org.apache.velocity.runtime.parser

Class LogContext

java.lang.Object

org.apache.velocity.runtime.parser.LogContext

public class LogContext
extends Object

Track location in template files during rendering by populating the slf4j MDC tags file, line and column.

An MDC-aware logger can then use this info to display the template location in the message

For instance with webapp-slf4j-logger, it's enough to use %file, %line and %column in the logger format string.

Since this feature can have a performance impact, it has to be enabled in velocity.properties using:

runtime.log.track_location = true

(typically in a development environment)

Since:

2.2

Version:

$Id:$

Author:

Claude Brisson

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.slf4j.Logger	logger
static String	MDC_COLUMN
static String	MDC_FILE
static String	MDC_LINE

Constructor Summary

Constructors

Constructor and Description
LogContext(boolean trackLocation)

Method Summary

Modifier and Type	Method and Description
String[]	getStackTrace()
void	popLogContext()
void	pushLogContext(SimpleNode src, Info info)

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected static org.slf4j.Logger logger

MDC_FILE

public static final String MDC_FILE

See Also:

Constant Field Values

MDC_LINE

public static final String MDC_LINE

See Also:

Constant Field Values

MDC_COLUMN

public static final String MDC_COLUMN

See Also:

Constant Field Values

Constructor Detail

LogContext

public LogContext(boolean trackLocation)

Method Detail

pushLogContext

public void pushLogContext(SimpleNode src,
                           Info info)

popLogContext

public void popLogContext()

getStackTrace

public String[] getStackTrace()