Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

Debug

...

logging

...

BTM

...

ships

...

with

...

SLF4J

...

which

...

is

...

a

...

logging

...

facade

...

much

...

like

...

Apache

...

Commons

...

Logging

...

but

...

it's

...

safe

...

to

...

use

...

in

...

application

...

servers

...

unlike

...

Commons

...

Logging

...

which

...

suffers

...

from

...

complex

...

classloader

...

issues.

...

Much

...

like

...

Commons

...

Logging,

...

SLF4J

...

can

...

route

...

the

...

log

...

requests

...

to

...

many

...

different

...

implementations

...

including

...

the

...

two

...

most

...

common

...

ones:

...

JDK

...

1.4

...

and

...

Log4J

...

.

By default, BTM is shipped with slf4j-jdk14-1.5.8.jar

...

which

...

is

...

the

...

the

...

JSR

...

047

...

logging

...

API

...

(aka

...

JDK

...

1.4

...

logging)

...

wrapper.

...

If

...

you

...

want

...

to

...

use

...

another

...

logger,

...

simply

...

delete

...

the

...

slf4j-jdk14-1.5.8.jar

...

file

...

and

...

replace

...

it

...

with

...

any

...

one

...

from

...

this

...

list:

...

...

  • for

...

  • JSR

...

  • 047

...

  • logging.

...

...

  • for

...

  • Apache

...

  • Log4J

...

  • 1.2.x.

...

...

  • for

...

  • no

...

  • logging

...

  • (logs

...

  • are

...

  • silently

...

  • dropped).

...

...

  • for

...

  • simple

...

  • System.out

...

  • output.

...

You

...

will

...

also

...

need

...

to

...

put

...

the

...

slf4j-api-1.5.8.jar

...

file

...

in

...

your

...

classpath

...

as

...

well,

...

no

...

matter

...

which

...

one

...

of

...

the

...

above

...

jars

...

you

...

choose.

...

Those

...

jars

...

come

...

from

...

the

...

1.5.8

...

distribution

...

of

...

SLF4J.

...

Mapped Diagnostic Context

This feature appeared in BTM 1.3.3

...

and

...

is

...

not

...

available

...

in

...

earlier

...

versions.

...

If

...

your

...

logging

...

implementation

...

supports

...

MDC

...

(like

...

Log4J

...

does

...

for

...

instance)

...

BTM

...

will

...

push

...

the

...

transaction's

...

GTRID

...

in

...

the

...

logger's

...

MDC

...

when

...

a

...

transaction

...

is

...

created.

...

The

...

GTRID

...

is

...

pushed

...

under

...

the

...

btm-gtrid

...

name.

...

You

...

can

...

make

...

it

...

appear

...

in

...

your

...

Log4J

...

logs

...

by

...

adding

...

it

...

to

...

the

...

ConversionPattern

...

:

<appender name="FileAppender"

...

class="org.apache.log4j.FileAppender">

...


<param

...

name="File"

...

value="SomeLogFile.txt"/>

...


<layout

...

class="org.apache.log4j.PatternLayout">

...


<param name="ConversionPattern"

...

value="%X

...

}btm-gtrid

...

{ -

...

%m%n"/>

...


</layout>

...


</appender>

...

When

...

using

...

a

...

different

...

implementation

...

than

...

Log4J,

...

please

...

refer

...

to

...

your

...

logger's

...

documentation

...

to

...

understand

...

how

...

to

...

make

...

use

...

of

...

this

...

feature.

...

Image Added