Class: Razor::CLI::Navigate

Inherits:
Object
  • Object
show all
Defined in:
lib/razor/cli/navigate.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parse, segments) ⇒ Navigate

Returns a new instance of Navigate.



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# File 'lib/razor/cli/navigate.rb', line 8

def initialize(parse, segments)
  @parse = parse
  @segments = segments||[]
  @doc = entrypoint
  @doc_url = parse.api_url
end

Class Method Details

.annotations ⇒ Object 



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# File 'lib/razor/cli/navigate.rb', line 121

def self.annotations
  @@annotations ||=
    YAML::load_file(File::join(File::dirname(__FILE__), "navigate.yaml"))
end

.arg_type(cmd_name, arg_name) ⇒ Object 



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# File 'lib/razor/cli/navigate.rb', line 126

def self.arg_type(cmd_name, arg_name)
  cmd = annotations["commands"][cmd_name]
  cmd && cmd["args"][arg_name]
end

Instance Method Details

#collections ⇒ Object 



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# File 'lib/razor/cli/navigate.rb', line 23

def collections
  entrypoint["collections"]
end

#command(name) ⇒ Object 



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# File 'lib/razor/cli/navigate.rb', line 35

def command(name)
  commands.find { |coll| coll["name"] == name }
end

#command? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/razor/cli/navigate.rb', line 39

def command?
  !! command(@segments.first)
end

#commands ⇒ Object 



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# File 'lib/razor/cli/navigate.rb', line 27

def commands
  entrypoint["commands"]
end

#entrypoint ⇒ Object 



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# File 'lib/razor/cli/navigate.rb', line 19

def entrypoint
  @entrypoint ||= json_get(@parse.api_url)
end

#extract_command ⇒ Object 



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# File 'lib/razor/cli/navigate.rb', line 62

def extract_command
  cmd = command(@segments.shift)
  body = {}
  until @segments.empty?
    if @segments.shift =~ /\A--([a-z-]+)(=(\S+))?\Z/
      body[$1] = convert_arg(cmd["name"], $1, ($3 || @segments.shift))
    end
  end

  body = JSON::parse(File::read(body["json"])) if body["json"]
  [cmd, body]
end

#get(url, headers = {}) ⇒ Object 



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# File 'lib/razor/cli/navigate.rb', line 99

def get(url, headers={})
  response = RestClient.get url.to_s, headers
  puts "GET #{url.to_s}\n#{response.body}" if @parse.dump_response?
  response
end

#get_document ⇒ Object 



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# File 'lib/razor/cli/navigate.rb', line 43

def get_document
  if @segments.empty?
    entrypoint
  elsif query?
    @doc = collections
    while @segments.any?
      move_to @segments.shift
    end
    @doc
  elsif command?
    # @todo lutter 2013-08-16: None of this has any tests, and error
    # handling is heinous at best
    cmd, body = extract_command
    json_post(cmd["id"], body)
  else
    raise NavigationError.new(@doc_url, @segments, @doc)
  end
end

#json_get(url, headers = {}) ⇒ Object 



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# File 'lib/razor/cli/navigate.rb', line 105

def json_get(url, headers = {})
  response = get(url,headers.merge(:accept => :json))
  unless response.headers[:content_type] =~ /application\/json/
   raise "Received content type #{response.headers[:content_type]}"
  end
  JSON.parse(response.body)
end

#json_post(url, body) ⇒ Object 



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# File 'lib/razor/cli/navigate.rb', line 113

def json_post(url, body)
  headers = {  :accept=>:json, "Content-Type" => :json }
  response = RestClient.post url, body.to_json, headers
  puts "POST #{url.to_s}\n#{body}\n-->\n#{response.body}" if @parse.dump_response?
  JSON::parse(response.body)
end

#last_url ⇒ Object 



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# File 'lib/razor/cli/navigate.rb', line 15

def last_url
  @doc_url
end

#move_to(key) ⇒ Object

Raises:



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# File 'lib/razor/cli/navigate.rb', line 75

def move_to(key)
  key = key.to_i if key.to_i.to_s == key
  if @doc.is_a? Array
    obj = @doc.find {|x| x.is_a?(Hash) and x["name"] == key }
  elsif @doc.is_a? Hash
    obj = @doc[key]
  end

  raise NavigationError.new(@doc_url, key, @doc) unless obj

  if obj.is_a?(Hash) && obj["id"]
    @doc = json_get(obj["id"])
    # strip the wrapper around collections
    if @doc.is_a? Hash and @doc["items"].is_a? Array
      @doc = @doc["items"]
    end
    @doc_url = obj["id"]
  elsif obj.is_a? Hash
    @doc = obj
  else
    @doc = nil
  end
end

#query? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/razor/cli/navigate.rb', line 31

def query?
  collections.any? { |coll| coll["name"] == @segments.first }
end