DataCollections.FriendsnFollowersCollection.java Source code

Introduction

Here is the source code for DataCollections.FriendsnFollowersCollection.java

Source

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package DataCollections;

import DataAccess.TwitterResources;
import Logger.LogPrinter;
import datamanagement.User_dbo;
import datamanagement.UsersTable;
import java.util.ArrayList;
import java.util.List;
import java.util.ListIterator;
import twitter4j.PagableResponseList;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.User;
import twitter4j.api.FriendsFollowersResources;

/**
 *
 * @author Srikanth
 */
public class FriendsnFollowersCollection {
    Twitter twitter;
    FriendsFollowersResources ffresources;
    UserHelper userhelper;

    public FriendsnFollowersCollection() {
        twitter = TwitterResources.getTwitterSingleton();
        ffresources = twitter.friendsFollowers();
        userhelper = new UserHelper();

    }

    public ArrayList<User_dbo> collectfriendsfollowersofuser(User_dbo cuserdbo) throws InterruptedException {
        long cursor = -1;
        PagableResponseList<User> list;
        User user;
        User_dbo userdbo;
        ArrayList<User_dbo> userdbolist = new ArrayList<>();
        boolean available = true;
        Logger.LogPrinter.printLog(
                "Retrieving friends of the user  " + cuserdbo.values[User_dbo.map.get("screename")].string);
        while (available) {

            try {
                list = ffresources.getFriendsList(cuserdbo.values[User_dbo.map.get("user_id")].lnumber, cursor);
                ListIterator li = list.listIterator();
                while (li.hasNext()) {
                    user = (User) li.next();
                    LogPrinter.printLog("" + user.getName());
                    userdbo = userhelper.convertUserToUser_dbo(user);
                    userdbolist.add(userdbo);
                    //LogPrinter.printLog(" Friend retrieved"+userdbo.values[User_dbo.map.get("screename")].string);
                }
                if (list.hasNext()) {
                    cursor = list.getNextCursor();
                } else {
                    available = false;
                }
            } catch (Exception e) {
                e.printStackTrace();
                Logger.LogPrinter.printLog(" Sleeping... rate limit exceeded will try after " + 900 * 1000);
                Thread.sleep(900 * 1000 + 500);

                LogPrinter.printLog(" Message " + e.getMessage());
            }
        }
        LogPrinter.printLog("No of friends retrieved: " + userdbolist.size());
        available = true;
        cursor = 0;
        Logger.LogPrinter.printLog(
                "Retrieving followers of the user  " + cuserdbo.values[User_dbo.map.get("screename")].string);
        while (available) {

            try {
                list = ffresources.getFollowersList(cuserdbo.values[User_dbo.map.get("user_id")].lnumber, cursor);
                ListIterator li = list.listIterator();
                while (li.hasNext()) {
                    user = (User) li.next();
                    userdbo = userhelper.convertUserToUser_dbo(user);
                    userdbolist.add(userdbo);
                }
                if (list.hasNext()) {
                    cursor = list.getNextCursor();
                } else {
                    available = false;
                }
            } catch (Exception e) {
                Logger.LogPrinter.printLog(" Sleeping... rate limit exceeded will try after " + 900 * 1000);
                Thread.sleep(900 * 1000 + 500);

                LogPrinter.printLog(" Message " + e.getMessage());
            }
        }
        LogPrinter.printLog("No of friends/follwers retrieved: " + userdbolist.size());
        return userdbolist;
    }

    public void insertFriendsFollowers(ArrayList<User_dbo> userdbolist) {
        if (!userdbolist.isEmpty()) {
            LogPrinter.printLog(
                    "Insering Friends and Followers....No of users friends/followers" + userdbolist.size());
            ListIterator li = userdbolist.listIterator();
            while (li.hasNext()) {
                User_dbo userdbo = (User_dbo) li.next();
                User_dbo[] users = UsersTable
                        .select(" user_id = " + userdbo.values[User_dbo.map.get("user_id")].lnumber, 0, 2);
                if (users.length == 0) {
                    UsersTable.insert(userdbo);
                } else {
                    if (!users[0].values[User_dbo.map.get("udetails_processed")].bool) {
                        UsersTable.delete(userdbo.values[User_dbo.map.get("user_id")].lnumber);
                        userdbo.values[User_dbo.map.get("udetails_processed")].setValue("true");
                        UsersTable.insert(userdbo);
                    }
                }
            }
        }
        LogPrinter.printLog("Insering Friends and Followers is complete");
    }

    public void updateDatabasewithFriends_followers() throws InterruptedException {
        User_dbo[] users;
        int count = 100;
        long min_id = 0;
        boolean available = true;
        while (available) {
            users = UsersTable.select("fri_fol_processed = false ", min_id, count);
            if (users.length == 0) {
                available = false;
                continue;
            }
            Logger.LogPrinter.printLog("Retrieving the Friends_Followers of all users....");
            min_id = users[users.length - 1].values[User_dbo.map.get("id")].lnumber;
            for (User_dbo user : users) {
                Logger.LogPrinter.printLog("Processing friends/followers of the user  "
                        + user.values[User_dbo.map.get("screename")].string);
                insertFriendsFollowers(collectfriendsfollowersofuser(user));
                user.values[User_dbo.map.get("fri_fol_processed")].bool = true;
                long userid = user.values[User_dbo.map.get("user_id")].lnumber;
                UsersTable.update(user, " user_id =  " + userid);
            }
            Logger.LogPrinter.printLog("Friends and Followers of all the Users are processed..");
        }
    }
}