* @return the authorization header to be used for the request
*/
public String getAuthorizationHeader(URL requestUrl, String requestMethod) {
try {
if (parameters.getOAuthType() == OAuthType.TWO_LEGGED_OAUTH) {
TwoLeggedOAuthHelper twoLeggedOAuthHelper
= new TwoLeggedOAuthHelper(signer, parameters);
return twoLeggedOAuthHelper.getAuthorizationHeader(requestUrl.toString(),
requestMethod);
} else {
GoogleOAuthHelper oauthHelper = new GoogleOAuthHelper(signer);
return oauthHelper.getAuthorizationHeader(requestUrl.toString(),
requestMethod, parameters);