# class Chef::Knife::Core::NodePresenter

## Chef::Knife::Core::NodePresenter¶ ↑

    A customized presenter for Chef::Node objects. Supports variable-length
    output formats for displaying node data

### Public Instance Methods

format(data) click to toggle source
Calls superclass method Chef::Knife::Core::GenericPresenter#format

    # File lib/chef/knife/core/node_presenter.rb, line 56
    def format(data)
      if parse_format_option == :json
        summarize_json(data)
      else
        super
      end
    end

key(key_text) click to toggle source

    # File lib/chef/knife/core/node_presenter.rb, line 129
    def key(key_text)
      ui.color(key_text, :cyan)
    end

summarize(data) click to toggle source

Converts a Chef::Node object to a string suitable for output to a terminal. If config or config are set the volume of output is adjusted accordingly. Uses colors if enabled in the ui object.

Calls superclass method Chef::Knife::Core::GenericPresenter#summarize

    # File lib/chef/knife/core/node_presenter.rb, line 90
            def summarize(data)
              if data.kind_of?(Chef::Node)
                node = data
                # special case ec2 with their split horizon whatsis.
                ip = (node[:ec2] && node[:ec2][:public_ipv4]) || node[:ipaddress]

                summarized=<<-SUMMARY
    #{ui.color('Node Name:', :bold)}   #{ui.color(node.name, :bold)}
    #{key('Environment:')} #{node.chef_environment}
    #{key('FQDN:')}        #{node[:fqdn]}
    #{key('IP:')}          #{ip}
    #{key('Run List:')}    #{node.run_list}
    #{key('Roles:')}       #{Array(node[:roles]).join(', ')}
    #{key('Recipes:')}     #{Array(node[:recipes]).join(', ')}
    #{key('Platform:')}    #{node[:platform]} #{node[:platform_version]}
    #{key('Tags:')}        #{Array(node[:tags]).join(', ')}
    SUMMARY
                if config[:medium_output] || config[:long_output]
                  summarized +=<<-MORE
    #{key('Attributes:')}
    #{text_format(node.normal_attrs)}
    MORE
                end
                if config[:long_output]
                  summarized +=<<-MOST
    #{key('Default Attributes:')}
    #{text_format(node.default_attrs)}
    #{key('Override Attributes:')}
    #{text_format(node.override_attrs)}
    #{key('Automatic Attributes (Ohai Data):')}
    #{text_format(node.automatic_attrs)}
    MOST
                end
                summarized
              else
                super
              end
            end

summarize_json(data) click to toggle source

    # File lib/chef/knife/core/node_presenter.rb, line 64
    def summarize_json(data)
      if data.kind_of?(Chef::Node)
        node = data
        result = {}

        result["name"] = node.name
        result["chef_environment"] = node.chef_environment
        result["run_list"] = node.run_list
        result["normal"] = node.normal_attrs

        if config[:long_output]
          result["default"]   = node.default_attrs
          result["override"]  = node.override_attrs
          result["automatic"] = node.automatic_attrs
        end

        Chef::JSONCompat.to_json_pretty(result)
      else
        Chef::JSONCompat.to_json_pretty(data)
      end
    end