org.apache.activemq.protobuf.compiler.ProtoMojo Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.activemq.protobuf.compiler;
import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import org.apache.activemq.protobuf.compiler.parser.ParseException;
import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.project.MavenProject;
/**
* A Maven Mojo so that the Proto compiler can be used with maven.
*
* @goal compile
* @phase process-sources
*/
public class ProtoMojo extends AbstractMojo {
/**
* The maven project.
*
* @parameter expression="${project}"
* @required
* @readonly
*/
protected MavenProject project;
/**
* The directory where the proto files (*.proto) are
* located.
*
* @parameter expression="${sourceDirectory}" default-value="${basedir}/src/main/proto"
*/
private File sourceDirectory;
/**
* The directory where the output files will be located.
*
* @parameter expression="${outputDirectory}" default-value="${project.build.directory}/generated-sources/proto"
*/
private File outputDirectory;
/**
* The type of generator to run.
*
* @parameter default-value="default"
*/
private String type;
public void execute() throws MojoExecutionException {
File[] files = sourceDirectory.listFiles(new FileFilter() {
public boolean accept(File pathname) {
return pathname.getName().endsWith(".proto");
}
});
if (files==null || files.length==0) {
getLog().warn("No proto files found in directory: " + sourceDirectory.getPath());
return;
}
List recFiles = Arrays.asList(files);
for (File file : recFiles) {
try {
getLog().info("Compiling: "+file.getPath());
if( "default".equals(type) ) {
JavaGenerator generator = new JavaGenerator();
generator.setOut(outputDirectory);
generator.compile(file);
} else if( "alt".equals(type) ) {
AltJavaGenerator generator = new AltJavaGenerator();
generator.setOut(outputDirectory);
generator.compile(file);
}
} catch (CompilerException e) {
getLog().error("Protocol Buffer Compiler failed with the following error(s):");
for (String error : e.getErrors() ) {
getLog().error("");
getLog().error(error);
}
getLog().error("");
throw new MojoExecutionException("Compile failed. For more details see error messages listed above.", e);
}
}
this.project.addCompileSourceRoot(outputDirectory.getAbsolutePath());
}
}