Some simple examples of how to use the Avro Maven plugin to generate Avro sources given an Avro schema, protocol or IDL file.
Apache version 2.0 (for more details look at LICENSE.
Download the sources:
bash $ git clone git://github.com/alexholmes/avro-maven.git
Run Avro's code generation against the Avro files contained in src/main/avro ( weather.avsc, weather.avpr and weather.avdl ) using Maven:
$ cd avro-maven/
$ mvn clean compileExamine the code-generated sources:
$ find . -type f -name *.java src/main/java/com/alexholmes/avro/Weather.java
./target/generated-sources/avro/com/alexholmes/avro/Weather.java
./target/generated-sources/avro/com/alexholmes/avro/weatherstation1/Station.java
./target/generated-sources/avro/com/alexholmes/avro/weatherstation1/WeatherStation.java
./target/generated-sources/avro/com/alexholmes/avro/weatherstation2/Simple.java
./target/generated-sources/avro/com/alexholmes/avro/weatherstation2/WeatherStation.javaThe complete Maven file can be viewed in pom.xml.
The key is in adding the following plugin to your pom.xml file:
<plugin>
<groupId>org.apache.avro</groupId>
<artifactId>avro-maven-plugin</artifactId>
<version>${avro.version}</version>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>schema</goal>
<goal>protocol</goal>
<goal>idl-protocol</goal>
</goals>
</execution>
</executions>
</plugin>
You'll also need to include Avro as a dependency:
<properties>
<avro.version>1.7.4</avro.version>
...
</properties>
...
<dependencies>
<dependency>
<groupId>org.apache.avro</groupId>
<artifactId>avro</artifactId>
<version>${avro.version}</version>
</dependency>
<dependency>
<groupId>org.apache.avro</groupId>
<artifactId>avro-maven-plugin</artifactId>
<version>${avro.version}</version>
</dependency>
<dependency>
<groupId>org.apache.avro</groupId>
<artifactId>avro-compiler</artifactId>
<version>${avro.version}</version>
</dependency>
<dependency>
<groupId>org.apache.avro</groupId>
<artifactId>avro-ipc</artifactId>
<version>${avro.version}</version>
</dependency>
</dependencies>
If you want to customize the location of the source or destination files, as well as other settings, take a look at pom-schema-fulldefs.xml, as well as my blog post giving more details on the subject at http://grepalex.com/2013/05/24/avro-maven/.
To see the customized pom.xml in action, use the following command:
$ mvn clean compile -f pom-schema-fulldefs.xmlThe generated output files can be seen with the find command:
$ find . -type f -name *.java
./src/main/altjava/com/alexholmes/avro/Weather.java
./src/test/altjava/com/alexholmes/avro/Test.java
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