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lib/API/Eulerian/EDW/Peer/Thin.pm  view on Meta::CPAN

# @param $command - Eulerian Data Warehouse Command.
#
# @return Reply context.
#
use Data::Dumper;
sub create
{
  my ( $self, $command ) = @_;
  my $response;
  my $status;

  # Get Valid Headers
  $status = $self->headers();
  if( ! $status->error() ) {
    # Post new JOB to Eulerian Data Warehouse Platform
    $status = API::Eulerian::EDW::Request->post(
      $self->url(), $status->{ headers }, $command, 'text/plain'
      );
    if( ! $status->error() ) {
      my $json = API::Eulerian::EDW::Request->json( $status->{ response } );
      if( defined( $json ) && $json->{ status }->[ 1 ] != 0 ) {
        $status = API::Eulerian::EDW::Status->new();
        $status->error( 1 );
        $status->msg( $json->{ status }->[ 0 ] );
        $status->code( $json->{ status }->[ 1 ] );
      }
    }
  }

  return $status;
}
#
# @brief Dispatch Eulerian Data Warehouse Analytics Analysis result messages to
#        their matching callback hook.
#
# @param $ws - Eulerian WebSocket.
# @param $buf - Received buffer.
#
sub dispatcher
{
  my ( $ws, $buf ) = @_;
  $buf = encode( 'utf-8', $buf );
  my $json = decode_json( $buf );
  my $type = $json->{ message };
  my $uuid = $json->{ uuid };
  my $self = $ws->{ _THIN };
  my $hook = $self->hook();
  my $rows = $json->{ rows };

  switch( $type ) {
    case 'add' {
      $hook->on_add( $json->{ uuid }, $json->{ rows } );
    }
    case 'replace' {
      $hook->on_replace( $json->{ uuid }, $json->{ rows } );
    }
    case 'headers' {
      #print Dumper( $json ) . "\n";
      $self->{ uuid } = $uuid;
      $hook->on_headers(
        $json->{ uuid }, $json->{ timerange }->[ 0 ],
        $json->{ timerange }->[ 1 ], $json->{ columns }
      );
    }
    case 'progress' {
      $hook->on_progress(
        $json->{ uuid }, $json->{ progress }
      );
    }
    case 'status' {
      $hook->on_status(
        $json->{ uuid }, $json->{ aes }, $json->{ status }->[ 1 ],
        $json->{ status }->[ 0 ], $json->{ status }->[ 2 ]
      );
    }
    else {}
  }

}
#
# @brief Join Websocket stream, raise callback hook accordingly to received
#        messages types.
#
# @param $self - API::Eulerian::EDW::Peer:Thin instance.
# @param $rc - Reply context of JOB creation.
#
# @return Reply context.
#
sub join
{
  my ( $self, $status ) = @_;
  my $json = API::Eulerian::EDW::Request->json( $status->{ response } );
  my $ws = API::Eulerian::EDW::WebSocket->new(
    $self->host(), $self->ports()->[ $self->secure() ]
    );
  my $url = $self->url( $json->{ aes } );
  $ws->{ _THIN } = $self;
  return $ws->join( $url, \&dispatcher );
}
#
# @brief Do Request on Eulerian Data Warehouse Platform.
#
# @param $self - Eulerian Data Warehouse Peer.
# @param $command - Eulerian Data Warehouse Command.
#
sub request
{
  my ( $self, $command ) = @_;
  my $bench = new API::Eulerian::EDW::Bench();
  my $response;
  my $status;
  my $json;

  # Create Job on Eulerian Data Warehouse Platform
  $bench->start();
  $status = $self->create( $command );
  $bench->stage( 'create' );

  if( ! $status->error() ) {
    # Join Websocket call user specific callback hook
    $bench->start();
    $status = $self->join( $status );