Add erasure info support (#2446)

Make it easier for user to see backend properties like backend-type,
Standard storage class Parity and Reduced Redundancy storage class
Parity
Co-authored-by: Prakash Senthil Vel <23444145+prakashsvmx@users.noreply.github.com>

models/admin_info_response.go

@@ -42,6 +42,9 @@ type AdminInfoResponse struct {
 	// Enum: [not configured available unavailable]
 	AdvancedMetricsStatus string `json:"advancedMetricsStatus,omitempty"`
 
+	// backend
+	Backend *BackendProperties `json:"backend,omitempty"`
+
 	// buckets
 	Buckets int64 `json:"buckets,omitempty"`
 
@@ -66,6 +69,10 @@ func (m *AdminInfoResponse) Validate(formats strfmt.Registry) error {
 		res = append(res, err)
 	}
 
+	if err := m.validateBackend(formats); err != nil {
+		res = append(res, err)
+	}
+
 	if err := m.validateServers(formats); err != nil {
 		res = append(res, err)
 	}
@@ -125,6 +132,25 @@ func (m *AdminInfoResponse) validateAdvancedMetricsStatus(formats strfmt.Registr
 	return nil
 }
 
+func (m *AdminInfoResponse) validateBackend(formats strfmt.Registry) error {
+	if swag.IsZero(m.Backend) { // not required
+		return nil
+	}
+
+	if m.Backend != nil {
+		if err := m.Backend.Validate(formats); err != nil {
+			if ve, ok := err.(*errors.Validation); ok {
+				return ve.ValidateName("backend")
+			} else if ce, ok := err.(*errors.CompositeError); ok {
+				return ce.ValidateName("backend")
+			}
+			return err
+		}
+	}
+
+	return nil
+}
+
 func (m *AdminInfoResponse) validateServers(formats strfmt.Registry) error {
 	if swag.IsZero(m.Servers) { // not required
 		return nil
@@ -181,6 +207,10 @@ func (m *AdminInfoResponse) validateWidgets(formats strfmt.Registry) error {
 func (m *AdminInfoResponse) ContextValidate(ctx context.Context, formats strfmt.Registry) error {
 	var res []error
 
+	if err := m.contextValidateBackend(ctx, formats); err != nil {
+		res = append(res, err)
+	}
+
 	if err := m.contextValidateServers(ctx, formats); err != nil {
 		res = append(res, err)
 	}
@@ -195,6 +225,22 @@ func (m *AdminInfoResponse) ContextValidate(ctx context.Context, formats strfmt.
 	return nil
 }
 
+func (m *AdminInfoResponse) contextValidateBackend(ctx context.Context, formats strfmt.Registry) error {
+
+	if m.Backend != nil {
+		if err := m.Backend.ContextValidate(ctx, formats); err != nil {
+			if ve, ok := err.(*errors.Validation); ok {
+				return ve.ValidateName("backend")
+			} else if ce, ok := err.(*errors.CompositeError); ok {
+				return ce.ValidateName("backend")
+			}
+			return err
+		}
+	}
+
+	return nil
+}
+
 func (m *AdminInfoResponse) contextValidateServers(ctx context.Context, formats strfmt.Registry) error {
 
 	for i := 0; i < len(m.Servers); i++ {

models/backend_properties.go

@@ -0,0 +1,73 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+// This file is part of MinIO Console Server
+// Copyright (c) 2022 MinIO, Inc.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+package models
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the swagger generate command
+
+import (
+	"context"
+
+	"github.com/go-openapi/strfmt"
+	"github.com/go-openapi/swag"
+)
+
+// BackendProperties backend properties
+//
+// swagger:model BackendProperties
+type BackendProperties struct {
+
+	// backend type
+	BackendType string `json:"backendType,omitempty"`
+
+	// rr s c parity
+	RrSCParity int64 `json:"rrSCParity,omitempty"`
+
+	// standard s c parity
+	StandardSCParity int64 `json:"standardSCParity,omitempty"`
+}
+
+// Validate validates this backend properties
+func (m *BackendProperties) Validate(formats strfmt.Registry) error {
+	return nil
+}
+
+// ContextValidate validates this backend properties based on context it is used
+func (m *BackendProperties) ContextValidate(ctx context.Context, formats strfmt.Registry) error {
+	return nil
+}
+
+// MarshalBinary interface implementation
+func (m *BackendProperties) MarshalBinary() ([]byte, error) {
+	if m == nil {
+		return nil, nil
+	}
+	return swag.WriteJSON(m)
+}
+
+// UnmarshalBinary interface implementation
+func (m *BackendProperties) UnmarshalBinary(b []byte) error {
+	var res BackendProperties
+	if err := swag.ReadJSON(b, &res); err != nil {
+		return err
+	}
+	*m = res
+	return nil
+}