Class: Fluent::Auditify::ParsletUtil

Inherits:
Object
  • Object
show all
Defined in:
lib/fluent/auditify/parsletutil.rb

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ ParsletUtil 



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# File 'lib/fluent/auditify/parsletutil.rb', line 6

def initialize(options={})
  reset_style
end

Instance Method Details

#collect_file_handlers(object) ⇒ Object 



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# File 'lib/fluent/auditify/parsletutil.rb', line 30

def collect_file_handlers(object)
  handlers = {}
  object.each do |directive|
    if directive[:empty_line]
      key = handler_key(directive, object)
      unless key and handlers.key?(key)
        if key
          handlers[key] = File.open(key, 'w+')
        end
      end
    elsif directive[:source] or directive[:match] or
         directive[:system] or directive[:filter]
      key = handler_key(directive, object)
      unless key and handlers.key?(key)
        if key
          handlers[key] = File.open(key, 'w+')
        end
      end
      directive[:body].each do |body|
        key = handler_key(body, directive)
        unless key and handlers.key?(key)
          if key
            handlers[key] = File.open(key, 'w+')
          end
        end
      end
    end
  end
  handlers
end

#export(object, options = {}) ⇒ Object 



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# File 'lib/fluent/auditify/parsletutil.rb', line 61

def export(object, options={})
  # setup rewrite file handles
  @handlers = collect_file_handlers(object)
  @include_flushed = {}
  object.each do |directive|
    key = handler_key(directive, object)
    if directive[:system]
      export_line(key, directive[:system].to_s)
      export_body(directive)
      export_line(key, '</system>')
    elsif directive[:source]
      export_line(key, directive[:source].to_s)
      export_body(directive)
      export_line(key, '</source>')
      if directive[:__PATTERN__] and directive[:__PARENT__]
        key = File.join(directive[:__BASE__], directive[:__PARENT__])
        unless @include_flushed[key]
          export_line(key, "@include #{directive[:__PATTERN__]}")
          @include_flushed[key] = true
        end
      end
    elsif directive[:filter]
      export_line(key, directive[:filter].to_s)
      export_body(directive)
      export_line(key, '</filter>')
      if directive[:__PATTERN__] and directive[:__PARENT__]
        key = File.join(directive[:__BASE__], directive[:__PARENT__])
        unless @include_flushed[key]
          export_line(key, "@include #{directive[:__PATTERN__]}")
          @include_flushed[key] = true
        end
      end
    elsif directive[:match]
      if directive[:pattern]
        export_line(key, "#{directive[:match].to_s} #{directive[:pattern]}>")
      else
        export_line(key, "#{directive[:match].to_s}>")
      end
      export_body(directive)
      export_line(key, '</match>')
    elsif directive[:empty_line]
      export_line(key, '')
    end
  end
  @handlers.each do |path, io|
    io.flush
    io.fsync
    io.close
  end
  @handlers = []
end

#export_at_include(object, parent) ⇒ Object 



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# File 'lib/fluent/auditify/parsletutil.rb', line 130

def export_at_include(object, parent)
  pattern = object[:__PATTERN__]
  if pattern
    unless @include_flushed[pattern]
      key = handler_key(parent, parent)
      export_line(key, "@include #{pattern}")
      @include_flushed[pattern] = true
    end
  end
end

#export_body(directive) ⇒ Object 



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# File 'lib/fluent/auditify/parsletutil.rb', line 148

def export_body(directive)
  @indent_level += 1
  directive[:body].each do |child|
    if child[:section]
      export_section(child, directive)
    elsif child[:empty_line]
      key = handler_key(child, directive)
      export_line(key, "")
    elsif child[:value]
      key = handler_key(child, directive)
      export_line(key, "#{child[:name].to_s} #{child[:value].to_s}")
      export_at_include(child, directive)
    elsif child[:name]
      key = handler_key(child, directive)
      export_line(key, child[:name].to_s)
      export_at_include(child, directive)
    end
  end
  @indent_level -= 1
end

#export_line(key, message) ⇒ Object 



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# File 'lib/fluent/auditify/parsletutil.rb', line 141

def export_line(key, message)
  io = @handlers[key]
  if io
    io.puts("#{' ' * @align * @indent_level}#{message}")
  end
end

#export_section(section, directive) ⇒ Object 



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# File 'lib/fluent/auditify/parsletutil.rb', line 113

def export_section(section, directive)
  key = handler_key(section, directive)
  export_line(key, "<#{section[:section][:name].to_s}>")
  @indent_level += 1
  section[:body].each do |kv|
    key = handler_key(kv, directive)
    if kv[:value]
      export_line(key, "#{kv[:name].to_s} #{kv[:value].to_s}")
    else
      export_line(key, "#{kv[:name].to_s}")
    end
  end
  @indent_level -= 1
  export_line(key, "</#{section[:name].to_s}>")
  export_at_include(section, directive)
end

#handler_key(object, parent = nil) ⇒ Object 



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# File 'lib/fluent/auditify/parsletutil.rb', line 16

def handler_key(object, parent = nil)
  if object[:__BASE__] and object[:__PATH__]
    # directive
    File.join(object[:__BASE__], object[:__PATH__])
  elsif parent and parent[:__BASE__] and object[:__PATH__]
    # section, body
    File.join(parent[:__BASE__], object[:__PATH__])
  elsif parent and parent[:__BASE__] and parent[:__PATH__]
    File.join(parent[:__BASE__], parent[:__PATH__])
  else
    nil
  end
end

#reset_style ⇒ Object 



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# File 'lib/fluent/auditify/parsletutil.rb', line 10

def reset_style
  @indent_level = 0
  @align = 2
  @content = StringIO.new
end

#to_s(object, options = {}) ⇒ Object 



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# File 'lib/fluent/auditify/parsletutil.rb', line 169

def to_s(object, options={})
  object.each do |directive|
    if directive[:source]
      @content.puts "#{' ' * @align * @indent_level}#{directive[:source].to_s}"
      stringify_body(directive)
      @content.puts "</source>"
    elsif directive[:match]
      @content.puts "#{' ' * @align * @indent_level}#{directive[:match].to_s}>"
      stringify_body(directive)
      @content.puts "</match>"
    elsif directive[:system]
      @content.puts "#{' ' * @align * @indent_level}#{directive[:system].to_s}"
      stringify_body(directive)
      @content.puts "</system>"
    elsif directive[:empty_line]
      @content.puts
    else
    end
  rescue => e
    p e
  end
  @content.string
end