1 files changed, 58 insertions, 0 deletions
diff --git a/catalog-ui/src/app/ng2/utils/queue-service-utils.ts b/catalog-ui/src/app/ng2/utils/queue-service-utils.ts
new file mode 100644
index 0000000000..8cf7f98383
--- /dev/null
+++ b/catalog-ui/src/app/ng2/utils/queue-service-utils.ts
@@ -0,0 +1,58 @@
+/**
+ * Created by ob0695 on 6/3/2018.
+ */
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+import {Injectable} from "@angular/core";
+
+@Injectable()
+export class QueueServiceUtils {
+
+    private executionQueue:any;
+
+    constructor() {
+        if(!this.executionQueue) {
+            this.executionQueue = this.getQueue();
+        }
+    }
+
+    private getQueue = () => new Promise((resolve, reject) => {
+       resolve(true);
+    });
+
+    private addMethodToQueue = (runMe:Function):void => {
+        this.executionQueue = this.executionQueue.then(runMe, runMe);
+    };
+
+    addNonBlockingUIAction = (update:Function, releaseUIcallBack?:Function):void => {
+        // releaseUIcallBack();
+        this.addMethodToQueue(update);
+    };
+
+    // The Method call is responsible for releasing the UI
+    addBlockingUIAction = (blockingServerRequest:Function):void => {
+        this.addMethodToQueue(blockingServerRequest);
+    };
+
+    addBlockingUIActionWithReleaseCallback = (blockingServerRequest:Function, releaseUIcallBack:Function):void=> {
+        this.addMethodToQueue(blockingServerRequest);
+        // this.addMethodToQueue(releaseUIcallBack);
+    };
+}