I have the problem that maven does not compile any .g4 files and I have no clue why. I had a look at a couple of websites but since there is not a really good documentation, I cannot figure out my problem.
This is my pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>toreal</groupId>
<artifactId>toreal</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>TOREAL</name>
<description>Tableau Optimierung for RElational ALgebra</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<antlr4.visitor>true</antlr4.visitor>
<antlr4.listener>true</antlr4.listener>
</properties>
<dependencies>
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>javax.json</artifactId>
</dependency>
<dependency>
<groupId>javax.json</groupId>
<artifactId>javax.json-api</artifactId>
</dependency>
<dependency>
<groupId>com.googlecode.json-simple</groupId>
<artifactId>json-simple</artifactId>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
</dependency>
<dependency>
<groupId>org.antlr</groupId>
<artifactId>antlr4</artifactId>
</dependency>
</dependencies>
<build>
<sourceDirectory>src</sourceDirectory>
<resources>
<resource>
<directory>src</directory>
<excludes>
<exclude>**/*.java</exclude>
</excludes>
</resource>
</resources>
<pluginManagement>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
<webappDirectory>../WebContent</webappDirectory>
<!-- webappDirectory is relative to sourceDirectory and basepath var
is not working -->
</configuration>
</plugin>
<plugin>
<groupId>org.antlr</groupId>
<artifactId>antlr4-maven-plugin</artifactId>
<version>4.5.3</version>
<configuration>
<sourceDirectory>${basedir}/src/parser/antlr4</sourceDirectory>
<outputDirectory>${project.build.directory}/generated-sources/antlr4</outputDirectory>
</configuration>
<executions>
<execution>
<goals>
<goal>antlr4</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehouse.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.12</version>
<executions>
<execution>
<id>add-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>target/generated-sources/antlr4</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>javax.json</artifactId>
<version>1.0.4</version>
</dependency>
<dependency>
<groupId>javax.json</groupId>
<artifactId>javax.json-api</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>com.googlecode.json-simple</groupId>
<artifactId>json-simple</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.7</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>org.antlr</groupId>
<artifactId>antlr4</artifactId>
<version>4.5.3</version>
</dependency>
<dependency>
<groupId>org.antlr</groupId>
<artifactId>antlr4-runtime</artifactId>
<version>4.5.3</version>
</dependency>
</dependencies>
</dependencyManagement>
<packaging>war</packaging>
</project>
I want to store my .g4 files at /src/main/parser/antlr4/ and the generated Java source files at /target/generated-sources/antlr4. This in an example grammar located at /src/main/parser/antlr4/TestLexer.g4
grammar TestLexer
options{
language = Java;
output = AST;
}
H: 'Hello';
W: 'World';
expression : H W;
When I try to generate the sources within eclipse (with maven build or generate-sources or install) nothing happens. This is an example output of mvn generate-sources:
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building TOREAL 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.112 s
[INFO] Finished at: 2016-10-20T18:31:04+02:00
[INFO] Final Memory: 7M/241M
[INFO] ------------------------------------------------------------------------
The /target/generated-sources folder contains an empty annotations folder only but not the Java source files.
Since I am completely new to Maven as well as to Antlr, I appreciate any help to find out what's wrong.
