org.apache.velocity.runtime.log
Class ServletLogChute

java.lang.Object
  org.apache.velocity.runtime.log.ServletLogChute

All Implemented Interfaces:

LogChute

public class ServletLogChute
extends Object
implements LogChute

Simple wrapper for the servlet log. This passes Velocity log messages to ServletContext.log(String). You may configure the level of output in your velocity.properties by adding the "runtime.log.logsystem.servlet.level" property with one of the following values: error, warn, info, debug, or trace. The default is trace.

Since:

1.6

Version:

$Revision: 730039 $ $Date: 2008-12-29 19:53:19 -0800 (Mon, 29 Dec 2008) $

Author:

Geir Magnusson Jr., Nathan Bubna

Field Summary

static String	PREFIX
static String	RUNTIME_LOG_LEVEL_KEY
protected ServletContext	servletContext

Fields inherited from interface org.apache.velocity.runtime.log.LogChute

DEBUG_ID, DEBUG_PREFIX, ERROR_ID, ERROR_PREFIX, INFO_ID, INFO_PREFIX, TRACE_ID, TRACE_PREFIX, WARN_ID, WARN_PREFIX

Constructor Summary

ServletLogChute()
Construct a simple logger for a servlet environment.

Method Summary

int	getEnabledLevel() Returns the current minimum level at which messages will be printed.
void	init(RuntimeServices rs) init()
boolean	isLevelEnabled(int level) This will return true if the specified level is equal to or higher than the level this LogChute is enabled for.
void	log(int level, String message) Send a log message from Velocity.
void	log(int level, String message, Throwable t) Send a log message from Velocity along with an exception or error
void	setEnabledLevel(int level) Set the minimum level at which messages will be printed.
protected int	toLevel(String level)

Methods inherited from class java.lang.Object

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

Field Detail

RUNTIME_LOG_LEVEL_KEY

public static final String RUNTIME_LOG_LEVEL_KEY

See Also:

Constant Field Values

servletContext

protected ServletContext servletContext

PREFIX

public static final String PREFIX

See Also:

Constant Field Values

Constructor Detail

ServletLogChute

public ServletLogChute()

Construct a simple logger for a servlet environment.
NOTE: this class expects that the ServletContext has already been placed in the runtime's application attributes under its full class name (i.e. "javax.servlet.ServletContext").

Method Detail

init

public void init(RuntimeServices rs)
          throws Exception

init()

Specified by:

init in interface LogChute

Throws:

IllegalStateException - if the ServletContext is not available in the application attributes under the appropriate key.

Exception

toLevel

protected int toLevel(String level)

setEnabledLevel

public void setEnabledLevel(int level)

Set the minimum level at which messages will be printed.

getEnabledLevel

public int getEnabledLevel()

Returns the current minimum level at which messages will be printed.

isLevelEnabled

public boolean isLevelEnabled(int level)

This will return true if the specified level is equal to or higher than the level this LogChute is enabled for.

Specified by:

isLevelEnabled in interface LogChute

Returns:

True if a level is enabled.

log

public void log(int level,
                String message)

Send a log message from Velocity.

Specified by:

log in interface LogChute

log

public void log(int level,
                String message,
                Throwable t)

Description copied from interface: LogChute

Send a log message from Velocity along with an exception or error

Specified by:

log in interface LogChute