Class: EPIC::Handle

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# File 'src/epic_handle.rb', line 168

def self.enforce_proper_indexes values
  all_indexes = []
  values.each do
    |value|
    next if HS::EMPTY_HANDLE_VALUE.getIndex == value.idx
    raise( Rackful::HTTP400BadRequest, "Multiple values with index #{value.idx}" ) \
      if all_indexes.member? value.idx
    all_indexes << value.idx
  end
  current_index = 1
  values.each do
    |value|
    next unless HS::EMPTY_HANDLE_VALUE.getIndex == value.idx
    current_index = current_index + 1 while all_indexes.member? current_index
    value.idx = current_index
    all_indexes << current_index
  end
  values
end

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# File 'src/epic_handle.rb', line 82

def do_PUT request, response
  begin
    handle_values_in = Rackful::JSON.parse( request.body )
  rescue
    raise Rackful::HTTP400BadRequest, $!.to_s
  end # begin
  raise Rackful::HTTP400BadRequest, 'Array expected' \
    unless handle_values_in.kind_of? Array
  new_values = handle_values_in.collect do
    |handle_value_in|
    handle_value = HandleValue.new
    handle_value.idx = handle_value_in[:idx].to_i \
      if handle_value_in.key? :idx
    handle_value.type = handle_value_in[:type].to_s \
      if handle_value_in.key? :type
    handle_value.data = Base64.decode64( handle_value_in[:data].to_s ) \
      if handle_value_in.key? :data
    if handle_value_in.key?( :data ) &&
       handle_value_in.key?( :parsed_data )
      data = handle_value.data
      parsed_data = handle_value.parsed_data
      handle_value.parsed_data = handle_value_in[:parsed_data]
      unless data == handle_value.data ||
             parsed_data == handle_value.parsed_data
        raise Rackful::HTTP400, 'Handle Value contains both <tt>data</tt> and <tt>parsed_data</tt>, and their contents are not semantically equal.'
      end # unless
    elsif handle_value_in.key?( :parsed_data )
      handle_value.parsed_data = handle_value_in[:parsed_data]
    end # if
    handle_value.ttl_type = handle_value_in[:ttl_type].to_i \
      if handle_value_in.key? :ttl_type
    handle_value.ttl = handle_value_in[:ttl].to_i \
      if handle_value_in.key? :ttl
    handle_value.refs = handle_value_in[:refs] \
      if handle_value_in[:refs].kind_of?( Array ) &&
         handle_value_in[:refs].all? do
           |ref|
           ref.kind_of?( Hash ) &&
           ref[:idx].kind_of?( Integer ) &&
           ref[:handle].kind_of?( String )
         end
    handle_value.admin_read = !!handle_value_in[:admin_read] \
      if handle_value_in.key? :admin_read
    handle_value.admin_write = !!handle_value_in[:admin_write] \
      if handle_value_in.key? :admin_write
    handle_value.pub_read = !!handle_value_in[:pub_read] \
      if handle_value_in.key? :pub_read
    handle_value.pub_write = !!handle_value_in[:pub_write] \
      if handle_value_in.key? :pub_write
    handle_value
  end # values = handle_values_in.collect do
  self.class.enforce_proper_indexes new_values
  self.class.enforce_admin_record new_values, request.env['REMOTE_USER']
  self.lock
  begin
    @values = nil
    if self.empty?
      HS.create_handle(self.handle, new_values, request.env['REMOTE_USER'])
      @values = nil
      raise Rackful::HTTP201Created, self.path
    else
      HS.update_handle(self.handle, self.values, new_values, request.env['REMOTE_USER'])
      @values = nil
      response.status = status_code(:no_content)
    end
  ensure
    self.unlock
  end
end

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# File 'src/epic_handle.rb', line 269

def empty?
  self.values.empty?
end

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# File 'src/epic_handle.rb', line 291

def get_etag
  retval = self.values.sort_by do
    |value| value.idx
  end.reduce(Digest::MD5.new) do
    |digest, value|
    digest <<
      value.idx.inspect <<
      value.type.inspect <<
      value.data.inspect <<
      value.refs.inspect <<
      value.ttl.inspect <<
      value.ttl_type.inspect <<
      value.admin_read.inspect <<
      value.admin_write.inspect <<
      value.pub_read.inspect <<
      value.pub_write.inspect
  end.to_s
  retval = [ retval ].pack('H*')
  '"' + Base64.strict_encode64(retval)[0..-3] + '"'
end

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# File 'src/epic_handle.rb', line 276

def get_last_modified
  [
    Time.at(
      self.values.reduce(0) do
        |memo, value|
        value.timestamp > memo ? value.timestamp : memo
      end
    ),
    false # to indicate that this is _not_ a strong validator.
  ]
end

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# File 'src/epic_handle.rb', line 245

def to_rackful
  self.values.sort_by { |v| v.idx }.collect {
    |v|
    {
      :idx => v.idx,
      :type => v.type,
      :parsed_data => v.parsed_data,
      :data => v.data,
      :timestamp => Time.at(v.timestamp),
      :ttl_type => v.ttl_type,
      :ttl => ( 0 == v.ttl_type ? v.ttl : Time.at( v.ttl ) ),
      :refs => v.refs.collect { |ref| ref[:idx].to_s + ':' + ref[:handle] },
      :privs =>
        ( v.admin_read  ? 'r' : '-' ) +
        ( v.admin_write ? 'w' : '-' ) +
        ( v.pub_read    ? 'r' : '-' ) +
        ( v.pub_write   ? 'w' : '-' )
    }
  }
end