Class: RemoteRuby::StreamPrefixer

Inherits:
Object
  • Object
show all
Defined in:
lib/remote_ruby/stream_prefixer.rb

Overview

Decorates the source stream prepending a prefix to each line read from the source

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(stream, prefix) ⇒ StreamPrefixer

Returns a new instance of StreamPrefixer.



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# File 'lib/remote_ruby/stream_prefixer.rb', line 9

def initialize(stream, prefix)
  @stream = stream
  @prefix = prefix
  @prefix_needed = true
end

Instance Attribute Details

#prefix ⇒ Object (readonly)

Returns the value of attribute prefix.



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# File 'lib/remote_ruby/stream_prefixer.rb', line 7

def prefix
  @prefix
end

#stream ⇒ Object (readonly)

Returns the value of attribute stream.



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# File 'lib/remote_ruby/stream_prefixer.rb', line 7

def stream
  @stream
end

Instance Method Details

#write(data) ⇒ Object 



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# File 'lib/remote_ruby/stream_prefixer.rb', line 15

def write(data)
  res = 0
  data.each_line do |line|
    res += stream.write(prefix) if @prefix_needed
    @prefix_needed = line.end_with?("\n")
    res += stream.write(line)
  end
  res
end