Class: SystemService

Inherits:
String
  • Object
show all
Includes:
Indexable
Defined in:
lib/yasysdui/system_service.rb

Direct Known Subclasses

SystemServiceLegacy

Constant Summary collapse

@@cmd_info = 
"sudo systemctl status"
@@descr_rgx = 
/\A.+\.service\s+-\s+([[:print:]]+)\Z/
@@descr_masked_rgx = 
/\A.+\.service\Z/
@@loaded_rgx = 
/\ALoaded:\s+([[:graph:]]+)\s+\((.*)\)\Z/
@@active_rgx = 
/\AActive:\s+([[:graph:]]+)\s+\(([[:graph:]]+)\).*\Z/
@@warning_rgx = 
/\AWarning:/
@@status_read_failed_rgx = 
Regexp.new('\AFailed to get properties:.*\Z')
@@status_unit_notfound_rgx = 
Regexp.new('\AUnit\s[[:graph:]]+\scould\snot\sbe\sfound.\Z')

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Indexable

#each_word, #each_wordstart

Constructor Details

#initialize(str) ⇒ SystemService

default constructor, takes unit name



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# File 'lib/yasysdui/system_service.rb', line 117

def initialize(str)
   super(str)
   @overrides_legacy = false
end

Instance Attribute Details

#active ⇒ Object

Returns the value of attribute active.



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# File 'lib/yasysdui/system_service.rb', line 9

def active
  @active
end

#descr ⇒ Object

Returns the value of attribute descr.



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# File 'lib/yasysdui/system_service.rb', line 6

def descr
  @descr
end

#filename_full ⇒ Object

Returns the value of attribute filename_full.



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# File 'lib/yasysdui/system_service.rb', line 12

def filename_full
  @filename_full
end

#load ⇒ Object

Returns the value of attribute load.



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# File 'lib/yasysdui/system_service.rb', line 8

def load
  @load
end

#overrides_legacy ⇒ Object

Returns the value of attribute overrides_legacy.



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# File 'lib/yasysdui/system_service.rb', line 11

def overrides_legacy
  @overrides_legacy
end

#state ⇒ Object

Returns the value of attribute state.



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# File 'lib/yasysdui/system_service.rb', line 7

def state
  @state
end

#sub ⇒ Object

Returns the value of attribute sub.



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# File 'lib/yasysdui/system_service.rb', line 10

def sub
  @sub
end

Instance Method Details

#each_sentence {|self.to_str| ... } ⇒ Object

This provides the texts to index (module Indexable)

Yields:

  • (self.to_str) 


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# File 'lib/yasysdui/system_service.rb', line 27

def each_sentence
	yield self.to_str
	yield @descr unless  @descr.nil?
end

#handle_masked_info ⇒ Object 



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# File 'lib/yasysdui/system_service.rb', line 70

def handle_masked_info
     if self.state == 'masked'
         @load = 'masked'
         @active = 'inactive'
         @sub = 'dead'
         true
     else
false
     end   
end

#native? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/yasysdui/system_service.rb', line 131

def native?
   true
end

#native_info ⇒ Object 



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# File 'lib/yasysdui/system_service.rb', line 121

def native_info
# yes+   : native and overrides init script
# yes    : native and no init script
# no     : init script   
  if    self.native?
     @overrides_legacy ? "yes+" : "yes"
  else
		"no"
  end
end

#parse_status_info ⇒ Object 



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# File 'lib/yasysdui/system_service.rb', line 31

def parse_status_info
     match = nil
		return if self.handle_masked_info
     info_tab = @status_info_raw.lines.reject{|l| @@warning_rgx.match(l) }
     info_tab.map!{|r| r.strip}
     if @@status_read_failed_rgx.match(info_tab[0])
         return nil
     end    
    if @@status_unit_notfound_rgx.match(info_tab[0])
         return nil
     end                
     if match = @@descr_rgx.match(info_tab[0])
         self.descr = match[1]
     else
# masked script/service without description returned     
         if match = @@descr_masked_rgx.match(info_tab[0])
         else
             puts info_tab[0]
             raise "Failed parsing line printed above"
         end

     end 
# complete data
     if match
         match = @@loaded_rgx.match(info_tab[1])
         if match 
             self.load = match[1]  
             load_info = match[2].split(';')
             self.filename_full = load_info[0]
             self.state = load_info[1]
         end    
         match = @@active_rgx.match(info_tab[2].strip)
         if match
             self.active = match[1]   
             self.sub = match[2]
         end
     end

end

#read_state ⇒ Object 



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# File 'lib/yasysdui/system_service.rb', line 92

def read_state
     return nil if self.end_with?("@")
     match = nil
		stdout_str, status = Open3.capture2("#@@cmd_info #{self.to_s}" )
		if stdout_str.lines.size > 0

         info_tab = stdout_str.lines.reject{|l| @@warning_rgx.match(l) }
         if @@status_read_failed_rgx.match(info_tab[0].strip)
             return nil
         end            
         match = @@loaded_rgx.match(info_tab[1].strip)
         if match 
             load_info = match[2].split(';')
             self.filename_full = load_info[0]
             self.state = load_info[1]
         end    
             

     else
          puts "Failed getting service state info for"
          pp self
           
     end
end

#read_status_info ⇒ Object 



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# File 'lib/yasysdui/system_service.rb', line 80

def read_status_info
     return nil if self.end_with?("@")
     return if self.handle_masked_info
		@status_info_raw, status = Open3.capture2("#@@cmd_info #{self.to_s}" )
		if @status_info_raw.lines.size > 0
         self.parse_status_info
     else
# TODO: a more decent error handling...        
          puts "Failed getting service status info for"
          pp self
     end
end

#set_status_info_from_output(action_output) ⇒ Object 



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# File 'lib/yasysdui/system_service.rb', line 22

def set_status_info_from_output( action_output )
     @status_info_raw = action_output
     self.parse_status_info
end