java to apache code for graphs with trillion edges,vertices

See more:

Java

Apache

Java code:
----------

public static void main(String[] args) {
	
   if(args.length != 12){
      System.out.println("Usage: ParamFile1 ParamFile2 ParamFile3 ParamFile4 ofset num");
      System.exit(1);
   }
		
   int numDeactivation = Integer.parseInt(args[4]);
   double offset_factor = Double.parseDouble(args[5]);
   .
   .
   .

Converting to running with Apache Giraph abstractions:
--------------------------------

public int run(String[] argArray) throws Exception {
   if (argArray.length != 12) {
      throw new IllegalArgumentException(
         "run: Usage: ParamFile1 ParamFile2 ParamFile3 ParamFile4 ofset num");
      }

      GiraphJob job = new GiraphJob(getConf(), getClass().getName());
      job.setVertexClass(getClass());
    
      job.setVertexInputFormatClass(SRankVertexInputFormat.class);
   
      job.setVertexOutputFormatClass(SRankVertexOutputFormat.class);

      int numDeactivation = Integer.parseInt(args[4]);
      double offset_factor = Double.parseDouble(args[5]);
    
      if (job.run(true) == true) {
         return 0;
      } 
      else {
         return -1;
      }
   }
}

public static void main(String[] args) throws Exception {
    System.exit(ToolRunner.run(new SRank(), args));
}

I have no experience with Apache Giraph but I want to make Java code (that processing a graph with an algorithm like ShortestPath) to run in Apache Giraph an iterative graph processing system using it's abstractions.
Is this correct conversion from clearly Java code to Apache Giraph??