Generate a Version.java file in Maven
code-generation, java, maven-2
Solution
After more Googling, I came up with this (in the pom.xml):
<plugins>
...
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<version>1.3</version>
<executions>
<execution>
<goals>
<goal>run</goal>
</goals>
<phase>generate-sources</phase>
<configuration>
<tasks>
<property name="src.dir" value="${project.build.sourceDirectory}" />
<property name="package.dir" value="com/foo/bar" />
<property name="package.name" value="com.foo.bar" />
<property name="buildtime" value="${maven.build.timestamp}" />
<echo file="${src.dir}/${package.dir}/Version.java" message="package ${package.name};${line.separator}" />
<echo file="${src.dir}/${package.dir}/Version.java" append="true" message="public final class Version {${line.separator}" />
<echo file="${src.dir}/${package.dir}/Version.java" append="true"
message=" public static String VERSION="${buildtime}";${line.separator}" />
<echo file="${src.dir}/${package.dir}/Version.java" append="true" message="}${line.separator}" />
<echo message="BUILD ${buildtime}" />
</tasks>
</configuration>
</execution>
</executions>
</plugin>
...
</plugins>
It seems to work well and produces this Java file:
package com.foo.bar;
public final class Version {
public static String VERSION="100318.1211";
}
Problem
I have a Java project that I build using an Ant script. I am trying to convert the project to Maven. One of the tasks generates a Java source file called Version.java that contains a static String representation of the compilation timestamp, as follows: ``` package com.foo.bar; public final class Version { public static String VERSION="100301.1046"; } ``` The Ant task is very simple: ``` <target name="version" depends="init" description="Create Version.java"> <echo file="src/${package.dir}/Version.java" message="package ${package.name};${line.separator}" /> <echo file="src/${package.dir}/Version.java" append="true" message="public final class Version {${line.separator}" /> <echo file="src/${package.dir}/Version.java" append="true" message=" public static String VERSION="${buildtime}";${line.separator}" /> <echo file="src/${package.dir}/Version.java" append="true" message="}${line.separator}" /> <echo message="BUILD ${buildtime}" /> </target> ``` Is it possible to do something similar in Maven, using generate-sources, or some other simple method?