Class: SpsFileSync

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

Instance Method Summary collapse

Constructor Details

#initialize(nodes = [], port: '59000', host: nil, log: nil, debug: false) ⇒ SpsFileSync

Returns a new instance of SpsFileSync.



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# File 'lib/sps_filesync.rb', line 12

def initialize(nodes=[], port: '59000', host: nil, log: nil, debug: false)
  
  raise 'SpsFileSync::initialize nodes.empty' if nodes.empty?
  
  @nodes, @debug = nodes, debug
  super(port: port, host: host, log: log)
  
end

Instance Method Details

#subscribe(topic: 'file/*') ⇒ Object 



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# File 'lib/sps_filesync.rb', line 21

def subscribe(topic: 'file/*')
  
  super(topic: topic) do |msg, topic|
    
    
    if @debug then
      puts 'topic: ' + topic.inspect
      puts 'msg: ' + msg.inspect
    end
    
    action = topic.split('/').last.to_sym

    @master_address , path = msg.match(/^dfs:\/\/([^\/]+)(.*)/).captures

    case action
    when :cp

      src, dest = msg.split(/ +/,2)

      file_op do |f, node|
        src_path = "dfs://%s%s" % [node, src[/^dfs:\/\/[^\/]+(.*)/]]
        target_path = "dfs://%s%s" % [node, dest[/^dfs:\/\/[^\/]+(.*)/]]
        f.cp src_path, target_path
      end
      
    when :mkdir
      
      file_op {|f, node| f.mkdir "dfs://%s%s" % [node, path] }

    when :mkdir_p
      
      file_op {|f, node| f.mkdir_p "dfs://%s%s" % [node, path] }            
      
    when :mv

      src, dest = msg.split(/ +/,2)

      file_op do |f, node|
        src_path = "dfs://%s/%s" % [node, src[/^dfs:\/\/[^\/]+(.*)/]]
        target_path = "dfs://%s/%s" % [node, dest[/^dfs:\/\/[^\/]+(.*)/]]
        f.mv src_path, target_path
      end                  
            
    when :write

      master_path = msg

      file_op do |f, node|
        target_path = "dfs://%s%s" % [node, path]
        
        if @debug then
          puts 'master_path: ' + master_path.inspect
          puts 'target_path: ' + target_path.inspect
        end
                  
        DfsFile.cp master_path, target_path

      end
      
    when :rm
      
      file_op {|f, node| f.rm "dfs://%s%s" % [node, path] }      
    
    when :zip

      master_path = msg

      file_op do |f, node|
        target_path = "dfs://%s%s" % [node, path]
        f.cp master_path, target_path
      end 
      
    end
  end
end