Class: RServiceBus::StateStorage_Dir

Inherits:
Object
  • Object
show all
Defined in:
lib/rservicebus/StateStorage/Dir.rb

Instance Method Summary collapse

Constructor Details

#initialize(uri) ⇒ StateStorage_Dir

Returns a new instance of StateStorage_Dir.



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# File 'lib/rservicebus/StateStorage/Dir.rb', line 5

def initialize( uri )
    @stateDir = uri.path
    
    inputDir = Dir.new( @stateDir )
    unless File.writable?(@stateDir) then
      puts "***** Directory is not writable, #{@stateDir}."
      puts "***** Make the directory, #{@stateDir}, writable and try again."
      puts '***** Or, set the State Directory explicitly by, STATE_URI=<dir://path/to/state>'
      abort();
    end
    rescue Errno::ENOENT => e
    puts "***** Directory does not exist, #{@stateDir}."
    puts "***** Create the directory, #{@stateDir}, and try again."
    puts "***** eg, mkdir #{@stateDir}"
    puts '***** Or, set the State Directory explicitly by, STATE_URI=<dir://path/to/state>'
    abort();
    rescue Errno::ENOTDIR => e
    puts "***** The specified path does not point to a directory, #{@stateDir}."
    puts "***** Either repoint path to a directory, or remove, #{@stateDir}, and create it as a directory."
    puts "***** eg, rm #{@stateDir} && mkdir #{@stateDir}"
    puts '***** Or, set the State Directory explicitly by, STATE_URI=<dir://path/to/state>'
    abort();
end

Instance Method Details

#Begin ⇒ Object

Start



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# File 'lib/rservicebus/StateStorage/Dir.rb', line 30

def Begin
    @list = Array.new
end

#Commit ⇒ Object

Finish



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# File 'lib/rservicebus/StateStorage/Dir.rb', line 44

def Commit
    @list.each do |e|
        File.open( e['path'], 'w') { |f| f.write( YAML::dump( e['hash'] ) ) }
    end
end

#Get(handler) ⇒ Object

Get



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# File 'lib/rservicebus/StateStorage/Dir.rb', line 35

def Get( handler )
    path = self.getPath( handler )
    hash = self.load( path )
    @list << Hash['path', path, 'hash', hash]
    
    return hash
end

#getPath(handler) ⇒ Object

Detail Functions



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# File 'lib/rservicebus/StateStorage/Dir.rb', line 51

def getPath( handler )
    path = "#{@stateDir}/#{handler.class.name}"
    
    return path
end

#load(path) ⇒ Object 



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# File 'lib/rservicebus/StateStorage/Dir.rb', line 57

def load( path )
    return Hash.new unless File.exists?(path)
    
    content = IO.read( path )
    
    return Hash.new if content == ''
    
    return YAML::load( content )
end