+get '/_g/status' => sub {
+ my $self = shift;
+
+ my $ret = $gearman->req( 'TEXT' => 'status' );
+ warn "# status:\n$ret";
+
+ my @c = qw(function total running available);
+
+ my $status;
+ foreach my $l ( split(/\n/,$ret) ) {
+ my @v = split(/\t/, $l);
+ my $h;
+ $h->{$c[$_]} = $v[$_] foreach 0 .. $#v;
+ push @$status, $h;
+ }
+ warn "## ", dump $status;
+ _render_jsonp( $self, Mojo::JSON->new->encode({ status => $status }) );
+};
+
+sub _gearman_redis {
+ my ( $job, $params, $timeout ) = @_;
+
+ my $key = $params;
+ $key =~ s/\W+/_/gs;
+ $key =~ s/\s+/_/gs;
+ $key = "sql.$key";
+ warn "# _gearman_redis $key [$timeout s]";
+
+ my $redis = Redis->new;
+ my $ret;
+
+ if ( $ret = $redis->get($key) ) {
+ warn "redis hit $key\n";
+ } else {
+ $gearman->timeout($timeout);
+ $ret = $gearman->req( 'SUBMIT_JOB', $job, '', $params );
+ die "no result for $params" unless $ret;
+
+ $redis->set($key => $ret);
+ }
+
+ $redis->expire($key => 60); # refresh redis key timeout
+
+ $ret = Mojo::JSON->new->decode( $ret );
+
+ if ( ! exists $ret->{error} && ref $ret->{columns} ne 'ARRAY' ) {
+ $ret->{error} = 'query run longer than ' . $gearman->timeout . ' s timeout';
+ }
+
+ return $ret;
+}
+
+get '/gnuplot' => sub {
+ my $self = shift;
+
+ my $sql = $self->param('sql');
+
+ if ( my $timeout = $self->param('timeout') ) {
+ warn "set timout to $timeout";
+ $gearman->timeout( $timeout );
+ } else {
+ $self->param( timeout => $gearman->timeout );
+ }
+
+ return $self->render('gnuplot', img => '', gnuplot => '') unless $sql;
+
+ # re-format SQL
+ $sql =~ s/\s+(from|where|order|limit|join)/\n$1/gs;
+ $self->param( sql => $sql );
+
+ my $ret = _gearman_redis( 'Store_sql' => $sql, $self->param('timeout') );
+
+ return $self->render('gnuplot', sql => $sql, img => '', gnuplot => $ret->{error} )
+ if exists $ret->{error};
+
+ my $dir = $self->app->home->rel_dir('public');
+
+ my $name = $sql;
+ $name =~ s/\W+//gs;
+ $name .= '.png';
+
+warn "# $sql -> $name";