Class: StreamingUploader::MultipartStream

Inherits:
Object
  • Object
show all
Defined in:
lib/abicli/commands/upload-template.rb

Instance Method Summary collapse

Constructor Details

#initialize(parts, blk = nil) ⇒ MultipartStream

Returns a new instance of MultipartStream.



100
101
102
103
104
105
106
107
108
 
# File 'lib/abicli/commands/upload-template.rb', line 100

def initialize(parts, blk = nil)
  @callback = nil
  if blk
    @callback = blk
  end
  @parts = parts
  @part_no = 0
  @part_offset = 0
end

Instance Method Details

#read(how_much) ⇒ Object 



114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
 
# File 'lib/abicli/commands/upload-template.rb', line 114

def read(how_much)
  @callback.call(how_much) if @callback
  return nil if @part_no >= @parts.size

  how_much_current_part = @parts[@part_no].size - @part_offset
  
  how_much_current_part = if how_much_current_part > how_much
                            how_much
                          else
                            how_much_current_part
                          end
  
  how_much_next_part = how_much - how_much_current_part

  current_part = @parts[@part_no].read(@part_offset, how_much_current_part)
  
  # recurse into the next part if the current one was not large enough
  if how_much_next_part > 0
    @part_no += 1
    @part_offset = 0
    next_part = read(how_much_next_part)
    current_part + if next_part
                     next_part
                   else
                     ''
                   end
  else
    @part_offset += how_much_current_part
    current_part
  end
end

#size ⇒ Object 



110
111
112
 
# File 'lib/abicli/commands/upload-template.rb', line 110

def size
  @parts.inject(0) {|size, part| size + part.size}
end