Cleaned up git

[iotcloud.git] / version1 / src / js / iotjs / src / slotindexer.js

diff --git a/version1/src/js/iotjs/src/slotindexer.js b/version1/src/js/iotjs/src/slotindexer.js
new file mode 100644 (file)
index 0000000..66f4b4d
--- /dev/null
+++ b/version1/src/js/iotjs/src/slotindexer.js
@@ -0,0 +1,39 @@
+"use strict";
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var SlotIndexer = function () {
+       function SlotIndexer(_updates, _buffer) {
+               _classCallCheck(this, SlotIndexer);
+
+               // updates is an array of slot objects
+               // buffer is an instanceof slotbuffer constructor object in slotbuffer.js
+               this.updates = _updates;
+               if (_buffer && _buffer instanceof SlotBuffer) {
+                       this.buffer = _buffer;
+               } else {
+                       throw new Error("Argument error Buffer should be an instance of SlotBuffer");
+               }
+               this.firstslotseqnum = this.updates[0].getSequenceNumber();
+       }
+
+       _createClass(SlotIndexer, [{
+               key: "getSlot",
+               value: function getSlot(seqnum) {
+                       if (seqnum >= this.firstslotseqnum) {
+                               var offset = seqnum - this.firstslotseqnum;
+                               if (offset >= this.updates.length) {
+                                       throw new Error('Invalid Slot Sequence Number Reference');
+                               } else {
+                                       return this.updates[offset];
+                               }
+                       } else {
+                               return this.buffer.getSlot(seqnum);
+                       }
+               }
+       }]);
+
+       return SlotIndexer;
+}();
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