logging-log4j2 | Apache Log4j 2 is a versatile

 by   apache Java Version: rel/2.20.0 License: Apache-2.0

kandi X-RAY | logging-log4j2 Summary

kandi X-RAY | logging-log4j2 Summary

logging-log4j2 is a Java library typically used in Logging, Spring Boot applications. logging-log4j2 has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has medium support. You can download it from GitHub, Maven.

Apache Log4j 2 is an upgrade to Log4j that provides significant improvements over its predecessor, Log4j 1.x, and provides many of the improvements available in Logback while fixing some inherent problems in Logback's architecture.

            kandi-support Support

              logging-log4j2 has a medium active ecosystem.
              It has 3094 star(s) with 1523 fork(s). There are 112 watchers for this library.
              It had no major release in the last 6 months.
              There are 46 open issues and 36 have been closed. On average issues are closed in 8 days. There are 40 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of logging-log4j2 is rel/2.20.0

            kandi-Quality Quality

              logging-log4j2 has 0 bugs and 0 code smells.

            kandi-Security Security

              logging-log4j2 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              logging-log4j2 code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              logging-log4j2 is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              logging-log4j2 releases are not available. You will need to build from source code and install.
              Deployable package is available in Maven.
              Build file is available. You can build the component from source.
              Installation instructions, examples and code snippets are available.
              logging-log4j2 saves you 200569 person hours of effort in developing the same functionality from scratch.
              It has 232003 lines of code, 18976 functions and 3015 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed logging-log4j2 and discovered the below as its top functions. This is intended to give you an instant insight into logging-log4j2 implemented functionality, and help decide if they suit your requirements.
            • Compute the time after the given date .
            • Parses the pattern .
            • Merge filter configurations .
            • Build a template resolver from a map .
            • Write value .
            • Create Flume appender .
            • Create a pattern converter .
            • Get an abbreviation from a string .
            • Returns the next time .
            • Factory method .
            Get all kandi verified functions for this library.

            logging-log4j2 Key Features

            No Key Features are available at this moment for logging-log4j2.

            logging-log4j2 Examples and Code Snippets

            No Code Snippets are available at this moment for logging-log4j2.

            Community Discussions


            Configure composite filter for specific logger in Log4j2 via properties file
            Asked 2022-Apr-03 at 08:30

            Log4j2 provides various kind of filters [1] and these can be configured at four levels:

            1. Context-wide
            2. Logger
            3. Appender
            4. Appender Reference

            In my use-case, I would like to setup a CompositeFilter at a specified Logger (level 2 from above) using the property file syntax.

            For the sake of the example let's assume that we want to setup a composite filter composed from two RegexFilter matching .*SQL.* and .*JPQL.* respectively. Assuming that we have the following events:



            Answered 2022-Apr-03 at 05:49

            There are two problems with your configuration:

            1. A LoggerConfig accepts only a single filter. If you want to use multiple filters, configure a CompositeFilter explicitly (which has a plugin name "Filters),
            2. The order of filters in a properties configuration file is basically random, since Properties is a Hashtable and does not have a predefined order.

            Considering the two facts above a variation of your attempt 3 should work:

            Source https://stackoverflow.com/questions/71719354


            maven build fails for java 9 when java 11 is installed
            Asked 2021-Dec-22 at 13:49

            I'm trying to build the log4j package from source:



            Answered 2021-Dec-22 at 13:49

            Until recently, the build process of log4j-core depends on the build process of a companion log4j-core-java9 module.

            This multi-module build approach was introduced in this issue and the changes performed are described in this commit.

            In a future version of the library these dependencies will be removed as described in this issue precisely to avoid potential dependency problems. The issue provides more information about was it going on:

            Log4j API and Log4j Core have to build the Java 9 classes in one Maven module and then copy them into the "normal" module. The Java 9 projects are not deployed during a release. The pom.xml files were specifying both as provided dependencies. When the enforcer plugin sees this it is trying to resolve them - sometimes - and fails. It seems these don't need to be declared as dependencies because they are configured into the dependency plugin. So the dependencies should be removed from the pom files.

            If you need to build the code from an older version from source, according to the changes introduced in the aforementioned commit, you first need to assembly log4j-core-java9 and then use the dependency in the build process of log4j-core itself.

            In a nutshell, try the following.

            First, log4j2 uses toolchains in its build process, so for JDK 11 you may need to provide an entry in ~/.m2/toolchains.xml file like the following:

            Source https://stackoverflow.com/questions/70410416


            Extend Log4j2 Tests
            Asked 2021-Mar-26 at 09:05

            I have a wrapper for log4j2 Logger class - e.g.



            Answered 2021-Mar-26 at 09:05

            Thanks to @rgoers, turns out I was missing the @Named annotation on the parameters.

            So my MyLoggerTest works with the following:

            Source https://stackoverflow.com/questions/66690625


            log4j2 new compression algorithm
            Asked 2020-Jun-09 at 01:23

            I would like to use log4j2 RollingFileAppender with a customized compression algorithm (ZStd).

            It seems that the compression algorithms supported so far are the ones in the FileExtension enum (zip, gz, bz2, ...), see https://github.com/apache/logging-log4j2/blob/efa64bfad3f67c5b5fed6b25d65ef5ca2212011b/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/rolling/FileExtension.java, and I believe it is not possible to add a new one (apart from patching the library).

            A solution could be to reimplement the RollingFileAppender using the approach suggested here: https://logging.apache.org/log4j/2.x/manual/extending.html#Appenders, but this would involve a lot of ugly copy and paste, this appender really does a lot of things.

            The approach I would like to follow is to create instead a new Action, implementing the AbstractAction interface, but I do not know how to tell log4j2 to execute this action on rollover. Is this doable? Is this the correct way to achieve this goal?



            Answered 2020-Jun-09 at 01:23

            Yes. The Rollover strategy uses FileExtension to automatically add a CompressAction based on the file extension, but you can do this yourself just by configuring a custom Action. While you can look at ZipoCompressAction as a template for how to implement the action, you would also need to look at DeleteAction to see how to declare your custom action as a plugin.

            Source https://stackoverflow.com/questions/62265616


            Log4j2 Regexfilter seems to ignore filter configuration
            Asked 2020-Mar-27 at 12:21

            I'm trying to filter out Apache Tomcat startup(/shutdown) events from normal application logging for a third-party tool that manages the application lifecycle of various Tomcat instances. The base is Log4j2 (2.12.1) using a Regexfilter in the Appender Context for a simple File appender (example below massively simplyfied, including hard-coded values):



            Answered 2020-Mar-27 at 12:21

            Solution: the regex seems to have been wrong, removing the spaces around 'startup' makes it work.

            Source https://stackoverflow.com/questions/60884562

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install logging-log4j2

            How to download Log4j, and how to use it from Maven, Ivy and Gradle. You can access the latest development snapshot by using the Maven repository https://repository.apache.org/snapshots, see Snapshot builds.


            The Log4j 2 User's Guide is available here or as a downloadable PDF.
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