Class: SimpleStack::Hypervisor

Inherits:
Object
  • Object
show all
Includes:
Cacheable
Defined in:
lib/simple_stack/hypervisor.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Cacheable

#cacheable?, #cached_attributes, #reload

Constructor Details

#initialize(connection, type, options) ⇒ Hypervisor

Returns a new instance of Hypervisor.



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# File 'lib/simple_stack/hypervisor.rb', line 7

def initialize(connection, type, options)
  self.connection = connection
  self.type = type
  self.host = options[:host]
  self.username = options[:username]
  self.password = options[:password]
end

Instance Attribute Details

#connection ⇒ Object

Returns the value of attribute connection.



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# File 'lib/simple_stack/hypervisor.rb', line 5

def connection
  @connection
end

#host ⇒ Object

Returns the value of attribute host.



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# File 'lib/simple_stack/hypervisor.rb', line 5

def host
  @host
end

#password ⇒ Object

Returns the value of attribute password.



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# File 'lib/simple_stack/hypervisor.rb', line 5

def password
  @password
end

#type ⇒ Object

Returns the value of attribute type.



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# File 'lib/simple_stack/hypervisor.rb', line 5

def type
  @type
end

#username ⇒ Object

Returns the value of attribute username.



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# File 'lib/simple_stack/hypervisor.rb', line 5

def username
  @username
end

Instance Method Details

#delete(url) ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 119

def delete(url)
  http_call { HTTParty.delete(url, http_options) }
end

#get(url) ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 72

def get(url)
  http_call { HTTParty.get(url, http_options) }
end

#get_stream(url, io) ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 76

def get_stream(url, io)
  uri  = URI.parse url
  http = Net::HTTP.new(uri.host, uri.port)
  request = Net::HTTP::Get.new(uri.path)

  headers.each_pair do |k, v|
    request.add_field(k, v)
  end

  http.request(request) do |res|
    res.read_body {|chunk| io.write chunk }
  end
end

#guests ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 53

def guests
  cached_attributes[:guests] ||= SimpleStack::Collection.new self, self, "#{url}/guests", SimpleStack::Guest
end

#headers ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 19

def headers
  {
    "x-simplestack-version" => "1.0",
    "x-simplestack-token"   => connection.token,
    "x-simplestack-hypervisor-token" => token,
    "Content-Type" => "application/json"
  }
end

#hosts ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 45

def hosts
  cached_attributes[:hosts] ||= SimpleStack::Collection.new self, self, "#{url}/hosts", SimpleStack::Host
end

#http_call ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 123

def http_call
  response = yield
  return SimpleStack::GracefulObject.new if response.code == 501 && connection.graceful_degradation
  raise SimpleStack::Exception.factory(response.parsed_response) if response.code >= 400
  response
end

#http_options ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 28

def http_options
  {
    :timeout => connection.timeout,
    :read_timeout => connection.read_timeout,
    :no_follow => true,
    :headers => headers
  }
end

#import(opts = {}) ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 61

def import(opts={})
  file = File.open(opts[:from], "rb")

  response = post_stream("#{url}/guests", file)
  entity_path = response["location"].sub(/^\//, "").sub(/\/$/, "")
  entity_url = "#{connection.url}/#{entity_path}"
  SimpleStack::Guest.new self, guests.reload, entity_url
ensure
  file.close rescue nil
end

#info ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 41

def info
  cached_attributes[:info] ||= self.get url
end

#inspect ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 130

def inspect
  "#<#{self.class} url=#{url}>"
end

#networks ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 57

def networks
  cached_attributes[:networks] ||= SimpleStack::Collection.new self, self, "#{url}/networks", SimpleStack::Network
end

#post(url, body) ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 90

def post(url, body)
  http_call { HTTParty.post(url, http_options.merge(:body => JSON.dump(body))) }
end

#post_stream(url, io) ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 98

def post_stream(url, io)
  uri  = URI.parse url
  http = Net::HTTP.new(uri.host, uri.port)
  request = Net::HTTP::Post.new(uri.path, {})

  headers.each_pair do |k, v|
    request.add_field(k, v)
  end

  request.body_stream = io
  request.content_length = io.size
  response = http.request(request)

  if response.code.to_i >= 400
    parsed_response = JSON.load(response.body) rescue response.body
    raise SimpleStack::Exception.factory(parsed_response)
  end

  response
end

#put(url, body) ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 94

def put(url, body)
  http_call { HTTParty.put(url, http_options.merge(:body => JSON.dump(body))) }
end

#storages ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 49

def storages
  cached_attributes[:storages] ||= SimpleStack::Collection.new self, self, "#{url}/storages", SimpleStack::Storage
end

#token ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 37

def token
  Base64.encode64("#{username}:#{password}").split("\n").join("")
end

#url ⇒ Object 



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# File 'lib/simple_stack/hypervisor.rb', line 15

def url
  "#{connection.url}/#{type}/#{host}"
end