eolivelli commented on a change in pull request #286: [MNG-6656] Introduce base
for build/consumer process
URL: https://github.com/apache/maven/pull/286#discussion_r330296309
##########
File path:
maven-core/src/main/java/org/apache/maven/internal/aether/DefaultRepositorySystemSessionFactory.java
##########
@@ -238,9 +263,83 @@ else if ( request.isUpdateSnapshots() )
mavenRepositorySystem.injectProxy( session,
request.getPluginArtifactRepositories() );
mavenRepositorySystem.injectAuthentication( session,
request.getPluginArtifactRepositories() );
+ if ( Boolean.getBoolean( "maven.experimental.buildconsumer" ) )
+ {
+ session.setFileTransformerManager( newFileTransformerManager() );
+ }
return session;
}
+ private FileTransformerManager newFileTransformerManager()
+ {
+ return new FileTransformerManager()
+ {
+ @Override
+ public Collection<FileTransformer> getTransformersForArtifact(
final Artifact artifact )
+ {
+ Collection<FileTransformer> transformers = new ArrayList<>();
+ if ( "pom".equals( artifact.getExtension() ) )
+ {
+ final TransformerFactory transformerFactory =
TransformerFactory.newInstance();
+
+ transformers.add( new FileTransformer()
+ {
+ @Override
+ public InputStream transformData( File file )
+ throws IOException, TransformException
+ {
+ final PipedOutputStream pipedOutputStream = new
PipedOutputStream();
+ final PipedInputStream pipedInputStream = new
PipedInputStream( pipedOutputStream );
+
+ final SAXSource transformSource;
+ try
+ {
+ transformSource =
+ new SAXSource(
consumerPomXMLFilterFactory.get().get( file.toPath() ),
+ new InputSource( new
FileReader( file ) ) );
+ }
+ catch ( SAXException |
ParserConfigurationException e )
+ {
+ e.printStackTrace();
+ throw new TransformException( "Failed to
create a consumerPomXMLFilter", e );
+ }
+
+ final StreamResult result = new StreamResult(
pipedOutputStream );
+
+ final Runnable runnable = new Runnable()
+ {
+ @Override
+ public void run()
+ {
+ try ( PipedOutputStream out =
pipedOutputStream )
+ {
+
transformerFactory.newTransformer().transform( transformSource, result );
+ }
+ catch ( TransformerException | IOException
e )
+ {
+ e.printStackTrace();
+ throw new RuntimeException( e );
+ }
+ }
+ };
+
+ new Thread( runnable ).start();
Review comment:
maybe it is better to give a name to this thread and consider make it a
daemon thread.
I don't know if it is worth to use a thread pool, in order to save the
creation/destruction of a thread for each pom to transform
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