added batching, generically

1 files changed, 27 insertions, 0 deletions

diff --git a/src/client/northstar/utils/Extensions.ts b/src/client/northstar/utils/Extensions.ts
index ab9384f1f..720f4a062 100644
--- a/src/client/northstar/utils/Extensions.ts
+++ b/src/client/northstar/utils/Extensions.ts
@@ -5,6 +5,8 @@ interface String {
     hasNewline(): boolean;
 }
 
+const extensions = require(".././/.//../util/UtilExtensions");
+
 String.prototype.ReplaceAll = function (toReplace: string, replacement: string): string {
     var target = this;
     return target.split(toReplace).join(replacement);
@@ -18,6 +20,31 @@ String.prototype.Truncate = function (length: number, replacement: string): Stri
     return target;
 };
 
+interface Action<T> {
+    handler: (batch: T[]) => any;
+    interval?: number;
+}
+
+interface BatchParameters<T> {
+    size: number;
+    action?: Action<T>;
+}
+
+interface Array<T> {
+    batch(parameters: BatchParameters<T>): Promise<T[][]>;
+    lastElement(): T;
+}
+
+Array.prototype.batch = extensions.Batch;
+
+Array.prototype.lastElement = function <T>() {
+    if (!this.length) {
+        return undefined;
+    }
+    const last: T = this[this.length - 1];
+    return last;
+};
+
 interface Math {
     log10(val: number): number;
 }