class KPM::Installer

def install_killbill_server
  group_id = @config['group_id'] || BaseArtifact::KILLBILL_GROUP_ID
  artifact_id = @config['artifact_id'] || KillbillServerArtifact::KILLBILL_ARTIFACT_ID
  packaging = @config['packaging'] || KillbillServerArtifact::KILLBILL_PACKAGING
  classifier = @config['classifier'] || KillbillServerArtifact::KILLBILL_CLASSIFIER
  version = @config['version'] || LATEST_VERSION
  webapp_path = @config['webapp_path'] || KPM::root
  webapp_dir = File.dirname(webapp_path)
  FileUtils.mkdir_p(webapp_dir)
  @logger.info "Installing Kill Bill server (#{group_id}:#{artifact_id}:#{packaging}:#{classifier}:#{version}) to #{webapp_path}"
  file = KillbillServerArtifact.pull(group_id, artifact_id, packaging, classifier, version, webapp_dir, @config['nexus'], @config['nexus']['ssl_verify'])
  FileUtils.mv file[:file_path], webapp_path
end