1 # -*- encoding: binary -*-
2 # here are internal implementation details, do not rely on them in your code
4 require 'net/http/persistent'
7 'net-http-persistent required for :largefile => :content_range', []
10 require 'mogilefs/new_file/writer'
13 class MogileFS::NewFile::ContentRange
14 include MogileFS::NewFile::Writer
15 include MogileFS::NewFile::Common
17 NHP = Net::HTTP::Persistent.new('mogilefs')
20 def initialize(dests, opts) # :nodoc:
23 @devid = @uri = @md5 = nil
28 def get_dest # :nodoc:
29 return [ @devid, @uri ] if @uri
30 rv = @dests.shift or no_nodes!
31 rv[1] = URI.parse(rv[1])
35 def no_nodes! # :nodoc:
36 raise NoStorageNodesError,
37 "all paths failed with PUT: #{@errors.join(', ')}", []
40 def request_for(uri, buf) # :nodoc:
41 put = Net::HTTP::Put.new(uri.path)
42 put["Content-Type"] = "application/octet-stream"
43 put["Content-MD5"] = [ Digest::MD5.digest(buf) ].pack("m").chomp!
44 if @bytes_uploaded > 0
45 last_byte = @bytes_uploaded + buf.bytesize - 1
46 put["Content-Range"] = "bytes #@bytes_uploaded-#{last_byte}/*"
60 put = request_for(uri, buf)
62 NHP.request(uri, put).value # raises on error
64 raise if @bytes_uploaded > 0
66 # nothing uploaded, try another dest
67 @errors << "#{uri.to_s} - #{e.message} (#{e.class})"
69 put = request_for(uri, buf)
73 @uri, @devid = uri, devid if 0 == @bytes_uploaded
74 @bytes_uploaded += len
78 # called on close, do not use
80 zero_byte_special if @bytes_uploaded == 0
82 create_close(@devid, @uri, @bytes_uploaded)
85 # special case for zero-byte files :<
86 def zero_byte_special # :nodoc:
87 @devid, @uri = get_dest
88 put = request_for(@uri, "")
90 NHP.request(@uri, put).value # raises on error
92 @errors << "#{@uri.to_s} - #{e.message} (#{e.class})"
93 @devid, @uri = get_dest
94 put = request_for(@uri, "")
98 end if defined?(Net::HTTP::Persistent)