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removed unneeded idb init code and moved sessions reset query to query.prop

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This commit is contained in:
Rohan Sircar 2019-11-21 23:39:27 +05:30
parent 0ecfda9980
commit e2e2428410
2 changed files with 7 additions and 106 deletions
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110
chatto/src/main/java/org/ros/chatto/service/DBInitializerService.java
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@ -3,26 +3,17 @@ package org.ros.chatto.service;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.transaction.Transactional;
import org.hibernate.Session;
import org.ros.chatto.model.ApplicationStatus;
import org.ros.chatto.model.UserSession;
import org.ros.chatto.repository.UserSessionRepository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.event.ApplicationReadyEvent;
import org.springframework.context.annotation.PropertySource;
@ -37,77 +28,34 @@ import org.springframework.stereotype.Service;
public class DBInitializerService {
@Value("${spring.datasource.url}")
private String url;
@Value("${spring.datasource.username}")
private String userName;
@Value("${spring.datasource.password}")
private String password;
@Value("${database-name}")
private String dbName;
@Value("${num-tables}")
private String numTablesQuery;
@Value("${test.bindAddress}")
private String bindAddress;
private Connection connection;
@Autowired
private UserSessionRepository userSessionRepository;
@Value("${reset-sessions}")
private String resetSessionsQuery;
private final Logger logger = LoggerFactory.getLogger(DBInitializerService.class);
@PersistenceContext
private EntityManager entityManager;
public void connectDB() throws SQLException {
connection = DriverManager.getConnection(url, userName, password);
}
public int getNumTables() throws SQLException {
PreparedStatement preparedStatement = connection.prepareStatement(numTablesQuery);
// preparedStatement.get
preparedStatement.setString(1, dbName);
ResultSet resultSet = preparedStatement.executeQuery();
// while(resultSet.next())
// {
// System.out.println(resultSet.get);
// }
resultSet.next();
int numTables = resultSet.getInt("num_tables");
// System.out.println(numTables);
return numTables;
}
public int getNumTables(Connection connection) throws SQLException {
PreparedStatement preparedStatement = connection.prepareStatement(numTablesQuery);
// preparedStatement.get
preparedStatement.setString(1, dbName);
ResultSet resultSet = preparedStatement.executeQuery();
// while(resultSet.next())
// {
// System.out.println(resultSet.get);
// }
resultSet.next();
int numTables = resultSet.getInt("num_tables");
// System.out.println(numTables);
return numTables;
}
@EventListener(ApplicationReadyEvent.class)
@Transactional
public void doSomethingAfterStartup() throws SQLException, IOException {
// setProperties();
// connectDB();
logger.info("Application Started - running initializer service");
// System.out.println("Checking database and application state");
Session session = entityManager.unwrap(Session.class);
@ -123,25 +71,10 @@ public class DBInitializerService {
}
});
// if (getNumTables() == 0) {
// logger.info("Database is empty. Populating tables and roles");
// populateDB();
// }
// closeConnection();
session.doWork(connection -> {
logger.info("Resetting all user sessions");
resetAllUserSessions(connection);
});
resetAllUserSessions(userSessionRepository.findAll());
}
private void populateDB() throws SQLException, IOException {
ScriptUtils.executeSqlScript(connection,
new EncodedResource(new ClassPathResource("scheme.sql"), StandardCharsets.UTF_8));
ScriptUtils.executeSqlScript(connection,
new EncodedResource(new ClassPathResource("datae.sql"), StandardCharsets.UTF_8));
}
private void populateDB(Connection connection) throws SQLException, IOException {
@ -152,43 +85,10 @@ public class DBInitializerService {
}
private void populateTables() {
ScriptUtils.executeSqlScript(connection,
new EncodedResource(new ClassPathResource("scheme.sql"), StandardCharsets.UTF_8));
}
private void populateRoles() {
ScriptUtils.executeSqlScript(connection,
new EncodedResource(new ClassPathResource("datae.sql"), StandardCharsets.UTF_8));
}
Map<String, Boolean> listToMap(List<ApplicationStatus> applicationStatusList) {
Map<String, Boolean> statusMap = new HashMap<>();
for (ApplicationStatus applicationStatus : applicationStatusList) {
statusMap.put(applicationStatus.getName(), applicationStatus.isDone());
}
return statusMap;
}
public void closeConnection() throws SQLException {
connection.close();
}
private void resetAllUserSessions(List<UserSession> userSessionsList) {
List<UserSession> userSessionsResetList = userSessionsList.stream().map(us -> {
us.setNumSessions(0);
us.setOnline(false);
return us;
}).collect(Collectors.toList());
userSessionRepository.saveAll(userSessionsResetList);
}
private void resetAllUserSessions(Connection connection) throws SQLException
{
String sql = "update user_sessions set online=0, num_sessions=0";
PreparedStatement preparedStatement = connection.prepareStatement(sql);
PreparedStatement preparedStatement = connection.prepareStatement(resetSessionsQuery);
preparedStatement.executeUpdate();
}

3
chatto/src/main/resources/queries.properties
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@ -1,2 +1,3 @@
num-tables = SELECT COUNT(*) as num_tables FROM information_schema.tables WHERE table_schema = ? and TABLE_TYPE='BASE TABLE'
num-tables = SELECT COUNT(*) as num_tables FROM information_schema.tables WHERE table_schema = ? and TABLE_TYPE='BASE TABLE'
reset-sessions = update user_sessions set online=0, num_sessions=0
#tables-created =