1 files changed, 137 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/vsphere/resources/resources.go b/src/go/collectors/go.d.plugin/modules/vsphere/resources/resources.go
new file mode 100644
index 000000000..7f04a8587
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/modules/vsphere/resources/resources.go
@@ -0,0 +1,137 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package resources
+
+import (
+	"github.com/vmware/govmomi/performance"
+	"github.com/vmware/govmomi/vim25/types"
+)
+
+/*
+
+```
+Virtual Datacenter Architecture Representation (partial).
+
+<root>
++-DC0 # Virtual datacenter
+   +-datastore # Datastore folder (created by system)
+   | +-Datastore1
+   |
+   +-host # Host folder (created by system)
+   | +-Folder1 # Host and Cluster folder
+   | | +-NestedFolder1
+   | | | +-Cluster1
+   | | | | +-Host1
+   | +-Cluster2
+   | | +-Host2
+   | | | +-VM1
+   | | | +-VM2
+   | | | +-hadoop1
+   | +-Host3 # Dummy folder for non-clustered host (created by system)
+   | | +-Host3
+   | | | +-VM3
+   | | | +-VM4
+   | | |
+   +-vm # VM folder (created by system)
+   | +-VM1
+   | +-VM2
+   | +-Folder2 # VM and Template folder
+   | | +-hadoop1
+   | | +-NestedFolder1
+   | | | +-VM3
+   | | | +-VM4
+```
+*/
+
+type Resources struct {
+	DataCenters DataCenters
+	Folders     Folders
+	Clusters    Clusters
+	Hosts       Hosts
+	VMs         VMs
+}
+
+type (
+	Datacenter struct {
+		Name string
+		ID   string
+	}
+
+	Folder struct {
+		Name     string
+		ID       string
+		ParentID string
+	}
+
+	HierarchyValue struct {
+		ID, Name string
+	}
+
+	ClusterHierarchy struct {
+		DC HierarchyValue
+	}
+	Cluster struct {
+		Name     string
+		ID       string
+		ParentID string
+		Hier     ClusterHierarchy
+	}
+
+	HostHierarchy struct {
+		DC      HierarchyValue
+		Cluster HierarchyValue
+	}
+	Host struct {
+		Name          string
+		ID            string
+		ParentID      string
+		Hier          HostHierarchy
+		OverallStatus string
+		MetricList    performance.MetricList
+		Ref           types.ManagedObjectReference
+	}
+
+	VMHierarchy struct {
+		DC      HierarchyValue
+		Cluster HierarchyValue
+		Host    HierarchyValue
+	}
+
+	VM struct {
+		Name          string
+		ID            string
+		ParentID      string
+		Hier          VMHierarchy
+		OverallStatus string
+		MetricList    performance.MetricList
+		Ref           types.ManagedObjectReference
+	}
+)
+
+func (v HierarchyValue) IsSet() bool          { return v.ID != "" && v.Name != "" }
+func (v *HierarchyValue) Set(id, name string) { v.ID = id; v.Name = name }
+
+func (h ClusterHierarchy) IsSet() bool { return h.DC.IsSet() }
+func (h HostHierarchy) IsSet() bool    { return h.DC.IsSet() && h.Cluster.IsSet() }
+func (h VMHierarchy) IsSet() bool      { return h.DC.IsSet() && h.Cluster.IsSet() && h.Host.IsSet() }
+
+type (
+	DataCenters map[string]*Datacenter
+	Folders     map[string]*Folder
+	Clusters    map[string]*Cluster
+	Hosts       map[string]*Host
+	VMs         map[string]*VM
+)
+
+func (dcs DataCenters) Put(dc *Datacenter)        { dcs[dc.ID] = dc }
+func (dcs DataCenters) Get(id string) *Datacenter { return dcs[id] }
+func (fs Folders) Put(folder *Folder)             { fs[folder.ID] = folder }
+func (fs Folders) Get(id string) *Folder          { return fs[id] }
+func (cs Clusters) Put(cluster *Cluster)          { cs[cluster.ID] = cluster }
+func (cs Clusters) Get(id string) *Cluster        { return cs[id] }
+func (hs Hosts) Put(host *Host)                   { hs[host.ID] = host }
+func (hs Hosts) Remove(id string)                 { delete(hs, id) }
+func (hs Hosts) Get(id string) *Host              { return hs[id] }
+func (vs VMs) Put(vm *VM)                         { vs[vm.ID] = vm }
+func (vs VMs) Remove(id string)                   { delete(vs, id) }
+func (vs VMs) Get(id string) *VM                  { return vs[id] }