Class: EPIC::Resource

Inherits:

Object

• Object
• EPIC::Resource

show all

Includes:

Rackful::Resource

Defined in:

src/epic_resource.rb

Overview

Constant Summary

GLOBAL_LOCK_MUTEX =

Mutex.new

GLOBAL_LOCK_HASH =

{}

Instance Attribute Summary

Attributes included from Rackful::Resource

#get_etag, #get_last_modified, #path

Class Method Summary (collapse)

• + (void) lock(path, unlock)

Instance Method Summary (collapse)

• - (Resource) initialize(path) constructor

  A new instance of Resource.

• - (void) lock(unlock = false)
• - (void) unlock
• - (void) xhtml

Methods included from Rackful::Resource

#default_headers, #destroy, #do_METHOD, #empty?, #http_DELETE, #http_GET, #http_HEAD, #http_OPTIONS, #http_PUT, #http_method, #http_methods, included, #requested?, #serializer, #title, #to_rackful, #to_struct

86
87
88

# File 'src/epic_resource.rb', line 86

def initialize path
  self.path = path
end

101
102
103
104
105
106
107
108
109
110
111

# File 'src/epic_resource.rb', line 101

def self.lock path, unlock
  GLOBAL_LOCK_MUTEX.synchronize do
    if unlock
      GLOBAL_LOCK_HASH.delete path
    elsif GLOBAL_LOCK_HASH[path]
      raise HTTP503ServiceUnavailable, 'Another client is modifying the resource.'
    else
      GLOBAL_LOCK_HASH[path] = true
    end
  end
end

91
92
93

# File 'src/epic_resource.rb', line 91

def lock unlock = false
  self.class.lock self.path, unlock
end

96
97
98

# File 'src/epic_resource.rb', line 96

def unlock
  self.lock true
end

114

# File 'src/epic_resource.rb', line 114

def xhtml; ''; end