1 files changed, 0 insertions, 173 deletions
diff --git a/src/Chapter5/network/ExtractUserTagNetwork.java b/src/Chapter5/network/ExtractUserTagNetwork.java
deleted file mode 100644
index 43ae680..0000000
--- a/src/Chapter5/network/ExtractUserTagNetwork.java
+++ /dev/null
@@ -1,173 +0,0 @@
-/* TweetTracker. Copyright (c) Arizona Board of Regents on behalf of Arizona State University
- * @author shamanth
- */
-package Chapter5.network;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.util.HashMap;
-import java.util.Set;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-
-public class ExtractUserTagNetwork
-{
-
-    static final String DEF_INFILENAME = "ows.json";    
-
-    /**
-     * Extracts a map of all the hashtags a user has used in his tweets resulting in a bipartite network. The frequency of each tag is also returned in the form of a map.
-     * @param inFilename File containing a list of tweets as JSON objects
-     * @return A map containing the users as keys and a map containing the hashtags they use along with their frequency.
-     */
-    public HashMap<String,HashMap<String,Integer>> ExtractUserHashtagNetwork(String inFilename)
-    {
-        HashMap<String,HashMap<String,Integer>> usertagmap = new HashMap<String,HashMap<String,Integer>>();
-         BufferedReader br = null;
-        try{
-            br = new BufferedReader(new InputStreamReader(new FileInputStream(inFilename),"UTF-8"));
-            String temp = "";
-            while((temp = br.readLine())!=null)
-            {
-                try{
-                    JSONObject tweetobj = new JSONObject(temp);
-                    String text;
-                    String username;
-                    HashMap<String,Integer> tags = new HashMap<String,Integer>();
-                    if(!tweetobj.isNull("entities"))
-                    {
-                        JSONObject entities = tweetobj.getJSONObject("entities");
-                         JSONArray hashtags;
-                            try {
-                                hashtags = entities.getJSONArray("hashtags");
-                                for(int i=0;i<hashtags.length();i++)
-                                {
-                                    JSONObject tag = hashtags.getJSONObject(i);
-                                    String tg = tag.getString("text").toLowerCase();
-                                    if(!tags.containsKey(tg))
-                                    {
-                                        tags.put(tg,1);
-                                    }
-                                    else
-                                    {
-                                        tags.put(tg, tags.get(tg)+1);
-                                    }
-                                }
-                            }catch(JSONException ex)
-                            {
-                                ex.printStackTrace();
-                            }
-                    }
-                    else
-                    if(!tweetobj.isNull("text"))
-                    {
-                        text = tweetobj.getString("text");
-                        tags = ExtractHashTags(text);
-                    }
-                    if(!tweetobj.isNull("user"))
-                    {
-                        JSONObject userobj = tweetobj.getJSONObject("user");
-                        username = "@"+userobj.getString("screen_name").toLowerCase();
-                        if(usertagmap.containsKey(username))
-                        {
-                            HashMap<String,Integer> usertags = usertagmap.get(username);
-                            Set<String> keys = tags.keySet();
-                            for(String k:keys)
-                            {
-                                if(usertags.containsKey(k))
-                                {
-                                    usertags.put(k, usertags.get(k)+tags.get(k));
-                                }
-                                else
-                                {
-                                    usertags.put(k, tags.get(k));
-                                }
-                            }
-                            usertagmap.put(username, usertags);
-                        }
-                        else
-                        {
-                            usertagmap.put(username, tags);
-                        }
-                    }
-                }catch(JSONException ex)
-                {
-                    ex.printStackTrace();
-                }
-            }
-        }catch(IOException ex)
-        {
-            ex.printStackTrace();
-        }finally{
-            try {
-                br.close();
-            } catch (IOException ex) {
-                Logger.getLogger(ExtractUserTagNetwork.class.getName()).log(Level.SEVERE, null, ex);
-            }
-        }
-        return usertagmap;
-    }
-
-    /**
-     * Extracts all the hashtags mentioned in a tweet and creates a map with the frequency of their occurrence.
-     * @param text
-     * @return A map containing the hashtags as keys and their frequency as value
-     */
-    public HashMap<String,Integer> ExtractHashTags(String text)
-    {
-        Pattern p = Pattern.compile("#[a-zA-Z0-9]+");
-        Matcher m = p.matcher(text);
-        HashMap<String,Integer> tags = new HashMap<String,Integer>();
-        while(m.find())
-        {
-            String tag = text.substring(m.start(),m.end()).toLowerCase();
-            if(!tags.containsKey(tag))
-            {
-                tags.put(tag,1);
-            }
-            else
-            {
-                tags.put(tag, tags.get(tag)+1);
-            }
-        }
-        return tags;
-    }
-
-    public static void main(String[] args)
-    {
-        ExtractUserTagNetwork eutn = new ExtractUserTagNetwork();
-
-        String infilename = DEF_INFILENAME;
-        if(args!=null)
-        {
-            if(args.length>=1&&!args[0].isEmpty())
-            {
-                File fl = new File(args[0]);
-                if(fl.exists())
-                {
-                    infilename = args[0];
-                }
-            }
-        }
-        HashMap<String, HashMap<String,Integer>> usertagmap = eutn.ExtractUserHashtagNetwork(infilename);
-        Set<String> keys = usertagmap.keySet();
-        for(String key:keys)
-        {
-            System.out.println(key);
-            HashMap<String,Integer> tags = usertagmap.get(key);
-            Set<String> tagkeys = tags.keySet();
-            for(String tag:tagkeys)
-            {
-                System.out.println(tag+","+tags.get(tag));
-            }
-        }
-    }
-}