How to copy a resource or another in Maven depending on the target environment?

Question

I have to create test war and production war, which will have a different log4j.properties file in the WEB-INF directory. I have these files log4j.properties (test war) and dev.log4j.properties (for production enivorment).

How to copy the dev.log4j.properties file into log4j.properties file for production war?

Answer 1

• Use Maven profiles (http://maven.apache.org/guides/introduction/introduction-to-profiles.html)

• Create a "dev" and "prod" profile, selecting an alternate set of resources for each profile. Make Dev active by default.

  <profiles>     <profile>         <id>dev</id>         <activation>             <activeByDefault>true</activeByDefault>         </activation>         <build>             <resources>                 <resource>                     <directory>src/main/resources/dev</directory>                 </resource>             </resources>         </build>     </profile>     <profile>         <id>prod</id>         <build>             <resources>                 <resource>                     <directory>src/main/resources/prod</directory>                 </resource>             </resources>         </build>     </profile> </profiles> 

• Build using the desired profile via: mvn install -Pdev or mvn install -Pprod

Answer 2

I solved this using the maven-resources plugin, where i created the prod directory which has the resources for production environment and copied them to WEB-INF/classes directory in process-resources phase.

<plugin>    <groupId>org.apache.maven.plugins</groupId>    <artifactId>maven-resources-plugin</artifactId>     <version>2.3</version>     <executions>         <execution>             <id>copy-prod-resources</id>             <phase>process-resources</phase>             <goals>                 <goal>copy-resources</goal>             </goals>             <configuration>                 <outputDirectory>webapp/WEB-INF/classes</outputDirectory>                 <resources>                     <resource>                         <directory>src/main/resources/prod</directory>                         <filtering>true</filtering>                     </resource>                 </resources>             </configuration>         </execution>     </executions> </plugin>