Class: CloudDoor::FileList

Inherits:
Object
  • Object
show all
Defined in:
lib/cloud_door/file_list.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(list_name, data_path, id = nil) ⇒ FileList

Returns a new instance of FileList.



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# File 'lib/cloud_door/file_list.rb', line 6

def initialize(list_name, data_path, id = nil)
  @list_name = list_name
  @data_path = data_path
  if (id.nil?)
    @list_file = @data_path + @list_name
  else
    list_dir = @data_path + "#{id}"
    unless File.exists?(list_dir)
      Dir.mkdir(list_dir)
    end
    @list_file = "#{list_dir}/#{@list_name}"
  end
  @list = nil
end

Instance Attribute Details

#list ⇒ Object (readonly)

Returns the value of attribute list.



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# File 'lib/cloud_door/file_list.rb', line 4

def list
  @list
end

#list_file ⇒ Object

Returns the value of attribute list_file.



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# File 'lib/cloud_door/file_list.rb', line 3

def list_file
  @list_file
end

#list_name ⇒ Object

Returns the value of attribute list_name.



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# File 'lib/cloud_door/file_list.rb', line 3

def list_name
  @list_name
end

Instance Method Details

#add_list(items, file_id, file_name) ⇒ Object 



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# File 'lib/cloud_door/file_list.rb', line 63

def add_list(items, file_id, file_name)
  return false if items.nil? || !items.is_a?(Hash)
  return false if file_id.nil? || file_id.empty?
  return false if file_name.nil? || file_name.empty?
  return false if load_list == false
  @list << {'id' => file_id, 'name' => file_name, 'items' => items}
  write_file
end

#add_list_top(items) ⇒ Object 



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# File 'lib/cloud_door/file_list.rb', line 56

def add_list_top(items)
  return false if items.nil? || !items.is_a?(Hash)
  @list = []
  @list << {'id' => 'top', 'name' => 'top', 'items' => items}
  write_file
end

#convert_name_to_id(mode, file_name = '') ⇒ Object 



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# File 'lib/cloud_door/file_list.rb', line 118

def convert_name_to_id(mode, file_name = '')
  return false if load_list == false
  return false unless %w(current parent target).include?(mode)
  send("convert_#{mode}_id", file_name)
end

#delete_file ⇒ Object 



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# File 'lib/cloud_door/file_list.rb', line 89

def delete_file
  File.delete(@list_file) if File.exist?(@list_file)
  true
rescue
  false
end

#load_list ⇒ Object 



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# File 'lib/cloud_door/file_list.rb', line 29

def load_list
  list = []
  if File.exist?(@list_file)
    marshal = File.open(@list_file).read
    list = Marshal.load(marshal)
    return false unless list.is_a?(Array)
  end
  @list = list
  true
end

#pull_current_dir ⇒ Object 



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# File 'lib/cloud_door/file_list.rb', line 100

def pull_current_dir
  return false if load_list == false
  return '/top' if @list.size < 2
  files = []
  @list.each { |part| files << part['name'] unless part['name'].nil? }
  '/' + files.join('/')
end

#pull_file_properties(file_name) ⇒ Object 



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# File 'lib/cloud_door/file_list.rb', line 108

def pull_file_properties(file_name)
  if @list.nil?
    return false if load_list == false
  end
  return false if @list.empty?
  items = @list.last['items']
  return false if items.empty? || !items.key?(file_name)
  items[file_name]
end

#pull_parent_id ⇒ Object 



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# File 'lib/cloud_door/file_list.rb', line 96

def pull_parent_id
  convert_name_to_id('current')
end

#remove_list(back) ⇒ Object 



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# File 'lib/cloud_door/file_list.rb', line 80

def remove_list(back)
  return false if load_list == false
  size = @list.size
  return false if back > size
  last = size - back
  @list = @list[0..last]
  write_file
end

#set_locate(id) ⇒ Object 



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# File 'lib/cloud_door/file_list.rb', line 21

def set_locate(id)
  list_dir = @data_path + "#{id}"
  unless File.exists?(list_dir)
    Dir.mkdir(list_dir)
  end
  @list_file = "#{list_dir}/#{@list_name}"
end

#top?(file_name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cloud_door/file_list.rb', line 124

def top?(file_name)
  back = (file_name.scan(CloudStorage::PARENT_DIR_PAT).size) + 1
  @list.count < back
end

#update_list(items) ⇒ Object 



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# File 'lib/cloud_door/file_list.rb', line 72

def update_list(items)
  return false if items.nil? || !items.is_a?(Hash)
  return false if load_list == false
  last_node = @list[-1]
  @list[-1] = {'id' => last_node['id'], 'name' => last_node['name'], 'items' => items}
  write_file
end

#write_file_list(items, file_id = '', file_name = '') ⇒ Object 



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# File 'lib/cloud_door/file_list.rb', line 40

def write_file_list(items, file_id = '', file_name = '')
  return false if load_list == false
  if @list.empty?
    add_list_top(items)
  elsif file_name =~ CloudStorage::PARENT_DIR_PAT
    back = file_name.scan(CloudStorage::PARENT_DIR_PAT).size + 1
    remove_list(back)
  else
    if file_name.nil? || file_name.empty?
      update_list(items)
    else
      add_list(items, file_id, file_name)
    end
  end
end