Latest Code

node_modules/strong-store-cluster/lib/worker/Collection.js

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+
+module.exports = Collection;
+
+
+var inherits = require('util').inherits,
+    EventEmitter = require('events').EventEmitter,
+    KeyLock = require('./KeyLock.js'),
+    request = require('./request.js');
+
+
+function Collection(name) {
+  this._name = name;
+}
+
+inherits(Collection, EventEmitter);
+
+Collection.prototype.get = function(key, cb) {
+  this._request('get', key, null, function(err, msg) {
+    if (err)
+      return cb(err);
+    else if (!msg.json)
+      return cb(null, undefined);
+    else
+      return cb(null, JSON.parse(msg.json));
+  });
+};
+
+Collection.prototype.set = function(key, value, cb) {
+  var data = { json: JSON.stringify(value) };
+  this._request('set', key, data, cb && function(err, msg) {
+    return cb(err);
+  });
+};
+
+Collection.prototype.del = function(key, cb) {
+  return this._request('set', key, null, cb && function(err, msg) {
+    return cb(err);
+  });
+};
+
+Collection.prototype.acquire = function(key, cb) {
+  var self = this;
+
+  this._request('acquire', key, null, function(err, msg) {
+    if (err)
+      return cb(err);
+
+    var json = msg.json;
+    var lock = new KeyLock(self, key, json);
+    cb(null, lock, lock.get());
+  });
+};
+
+Collection.prototype.configure = function(config) {
+  var self = this;
+
+  this._request('configure', null, { config: config }, function(err, msg) {
+    if (err)
+      self.emit('error', err);
+  });
+
+  return this;
+};
+
+// This function clobbers `data` if specified
+Collection.prototype._request = function(method, key, data, cb) {
+  request(method, this._name, key, data, cb);
+};