Android Open Source - twittah Tweet

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Back to project page twittah.
License

The source code is released under:
MIT License
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Java Source Code

package com.codepath.wangela.apps.twittah.models;
// ww  w .j  ava  2  s .  com
import java.io.Serializable;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.text.format.DateUtils;

import com.activeandroid.Model;
import com.activeandroid.annotation.Column;
import com.activeandroid.annotation.Column.ForeignKeyAction;
import com.activeandroid.annotation.Table;
import com.activeandroid.query.Delete;
import com.activeandroid.query.Select;

@Table(name = "Tweets")
public class Tweet extends Model implements Serializable {
  private static final long serialVersionUID = -8206447314307801065L;
  @Column(name = "Body")
  private String body;
  @Column(name = "Created_At")
  private String createdAt;
  @Column(name = "User", onUpdate = ForeignKeyAction.CASCADE, onDelete = ForeignKeyAction.CASCADE)
  private User user;
  @Column(name = "Tweet_ID", index = true, unique = true, onUniqueConflict = Column.ConflictAction.REPLACE)
  private String tid;
  @Column(name = "offline")
  private String offlineTweet = "N";
  private String createdAgo;

  public Tweet() {
    super();
  }

  public static List<Tweet> findAll() {
    return new Select().from(Tweet.class).execute();
  }

  public static void deleteAll() {
    new Delete().from(Tweet.class).execute();
  }

  public static List<Tweet> getAllOfflineTweets(int limit) {

    return new Select().from(Tweet.class).where("offline = ?", "Y")
        .orderBy("Created_At ASC").limit(limit).execute();
  }

  public String getBody() {
    return body;
  }

  public String getCreatedAt() {
    return createdAt;
  }

  public User getUser() {
    return user;
  }

  public String getTid() {
    return tid;
  }

  public String getCreatedAgo() {
    this.createdAgo = Tweet.getRelativeTimeAgo(this.createdAt);
    return createdAgo;
  }

  public static Tweet fromJson(JSONObject object) {
    Tweet tweet = new Tweet(); // removed when converting to SQLite
    // Extract values from JSON to populate the member variables
    try {
      tweet.body = object.getString("text");
      tweet.createdAt = object.getString("created_at");
      tweet.user = User.fromJson(object.getJSONObject("user"));
      tweet.tid = object.getString("id_str");
      tweet.createdAgo = getRelativeTimeAgo(tweet.createdAt);
    } catch (JSONException e) {
      e.printStackTrace();
      return null;
    }
    return tweet;
  }

  public static ArrayList<Tweet> fromJsonArray(JSONArray array) {
    ArrayList<Tweet> tweets = new ArrayList<Tweet>(array.length());
    JSONObject tweetJson = null;

    // Process each result in json array, decode and convert to tweet object
    for (int i = 0; i < array.length(); i++) {
      try {
        tweetJson = array.getJSONObject(i);
      } catch (Exception e) {
        e.printStackTrace();
        continue;
      }

      Tweet tweet = Tweet.fromJson(tweetJson);
      if (tweet != null) {
        tweet.getUser().save();
        tweet.save();
        tweets.add(tweet);
      }
    }

    return tweets;
  }

  // getRelativeTimeAgo("Mon Apr 01 21:16:23 +0000 2014");
  public static String getRelativeTimeAgo(String rawJsonDate) {
    String twitterFormat = "EEE MMM dd HH:mm:ss ZZZZZ yyyy";
    SimpleDateFormat sf = new SimpleDateFormat(twitterFormat,
        Locale.ENGLISH);
    sf.setLenient(true);

    String relativeTime = "";
    try {
      long epochTime = sf.parse(rawJsonDate).getTime();
      relativeTime = DateUtils.getRelativeTimeSpanString(epochTime,
          System.currentTimeMillis(), DateUtils.SECOND_IN_MILLIS)
          .toString();
    } catch (ParseException e) {
      e.printStackTrace();
    }

    return relativeTime;
  }

  @Override
  public String toString() {
    return getBody() + " - " + getUser().getScreenname();
  }

}
Java Source Code List
