Added Flickr endpoint (not yet tested)

src/main/java/org/scribe/builder/api/FlickrApi.java

@@ -0,0 +1,59 @@
+package org.scribe.builder.api;
+
+import org.scribe.builder.api.DefaultApi10a;
+import org.scribe.model.Token;
+import org.scribe.utils.OAuthEncoder;
+
+/**
+ * OAuth API for Flickr.
+ * @author Darren Greaves
+ * @see <a href="http://www.flickr.com/services/api/">Flickr API</a>
+ */
+public class FlickrApi extends DefaultApi10a
+{
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public String getAccessTokenEndpoint()
+    {
+
+        return "http://www.flickr.com/services/oauth/access_token";
+    }
+
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public String getAuthorizationUrl(Token requestToken)
+    {
+
+        return "http://www.flickr.com/services/oauth/authorize?oauth_token=" + requestToken.getToken();
+    }
+
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public String getRequestTokenEndpoint()
+    {
+
+        return "http://www.flickr.com/services/oauth/request_token";
+    }
+
+
+    /**
+     * Get request token endpoint with a callback URL.
+     * 
+     * @param callbackUrl
+     * @return
+     */
+    public String getRequestTokenEndpoint(String callbackUrl)
+    {
+
+        return String.format("%s?oauth_callback=%s", getRequestTokenEndpoint(), OAuthEncoder.encode(callbackUrl));
+    }
+}