Initial commit

src/eventData.js

@@ -0,0 +1,36 @@
+var uuid = require('uuid');
+
+function isValidId(id) {
+  if (typeof id !== 'string') return false;
+  var buf = uuid.parse(id);
+  var valid = false;
+  for(var i=0;i<buf.length;i++)
+    if (buf[i] !== 0)
+      valid = true;
+  return valid;
+}
+
+/**
+ * Create an EventData
+ * @param {string} eventId
+ * @param {string} type
+ * @param {boolean} [isJson]
+ * @param {Buffer} [data]
+ * @param {Buffer} [metadata]
+ * @constructor
+ */
+function EventData(eventId, type, isJson, data, metadata) {
+  if (!isValidId(eventId)) throw new TypeError("eventId must be a string containing a UUID.");
+  if (typeof type !== 'string' || type === '') throw new  TypeError("type must be a non-empty string.");
+  if (isJson && typeof isJson !== 'boolean') throw new TypeError("isJson must be a boolean.");
+  if (data && !Buffer.isBuffer(data)) throw new TypeError("data must be a Buffer.");
+  if (metadata && !Buffer.isBuffer(metadata)) throw new TypeError("metadata must be a Buffer.");
+
+  this.eventId = eventId;
+  this.type = type;
+  this.isJson = isJson || false;
+  this.data = data || new Buffer(0);
+  this.metadata = metadata || new Buffer(0);
+}
+
+module.exports = EventData;