Class: DRbFileClient

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

Instance Method Summary collapse

Constructor Details

#initialize(location = nil, host: nil, port: '61010', debug: false) ⇒ DRbFileClient

Returns a new instance of DRbFileClient.



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# File 'lib/drb_fileclient.rb', line 13

def initialize(location=nil, host: nil, port: '61010', debug: false)
  
  @debug = debug
  
  if location then
    
    host = location[/(?<=^dfs:\/\/)[^\/:]+/]
    port = location[/(?<=^dfs:\/\/)[^:]+:(\d+)/,1]  || '61010'
    @directory = location[/(?<=^dfs:\/\/)[^\/]+\/(.*)/,1]
    
  end
  
  DRb.start_service
  
end

Instance Method Details

#chdir(raw_path) ⇒ Object 



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# File 'lib/drb_fileclient.rb', line 29

def chdir(raw_path)
  
  return Dir.chdir raw_path unless @directory or raw_path =~ /^dfs:\/\//
  
  if raw_path[0] == '/'  then
    directory = raw_path[1..-1]
  elsif raw_path =~ /^dfs:\/\//
    @file, directory = parse_path(raw_path)
  else      
    directory = File.join(@directory, raw_path)
  end    
  
  if @file.exists? directory then
    @directory = directory
  else
    'No such file or directory'
  end
  
end

#cp(raw_path, raw_path2) ⇒ Object 



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# File 'lib/drb_fileclient.rb', line 49

def cp(raw_path, raw_path2)
  
  puts 'inside cp'.info if @debug
      
  if raw_path =~ /^dfs:\/\// then
    
    if @debug then
      puts ('raw_path: ' + raw_path.inspect).debug
      puts ('raw_path2: ' + raw_path2.inspect).debug
    end
    
    if raw_path[/^dfs:\/\/([^\/]+)/] == raw_path2[/^dfs:\/\/([^\/]+)/] then
      
      _, path = parse_path(raw_path)
      @file, path2 = parse_path(raw_path2)
      @file.cp path, path2
      
    else
      
      @file, path = parse_path(raw_path)
      file2, path2 = parse_path(raw_path2)
      content = @file.read path
      
      file2.write path2, content

    end
  
  elsif raw_path2 =~ /dfs:\/\// then
    
    puts 'option2'.info if @debug
    
    file2, path2 = parse_path(raw_path2)
    puts ('path2: ' + path2.inspect).debug if @debug
    file2.write path2, File.read(raw_path)
    
  else
    
    puts 'option3'.info if @debug
    @file.cp File.join(@directory, raw_path), 
        File.join(@directory, raw_path2)
    
  end 
    
end

#directory?(filename = @filename) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/drb_fileclient.rb', line 94

def directory?(filename=@filename)  
  
  return File.directory? filename unless @directory or filename =~ /^dfs:\/\//
  
  if filename =~ /^dfs:\/\// then
    @file, filename2 = parse_path(filename)
  else

    filename2 = File.join(@directory, filename)
  end

  @file.directory?(filename2)
  
end

#exists?(filename = @filename) ⇒ Boolean Also known as: exist?

Returns:

  • (Boolean) 


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# File 'lib/drb_fileclient.rb', line 109

def exists?(filename=@filename)  
  
  return File.exists? filename unless @directory or filename =~ /^dfs:\/\//
  
  if filename =~ /^dfs:\/\// then
    @file, filename2 = parse_path(filename)
  else

    filename2 = File.join(@directory, filename)
  end

  @file.exists?(filename2)
  
end

#ls(raw_path) ⇒ Object 



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# File 'lib/drb_fileclient.rb', line 126

def ls(raw_path)
  
  return Dir[raw_path] unless @directory or raw_path =~ /^dfs:\/\//
  
  if raw_path[0] == '/'  then
    path = raw_path[1..-1]
  elsif raw_path =~ /^dfs:\/\//
    @file, path = parse_path(raw_path)
  else      
    path = File.join(@directory, raw_path)
  end    
  
  @file.ls path
  
end

#mkdir(name) ⇒ Object 



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# File 'lib/drb_fileclient.rb', line 142

def mkdir(name)
  
  return FileUtils.mkdir name unless @directory or name =~ /^dfs:\/\//
  
  @file, path = parse_path(name)
  @file.mkdir path
end

#mkdir_p(raw_path) ⇒ Object 



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# File 'lib/drb_fileclient.rb', line 150

def mkdir_p(raw_path)
  
  unless @directory or raw_path =~ /^dfs:\/\// then
    return FileUtils.mkdir_p raw_path 
  end    
  
  if raw_path =~ /^dfs:\/\// then
    @file, filepath = parse_path(raw_path)
  else
    filepath = File.join(@directory, raw_path)
  end
  
  @file.mkdir_p filepath
end

#mv(raw_path, raw_path2) ⇒ Object 



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# File 'lib/drb_fileclient.rb', line 165

def mv(raw_path, raw_path2)
  
  unless @directory or raw_path =~ /^dfs:\/\// then
    return FileUtils.mv raw_path, raw_path2  
  end
  
  if raw_path =~ /^dfs:\/\// then
    _, path = parse_path(raw_path)
  else
    path = File.join(@directory, raw_path)
  end
  
  if raw_path2 =~ /^dfs:\/\// then
    _, path2 = parse_path(raw_path2)
  else
    path2 = File.join(@directory, raw_path2)
  end
    
  @file.mv path, path2
end

#pwd ⇒ Object 



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# File 'lib/drb_fileclient.rb', line 186

def pwd()
  
  return Dir.pwd unless @directory
  
  '/' + @directory if @file
  
end

#read(filename = @filename) ⇒ Object 



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# File 'lib/drb_fileclient.rb', line 194

def read(filename=@filename)
  
  return File.read filename, s unless @directory or filename =~ /^dfs:\/\//
  
  if filename =~ /^dfs:\/\// then
    @file, path = parse_path(filename)
  else
    path = File.join(@directory, filename)
  end
  
  @file.read path
end

#rm(path) ⇒ Object 



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# File 'lib/drb_fileclient.rb', line 207

def rm(path)
  
  return FileUtils.rm path unless @directory or path =~ /^dfs:\/\//
  
  if path =~ /^dfs:\/\// then
    @file, path2 = parse_path( path)
  else
    path2 = File.join(@directory, path)
  end
    
  @file.rm  path2
  
end

#write(filename = @filename, s) ⇒ Object 



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# File 'lib/drb_fileclient.rb', line 221

def write(filename=@filename, s)
      
  return File.write filename, s unless @directory or filename =~ /^dfs:\/\//
  
  if filename =~ /^dfs:\/\// then
    @file, path = parse_path(filename)
  else
    path = File.join(@directory, filename)
  end
  
  @file.write path, s     
  
end

#zip(filename_zip, a) ⇒ Object 



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# File 'lib/drb_fileclient.rb', line 235

def zip(filename_zip, a)
  
  puts '@directory: ' + @directory.inspect if @debug
  
  unless @directory or filename_zip =~ /^dfs:\/\// then
    
    Zip::File.open(zipfile_zip, Zip::File::CREATE) do |x|

      a.each do |filename, buffer| 
        x.get_output_stream(filename) {|os| os.write buffer }
      end

    end
    
  end
  
  if filename_zip =~ /^dfs:\/\// then
    @file, filepath = parse_path(filename_zip)
  else
    filepath = File.join(@directory, filename_zip)
  end

  @file.zip filepath, a
  
end