Class: Chef::ChefFS::FileSystem::RestListDir

Inherits:
BaseFSDir show all
Defined in:
lib/chef/chef_fs/file_system/rest_list_dir.rb

Instance Attribute Summary collapse

Attributes inherited from BaseFSObject

#name, #parent, #path

Instance Method Summary collapse

Methods inherited from BaseFSDir

#dir?

Methods inherited from BaseFSObject

#chef_object, #compare_to, #delete, #dir?, #exists?, #path_for_printing, #read, #root, #write

Constructor Details

#initialize(name, parent, api_path = nil, data_handler = nil) ⇒ RestListDir

Returns a new instance of RestListDir.



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# File 'lib/chef/chef_fs/file_system/rest_list_dir.rb', line 27

def initialize(name, parent, api_path = nil, data_handler = nil)
  super(name, parent)
  @api_path = api_path || (parent.api_path == "" ? name : "#{parent.api_path}/#{name}")
  @data_handler = data_handler
end

Instance Attribute Details

#api_path ⇒ Object (readonly)

Returns the value of attribute api_path.



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# File 'lib/chef/chef_fs/file_system/rest_list_dir.rb', line 33

def api_path
  @api_path
end

#data_handler ⇒ Object (readonly)

Returns the value of attribute data_handler.



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# File 'lib/chef/chef_fs/file_system/rest_list_dir.rb', line 34

def data_handler
  @data_handler
end

Instance Method Details

#_make_child_entry(name, exists = nil) ⇒ Object 



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# File 'lib/chef/chef_fs/file_system/rest_list_dir.rb', line 109

def _make_child_entry(name, exists = nil)
  RestListEntry.new(name, self, exists)
end

#can_have_child?(name, is_dir) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/chef_fs/file_system/rest_list_dir.rb', line 42

def can_have_child?(name, is_dir)
  name =~ /\.json$/ && !is_dir
end

#child(name) ⇒ Object 



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# File 'lib/chef/chef_fs/file_system/rest_list_dir.rb', line 36

def child(name)
  result = @children.select { |child| child.name == name }.first if @children
  result ||= can_have_child?(name, false) ?
             _make_child_entry(name) : NonexistentFSObject.new(name, self)
end

#children ⇒ Object 



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# File 'lib/chef/chef_fs/file_system/rest_list_dir.rb', line 46

def children
  begin
    @children ||= root.get_json(api_path).keys.sort.map do |key|
      _make_child_entry("#{key}.json", true)
    end
  rescue Timeout::Error => e
    raise Chef::ChefFS::FileSystem::OperationFailedError.new(:children, self, e), "Timeout retrieving children: #{e}"
  rescue Net::HTTPServerException => e
    if $!.response.code == "404"
      raise Chef::ChefFS::FileSystem::NotFoundError.new(self, $!)
    else
      raise Chef::ChefFS::FileSystem::OperationFailedError.new(:children, self, e), "HTTP error retrieving children: #{e}"
    end
  end
end

#create_child(name, file_contents) ⇒ Object 



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# File 'lib/chef/chef_fs/file_system/rest_list_dir.rb', line 62

def create_child(name, file_contents)
  begin
    object = Chef::JSONCompat.parse(file_contents)
  rescue Chef::Exceptions::JSON::ParseError => e
    raise Chef::ChefFS::FileSystem::OperationFailedError.new(:create_child, self, e), "Parse error reading JSON creating child '#{name}': #{e}"
  end

  result = _make_child_entry(name, true)

  if data_handler
    object = data_handler.normalize_for_post(object, result)
    data_handler.verify_integrity(object, result) do |error|
      raise Chef::ChefFS::FileSystem::OperationFailedError.new(:create_child, self), "Error creating '#{name}': #{error}"
    end
  end

  begin
    rest.post(api_path, object)
  rescue Timeout::Error => e
    raise Chef::ChefFS::FileSystem::OperationFailedError.new(:create_child, self, e), "Timeout creating '#{name}': #{e}"
  rescue Net::HTTPServerException => e
    if e.response.code == "404"
      raise Chef::ChefFS::FileSystem::NotFoundError.new(self, e)
    elsif $!.response.code == "409"
      raise Chef::ChefFS::FileSystem::AlreadyExistsError.new(:create_child, self, e), "Failure creating '#{name}': #{path}/#{name} already exists"
    else
      raise Chef::ChefFS::FileSystem::OperationFailedError.new(:create_child, self, e), "Failure creating '#{name}': #{e.message}"
    end
  end

  @children = nil

  result
end

#environment ⇒ Object 



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# File 'lib/chef/chef_fs/file_system/rest_list_dir.rb', line 101

def environment
  parent.environment
end

#org ⇒ Object 



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# File 'lib/chef/chef_fs/file_system/rest_list_dir.rb', line 97

def org
  parent.org
end

#rest ⇒ Object 



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# File 'lib/chef/chef_fs/file_system/rest_list_dir.rb', line 105

def rest
  parent.rest
end