Package cz.metacentrum.perun.core.blImpl

Class DatabaseManagerBlImpl

java.lang.Object

cz.metacentrum.perun.core.blImpl.DatabaseManagerBlImpl

All Implemented Interfaces:

DatabaseManagerBl

public class DatabaseManagerBlImpl
extends Object
implements DatabaseManagerBl

Database manager can work with database version and upgraded state of perun DB.

Author:

Michal Stava email:<stavamichal@gmail.com>

Field Summary

Fields

Modifier and Type	Field	Description
static final String	POSTGRES_CHANGELOG

Fields inherited from interface cz.metacentrum.perun.core.bl.DatabaseManagerBl

NAME_OF_ORACLE_ARRAY_METHOD

Constructor Summary

Constructors

Constructor	Description
DatabaseManagerBlImpl(DatabaseManagerImplApi databaseManagerImpl)

Method Summary

Modifier and Type	Method	Description
void	createProperty(String property)	Create new property in configurations.
List<DBVersion>	getChangelogVersions(String currentDBVersion, String fileName)	Parses all new database versions from DB changelog file and creates from them list of DBVersion objects.
String	getCurrentDatabaseVersion()	Return current database version in string (ex. 3.0.1)
String	getDatabaseDriverInformation()	Get DB driver information from datasource (name-version)
String	getDatabaseInformation()	Get DB information from datasource (name-version)
DatabaseManagerImplApi	getDatabaseManagerImpl()
JdbcPerunTemplate	getJdbcPerunTemplate()	Return JDBC template for performing custom simple SQLs where jdbc is not normally available
long	getTimeOfQueryPerformance()	Get time in ns "nanoseconds" of calling 1 simple update query to DB.
protected void	initialize()
boolean	propertyExists(String property)	Return true if property already exists, false if not.
void	updateDatabaseVersion(List<DBVersion> dbVersions)	Method updates database to the current code version.

Methods inherited from class java.lang.Object

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

Field Details

POSTGRES_CHANGELOG

public static final String POSTGRES_CHANGELOG

See Also:

• Constant Field Values

Constructor Details

DatabaseManagerBlImpl

public DatabaseManagerBlImpl(DatabaseManagerImplApi databaseManagerImpl)

Method Details

createProperty

public void createProperty(String property)

Description copied from interface: DatabaseManagerBl

Create new property in configurations. Initial value will be "N/A".

Specified by:

createProperty in interface DatabaseManagerBl

Parameters:

property - name of property to be created

getChangelogVersions

public List<DBVersion> getChangelogVersions(String currentDBVersion,
 String fileName)

Description copied from interface: DatabaseManagerBl

Parses all new database versions from DB changelog file and creates from them list of DBVersion objects. The list contains all versions from currentDBVersion (without currentDBVersion itself) to now (the version at the top of the changelog file)

Specified by:

getChangelogVersions in interface DatabaseManagerBl

Parameters:

currentDBVersion - current DB version

fileName - DB changelog file name, file should be in resources

Returns:

list of DBVersion objects ordered by version descending

getCurrentDatabaseVersion

public String getCurrentDatabaseVersion()

Description copied from interface: DatabaseManagerBl

Return current database version in string (ex. 3.0.1)

Specified by:

getCurrentDatabaseVersion in interface DatabaseManagerBl

Returns:

return current database version

getDatabaseDriverInformation

public String getDatabaseDriverInformation()

Description copied from interface: DatabaseManagerBl

Get DB driver information from datasource (name-version)

Specified by:

getDatabaseDriverInformation in interface DatabaseManagerBl

Returns:

string information about database driver

getDatabaseInformation

public String getDatabaseInformation()

Description copied from interface: DatabaseManagerBl

Get DB information from datasource (name-version)

Specified by:

getDatabaseInformation in interface DatabaseManagerBl

Returns:

string information about database

getDatabaseManagerImpl

public DatabaseManagerImplApi getDatabaseManagerImpl()

getJdbcPerunTemplate

public JdbcPerunTemplate getJdbcPerunTemplate()

Description copied from interface: DatabaseManagerBl

Return JDBC template for performing custom simple SQLs where jdbc is not normally available

Specified by:

getJdbcPerunTemplate in interface DatabaseManagerBl

Returns:

Peruns JDBC template

getTimeOfQueryPerformance

public long getTimeOfQueryPerformance()

Description copied from interface: DatabaseManagerBl

Get time in ns "nanoseconds" of calling 1 simple update query to DB. This query will update property for this purpose in configurations table.

Specified by:

getTimeOfQueryPerformance in interface DatabaseManagerBl

Returns:

time of processing query in nanoseconds

initialize

protected void initialize()

propertyExists

public boolean propertyExists(String property)

Description copied from interface: DatabaseManagerBl

Return true if property already exists, false if not.

Specified by:

propertyExists in interface DatabaseManagerBl

Parameters:

property - name of property to check existence

Returns:

true if property exists, false if not

updateDatabaseVersion

public void updateDatabaseVersion(List<DBVersion> dbVersions)

Description copied from interface: DatabaseManagerBl

Method updates database to the current code version. It takes list of dbVersions and executes all the commands from them. Commands from the oldest (lowest) version are executed first.

Specified by:

updateDatabaseVersion in interface DatabaseManagerBl

Parameters:

dbVersions - list of dbVersion objects ordered by version descending, should not be empty