Class: Megam::DisksCollection

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/megam/core/disks_collection.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DisksCollection

Returns a new instance of DisksCollection.



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# File 'lib/megam/core/disks_collection.rb', line 6

def initialize
  @disks = Array.new
  @disks_by_name = Hash.new
  @insert_after_idx = nil
end

Instance Attribute Details

#iterator ⇒ Object (readonly)

Returns the value of attribute iterator.



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# File 'lib/megam/core/disks_collection.rb', line 5

def iterator
  @iterator
end

Class Method Details

.json_create(o) ⇒ Object 



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# File 'lib/megam/core/disks_collection.rb', line 101

def self.json_create(o)
  collection = self.new()
  o["results"].each do |disks_list|
    disks_array = disks_list.kind_of?(Array) ? disks_list : [ disks_list ]
    disks_array.each do |disks|
      collection.insert(disks)

    end
  end
  collection
end

Instance Method Details

#<<(*args) ⇒ Object Also known as: push 



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# File 'lib/megam/core/disks_collection.rb', line 26

def <<(*args)
  args.flatten.each do |a|
    is_megam_events(a)
    @disks << a
    @disks_by_name[a.] = @disks.length - 1
  end
  self
end

#[](index) ⇒ Object 



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# File 'lib/megam/core/disks_collection.rb', line 16

def [](index)
  @disks[index]
end

#[]=(index, arg) ⇒ Object 



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# File 'lib/megam/core/disks_collection.rb', line 20

def []=(index, arg)
  is_megam_disks(arg)
  @disks[index] = arg
  @disks_by_name[arg.] = index
end

#all_disks ⇒ Object 



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# File 'lib/megam/core/disks_collection.rb', line 12

def all_disks
  @disks
end

#each ⇒ Object 



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# File 'lib/megam/core/disks_collection.rb', line 57

def each
  @disks.each do |disks|
    yield disks
  end
end

#each_index ⇒ Object 



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# File 'lib/megam/core/disks_collection.rb', line 63

def each_index
  @disks.each_index do |i|
    yield i
  end
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/megam/core/disks_collection.rb', line 69

def empty?
  @disks.empty?
end

#for_json ⇒ Object 



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# File 'lib/megam/core/disks_collection.rb', line 93

def for_json
    to_a.map { |item| item.to_s }
end

#insert(disks) ⇒ Object 



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# File 'lib/megam/core/disks_collection.rb', line 38

def insert(disks)
  is_megam_disks(disks)
  if @insert_after_idx
    # in the middle of executing a run, so any nodes inserted now should
    # be placed after the most recent addition done by the currently executing
    # node
    @disks.insert(@insert_after_idx + 1, disks)
    # update name -> location mappings and register new node
    @disks_by_name.each_key do |key|
    @disks_by_name[key] += 1 if @disks_by_name[key] > @insert_after_idx
    end
    @disks_by_name[disks.] = @insert_after_idx + 1
    @insert_after_idx += 1
  else
  @disks << disks
  @disks_by_name[disks.] = @disks.length - 1
  end
end

#lookup(disks) ⇒ Object 



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# File 'lib/megam/core/disks_collection.rb', line 73

def lookup(disks)
  lookup_by = nil
  if events.kind_of?(Megam::Disks)
  lookup_by = disks.
elsif disks.kind_of?(String)
  lookup_by = disks
  else
    raise ArgumentError, "Must pass a Megam::Disks or String to lookup"
  end
  res = @disks_by_name[lookup_by]
  unless res
    raise ArgumentError, "Cannot find a node matching #{lookup_by} (did you define it first?)"
  end
  @disks[res]
end

#to_json(*a) ⇒ Object 



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# File 'lib/megam/core/disks_collection.rb', line 97

def to_json(*a)
    Megam::JSONCompat.to_json(for_json, *a)
end

#to_s ⇒ Object 



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# File 'lib/megam/core/disks_collection.rb', line 89

def to_s
    @disks.join(", ")
end