private void readConsumerToken() throws OAuthException {
if (!storeRead) {
try {
CredentialStore factory = CredentialStoreFactory.getCredentialStore(getCredentialStore());
if (factory != null) {
ConsumerToken consumerToken = (ConsumerToken) factory.load(getServiceName(), CONSUMER_TOKEN_STORE_TYPE, null);
if (consumerToken != null) {
storeRead = true;
if (StringUtil.isNotEmpty(consumerToken.getConsumerKey())) {
setConsumerKey(consumerToken.getConsumerKey());
}