println(
                "artifactDescriptorInvalid",
                "for " + event.getArtifact() + ": " + event.getException().getMessage());
    }

    public void artifactDescriptorMissing(RepositoryEvent event) {
        println("artifactDescriptorMissing", "for " + event.getArtifact());
    }

    public void artifactInstalled(RepositoryEvent event) {
        println("artifactInstalled", event.getArtifact() + " to " + event.getFile());

        dispatcher.onEvent(event);
        delegate.artifactDescriptorInvalid(event);
    }

    @Override
    public void artifactDescriptorMissing(RepositoryEvent event) {
        dispatcher.onEvent(event);
        delegate.artifactDescriptorMissing(event);
    }

    @Override
    public void artifactInstalled(RepositoryEvent event) {
        dispatcher.onEvent(event);

                event.getArtifact(),
                event.getException().getMessage());
    }

    @Override
    public void artifactDescriptorMissing(RepositoryEvent event) {
        logger.warn("The POM for {} is missing, no dependency information available", event.getArtifact());
    }