Add the first version of whoisactive project (#943)

* add the first version of whoisactive

* address comments

* address comments

* fix the issues from the last commit

* clean up package.json

samples/sp_whoIsActive/src/controllers/mainController.ts

@@ -0,0 +1,63 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+'use strict';
+
+import * as sqlops from 'sqlops';
+import * as Utils from '../utils';
+import ControllerBase from './controllerBase';
+import * as fs from 'fs';
+import * as path from 'path';
+import * as vscode from 'vscode';
+import * as openurl from 'openurl';
+
+
+/**
+ * The main controller class that initializes the extension
+ */
+export default class MainController extends ControllerBase {
+
+    public apiWrapper;
+    // PUBLIC METHODS //////////////////////////////////////////////////////
+    /**
+     * Deactivates the extension
+     */
+    public deactivate(): void {
+        Utils.logDebug('Main controller deactivated');
+    }
+
+    public activate(): Promise<boolean> {
+        sqlops.dashboard.registerWebviewProvider('sp_whoisactive_documentation', webview => {
+            let templateValues = {url: 'http://whoisactive.com/docs/'};
+            Utils.renderTemplateHtml(path.join(__dirname, '..'), 'templateTab.html', templateValues)
+            .then(html => {
+                webview.html = html;
+            });
+        });
+
+        sqlops.tasks.registerTask('sp_whoisactive.install', e => this.onInstall(e));
+        sqlops.tasks.registerTask('sp_whoisactive.findBlockLeaders', e => this.onExecute(e, 'findBlockLeaders.sql'));
+        sqlops.tasks.registerTask('sp_whoisactive.getPlans', e => this.onExecute(e, 'getPlans.sql'));
+
+        return Promise.resolve(true);
+    }
+
+    private onInstall(connection: sqlops.IConnectionProfile): void {
+        openurl.open('http://whoisactive.com/downloads/');
+    }
+
+    private onExecute(connection: sqlops.IConnectionProfile, fileName: string): void {
+        let sqlFile = fs.readFileSync(path.join(__dirname, '..', 'sql', fileName)).toString();
+        this.openSQLFileWithContent(sqlFile);
+    }
+
+    private openSQLFileWithContent(content: string): void {
+        vscode.workspace.openTextDocument({language: 'sql', content: content}).then(doc => {
+            vscode.window.showTextDocument(doc, vscode.ViewColumn.Active, false);
+        });
+    }
+
+}
+