org.appng.core.service

Class DatabaseService

java.lang.Object

org.appng.core.service.MigrationService

org.appng.core.service.DatabaseService

public class DatabaseService
extends MigrationService

A service offering methods for creating and migrating DatabaseConnections of a SiteApplication.

Author:

Matthias Müller

Nested Class Summary

Nested classes/interfaces inherited from class org.appng.core.service.MigrationService

MigrationService.MigrationStatus

Field Summary

Fields

Modifier and Type	Field and Description
protected DatabaseConnectionRepository	databaseConnectionRepository

Fields inherited from class org.appng.core.service.MigrationService

APP_NG_ROOT_DATABASE, DATABASE_MAX_CONNECTIONS, DATABASE_MIN_CONNECTIONS, DATABASE_NAME, DATABASE_NAME_PREFIX, DATABASE_REPAIR, DATABASE_TYPE, DATABASE_VALIDATION_PERIOD, DATABASE_VALIDATION_QUERY, HIBERNATE_CONNECTION_DRIVER_CLASS, HIBERNATE_CONNECTION_PASSWORD, HIBERNATE_CONNECTION_URL, HIBERNATE_CONNECTION_USERNAME

Constructor Summary

Constructors

Constructor and Description
DatabaseService()

Method Summary

Modifier and Type	Method and Description
protected void	dropApplicationConnection(DatabaseConnection databaseConnection, DataSource dataSource)
DatabaseConnection	getRootConnectionOfType(DatabaseConnection.DatabaseType type)
protected String	getUserName(Site site, Application application)
protected void	initApplicationConnection(DatabaseConnection applicationConnection, DataSource dataSource)
DatabaseConnection	initDatabase(Properties config, boolean managed, boolean setActive) Configures and (optionally) migrates the appNG root DatabaseConnection from the given Properties.
MigrationService.MigrationStatus	manageApplicationConnection(SiteApplication siteApplication, File sqlFolder, String databasePrefix) Migrates the database for the given SiteApplication.
void	resetApplicationConnection(SiteApplication siteApplication, String databasePrefix) Resets the configuration for the DatabaseConnection (if existing) of the given SiteApplication to the default values.
void	save(DatabaseConnection databaseConnection) Persists the given DatabaseConnection.
DatabaseConnection	setActiveConnection(DatabaseConnection rootConnection, boolean changeManagedState) Configures the appNG root DatabaseConnections by either creating a new one or updating the existing DatabaseConnection for each DatabaseConnection.DatabaseType.

Methods inherited from class org.appng.core.service.MigrationService

getDataSource, getDataSource, getFlyway, getPlatformConnection, initDatabase, initDatabase, migrate, status, status, statusComplete, statusComplete, statusComplete

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

databaseConnectionRepository

@Autowired
protected DatabaseConnectionRepository databaseConnectionRepository

Constructor Detail

DatabaseService

public DatabaseService()

Method Detail

initApplicationConnection

protected void initApplicationConnection(DatabaseConnection applicationConnection,
                                         DataSource dataSource)
                                  throws IOException,
                                         URISyntaxException

Throws:

IOException

URISyntaxException

resetApplicationConnection

public void resetApplicationConnection(SiteApplication siteApplication,
                                       String databasePrefix)

Resets the configuration for the DatabaseConnection (if existing) of the given SiteApplication to the default values.

Parameters:

siteApplication - a SiteApplication

getUserName

protected String getUserName(Site site,
                             Application application)

dropApplicationConnection

protected void dropApplicationConnection(DatabaseConnection databaseConnection,
                                         DataSource dataSource)
                                  throws IOException,
                                         URISyntaxException

Throws:

IOException

URISyntaxException

initDatabase

@Transactional
public DatabaseConnection initDatabase(Properties config,
                                                      boolean managed,
                                                      boolean setActive)

Configures and (optionally) migrates the appNG root DatabaseConnection from the given Properties.

Parameters:

config - the properties read from "/conf/appNG.properties"

managed - whether to make the connection managed

setActive - if the connection should be set as he active root connection, creating a new DatabaseConnection if necessary. Only applied if MigrationService.status(DatabaseConnection) returns a non-null value.

Returns:

the appNG root DatabaseConnection

setActiveConnection

@Transactional
public DatabaseConnection setActiveConnection(DatabaseConnection rootConnection,
                                                             boolean changeManagedState)

Configures the appNG root DatabaseConnections by either creating a new one or updating the existing DatabaseConnection for each DatabaseConnection.DatabaseType. Also checks if the connections are working and calls DatabaseConnection#setActive(false) if this is not the case.

Parameters:

rootConnection - the current root connection

changeManagedState - if set to true, the managed state for an existing connection is set to rootConnection#isManaged()

getRootConnectionOfType

public DatabaseConnection getRootConnectionOfType(DatabaseConnection.DatabaseType type)

manageApplicationConnection

@Transactional
public MigrationService.MigrationStatus manageApplicationConnection(SiteApplication siteApplication,
                                                                                   File sqlFolder,
                                                                                   String databasePrefix)

Migrates the database for the given SiteApplication.

Parameters:

siteApplication - the SiteApplication to migrate the database for

sqlFolder - the root folder for the migration-scripts provided by the SiteApplication

databasePrefix - the prefix for the database to create

Returns:

the MigrationService.MigrationStatus

save

@Transactional
public void save(DatabaseConnection databaseConnection)

Persists the given DatabaseConnection.

Parameters:

databaseConnection - the connection to persist.