Plugin pubsub implementation

Added implementation for sdc-hub and plugin pubsub classes
Added timeout in the plugin head request health check
Passing parentUrl in query params to each plugin

Change-Id: Ie94aa4b398dd2fcfdf2d134f6c5785d3aa50d237
Issue-ID: SDC-1007
Signed-off-by: Idan Amit <ia096e@intl.att.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/catalog-ui/src/app/ng2/services/event-bus.service.ts b/catalog-ui/src/app/ng2/services/event-bus.service.ts
new file mode 100644
index 0000000000..7730a77f41
--- /dev/null
+++ b/catalog-ui/src/app/ng2/services/event-bus.service.ts
@@ -0,0 +1,39 @@
+import { Injectable } from '@angular/core';
+import {BasePubSub, IPubSubEvent} from "../../models/base-pubsub";
+
+@Injectable()
+export class EventBusService extends BasePubSub {
+
+    constructor() {
+        super("sdc-hub");
+    }
+
+    protected handlePluginRegistration(eventData: IPubSubEvent, event: any) {
+        if (eventData.type === 'PLUGIN_REGISTER') {
+            this.register(eventData.data.pluginId, event.source, event.origin);
+        } else if (eventData.type === 'PLUGIN_UNREGISTER') {
+            this.unregister(eventData.data.pluginId);
+        }
+    }
+
+    public unregister(pluginId: string) {
+        const unregisterData = {
+            pluginId: pluginId
+        };
+
+        this.notify('PLUGIN_CLOSE', unregisterData);
+        super.unregister(pluginId);
+    }
+
+    protected onMessage(event: any) {
+        if (event.data.type === 'PLUGIN_REGISTER') {
+            this.handlePluginRegistration(event.data, event);
+        }
+
+        super.onMessage(event);
+
+        if (event.data.type === 'PLUGIN_UNREGISTER') {
+            this.handlePluginRegistration(event.data, event);
+        }
+    }
+}