rserving

enhance and simplify interacing with rserve

rserving

enhance and simplify interacing with rserve

Install the module with: npm install rserving

var rserving = require('rserving').load(r_dir); // r_dir: directory for *.R files 
 
  • rserving.maxConnection
  rserving.maxConnection() // get current maxConnection, default is 15 
 
  rserving.maxConnection(16) // set maxConnection, you need to test the max connection first 
 
  • rserving.testMaxConnection(callback, num)
  rserving.testMaxConnection(function (result) {
    console.log('Rserve maxConnection is ' + result);
  }, 30)
 
  • rserving.express
  var express = require('express');
  
  var three = rserving.express
  
  var four = function(reqresnext) {
    var args = {};
  
    args.prods = ["IBM", "YHOO", "MSFT"];
  
    req.rserving_options = {
      name: 'ex2',
      entryPoint: 'getOptimalPortfolio',
      data: args
    };
    next()
  };
  
  var five = function(reqresnext) {
    res.json(req.rserving_data);
  };  
  
  var app = express();
  app.use(four, three, five);
 
 
var task = {
    name: 'ex2',
    options: {
      entryPoint: "getOptimalPortfolio",
      data: args,      
      callback: show(i, Date.now())
    }
  };
  
rserving.maxConnection(16); // set/get maxConnection to Rserve 
 
rserving.setOption({
  host: 'x.x.x.x', // default: 'localhost' 
  port: 6311, //default: 6311 
});
 
rserving.on('in', function(count) {
  console.log('..........in now ' + count)
})
rserving.on('out', function(count) {
  console.log('..........out now ' + count)
})  
 
rserving.queue.push(task);

In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.

Copyright (c) 2013 fanlia
Licensed under the MIT license.