Add Welcome content for Application Explorer View

package.json

@@ -780,6 +780,12 @@
         }
       ]
     },
+    "viewsWelcome": [
+      {
+        "view": "openshiftProjectExplorer",
+        "contents": "Cluster is not accessible or you are not logged in\n[Login](command:openshift.explorer.login)\n[Change Kubernetes context](command:openshift.explorer.switchContext)\n[Provision OpenShift Cluster](command:openshift.explorer.addCluster)"
+      }
+    ],
     "menus": {
       "explorer/context": [
         {

src/odo.ts

@@ -490,12 +490,12 @@ export class OdoImpl implements Odo {
         '"system:anonymous"',
     ];
 
-    private readonly serverDownMessages = [
-        'Unable to connect to OpenShift cluster, is it down?',
-        'no such host',
-        'no route to host',
-        'connection refused',
-    ];
+    // private readonly serverDownMessages = [
+    //     'Unable to connect to OpenShift cluster, is it down?',
+    //     'no such host',
+    //     'no route to host',
+    //     'connection refused',
+    // ];
 
     public readonly subject: Subject<OdoEvent> = new Subject<OdoEvent>();
 
@@ -539,12 +539,12 @@ export class OdoImpl implements Odo {
         const result: cliInstance.CliExitData = await this.execute(
             Command.printOdoVersionAndProjects(), process.cwd(), false
         );
-        if (this.odoLoginMessages.some((element) => result.stderr ? result.stderr.includes(element) : false)) {
-            return[new OpenShiftLoginRequired()];
-        }
-        if (this.serverDownMessages.some((element) => result.stderr ? result.stderr.includes(element) : false)) {
-            return [new OpenShiftClusterDown()];
-        }
+        // if (this.odoLoginMessages.some((element) => result.stderr ? result.stderr.includes(element) : false)) {
+        //     return[new OpenShiftLoginRequired()];
+        // }
+        // if (this.serverDownMessages.some((element) => result.stderr ? result.stderr.includes(element) : false)) {
+        //     return [new OpenShiftClusterDown()];
+        // }
         commands.executeCommand('setContext', 'isLoggedIn', true);
         clusters = result.stdout.trim().split('\n').filter((value) => {
             return value.includes('Server:');

test/unit/odo.test.ts

@@ -614,26 +614,6 @@ suite('odo', () => {
             assert.equal(cluster[0].getName(), clusterUrl);
         });
 
-        test('show error message if cluster is not login', async () => {
-            sandbox.stub(odo.OdoImpl.prototype, 'execute').onFirstCall().resolves({
-                error: undefined,
-                stdout: '',
-                stderr: 'Please log in to the cluster'
-            });
-            const cluster: odo.OpenShiftObject[] = await odo.getInstance().getClusters();
-            assert.equal(cluster[0].getName(), 'Please log in to the cluster');
-        });
-
-        test('show message if cluster is down', async () => {
-            sandbox.stub(odo.OdoImpl.prototype, 'execute').onFirstCall().resolves({
-                error: undefined,
-                stdout: '',
-                stderr: 'Unable to connect to OpenShift cluster, is it down?'
-            });
-            const cluster: odo.OpenShiftObject[] = await odo.getInstance().getClusters();
-            assert.equal(cluster[0].getName(), 'Cannot connect to the OpenShift cluster');
-        });
-
         test('extension uses oc version to get cluster url as a backup plan', async () => {
             sandbox.stub(odo.OdoImpl.prototype, 'execute').onFirstCall().resolves({
                 error: undefined,