// groupNodeSummary renders the summary for a group node. n.Topology is
// expected to be of the form: group:container:hostname
func groupNodeSummary(base NodeSummary, r report.Report, n report.Node) (NodeSummary, bool) {
parts := strings.Split(n.Topology, ":")
if len(parts) != 3 {
return NodeSummary{}, false
}
label, ok := n.Latest.Lookup(parts[2])
if !ok {
return NodeSummary{}, false
}
base.Label, base.Rank = label, label
t, ok := r.Topology(parts[1])
if ok && t.Label != "" {
if count, ok := n.Counters.Lookup(parts[1]); ok {
if count == 1 {
base.LabelMinor = fmt.Sprintf("%d %s", count, t.Label)
} else {
base.LabelMinor = fmt.Sprintf("%d %s", count, t.LabelPlural)
}
}
}
base.Shape = t.GetShape()
base.Stack = true
return base, true
}
// NodeTables produces a list of tables (to be consumed directly by the UI) based
// on the report and the node. It uses the report to get the templates for the node's
// topology.
func NodeTables(r report.Report, n report.Node) []report.Table {
if _, ok := n.Counters.Lookup(n.Topology); ok {
// This is a group of nodes, so no tables!
return nil
}
if topology, ok := r.Topology(n.Topology); ok {
return topology.TableTemplates.Tables(n)
}
return nil
}
// NodeMetadata produces a table (to be consumed directly by the UI) based on
// an a report.Node, which is (hopefully) a node in one of our topologies.
func NodeMetadata(r report.Report, n report.Node) []report.MetadataRow {
if _, ok := n.Counters.Lookup(n.Topology); ok {
// This is a group of nodes, so no metadata!
return nil
}
if topology, ok := r.Topology(n.Topology); ok {
return topology.MetadataTemplates.MetadataRows(n)
}
return nil
}
func baseNodeSummary(r report.Report, n report.Node) NodeSummary {
t, _ := r.Topology(n.Topology)
return NodeSummary{
ID: n.ID,
Shape: t.GetShape(),
Linkable: true,
Metadata: NodeMetadata(r, n),
Metrics: NodeMetrics(r, n),
Tables: NodeTables(r, n),
Adjacency: n.Adjacency.Copy(),
}
}
// NodeMetrics produces a table (to be consumed directly by the UI) based on
// an a report.Node, which is (hopefully) a node in one of our topologies.
func NodeMetrics(r report.Report, n report.Node) []report.MetricRow {
if _, ok := n.Counters.Lookup(n.Topology); ok {
// This is a group of nodes, so no metrics!
return nil
}
topology, ok := r.Topology(n.Topology)
if !ok {
return nil
}
return topology.MetricTemplates.MetricRows(n)
}
func controls(r report.Report, n report.Node) []ControlInstance {
if t, ok := r.Topology(n.Topology); ok {
return controlsFor(t, n.ID)
}
return []ControlInstance{}
}
// Render implements Renderer
func (t TopologySelector) Render(r report.Report, _ Decorator) report.Nodes {
topology, _ := r.Topology(string(t))
return topology.Nodes
}