Class: HP::Cloud::FogCollection

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, article = 'a') ⇒ FogCollection

Returns a new instance of FogCollection.



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# File 'lib/hpcloud/fog_collection.rb', line 30

def initialize(name, article='a')
  @name = name
  @article = article
  @connection = Connection.instance
end

Instance Attribute Details

#items ⇒ Object (readonly)

Returns the value of attribute items.



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# File 'lib/hpcloud/fog_collection.rb', line 28

def items
  @items
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/hpcloud/fog_collection.rb', line 28

def name
  @name
end

Instance Method Details

#create(item = nil) ⇒ Object 



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# File 'lib/hpcloud/fog_collection.rb', line 110

def create(item = nil)
  return item
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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

def empty?
  return true if @items.nil?
  return @items.empty?
end

#filter(arguments = [], multimatch = true) ⇒ Object 



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# File 'lib/hpcloud/fog_collection.rb', line 40

def filter(arguments = [], multimatch=true)
  if @ray.nil?
    @ray = []
    @items.each { |x| @ray << create(x) }
  end
  if (arguments.empty?)
    return @ray
  end
  retray = []
  arguments.each { |arg|
    found = []
    @ray.each { |item|
      if matches(arg, item)
        if (multimatch == true)
          found << item
        else
          if found.length == 0
            found << item
          else
            if found[0].respond_to?(:set_error)
              found[0].set_error("More than one #{@name} matches '#{arg}', use the id instead of name.")
            else
              raise HP::Cloud::Exceptions::General.new("More than one #{@name} matches '#{arg}', use the id instead of name.")
            end
          end
        end
      end
    }
    if found.length == 0
      item = create()
      if item.nil?
        raise HP::Cloud::Exceptions::NotFound.new("Cannot find #{@article} #{@name} matching '#{arg}'.")
      end
      if item.respond_to?(:name)
        item.name = arg
      end
      item.set_error("Cannot find #{@article} #{@name} matching '#{arg}'.", :not_found)
      retray << item
    else
      retray += found
    end
  }
  return retray
end

#get(arguments = [], multimatch = true) ⇒ Object 



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

def get(arguments = [], multimatch=true)
  if arguments.kind_of?(Array)
    return filter(arguments, multimatch)
  end
  return filter([arguments], false).first
end

#get_array(arguments = []) ⇒ Object 



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# File 'lib/hpcloud/fog_collection.rb', line 92

def get_array(arguments = [])
  ray = []
  get(arguments, true).each { |x|
    if x.respond_to?(:to_hash)
      hsh = x.to_hash()
    else
      hsh = Hash[x.attributes.map{ |k, v| [k.to_s, v] }]
    end
    ray << hsh unless hsh.nil?
  }
  return ray
end

#matches(arg, item) ⇒ Object 



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# File 'lib/hpcloud/fog_collection.rb', line 36

def matches(arg, item)
  return ((arg == item.id.to_s) || (arg == item.name.to_s))
end

#unique(name) ⇒ Object 



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# File 'lib/hpcloud/fog_collection.rb', line 114

def unique(name)
  begin
    get(name)
    raise HP::Cloud::Exceptions::General.new("A #{@name} with the name '#{name}' already exists")
  rescue HP::Cloud::Exceptions::NotFound => e
  end
  return nil
end