SDK-368: SDK should prompt for the database logins again if invalid logins were entered (#324)

Author: mherman22

maven-plugin/src/main/java/org/openmrs/maven/plugins/Setup.java

@@ -429,12 +429,37 @@ private void setupDatabaseForServer(Server server) throws MojoExecutionException
 
 		if (server.isMySqlDb() || server.isPostgreSqlDb()) {
 			String uri = getUriWithoutDb(server);
-			try (DBConnector connector = new DBConnector(uri, server.getDbUser(), server.getDbPassword(), server.getDbName())) {
-				connector.checkAndCreate(server);
-				wizard.showMessage("Connected to the database.");
-			}
-			catch (SQLException e) {
-				throw new MojoExecutionException("Failed to connect to the specified database " + server.getDbUri(), e);
+			boolean connectionEstablished = false;
+			int maxAttempts = 3;
+			int attempts = 0;
+
+			while (!connectionEstablished && attempts < maxAttempts) {
+				attempts++;
+				try (DBConnector connector = new DBConnector(uri, server.getDbUser(), server.getDbPassword(), server.getDbName())) {
+					connector.checkAndCreate(server);
+					wizard.showMessage("Connected to the database.");
+					connectionEstablished = true;
+				}
+				catch (SQLException e) {
+					if (e.getMessage().contains("Invalid database credentials")) {
+						if (attempts == maxAttempts) {
+							throw new MojoExecutionException(
+									String.format("Failed to connect to database after %d attempts. Please verify your credentials and try again.", maxAttempts),
+									e
+							);
+						}
+
+						wizard.showMessage(String.format("Database connection failed (attempt %d of %d): %s", attempts, maxAttempts, e.getMessage()));
+						String newUser = wizard.promptForValueIfMissingWithDefault("Please specify correct database username (-D%s)", dbUser, "dbUser", "root");
+						String newPassword = wizard.promptForPasswordIfMissingWithDefault("Please specify correct database password (-D%s)", dbPassword, "dbPassword", "");
+
+						server.setDbUser(newUser);
+						server.setDbPassword(newPassword);
+
+						continue;
+					}
+					throw new MojoExecutionException("Failed to connect to the specified database " + server.getDbUri(), e);
+				}
 			}
 
 			if (hasDbTables(server)) {

maven-plugin/src/main/java/org/openmrs/maven/plugins/utility/DBConnector.java

@@ -22,7 +22,14 @@ public DBConnector(String url, String user, String pass, String dbName) throws S
 		try {
 			this.connection = DriverManager.getConnection(url, user, pass);
 		} catch (SQLException e) {
-			this.connection = DriverManager.getConnection(url, user, pass);
+			try {
+				this.connection = DriverManager.getConnection(url, user, pass);
+			} catch (SQLException e2) {
+				if (e2.getMessage().contains("Access denied")) {
+					throw new SQLException("Invalid database credentials. Please check your username and password.", e2);
+				}
+				throw e2;
+			}
 		}
 		this.dbName = dbName;
 	}

sdk-commons/src/main/java/org/openmrs/maven/plugins/utility/Wizard.java

@@ -63,4 +63,6 @@ public interface Wizard {
     boolean promptForConfirmDistroUpgrade(UpgradeDifferential upgradeDifferential) throws MojoExecutionException;
 
     void setAnswers(ArrayDeque<String> batchAnswers);
+
+    String promptForPasswordIfMissingWithDefault(String s, String dbPassword, String dbPassword1, String s1) throws MojoExecutionException;
 }