| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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.apache.nifi.registry.db.migration; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.nifi.registry.properties.NiFiRegistryProperties; |
| import org.h2.jdbcx.JdbcConnectionPool; |
| |
| import javax.sql.DataSource; |
| import java.io.File; |
| |
| /** |
| * NOTE: This DataSource factory was used in the original 0.1.0 release and remains to migrate data from the old database. |
| * This class is intentionally not a Spring bean, and will be used manually in the custom Flyway migration. |
| */ |
| public class LegacyDataSourceFactory { |
| |
| private static final String DB_USERNAME_PASSWORD = "nifireg"; |
| private static final int MAX_CONNECTIONS = 5; |
| |
| // database file name |
| private static final String DATABASE_FILE_NAME = "nifi-registry"; |
| |
| private final NiFiRegistryProperties properties; |
| |
| private JdbcConnectionPool connectionPool; |
| |
| public LegacyDataSourceFactory(final NiFiRegistryProperties properties) { |
| this.properties = properties; |
| } |
| |
| public DataSource getDataSource() { |
| if (connectionPool == null) { |
| final String databaseUrl = getDatabaseUrl(properties); |
| connectionPool = JdbcConnectionPool.create(databaseUrl, DB_USERNAME_PASSWORD, DB_USERNAME_PASSWORD); |
| connectionPool.setMaxConnections(MAX_CONNECTIONS); |
| } |
| |
| return connectionPool; |
| } |
| |
| public static String getDatabaseUrl(final NiFiRegistryProperties properties) { |
| // locate the repository directory |
| final String repositoryDirectoryPath = properties.getLegacyDatabaseDirectory(); |
| |
| // ensure the repository directory is specified |
| if (repositoryDirectoryPath == null) { |
| throw new NullPointerException("Database directory must be specified."); |
| } |
| |
| // create a handle to the repository directory |
| final File repositoryDirectory = new File(repositoryDirectoryPath); |
| |
| // get a handle to the database file |
| final File databaseFile = new File(repositoryDirectory, DATABASE_FILE_NAME); |
| |
| // format the database url |
| String databaseUrl = "jdbc:h2:" + databaseFile + ";AUTOCOMMIT=OFF;DB_CLOSE_ON_EXIT=FALSE;LOCK_MODE=3"; |
| String databaseUrlAppend = properties.getLegacyDatabaseUrlAppend(); |
| if (StringUtils.isNotBlank(databaseUrlAppend)) { |
| databaseUrl += databaseUrlAppend; |
| } |
| |
| return databaseUrl; |
| } |
| |
| } |