sreejasahithi commented on code in PR #8072: URL: https://github.com/apache/ozone/pull/8072#discussion_r2027526779
########## hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/containerlog/parser/ContainerDatanodeDatabase.java: ########## @@ -0,0 +1,220 @@ +/* + * 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.hadoop.ozone.containerlog.parser; + +import java.io.FileNotFoundException; +import java.io.InputStream; +import java.sql.Connection; +import java.sql.DriverManager; +import java.sql.PreparedStatement; +import java.sql.ResultSet; +import java.sql.SQLException; +import java.sql.Statement; +import java.util.List; +import java.util.Map; +import java.util.Properties; +import java.util.stream.Collectors; +import org.sqlite.SQLiteConfig; + +/** + * Datanode container Database. + */ + +public class ContainerDatanodeDatabase { + + private static Map<String, String> queries; + + static { + loadProperties(); + } + + private static void loadProperties() { + Properties props = new Properties(); + try (InputStream inputStream = ContainerDatanodeDatabase.class.getClassLoader() + .getResourceAsStream(DBConsts.PROPS_FILE)) { + + if (inputStream != null) { + props.load(inputStream); + queries = props.entrySet().stream() + .collect(Collectors.toMap( + e -> e.getKey().toString(), + e -> e.getValue().toString() + )); + } else { + throw new FileNotFoundException("Property file '" + DBConsts.PROPS_FILE + "' not found."); + } + } catch (Exception e) { + e.printStackTrace(); + } + } + + private static Connection getConnection() throws Exception { + Class.forName(DBConsts.DRIVER); + + SQLiteConfig config = new SQLiteConfig(); + + config.setJournalMode(SQLiteConfig.JournalMode.OFF); + config.setCacheSize(DBConsts.CACHE_SIZE); + config.setLockingMode(SQLiteConfig.LockingMode.EXCLUSIVE); + config.setSynchronous(SQLiteConfig.SynchronousMode.OFF); + config.setTempStore(SQLiteConfig.TempStore.MEMORY); + + return DriverManager.getConnection(DBConsts.CONNECTION_PREFIX + DBConsts.DATABASE_NAME, config.toProperties()); + } + + public void createDatanodeContainerLogTable() { + String createTableSQL = queries.get("CREATE_DATANODE_CONTAINER_LOG_TABLE"); + try (Connection connection = getConnection(); + Statement dropStmt = connection.createStatement(); + Statement createStmt = connection.createStatement()) { + dropTable(DBConsts.DATANODE_CONTAINER_LOG_TABLE_NAME,dropStmt); + createStmt.execute(createTableSQL); + createDatanodeContainerIndex(createStmt); + } catch (SQLException e) { + System.err.println("Error while creating the table: " + e.getMessage()); + } catch (Exception e) { + throw new RuntimeException(e); + } + } + + private void createContainerLogTable() { + String createTableSQL = queries.get("CREATE_CONTAINER_LOG_TABLE"); + try (Connection connection = getConnection(); + Statement dropStmt = connection.createStatement(); + Statement createStmt = connection.createStatement()) { + dropTable(DBConsts.CONTAINER_LOG_TABLE_NAME,dropStmt); + createStmt.execute(createTableSQL); + } catch (SQLException e) { + System.err.println("Error while creating the table: " + e.getMessage()); + } catch (Exception e) { + throw new RuntimeException(e); + } + } + + public void insertContainerDatanodeData(String key, List<DatanodeContainerInfo> transitionList) { + String[] parts = key.split("#"); + if (parts.length != 2) { + System.err.println("Invalid key format: " + key); + return; + } + + long containerId = Long.parseLong(parts[0]); + long datanodeId = Long.parseLong(parts[1]); + + String insertSQL = queries.get("INSERT_DATANODE_CONTAINER_LOG"); + + try (Connection connection = getConnection(); + PreparedStatement preparedStatement = connection.prepareStatement(insertSQL)) { Review Comment: preparedStatement will automatically be released once the block gets executed. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
