org.apache.logging.log4j.core.appender.db.jdbc

Class JdbcDatabaseManager

java.lang.Object

org.apache.logging.log4j.core.appender.AbstractManager

org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager

org.apache.logging.log4j.core.appender.db.jdbc.JdbcDatabaseManager

All Implemented Interfaces:

Flushable

public final class JdbcDatabaseManager
extends AbstractDatabaseManager

An AbstractDatabaseManager implementation for relational databases accessed via JDBC.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager

AbstractDatabaseManager.AbstractFactoryData

Field Summary

Fields inherited from class org.apache.logging.log4j.core.appender.AbstractManager

count, LOGGER

Method Summary

Modifier and Type	Method and Description
protected void	commitAndClose() Commits any active transaction (if applicable) and disconnects from the database (returns the connection to the connection pool).
protected void	connectAndStart() Connects to the database and starts a transaction (if applicable).
static JdbcDatabaseManager	getJDBCDatabaseManager(String name, int bufferSize, ConnectionSource connectionSource, String tableName, ColumnConfig[] columnConfigs) Creates a JDBC manager for use within the JdbcAppender, or returns a suitable one if it already exists.
protected void	shutdownInternal() Implementations should implement this method to perform any proprietary disconnection / shutdown operations.
protected void	startupInternal() Implementations should implement this method to perform any proprietary startup operations.
protected void	writeInternal(LogEvent event) Performs the actual writing of the event in an implementation-specific way.

Methods inherited from class org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager

flush, getManager, isRunning, releaseSub, shutdown, startup, toString, write

Methods inherited from class org.apache.logging.log4j.core.appender.AbstractManager

getContentFormat, getCount, getName, hasManager, release

Methods inherited from class java.lang.Object

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

Method Detail

startupInternal

protected void startupInternal()
                        throws Exception

Description copied from class: AbstractDatabaseManager

Implementations should implement this method to perform any proprietary startup operations. This method will never be called twice on the same instance. It is safe to throw any exceptions from this method. This method does not necessarily connect to the database, as it is generally unreliable to connect once and use the same connection for hours.

Specified by:

startupInternal in class AbstractDatabaseManager

Throws:

Exception

shutdownInternal

protected void shutdownInternal()

Description copied from class: AbstractDatabaseManager

Implementations should implement this method to perform any proprietary disconnection / shutdown operations. This method will never be called twice on the same instance, and it will only be called after AbstractDatabaseManager.startupInternal(). It is safe to throw any exceptions from this method. This method does not necessarily disconnect from the database for the same reasons outlined in AbstractDatabaseManager.startupInternal().

Specified by:

shutdownInternal in class AbstractDatabaseManager

connectAndStart

protected void connectAndStart()

Description copied from class: AbstractDatabaseManager

Connects to the database and starts a transaction (if applicable). With buffering enabled, this is called when flushing the buffer begins, before the first call to AbstractDatabaseManager.writeInternal(org.apache.logging.log4j.core.LogEvent). With buffering disabled, this is called immediately before every invocation of AbstractDatabaseManager.writeInternal(org.apache.logging.log4j.core.LogEvent).

Specified by:

connectAndStart in class AbstractDatabaseManager

writeInternal

protected void writeInternal(LogEvent event)

Description copied from class: AbstractDatabaseManager

Performs the actual writing of the event in an implementation-specific way. This method is called immediately from AbstractDatabaseManager.write(LogEvent) if buffering is off, or from AbstractDatabaseManager.flush() if the buffer has reached its limit.

Specified by:

writeInternal in class AbstractDatabaseManager

Parameters:

event - The event to write to the database.

commitAndClose

protected void commitAndClose()

Description copied from class: AbstractDatabaseManager

Commits any active transaction (if applicable) and disconnects from the database (returns the connection to the connection pool). With buffering enabled, this is called when flushing the buffer completes, after the last call to AbstractDatabaseManager.writeInternal(org.apache.logging.log4j.core.LogEvent). With buffering disabled, this is called immediately after every invocation of AbstractDatabaseManager.writeInternal(org.apache.logging.log4j.core.LogEvent).

Specified by:

commitAndClose in class AbstractDatabaseManager

getJDBCDatabaseManager

public static JdbcDatabaseManager getJDBCDatabaseManager(String name,
                                                         int bufferSize,
                                                         ConnectionSource connectionSource,
                                                         String tableName,
                                                         ColumnConfig[] columnConfigs)

Creates a JDBC manager for use within the JdbcAppender, or returns a suitable one if it already exists.

Parameters:

name - The name of the manager, which should include connection details and hashed passwords where possible.

bufferSize - The size of the log event buffer.

connectionSource - The source for connections to the database.

tableName - The name of the database table to insert log events into.

columnConfigs - Configuration information about the log table columns.

Returns:

a new or existing JDBC manager as applicable.