (SQLException e) {
throw new OperationManagementDAOException("Error occurred while retrieving data source connection",
e);
}
}
return currentConnection.get();
}
public static void closeConnection() throws OperationManagementDAOException {
Connection con = currentConnection.get();
try {
con.close();
} catch (SQLException e) {
log.error("Error occurred while close the connection");
}
currentConnection.remove();
}
public static void commitTransaction() throws OperationManagementDAOException {
try {
Connection conn = currentConnection.get();
if (conn != null) {
conn.commit();
} else {
if (log.isDebugEnabled()) {
log.debug("Datasource connection associated with the current thread is null, hence commit " +
"has not been attempted");
}
}
} catch (SQLException e) {
throw new OperationManagementDAOException("Error occurred while committing the transaction", e);
} finally {
closeConnection();
}
}
public static void rollbackTransaction() throws OperationManagementDAOException {
try {
Connection conn = currentConnection.get();
if (conn != null) {
conn.rollback();
} else {
if (log.isDebugEnabled()) {
log.debug("Datasource connection associated with the current thread is null, hence rollback " +
"has not been attempted");
}
}
} catch (SQLException e) {
throw new OperationManagementDAOException("Error occurred while rollbacking the transaction", e);
} finally {
closeConnection();
}
}
/**
* Resolve data source from the data source definition
*
* @param config data source configuration
* @return data source resolved from the data source definition
*/
private static DataSource resolveDataSource(DataSourceConfig config) {
DataSource dataSource = null;
if (config == null) {
throw new RuntimeException(
"Device Management Repository data source configuration " + "is null and " +
"thus, is not initialized");
}
JNDILookupDefinition jndiConfig = config.getJndiLookupDefinition();
if (jndiConfig != null) {
if (log.isDebugEnabled()) {
log.debug("Initializing Device Management Repository data source using the JNDI " +
"Lookup Definition");
}
List<JNDILookupDefinition.JNDIProperty> jndiPropertyList =
jndiConfig.getJndiProperties();
if (jndiPropertyList != null) {
Hashtable<Object, Object> jndiProperties = new Hashtable<Object, Object>();
for (JNDILookupDefinition.JNDIProperty prop : jndiPropertyList) {
jndiProperties.put(prop.getName(), prop.getValue());
}
dataSource = DeviceManagementDAOUtil
.lookupDataSource(jndiConfig.getJndiName(), jndiProperties);
} else {
dataSource =
DeviceManagementDAOUtil.lookupDataSource(jndiConfig.getJndiName(), null);
}
}
return dataSource;
}
public static DataSource getDataSource() {
return dataSource;
}
}