Add trello.com oauth adapter

changelog.txt

@@ -95,3 +95,4 @@
 
 [1.3.3]
   * FEATURE: accessToken and requestToken timeouts default to 2 seconds and can be specified.
+  * FEATURE: Trello.com Api

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

@@ -0,0 +1,35 @@
+package org.scribe.builder.api;
+
+import org.scribe.model.Token;
+
+/**
+ * OAuth access to the trello.com api.
+ * <p/>
+ * For more information visit http://trello.com/api
+ *
+ * @author Harald Wartig <hwartig@googlemail.com>
+ */
+public class TrelloApi extends DefaultApi10a
+{
+
+  private static final String AUTHORIZE_URL = "https://trello.com/1/OAuthAuthorizeToken?oauth_token=%s";
+
+  @Override
+  public String getRequestTokenEndpoint()
+  {
+    return "https://trello.com/1/OAuthGetRequestToken";
+  }
+
+  @Override
+  public String getAccessTokenEndpoint()
+  {
+    return "https://trello.com/1/OAuthGetAccessToken";
+  }
+
+  @Override
+  public String getAuthorizationUrl(Token requestToken)
+  {
+    return String.format(AUTHORIZE_URL, requestToken.getToken());
+  }
+}
+

src/test/java/org/scribe/examples/TrelloExample.java

@@ -0,0 +1,81 @@
+package org.scribe.examples;
+
+import org.scribe.builder.ServiceBuilder;
+import org.scribe.builder.api.TrelloApi;
+import org.scribe.model.*;
+import org.scribe.oauth.OAuthService;
+
+import java.util.Scanner;
+
+/**
+ * Shows you how to use scribe with trello.com .
+ *
+ * @author Harald Wartig <hwartig@googlemail.com>
+ */
+public class TrelloExample
+{
+  private static final String PROTECTED_RESOURCE_URL = "https://api.trello.com/1/members/me/boards";
+
+  public static void main(String[] args)
+  {
+    // Replace these with your own api key and secret
+    String apiKey = "";
+    String apiSecret = "";
+
+    Scanner in = new Scanner(System.in);
+
+    if (apiKey.isEmpty() || apiSecret.isEmpty()) {
+      System.out.println("=== Setup ===");
+      System.out.println();
+
+      System.out.println("We need your apiKey:");
+      System.out.print(">>");
+      apiKey = in.nextLine();
+
+      System.out.println(".. and your apiSecret too:");
+      System.out.print(">>");
+      apiSecret = in.nextLine();
+    }
+
+    OAuthService service = new ServiceBuilder()
+                                .provider(TrelloApi.class)
+                                .apiKey(apiKey)
+                                .apiSecret(apiSecret)
+                                .build();
+
+    System.out.println("=== Trello's OAuth Workflow ===");
+    System.out.println();
+
+    // Obtain the Request Token
+    System.out.println("Fetching the Request Token...");
+    Token requestToken = service.getRequestToken();
+    System.out.println("Got the Request Token!");
+    System.out.println();
+
+    System.out.println("Now go and authorize Scribe here:");
+    System.out.println(service.getAuthorizationUrl(requestToken));
+    System.out.println("And paste the verifier here");
+    System.out.print(">>");
+    Verifier verifier = new Verifier(in.nextLine());
+    System.out.println();
+
+    // Trade the Request Token and Verifier for the Access Token
+    System.out.println("Trading the Request Token for an Access Token...");
+    Token accessToken = service.getAccessToken(requestToken, verifier);
+    System.out.println("Got the Access Token!");
+    System.out.println("(if your curious it looks like this: " + accessToken + " )");
+    System.out.println();
+
+    // Now let's go and ask for a protected resource!
+    System.out.println("Now we're going to access a protected resource...");
+    OAuthRequest request = new OAuthRequest(Verb.GET, PROTECTED_RESOURCE_URL);
+    service.signRequest(accessToken, request);
+    Response response = request.send();
+    System.out.println("Got it! Lets take a look at your board list...");
+    System.out.println();
+    System.out.println(response.getBody());
+
+    System.out.println();
+    System.out.println("Go and build something awesome with Scribe & trello.com :)");
+  }
+}