Record 'java.clean.workspace' invocations in telemetry

USAGE_DATA.md

@@ -17,6 +17,7 @@ vscode-java has opt-in telemetry collection, provided by [vscode-redhat-telemetr
  * Information about the following settings. In the case of settings that store a well defined value (eg. path/url/string), we simply collect whether the setting has been set.
    * `java.settings.url`, `java.format.settings.url`, `java.quickfix.showAt`, `java.symbols.includeSourceMethodDeclarations`, `java.completion.guessMethodArguments`, `java.completion.postfix.enabled`, `java.cleanup.actionsOnSave`, `java.sharedIndexes.enabled`, `java.inlayHints.parameterNames.enabled`, `java.server.launchMode`, `java.autobuild.enabled`
  * The extension name and the choice made when a recommendation to install a 3rd party extension is proposed
+ * The name of Java commands being manually executed, and any resulting errors
 
 ## What's included in the general telemetry data
 

src/errorUtils.ts

@@ -0,0 +1,24 @@
+// copied from https://github.com/redhat-developer/openshift-dd-ext/blob/f8c053bded9bc6c1bfac682cf4867b187e87ee76/client/src/utils/ErrorUtils.ts#L12
+export function getMessage(error: any): string {
+	return getRawMessage(error).trim();
+}
+
+export function getRawMessage(error: any): string {
+	if (typeof error === 'string') {
+		return error;
+	}
+	if (error.stderr) {
+		return error.stderr;
+	}
+	if (error.message) {
+		return error.message;
+	}
+	if (error.error) {
+		return error.error;
+	}
+
+	// Unlikely to happen, as we're either getting an Error object with a message
+	// or we're dealing with a failed promise with a stderr message
+	// in any other case, we'll need to figure out what to return on a case by case basis
+	return JSON.stringify(error);
+}

src/extension.ts

@@ -32,6 +32,7 @@ import { SyntaxLanguageClient } from './syntaxLanguageClient';
 import { convertToGlob, deleteDirectory, ensureExists, getBuildFilePatterns, getExclusionBlob, getInclusionPatternsFromNegatedExclusion, getJavaConfig, getJavaConfiguration, hasBuildToolConflicts } from './utils';
 import glob = require('glob');
 import { Telemetry } from './telemetry';
+import { getMessage } from './errorUtils';
 
 const syntaxClient: SyntaxLanguageClient = new SyntaxLanguageClient();
 const standardClient: StandardLanguageClient = new StandardLanguageClient();
@@ -291,13 +292,16 @@ export function activate(context: ExtensionContext): Promise<ExtensionAPI> {
 
 			const cleanWorkspaceExists = fs.existsSync(path.join(workspacePath, cleanWorkspaceFileName));
 			if (cleanWorkspaceExists) {
+				const data = {};
 				try {
 					cleanupLombokCache(context);
 					deleteDirectory(workspacePath);
 					deleteDirectory(syntaxServerWorkspacePath);
 				} catch (error) {
+					data['error'] = getMessage(error);
 					window.showErrorMessage(`Failed to delete ${workspacePath}: ${error}`);
 				}
+				await Telemetry.sendTelemetry(Commands.CLEAN_WORKSPACE, data);
 			}
 
 			// Register commands here to make it available even when the language client fails