Class: Comana::HostSelector

Inherits:
Object
  • Object
show all
Defined in:
lib/comana/hostselector.rb

Defined Under Namespace

Classes: NoEntryError

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(groups_hosts) ⇒ HostSelector

Argument ‘groups_hosts’ should be a hash; the keys are group name, and the value is the hostnames of the member.



14
15
16
 
# File 'lib/comana/hostselector.rb', line 14

def initialize(groups_hosts)
  @groups_hosts = groups_hosts
end

Class Method Details

.load_file(file = Comana::ClusterSetting::DEFAULT_DATA_FILE) ⇒ Object 



18
19
20
21
22
23
24
25
26
 
# File 'lib/comana/hostselector.rb', line 18

def self.load_file(file = Comana::ClusterSetting::DEFAULT_DATA_FILE)
  #pp Comana::ClusterSetting::DEFAULT_DATA_FILE
  yaml = YAML.load_file(file)
  groups_hosts = {}
  yaml["groups"].each do |key, val|
    groups_hosts[key] = val["members"]
  end
  self.new(groups_hosts)
end

Instance Method Details

#groups ⇒ Object

Return all groups with sorted order.



40
41
42
 
# File 'lib/comana/hostselector.rb', line 40

def groups
  @groups_hosts.keys.sort
end

#select_all ⇒ Object

Return all hosts included with sorted order.



29
30
31
 
# File 'lib/comana/hostselector.rb', line 29

def select_all
  @groups_hosts.values.flatten.delete_if{|v| v == nil}.sort
end

#select_group(group) ⇒ Object

Return member hosts in indicated group.

Raises:



34
35
36
37
 
# File 'lib/comana/hostselector.rb', line 34

def select_group(group)
  raise NoEntryError unless @groups_hosts.keys.include? group
  @groups_hosts[group]
end