Added convenience method to create challenge for Google Authenticator.

Author: dogeared

api/src/main/java/com/stormpath/sdk/factor/google/GoogleAuthenticatorFactor.java

@@ -28,14 +28,9 @@
  * <p/>
  * As such, the challenge can be created with the code at the same time:
  * <p/>
+ *
  * <pre>
- * GoogleAuthenticatorChallenge challenge = client.instantiate(GoogleAuthenticatorChallenge.class);
- * challenge = (GoogleAuthenticatorChallenge) googleAuthenticatorFactor.createChallenge(
- *     Challenges.GOOGLE_AUTHENTICATOR
- *         .newCreateRequestFor(challenge)
- *         <b>.withCode(code)</b>
- *         .build()
- *     );
+ * GoogleAuthenticatorChallenge challenge = googleAuthenticatorFactor.createChallenge(code);
  * </pre>
  *
  * @since 1.1.0
@@ -93,4 +88,12 @@ public interface GoogleAuthenticatorFactor<T extends GoogleAuthenticatorChalleng
      * @return the base64QRImage.
      */
     String getBase64QrImage();
+
+    /**
+     *
+     * @param code The code to validate the challenge that is created. With Google Authenticator, you can create a
+     *             challenge and validate it all in one call.
+     * @return the {@link GoogleAuthenticatorChallenge}
+     */
+    GoogleAuthenticatorChallenge createChallenge(String code);
 }

impl/src/main/java/com/stormpath/sdk/impl/factor/google/DefaultGoogleAuthenticatorFactor.java

@@ -18,6 +18,7 @@
 import com.stormpath.sdk.challenge.google.GoogleAuthenticatorChallenge;
 import com.stormpath.sdk.factor.FactorType;
 import com.stormpath.sdk.factor.google.GoogleAuthenticatorFactor;
+import com.stormpath.sdk.impl.challenge.google.DefaultGoogleAuthenticatorChallenge;
 import com.stormpath.sdk.impl.ds.InternalDataStore;
 import com.stormpath.sdk.impl.factor.AbstractFactor;
 import com.stormpath.sdk.impl.resource.Property;
@@ -89,6 +90,13 @@ public String getBase64QrImage() {
         return getString(BASE64_QR_IMAGE);
     }
 
+    @Override
+    public GoogleAuthenticatorChallenge createChallenge(String code) {
+        GoogleAuthenticatorChallenge challenge = new DefaultGoogleAuthenticatorChallenge(getDataStore());
+        challenge.setCode(code);
+        return createChallenge(challenge);
+    }
+
     protected FactorType getConcreteFactorType() {
         return FactorType.GOOGLE_AUTHENTICATOR;
     }