[logback-dev] [JIRA] Updated: (LBCORE-60) Allow rolling based on time or file size

[Leung Wang Hei (JIRA)]

     [ http://jira.qos.ch/browse/LBCORE-60?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Leung Wang Hei updated LBCORE-60:
---------------------------------

    Attachment: SizeTimeBasedRolloingPolicy-0.9.9-src.rar

A combination of TimeBasedRollingPolicy and SizeBasedTriggeringPolicy
 * 
 * 
 * Rollover occurs if: 
 * 
 * 1. Over a time period; 
 * 2. File size excced predefined limit; or 
 * 3. After a time point in the first time (Optional, see {@link #setRequireFirstCheck(boolean)}) 
 * 
 * In case (3), for file pattern set to rolloever per Hour/Date/Month, first time rollover occurs if the log file last modified date is before the 1st
 * minute/1st hour/1st day of the month even time elapsed is less than 60 minutes/24 hours/30 days.
 * 
 * 
 * E.g. It is now 16:23 and the log file is lastly modified at 15:59. Elapsed time is less than 60 minutes but with {@link #requireFirstCheck} set as
 * True, a hourly rollover policy rolls the log file and rename it with the last modified time.
 * 
 * 
 * Sample logback.xml file: 
 * 
 * <pre>
 *   <rollingPolicy class="ch.qos.logback.core.rolling.SizeTimeBasedRollingPolicy">
 *      <FileNamePattern>
 *       TestApp-%d{HH.mm}.log
 *     </FileNamePattern>
 *     <MaxFileSize>1000</MaxFileSize> <!--Same convention as in {@link SizeBasedTriggeringPolicy}, e.g. 1000, 10KB, 10MB, 10GB -->
 *     <requiredFirstCheck>FALSE</requiredFirstCheck>
 *   </rollingPolicy>
 * </pre>
 * 
 * 
 * A typical list of generated files in chronicle order shall be like this :
 * 
 * <pre>
 * TestApp-16.48-1.log
 * TestApp-16.48-2.log
 * TestApp-16.48.log
 * TestApp-16.49-1.log
 * TestApp-16.49-2.log
 * TestApp-16.49-3.log
 * TestApp-16.49-4.log
 * TestApp-16.49-5.log
 * TestApp-16.49-6.log
 * TestApp-16.49.log
 * TestApp-16-50-1.log
 * </pre>

> Allow rolling based on time or file size
> ----------------------------------------
>
>                 Key: LBCORE-60
>                 URL: http://jira.qos.ch/browse/LBCORE-60
>             Project: logback-core
>          Issue Type: New Feature
>          Components: Appender
>    Affects Versions: 0.9.9
>            Reporter: Szel Zoltan
>            Assignee: Ceki Gulcu
>         Attachments: SizeTimeBasedRolloingPolicy-0.9.9-src.rar
>
>
> The rolling grouping file appender allows to roll over on a specific interval(TimeBasedRollingPolicy) or when the log file has reached a specific file size. But unfortunately Logback does not support both to use together. For example if i want to roll over every day but i also want to roll the file when it is greater than 100MB.
> Please consider adding this feature to Logback and feel free to contact me if further clarification is required.
> Thanks,
> Zoltan Szel

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