123 lines
3.5 KiB
Go
123 lines
3.5 KiB
Go
package bindingrule
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"github.com/hashicorp/consul/api"
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)
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const (
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PrettyFormat string = "pretty"
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JSONFormat string = "json"
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)
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// Formatter defines methods provided by bindingrule command output formatter
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type Formatter interface {
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FormatBindingRule(rule *api.ACLBindingRule) (string, error)
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FormatBindingRuleList(rules []*api.ACLBindingRule) (string, error)
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}
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// GetSupportedFormats returns supported formats
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func GetSupportedFormats() []string {
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return []string{PrettyFormat, JSONFormat}
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}
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// NewFormatter returns Formatter implementation
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func NewFormatter(format string, showMeta bool) (formatter Formatter, err error) {
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switch format {
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case PrettyFormat:
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formatter = newPrettyFormatter(showMeta)
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case JSONFormat:
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formatter = newJSONFormatter(showMeta)
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default:
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err = fmt.Errorf("Unknown format: %s", format)
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}
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return formatter, err
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}
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func newPrettyFormatter(showMeta bool) Formatter {
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return &prettyFormatter{showMeta}
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}
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type prettyFormatter struct {
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showMeta bool
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}
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func (f *prettyFormatter) FormatBindingRule(rule *api.ACLBindingRule) (string, error) {
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var buffer bytes.Buffer
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buffer.WriteString(fmt.Sprintf("ID: %s\n", rule.ID))
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if rule.Namespace != "" {
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buffer.WriteString(fmt.Sprintf("Namespace: %s\n", rule.Namespace))
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}
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buffer.WriteString(fmt.Sprintf("AuthMethod: %s\n", rule.AuthMethod))
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buffer.WriteString(fmt.Sprintf("Description: %s\n", rule.Description))
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buffer.WriteString(fmt.Sprintf("BindType: %s\n", rule.BindType))
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buffer.WriteString(fmt.Sprintf("BindName: %s\n", rule.BindName))
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buffer.WriteString(fmt.Sprintf("Selector: %s\n", rule.Selector))
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if f.showMeta {
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buffer.WriteString(fmt.Sprintf("Create Index: %d\n", rule.CreateIndex))
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buffer.WriteString(fmt.Sprintf("Modify Index: %d\n", rule.ModifyIndex))
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}
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return buffer.String(), nil
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}
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func (f *prettyFormatter) FormatBindingRuleList(rules []*api.ACLBindingRule) (string, error) {
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var buffer bytes.Buffer
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for _, rule := range rules {
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buffer.WriteString(f.formatBindingRuleListEntry(rule))
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}
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return buffer.String(), nil
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}
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func (f *prettyFormatter) formatBindingRuleListEntry(rule *api.ACLBindingRule) string {
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var buffer bytes.Buffer
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buffer.WriteString(fmt.Sprintf("%s:\n", rule.ID))
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if rule.Namespace != "" {
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buffer.WriteString(fmt.Sprintf(" Namespace: %s\n", rule.Namespace))
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}
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buffer.WriteString(fmt.Sprintf(" AuthMethod: %s\n", rule.AuthMethod))
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buffer.WriteString(fmt.Sprintf(" Description: %s\n", rule.Description))
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buffer.WriteString(fmt.Sprintf(" BindType: %s\n", rule.BindType))
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buffer.WriteString(fmt.Sprintf(" BindName: %s\n", rule.BindName))
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buffer.WriteString(fmt.Sprintf(" Selector: %s\n", rule.Selector))
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if f.showMeta {
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buffer.WriteString(fmt.Sprintf(" Create Index: %d\n", rule.CreateIndex))
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buffer.WriteString(fmt.Sprintf(" Modify Index: %d\n", rule.ModifyIndex))
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}
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return buffer.String()
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}
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func newJSONFormatter(showMeta bool) Formatter {
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return &jsonFormatter{showMeta}
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}
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type jsonFormatter struct {
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showMeta bool
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}
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func (f *jsonFormatter) FormatBindingRule(rule *api.ACLBindingRule) (string, error) {
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b, err := json.MarshalIndent(rule, "", " ")
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if err != nil {
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return "", fmt.Errorf("Failed to marshal binding rule:, %v", err)
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}
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return string(b), nil
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}
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func (f *jsonFormatter) FormatBindingRuleList(rules []*api.ACLBindingRule) (string, error) {
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b, err := json.MarshalIndent(rules, "", " ")
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if err != nil {
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return "", fmt.Errorf("Failed to marshal binding rules:, %v", err)
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}
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return string(b), nil
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}
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