public String getAccessToken() {
if (accessToken == null) {
String token = "";
try {
token =
TokenGenerator.GetTokenFromUrl(
SdkConfig.acsUrl,
this.getTenantContextId(),
this.getAppPrincipalId(),
SdkConfig.PROTOCOL_NAME + "://" + SdkConfig.protectedResourceHostName,
this.getPassword());
} catch (SdkException e) {
e.getCause().printStackTrace();
System.exit(1);
}
this.setAccessToken(token);
}
return accessToken;
}