Hi All, Could someone please post a simple example on how to use the RollingFileAppender programmatically? I'm having problems figuring this out. (and massages such as: No context given.... etc.) Basically what I'd like to do is set everything in my java program. Write to a file but adding stuff like computer's IP address and its name etc. Most importantly, I'd like to modify the file name itself. Say in the format: IP_address_date {yyyy-MM-dd_HH-mm-ss}.log Thanks a lot, Greg.
Hello Greg, Please see http://logback.qos.ch/xref-test/ch/qos/logback/core/rolling/TimeBasedRolling... for an example. You just need to replace RollingFileAppender<Object> rfa = new RollingFileAppender<Object>(); with RollingFileAppender<LoggingEvent> rfa = new RollingFileAppender<LoggingEvent>(); and the layout variable should be of type PattenLayout (assuming that's the layout type you wish to use). HTH, Greg Flex wrote:
Hi All, Could someone please post a simple example on how to use the RollingFileAppender programmatically? I'm having problems figuring this out. (and massages such as: No context given.... etc.) Basically what I'd like to do is set everything in my java program. Write to a file but adding stuff like computer's IP address and its name etc. Most importantly, I'd like to modify the file name itself. Say in the format: IP_address_date {yyyy-MM-dd_HH-mm-ss}.log Thanks a lot, Greg.
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-- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch
Thanks Ceki, I used example6 and it works but when loading (as many as possible) logs with Strings I'm getting: " Exception in thread "main" java.lang.OutOfMemoryError: Java heap space ". I have a loop that simply loads using: rfa.doAppend(someString); about 70 000 times. (the same string over and over again, which is about 3.4KB an XML formatted String) How do I prevent it from getting the above stated Exception. Thanks Greg. On Wed, Oct 29, 2008 at 2:07 AM, Ceki Gulcu <listid@qos.ch> wrote:
Hello Greg,
Please see
http://logback.qos.ch/xref-test/ch/qos/logback/core/rolling/TimeBasedRolling...
for an example. You just need to replace
RollingFileAppender<Object> rfa = new RollingFileAppender<Object>();
with
RollingFileAppender<LoggingEvent> rfa = new RollingFileAppender<LoggingEvent>();
and the layout variable should be of type PattenLayout (assuming that's the layout type you wish to use).
HTH,
Greg Flex wrote:
Hi All, Could someone please post a simple example on how to use the RollingFileAppender programmatically? I'm having problems figuring this out. (and massages such as: No context given.... etc.) Basically what I'd like to do is set everything in my java program. Write to a file but adding stuff like computer's IP address and its name etc. Most importantly, I'd like to modify the file name itself. Say in the format: IP_address_date {yyyy-MM-dd_HH-mm-ss}.log Thanks a lot, Greg.
------------------------------------------------------------------------
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-- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch _______________________________________________ Logback-user mailing list Logback-user@qos.ch http://qos.ch/mailman/listinfo/logback-user
Hello Greg, Have you tried using a logger instead of logging directly through the RollingFileAppender instance? What is the rollover frequency? By the way, it would be very helpful if you could create a jira issue (http://jira.qos.ch) attaching code reproducing the problem. Greg Flex wrote:
Thanks Ceki, I used example6 and it works but when loading (as many as possible) logs with Strings I'm getting: " Exception in thread "main" java.lang.OutOfMemoryError: Java heap space ". I have a loop that simply loads using: rfa.doAppend(someString); about 70 000 times. (the same string over and over again, which is about 3.4KB an XML formatted String) How do I prevent it from getting the above stated Exception. Thanks Greg.
On Wed, Oct 29, 2008 at 2:07 AM, Ceki Gulcu <listid@qos.ch> wrote:
Hello Greg,
Please see
http://logback.qos.ch/xref-test/ch/qos/logback/core/rolling/TimeBasedRolling...
for an example. You just need to replace
RollingFileAppender<Object> rfa = new RollingFileAppender<Object>();
with
RollingFileAppender<LoggingEvent> rfa = new RollingFileAppender<LoggingEvent>();
and the layout variable should be of type PattenLayout (assuming that's the layout type you wish to use).
HTH,
Greg Flex wrote: > Hi All, > Could someone please post a simple example on how to use the > RollingFileAppender programmatically? > I'm having problems figuring this out. (and massages such as: No context > given.... etc.) > Basically what I'd like to do is set everything in my java program. > Write to a file but adding stuff like computer's IP address and its name > etc. > Most importantly, I'd like to modify the file name itself. Say in the > format: IP_address_date {yyyy-MM-dd_HH-mm-ss}.log > Thanks a lot, > Greg. > > > > > > ------------------------------------------------------------------------ > > _______________________________________________ > Logback-user mailing list > Logback-user@qos.ch > http://qos.ch/mailman/listinfo/logback-user
-- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch _______________________________________________ Logback-user mailing list Logback-user@qos.ch http://qos.ch/mailman/listinfo/logback-user
------------------------------------------------------------------------
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-- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch
Hi Ceki, It looks like my StringBuilder is the one that screws things up not the Logback. I'm appending strings using StringBuilder sb = new StringBuilder(800) then later (in the code) I have: sb.append("someStrings"); finally I have rfa.doAppend(sb); where rfa is the RollingFileAppender (just to clarify) Anyway I have to solve this..... maybe it'll be better to use StringBuffer. (StringBuffer and StringBuilder is almost identical though.... ) Hm.... Intriguing.... Thanks for your quick replies. Greg. On Wed, Oct 29, 2008 at 1:25 PM, Ceki Gulcu <listid@qos.ch> wrote:
Hello Greg,
Have you tried using a logger instead of logging directly through the RollingFileAppender instance? What is the rollover frequency?
By the way, it would be very helpful if you could create a jira issue (http://jira.qos.ch) attaching code reproducing the problem.
Greg Flex wrote:
Thanks Ceki, I used example6 and it works but when loading (as many as possible) logs with Strings I'm getting: " Exception in thread "main" java.lang.OutOfMemoryError: Java heap space ". I have a loop that simply loads using: rfa.doAppend(someString); about 70 000 times. (the same string over and over again, which is about 3.4KB an XML formatted String) How do I prevent it from getting the above stated Exception. Thanks Greg.
On Wed, Oct 29, 2008 at 2:07 AM, Ceki Gulcu <listid@qos.ch> wrote:
Hello Greg,
Please see
http://logback.qos.ch/xref-test/ch/qos/logback/core/rolling/TimeBasedRolling...
for an example. You just need to replace
RollingFileAppender<Object> rfa = new RollingFileAppender<Object>();
with
RollingFileAppender<LoggingEvent> rfa = new RollingFileAppender<LoggingEvent>();
and the layout variable should be of type PattenLayout (assuming that's the layout type you wish to use).
HTH,
Greg Flex wrote: > Hi All, > Could someone please post a simple example on how to use the > RollingFileAppender programmatically? > I'm having problems figuring this out. (and massages such as: No context > given.... etc.) > Basically what I'd like to do is set everything in my java
program.
> Write to a file but adding stuff like computer's IP address and its name > etc. > Most importantly, I'd like to modify the file name itself. Say in
the
> format: IP_address_date {yyyy-MM-dd_HH-mm-ss}.log > Thanks a lot, > Greg. > > > > > >
------------------------------------------------------------------------
> > _______________________________________________ > Logback-user mailing list > Logback-user@qos.ch > http://qos.ch/mailman/listinfo/logback-user
-- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch _______________________________________________ Logback-user mailing list Logback-user@qos.ch http://qos.ch/mailman/listinfo/logback-user
------------------------------------------------------------------------
_______________________________________________ Logback-user mailing list Logback-user@qos.ch http://qos.ch/mailman/listinfo/logback-user
-- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch _______________________________________________ Logback-user mailing list Logback-user@qos.ch http://qos.ch/mailman/listinfo/logback-user
Are you re-using the StringBuffer? If so, are you calling stringBuffer.setLength(0) to resize it? Greg Flex wrote:
Hi Ceki, It looks like my StringBuilder is the one that screws things up not the Logback. I'm appending strings using StringBuilder sb = new StringBuilder(800) then later (in the code) I have: sb.append("someStrings"); finally I have rfa.doAppend(sb); where rfa is the RollingFileAppender (just to clarify) Anyway I have to solve this..... maybe it'll be better to use StringBuffer. (StringBuffer and StringBuilder is almost identical though.... ) Hm.... Intriguing.... Thanks for your quick replies. Greg.
On Wed, Oct 29, 2008 at 1:25 PM, Ceki Gulcu <listid@qos.ch> wrote:
Hello Greg,
Have you tried using a logger instead of logging directly through the RollingFileAppender instance? What is the rollover frequency?
By the way, it would be very helpful if you could create a jira issue (http://jira.qos.ch) attaching code reproducing the problem.
Greg Flex wrote: > Thanks Ceki, > I used example6 and it works but when loading (as many as possible) logs > with Strings > I'm getting: " Exception in thread "main" java.lang.OutOfMemoryError: > Java heap space ". > I have a loop that simply loads using: rfa.doAppend(someString); about > 70 000 times. > (the same string over and over again, which is about 3.4KB an XML > formatted String) > How do I prevent it from getting the above stated Exception. > Thanks > Greg. > > > > On Wed, Oct 29, 2008 at 2:07 AM, Ceki Gulcu <listid@qos.ch> wrote: > > > Hello Greg, > > Please see > > http://logback.qos.ch/xref-test/ch/qos/logback/core/rolling/TimeBasedRolling... > > for an example. You just need to replace > > RollingFileAppender<Object> rfa = new RollingFileAppender<Object>(); > > with > > RollingFileAppender<LoggingEvent> rfa = > new RollingFileAppender<LoggingEvent>(); > > and the layout variable should be of type PattenLayout (assuming > that's the > layout type you wish to use). > > HTH, > > Greg Flex wrote: > > Hi All, > > Could someone please post a simple example on how to use the > > RollingFileAppender programmatically? > > I'm having problems figuring this out. (and massages such as: No > context > > given.... etc.) > > Basically what I'd like to do is set everything in my java program. > > Write to a file but adding stuff like computer's IP address and > its name > > etc. > > Most importantly, I'd like to modify the file name itself. Say in the > > format: IP_address_date {yyyy-MM-dd_HH-mm-ss}.log > > Thanks a lot, > > Greg. > > > > > > > > > > > > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > Logback-user mailing list > > Logback-user@qos.ch > > http://qos.ch/mailman/listinfo/logback-user > > -- > Ceki Gülcü > Logback: The reliable, generic, fast and flexible logging framework > for Java. > http://logback.qos.ch > _______________________________________________ > Logback-user mailing list > Logback-user@qos.ch > http://qos.ch/mailman/listinfo/logback-user > > > > ------------------------------------------------------------------------ > > _______________________________________________ > Logback-user mailing list > Logback-user@qos.ch > http://qos.ch/mailman/listinfo/logback-user
-- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch _______________________________________________ Logback-user mailing list Logback-user@qos.ch http://qos.ch/mailman/listinfo/logback-user
------------------------------------------------------------------------
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-- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch
Yes now I AM. It works as it suppose to now. Thanks. Greg On Wed, Oct 29, 2008 at 3:06 PM, Ceki Gulcu <listid@qos.ch> wrote:
Are you re-using the StringBuffer? If so, are you calling stringBuffer.setLength(0) to resize it?
Greg Flex wrote:
Hi Ceki, It looks like my StringBuilder is the one that screws things up not the Logback. I'm appending strings using StringBuilder sb = new StringBuilder(800) then later (in the code) I have: sb.append("someStrings"); finally I have rfa.doAppend(sb); where rfa is the RollingFileAppender (just to clarify) Anyway I have to solve this..... maybe it'll be better to use StringBuffer. (StringBuffer and StringBuilder is almost identical though.... ) Hm.... Intriguing.... Thanks for your quick replies. Greg.
On Wed, Oct 29, 2008 at 1:25 PM, Ceki Gulcu <listid@qos.ch> wrote:
Hello Greg,
Have you tried using a logger instead of logging directly through the RollingFileAppender instance? What is the rollover frequency?
By the way, it would be very helpful if you could create a jira issue (http://jira.qos.ch) attaching code reproducing the problem.
Greg Flex wrote: > Thanks Ceki, > I used example6 and it works but when loading (as many as possible) logs > with Strings > I'm getting: " Exception in thread "main" java.lang.OutOfMemoryError: > Java heap space ". > I have a loop that simply loads using: rfa.doAppend(someString); about > 70 000 times. > (the same string over and over again, which is about 3.4KB an XML > formatted String) > How do I prevent it from getting the above stated Exception. > Thanks > Greg. > > > > On Wed, Oct 29, 2008 at 2:07 AM, Ceki Gulcu <listid@qos.ch> wrote: > > > Hello Greg, > > Please see > >
http://logback.qos.ch/xref-test/ch/qos/logback/core/rolling/TimeBasedRolling...
> > for an example. You just need to replace > > RollingFileAppender<Object> rfa = new RollingFileAppender<Object>(); > > with > > RollingFileAppender<LoggingEvent> rfa = > new RollingFileAppender<LoggingEvent>(); > > and the layout variable should be of type PattenLayout
(assuming
> that's the > layout type you wish to use). > > HTH, > > Greg Flex wrote: > > Hi All, > > Could someone please post a simple example on how to use
the
> > RollingFileAppender programmatically? > > I'm having problems figuring this out. (and massages such as: No > context > > given.... etc.) > > Basically what I'd like to do is set everything in my java program. > > Write to a file but adding stuff like computer's IP address and > its name > > etc. > > Most importantly, I'd like to modify the file name itself. Say in the > > format: IP_address_date {yyyy-MM-dd_HH-mm-ss}.log > > Thanks a lot, > > Greg. > > > > > > > > > > > > >
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> > > > _______________________________________________ > > Logback-user mailing list > > Logback-user@qos.ch > > http://qos.ch/mailman/listinfo/logback-user > > -- > Ceki Gülcü > Logback: The reliable, generic, fast and flexible logging framework > for Java. > http://logback.qos.ch > _______________________________________________ > Logback-user mailing list > Logback-user@qos.ch > http://qos.ch/mailman/listinfo/logback-user > > > >
------------------------------------------------------------------------
> > _______________________________________________ > Logback-user mailing list > Logback-user@qos.ch > http://qos.ch/mailman/listinfo/logback-user
-- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch _______________________________________________ Logback-user mailing list Logback-user@qos.ch http://qos.ch/mailman/listinfo/logback-user
------------------------------------------------------------------------
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-- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch _______________________________________________ Logback-user mailing list Logback-user@qos.ch http://qos.ch/mailman/listinfo/logback-user
participants (2)
-
Ceki Gulcu -
Greg Flex