Class: HP::Cloud::Metadata

Inherits:
Object
  • Object
show all
Defined in:
lib/hpcloud/metadata.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(mta = nil) ⇒ Metadata

Returns a new instance of Metadata.



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# File 'lib/hpcloud/metadata.rb', line 33

def initialize(mta = nil)
  @cstatus = CliStatus.new
  @fog_metadata = mta
  @hsh = {}
  if mta.nil?
    return
  end
  mta.map { |m| @hsh["#{m.key}"] = "#{m.value}" }
end

Instance Attribute Details

#cstatus ⇒ Object (readonly)

Returns the value of attribute cstatus.



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# File 'lib/hpcloud/metadata.rb', line 27

def cstatus
  @cstatus
end

#hsh ⇒ Object (readonly)

Returns the value of attribute hsh.



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# File 'lib/hpcloud/metadata.rb', line 27

def hsh
  @hsh
end

Class Method Details

.get_keys ⇒ Object 



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# File 'lib/hpcloud/metadata.rb', line 29

def self.get_keys()
  return [ "key", "value" ]
end

Instance Method Details

#remove_metadata(key) ⇒ Object 



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# File 'lib/hpcloud/metadata.rb', line 85

def remove_metadata(key)
  pair = nil
  if ! @fog_metadata.nil?
    pair = @fog_metadata.get(key)
  end
  if pair.nil?
    @cstatus = CliStatus.new("Metadata key '#{key}' not found", :not_found)
  else
    begin
      pair.destroy
    rescue Exception => e
      @cstatus = CliStatus.new("Error deleting metadata '#{key}': " + e.message)
    end
  end
  if @cstatus.is_success?
    return true
  end
  return false
end

#set_metadata(value) ⇒ Object 



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# File 'lib/hpcloud/metadata.rb', line 50

def set_metadata(value)
  if value.nil?
    return true
  end
  if value.empty?
    @hsh = {}
    return true
  end
  begin
    hshstr = '{"' + value.gsub('=', '"=>"').gsub(',', '","') + '"}'
    hsh = eval(hshstr)
    if (hsh.kind_of? Hash)
      @hsh = hsh
      unless @fog_metadata.nil?
        @hsh.each { |k,v|
          pair = @fog_metadata.get(k)
          if pair.nil?
            pair = @fog_metadata.new
            pair.key = k
            pair.value = v
          else
            pair.value = v
          end
          pair.save
        }
      end
      return true
    end
  rescue SyntaxError => se
  rescue NameError => ne
  end
  @cstatus = CliStatus.new("Invalid metadata '#{value}' should be in the form 'k1=v1,k2=v2,...'", :incorrect_usage)
  return false
end

#to_array ⇒ Object 



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# File 'lib/hpcloud/metadata.rb', line 43

def to_array()
  ray = []
  @hsh.each { |k,v| ray << {"key"=>k,"value"=>v} }
  ray.sort!{|a, b| a["key"] <=> b["key"]}
  return ray
end

#to_s ⇒ Object 



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# File 'lib/hpcloud/metadata.rb', line 105

def to_s
  found=false
  metadata=""
  ray = to_array()
  ray.each { |val|
    metadata << "," unless found == false
    metadata << val["key"].to_s + "=" + val["value"].to_s
    found = true
  }
  return metadata
end