Class: Ocelot::Dsl

Inherits:
Object
  • Object
show all
Defined in:
lib/ocelot/dsl.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Dsl

Returns a new instance of Dsl.



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# File 'lib/ocelot/dsl.rb', line 13

def initialize
  @rules = {}
  @filters = {}
  @seeds = lambda { [] }
  @logger = Logger.new(STDERR)
end

Instance Attribute Details

#filters ⇒ Object

Returns the value of attribute filters.



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# File 'lib/ocelot/dsl.rb', line 7

def filters
  @filters
end

#rules ⇒ Object

Returns the value of attribute rules.



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# File 'lib/ocelot/dsl.rb', line 6

def rules
  @rules
end

Instance Method Details

#classes(classes = nil) ⇒ Object 



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# File 'lib/ocelot/dsl.rb', line 35

def classes(classes=nil)
  @classes = classes.split(/\s+/) unless classes.nil?
  @classes
end

#filter(clazz, &p) ⇒ Object 



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# File 'lib/ocelot/dsl.rb', line 58

def filter(clazz, &p)
  @filters[clazz] = ScriptFilter.new(p)
end

#go ⇒ Object 



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# File 'lib/ocelot/dsl.rb', line 65

def go
  Ocelot::logger            = logger
  Ocelot::connection        = Ocelot::Connection.new(source, target)

  unless init.nil?
    Ocelot.connection.use_source = false
    init.call
    Ocelot.connection.use_source = true
  end

  copier = Ocelot::Processor.new
  copier.classes       = classes.collect { |c| eval c }
  copier.seeds         = seeds.call.flatten
  copier.extra_rules   = rules
  copier.extra_filters = filters

  if !@watch
    copier.go
  else
    copier_thread = Thread.new(copier) do
      copier.go
    end
    copier_thread.run
    copier_thread.set_trace_func proc { |*args| copier.watcher.trace(*args) }
    last_warning = nil

    # pole status
    while !copier_thread.status.nil? and copier_thread.status != false
      copier_thread.join(30)
      warning = copier.watcher.ping
      unless warning.nil? or last_warning == warning
        logger.warn warning 
        last_warning = warning
      end
    end
  end
end

#init(&p) ⇒ Object 



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# File 'lib/ocelot/dsl.rb', line 49

def init(&p)
  @init = p unless p.nil?
  @init
end

#log_level(level = nil) ⇒ Object 



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# File 'lib/ocelot/dsl.rb', line 44

def log_level(level=nil)
  @logger.level = eval "Logger::#{level}" unless level.nil?
  level
end

#logger ⇒ Object 



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# File 'lib/ocelot/dsl.rb', line 40

def logger
  @logger
end

#rule(clazz, &p) ⇒ Object 



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# File 'lib/ocelot/dsl.rb', line 54

def rule(clazz, &p) 
  @rules[clazz] = ScriptRule.new(p)
end

#seeds(&seeds) ⇒ Object 



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# File 'lib/ocelot/dsl.rb', line 25

def seeds(&seeds)
  @seeds = seeds unless seeds.nil?
  @seeds
end

#source(source = nil) ⇒ Object Also known as: source= 



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# File 'lib/ocelot/dsl.rb', line 20

def source(source=nil)
  @source = source unless source.nil?
  @source
end

#target(target = nil) ⇒ Object Also known as: target= 



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# File 'lib/ocelot/dsl.rb', line 30

def target(target=nil)
  @target = target unless target.nil?
  @target
end

#watch(val) ⇒ Object 



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# File 'lib/ocelot/dsl.rb', line 9

def watch(val)
  @watch = val
end