Spring yaml dynamic variables substitution - spring

Question

i've got an issue with my log4j2.yml configuration file - the following piece of configuration does not work as expected:
fileName: "${baseName}/logs/${project.build.finalName}.log"
filePattern: "${baseName}/logs/%d{yyyy-MM-dd}_${project.build.finalName}.log.gz"
variable ${baseName} has been declared in the application.properties file:
baseName="d:\dev\dd"
yaml support has been added via the following dependency in the build.gradle file:
compile "com.fasterxml.jackson.core:jackson-core"
compile "com.fasterxml.jackson.dataformat:jackson-dataformat-yaml"
When I built my project, i had a ${baseName} directory in the project root directory. The value "d:\dev\dd" has not been assigned to the ${baseName} variable for some reasons.
Any ideas how to handle this?

Answer 1

variable should be set in log4j2.yml as properties.property, like :
Configuration:
properties:
property:
- name: baseName
value: /home/shared/log/
- name: filename
value: sample.log
- name: pattern
value: "%d{yyyy-MM-dd HH:mm:ss} [%p] [%t] [%c] %m%n"
status: INFO
Appenders:
Console:
name: console
target: SYSTEM_OUT
PatternLayout:
pattern: "${pattern}"
RollingFile:
- name: FileAppender
fileName: "${baseName}${filename}"
filePattern: "${baseName}${filename}-%d{yyyy-MM-dd}"
PatternLayout:
pattern: "${pattern}"
Policies:
TimeBasedTriggeringPolicy: {}
Loggers:
Root:
level: INFO
AppenderRef:
- ref: console
- ref: FileAppender