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node-template.go
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node-template.go
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package tosca_v2_0
import (
"github.com/tliron/puccini/tosca"
"github.com/tliron/puccini/tosca/normal"
)
//
// NodeTemplate
//
// [TOSCA-v2.0] @ ?
// [TOSCA-Simple-Profile-YAML-v1.3] @ 3.8.3
// [TOSCA-Simple-Profile-YAML-v1.2] @ 3.8.3
// [TOSCA-Simple-Profile-YAML-v1.1] @ 3.7.3
// [TOSCA-Simple-Profile-YAML-v1.0] @ 3.7.3
//
type NodeTemplate struct {
*Entity `name:"node template"`
Name string `namespace:""`
Directives *[]string `read:"directives"`
CopyNodeTemplateName *string `read:"copy"`
NodeTypeName *string `read:"type" require:""`
Metadata Metadata `read:"metadata,Metadata"` // introduced in TOSCA 1.1
Description *string `read:"description"`
Properties Values `read:"properties,Value"`
Attributes Values `read:"attributes,AttributeValue"`
Capabilities CapabilityAssignments `read:"capabilities,CapabilityAssignment"`
Requirements RequirementAssignments `read:"requirements,{}RequirementAssignment"`
RequirementTargetsNodeFilter *NodeFilter `read:"node_filter,NodeFilter"`
Interfaces InterfaceAssignments `read:"interfaces,InterfaceAssignment"`
Artifacts Artifacts `read:"artifacts,Artifact"`
CopyNodeTemplate *NodeTemplate `lookup:"copy,CopyNodeTemplateName" json:"-" yaml:"-"`
NodeType *NodeType `lookup:"type,NodeTypeName" json:"-" yaml:"-"`
rendered bool
}
func NewNodeTemplate(context *tosca.Context) *NodeTemplate {
return &NodeTemplate{
Entity: NewEntity(context),
Name: context.Name,
Properties: make(Values),
Attributes: make(Values),
Capabilities: make(CapabilityAssignments),
Interfaces: make(InterfaceAssignments),
Artifacts: make(Artifacts),
}
}
// tosca.Reader signature
func ReadNodeTemplate(context *tosca.Context) tosca.EntityPtr {
self := NewNodeTemplate(context)
context.ValidateUnsupportedFields(context.ReadFields(self))
switch self.Name {
case "SELF", "SOURCE", "TARGET":
context.Clone(self.Name).ReportValueInvalid("node template name", "reserved")
}
return self
}
// tosca.PreReadable interface
func (self *NodeTemplate) PreRead() {
CopyTemplate(self.Context)
}
// parser.Renderable interface
func (self *NodeTemplate) Render() {
logRender.Debugf("node template: %s", self.Name)
if self.rendered {
// Avoid rendering more than once (can happen if we were called from PropertyMapping etc. Render)
return
}
self.rendered = true
if self.NodeType == nil {
return
}
self.Properties.RenderProperties(self.NodeType.PropertyDefinitions, "property", self.Context.FieldChild("properties", nil))
self.Attributes.RenderAttributes(self.NodeType.AttributeDefinitions, self.Context.FieldChild("attributes", nil))
self.Capabilities.Render(self.NodeType.CapabilityDefinitions, self.Context.FieldChild("capabilities", nil))
self.Requirements.Render(self.NodeType.RequirementDefinitions, self.Context.FieldChild("requirements", nil))
self.Interfaces.RenderForNodeTemplate(self, self.NodeType.InterfaceDefinitions, self.Context.FieldChild("interfaces", nil))
self.Artifacts.Render(self.NodeType.ArtifactDefinitions, self.Context.FieldChild("artifacts", nil))
}
func (self *NodeTemplate) Normalize(normalServiceTemplate *normal.ServiceTemplate) *normal.NodeTemplate {
logNormalize.Debugf("node template: %s", self.Name)
normalNodeTemplate := normalServiceTemplate.NewNodeTemplate(self.Name)
normalNodeTemplate.Metadata = self.Metadata
if self.Description != nil {
normalNodeTemplate.Description = *self.Description
}
if types, ok := normal.GetTypes(self.Context.Hierarchy, self.NodeType); ok {
normalNodeTemplate.Types = types
}
if self.Directives != nil {
normalNodeTemplate.Directives = *self.Directives
}
self.Properties.Normalize(normalNodeTemplate.Properties)
self.Attributes.Normalize(normalNodeTemplate.Attributes)
self.Capabilities.Normalize(self, normalNodeTemplate)
self.Interfaces.NormalizeForNodeTemplate(self, normalNodeTemplate)
self.Artifacts.Normalize(normalNodeTemplate)
return normalNodeTemplate
}
//
// NodeTemplates
//
type NodeTemplates []*NodeTemplate
func (self NodeTemplates) Normalize(normalServiceTemplate *normal.ServiceTemplate) {
for _, nodeTemplate := range self {
normalServiceTemplate.NodeTemplates[nodeTemplate.Name] = nodeTemplate.Normalize(normalServiceTemplate)
}
// Requirements must be normalized after node templates
// (because they may reference other node templates)
for _, nodeTemplate := range self {
if normalNodeTemplate, ok := normalServiceTemplate.NodeTemplates[nodeTemplate.Name]; ok {
nodeTemplate.Requirements.Normalize(nodeTemplate, normalNodeTemplate)
}
}
}