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Posted to commits@logging.apache.org by mi...@apache.org on 2016/03/22 12:55:55 UTC

[31/41] logging-log4j2 git commit: LOG4J2-1322 - Update Log4j 1.x migration guide to include information about system property lookup syntax changes

LOG4J2-1322 - Update Log4j 1.x migration guide to include information about system property lookup syntax changes


Project: http://git-wip-us.apache.org/repos/asf/logging-log4j2/repo
Commit: http://git-wip-us.apache.org/repos/asf/logging-log4j2/commit/63d69aed
Tree: http://git-wip-us.apache.org/repos/asf/logging-log4j2/tree/63d69aed
Diff: http://git-wip-us.apache.org/repos/asf/logging-log4j2/diff/63d69aed

Branch: refs/heads/gelf-layout-gc-free
Commit: 63d69aed2a6066835d0303e69a8d639763b8ec27
Parents: 4ee4e28
Author: Matt Sicker <bo...@gmail.com>
Authored: Fri Mar 18 12:31:45 2016 -0500
Committer: Matt Sicker <bo...@gmail.com>
Committed: Fri Mar 18 12:31:45 2016 -0500

----------------------------------------------------------------------
 src/changes/changes.xml            |  3 +++
 src/site/xdoc/manual/migration.xml | 13 +++++++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)
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http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/63d69aed/src/changes/changes.xml
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diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index 5357d96..cdfabf9 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -220,6 +220,9 @@
       <action issue="LOG4J2-1169" dev="mattsicker" type="add" due-to="Gerald Kritzinger">
         PatternLayout: Possible variable substitution in equals substitution parameter.
       </action>
+      <action issue="LOG4J2-1322" dev="mattsicker" type="update">
+        Update Log4j 1.x migration guide to include information about system property lookup syntax changes.
+      </action>
     </release>
     <release version="2.5" date="2015-12-06" description="GA Release 2.5">
       <action issue="LOG4J2-324" dev="rpopma" type="fix">

http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/63d69aed/src/site/xdoc/manual/migration.xml
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diff --git a/src/site/xdoc/manual/migration.xml b/src/site/xdoc/manual/migration.xml
index 37fe516..4c35c2b 100644
--- a/src/site/xdoc/manual/migration.xml
+++ b/src/site/xdoc/manual/migration.xml
@@ -104,8 +104,17 @@
           <subsection name="Configuring Log4j 2">
             <p>
               Although the Log4j 2 configuration syntax is different than that of Log4j 1.x, most, if not all, of
-              the same functionality is available. Below are the example configurations for Log4j 1.x and their
-              counterparts in Log4j 2.
+              the same functionality is available.
+            </p>
+            <p>
+              Note that system property interpolation via the <code>${foo}</code> syntax has been extended to allow
+              property lookups from many different sources. See the <a href="lookups.html">Lookups</a> documentation
+              for more details. For example, using a lookup for the system property named <code>catalina.base</code>,
+              in Log4j 1.x, the syntax would be <code>${catalina.base}</code>. In Log4j 2, the syntax would be
+              <code>${sys:catalina.base}</code>.
+            </p>
+            <p>
+              Below are the example configurations for Log4j 1.x and their counterparts in Log4j 2.
             </p>
 
             <h4>Sample 1 - Simple configuration using a Console Appender</h4>