BuzzSample.java

/*
 * Copyright (c) 2010 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.api.client.sample.buzz;

import com.google.api.client.googleapis.json.JsonCParser;
import com.google.api.client.http.HttpResponseException;
import com.google.api.client.sample.buzz.model.BuzzActivity;
import com.google.api.client.sample.buzz.model.BuzzActivityFeed;
import com.google.api.client.sample.buzz.model.BuzzObject;
import com.google.api.client.sample.buzz.model.Util;

import java.io.IOException;

/**
 * @author Yaniv Inbar
 */
public class BuzzSample {

  static final String APP_DESCRIPTION = "Buzz API Java Client Sample";

  public static void main(String[] args) {
    Util.enableLogging();
    try {
      try {
        setUpTransport();
        authorize();
        showActivities();
        BuzzActivity activity = insertActivity();
        activity = updateActivity(activity);
        deleteActivity(activity);
        Auth.revoke();
      } catch (HttpResponseException e) {
        System.err.println(e.response.parseAsString());
        throw e;
      }
    } catch (Throwable t) {
      t.printStackTrace();
      Auth.revoke();
      System.exit(1);
    }
  }

  private static void setUpTransport() {
    JsonCParser parser = new JsonCParser();
    parser.jsonFactory = Util.JSON_FACTORY;
    Util.TRANSPORT.addParser(parser);
  }

  private static void authorize() throws Exception {
    Auth.authorize();
  }

  private static void showActivities() throws IOException {
    View.header("Show Buzz Activities");
    BuzzActivityFeed feed = BuzzActivityFeed.list();
    View.display(feed);
  }

  private static BuzzActivity insertActivity() throws IOException {
    View.header("Insert Buzz Activity");
    BuzzActivity activity = new BuzzActivity();
    activity.object = new BuzzObject();
    activity.object.content = "Posting using " + BuzzSample.APP_DESCRIPTION;
    BuzzActivity result = activity.post();
    View.display(result);
    return result;
  }

  private static BuzzActivity updateActivity(BuzzActivity activity) throws IOException {
    View.header("Update Buzz Activity");
    activity.object.content += " (http://goo.gl/rOyC)";
    BuzzActivity result = activity.update();
    View.display(result);
    return result;
  }

  private static void deleteActivity(BuzzActivity activity) throws IOException {
    View.header("Delete Buzz Activity");
    activity.delete();
    System.out.println("Deleted.");
  }
}