guvnor/lib/daemon/domain/PersistentStore.js

A node process manager that isn't spanners all the way down

var Autowire = require('wantsit').Autowire
var async = require('async')
var util = require('util')
var Store = require('../../common/Store')

var PersistentStore = function (factoryName, fileName) {
  Store.call(this, factoryName)

  this._file = fileName

  this._fs = Autowire
  this._jsonfile = Autowire
  this._logger = Autowire
  this._config = Autowire
  this._fileSystem = Autowire
}
util.inherits(PersistentStore, Store)

PersistentStore.prototype.afterPropertiesSet = function (done) {
  this._file = this._fileSystem.getConfDir() + '/' + this._file

  this._jsonfile.readFile(this._file, function (error, array) {
    if (
      error &&
        // means someone did cat /dev/null > users.json
      error.type !== 'unexpected_eos' &&
        // the file did not exist
      error.code !== 'ENOENT'
    ) {
      return done(error)
    }

    if (!array || !Array.isArray(array)) {
      return done()
    }

    async.parallel(array.map(function (details) {
      return function (callback) {
        this.create([details], callback)
      }.bind(this)
    }.bind(this)), done)
  }.bind(this))
}

PersistentStore.prototype.save = function (callback) {
  this._jsonfile.writeFile(this._file, this._store, {
    mode: parseInt('0600', 8)
  }, callback)
}

PersistentStore.prototype.saveSync = function () {
  this._jsonfile.writeFileSync(this._file, this._store, {
    mode: parseInt('0600', 8)
  })
}

module.exports = PersistentStore