org.apache.logging.log4j.core
Interface Layout<T extends Serializable>

Type Parameters:
T - The Serializable type returned by toSerializable(LogEvent)
All Known Implementing Classes:
AbstractLayout, AbstractStringLayout, HTMLLayout, JSONLayout, PatternLayout, RFC5424Layout, SerializedLayout, SyslogLayout, XMLLayout

public interface Layout<T extends Serializable>

Lays out a LogEvent in different formats. The formats are:


Method Summary
 Map<String,String> getContentFormat()
          Returns a description of the content format.
 String getContentType()
          Returns the content type output by this layout.
 byte[] getFooter()
          Returns the format for the layout format.
 byte[] getHeader()
          Returns the header for the layout format.
 byte[] toByteArray(LogEvent event)
          Formats the event suitable for display.
 T toSerializable(LogEvent event)
          Formats the event as an Object that can be serialized.
 

Method Detail

getFooter

byte[] getFooter()
Returns the format for the layout format.

Returns:
The footer.

getHeader

byte[] getHeader()
Returns the header for the layout format.

Returns:
The header.

toByteArray

byte[] toByteArray(LogEvent event)
Formats the event suitable for display.

Parameters:
event - The Logging Event.
Returns:
The formatted event.

toSerializable

T toSerializable(LogEvent event)
Formats the event as an Object that can be serialized.

Parameters:
event - The Logging Event.
Returns:
The formatted event.

getContentType

String getContentType()
Returns the content type output by this layout. The base class returns "text/plain".

Returns:
the content type.

getContentFormat

Map<String,String> getContentFormat()
Returns a description of the content format.

Returns:
a Map of key/value pairs describing the Layout-specific content format, or an empty Map if no content format descriptors are specified.


Copyright © 1999-2013 Apache Software Foundation. All Rights Reserved.
Apache Logging, Apache Log4j, Log4j, Apache, the Apache feather logo, the Apache Logging project logo, and the Apache Log4j logo are trademarks of The Apache Software Foundation.