Example #1
0
func parseConstraints(result *[]*structs.Constraint, obj *hclobj.Object) error {
	for _, o := range obj.Elem(false) {
		var m map[string]interface{}
		if err := hcl.DecodeObject(&m, o); err != nil {
			return err
		}
		m["LTarget"] = m["attribute"]
		m["RTarget"] = m["value"]
		m["Operand"] = m["operator"]

		// Default constraint to being hard
		if _, ok := m["hard"]; !ok {
			m["hard"] = true
		}

		// Build the constraint
		var c structs.Constraint
		if err := mapstructure.WeakDecode(m, &c); err != nil {
			return err
		}
		if c.Operand == "" {
			c.Operand = "="
		}

		*result = append(*result, &c)
	}

	return nil
}
Example #2
0
func parseConstraints(result *[]*structs.Constraint, obj *hclobj.Object) error {
	for _, o := range obj.Elem(false) {
		var m map[string]interface{}
		if err := hcl.DecodeObject(&m, o); err != nil {
			return err
		}
		m["LTarget"] = m["attribute"]
		m["RTarget"] = m["value"]
		m["Operand"] = m["operator"]

		// Default constraint to being hard
		if _, ok := m["hard"]; !ok {
			m["hard"] = true
		}

		// If "version" is provided, set the operand
		// to "version" and the value to the "RTarget"
		if constraint, ok := m[structs.ConstraintVersion]; ok {
			m["Operand"] = structs.ConstraintVersion
			m["RTarget"] = constraint
		}

		// If "regexp" is provided, set the operand
		// to "regexp" and the value to the "RTarget"
		if constraint, ok := m[structs.ConstraintRegex]; ok {
			m["Operand"] = structs.ConstraintRegex
			m["RTarget"] = constraint
		}

		if value, ok := m[structs.ConstraintDistinctHosts]; ok {
			enabled, err := strconv.ParseBool(value.(string))
			if err != nil {
				return err
			}

			// If it is not enabled, skip the constraint.
			if !enabled {
				continue
			}

			m["Operand"] = structs.ConstraintDistinctHosts
		}

		// Build the constraint
		var c structs.Constraint
		if err := mapstructure.WeakDecode(m, &c); err != nil {
			return err
		}
		if c.Operand == "" {
			c.Operand = "="
		}

		*result = append(*result, &c)
	}

	return nil
}
Example #3
0
func parseConstraints(result *[]*structs.Constraint, list *ast.ObjectList) error {
	for _, o := range list.Elem().Items {
		var m map[string]interface{}
		if err := hcl.DecodeObject(&m, o.Val); err != nil {
			return err
		}
		m["LTarget"] = m["attribute"]
		m["RTarget"] = m["value"]
		m["Operand"] = m["operator"]

		// If "version" is provided, set the operand
		// to "version" and the value to the "RTarget"
		if constraint, ok := m[structs.ConstraintVersion]; ok {
			m["Operand"] = structs.ConstraintVersion
			m["RTarget"] = constraint
		}

		// If "regexp" is provided, set the operand
		// to "regexp" and the value to the "RTarget"
		if constraint, ok := m[structs.ConstraintRegex]; ok {
			m["Operand"] = structs.ConstraintRegex
			m["RTarget"] = constraint
		}

		if value, ok := m[structs.ConstraintDistinctHosts]; ok {
			enabled, err := parseBool(value)
			if err != nil {
				return fmt.Errorf("distinct_hosts should be set to true or false; %v", err)
			}

			// If it is not enabled, skip the constraint.
			if !enabled {
				continue
			}

			m["Operand"] = structs.ConstraintDistinctHosts
		}

		// Build the constraint
		var c structs.Constraint
		if err := mapstructure.WeakDecode(m, &c); err != nil {
			return err
		}
		if c.Operand == "" {
			c.Operand = "="
		}

		*result = append(*result, &c)
	}

	return nil
}